DE102021134153A1 - Measuring system, measuring method and computer program product - Google Patents

Abstract

The invention relates to a measuring system (10) for measuring gamma radiation (G), the measuring system (10) having a gamma sensor device (20) for measuring gamma radiation (G), a positioning device (30) for determining the position of the gamma sensor device (20 ) and a computer unit (40), wherein the gamma sensor device (20) and the position device (30) are connected to the computer unit (40) for data communication with at least one flexible conductor (50). The invention also relates to a measuring method (100) for measuring gamma radiation (G) using a measuring system (10) and a computer program product.

Description

The invention relates to a measuring system for measuring gamma radiation, in particular for buildings, rooms, pipes and devices with small, narrow and/or difficult-to-access openings, cross-sections and/or dimensions, a measuring method for measuring gamma radiation using a measuring system and a computer program product.

For example, in the case of disarmament and/or dismantling of a nuclear facility, there is an extensive obligation to provide evidence of compliance with activity limit values for the components, facility and/or structure sections, in order to ensure that the components, facility and/or structure sections are treated appropriately in each case ensure from the activity. The operator of the exemplary nuclear facility, for example, fulfills this obligation by extensive series of measurements on the activity of the components, facility and/or building sections, with each activity value requiring a comprehensible, defined location reference in order to be able to carry out a permissible assessment of the components, facility and/or building sections make possible.

The measuring systems for measuring gamma radiation that are currently publicly known in the state of the art are mostly designed as large-volume measuring systems. The known, special measuring systems for measuring gamma radiation, in particular for buildings, rooms, pipes and/or devices with small, narrow and/or difficult-to-access openings, cross-sections and/or dimensions, usually have the disadvantage of a low energy resolution and/or a mostly at least partially rigid and/or inflexible design. Known measuring systems are designed, for example, as rigid lances which, for example, do not allow any deformation, bending, movement and/or any other adaptation to the local conditions of the device to be measured. A measurement of gamma radiation, in particular for buildings, rooms, pipes and/or devices with small, narrow and/or difficult-to-access openings, cross-sections and/or dimensions, is therefore unnecessarily difficult or even impossible with the known measuring systems.

It is therefore the object of the present invention to eliminate or at least partially eliminate the disadvantages in the prior art described above. In particular, the object of the invention is to provide a measuring system that enables a particularly simple measurement of gamma radiation, in particular for buildings, rooms, pipes and/or devices with small, narrow and/or difficult-to-access openings, cross-sections and/or dimensions. In particular, it is also the object of the invention to provide a measuring method for measuring gamma radiation using a measuring system.

The above object is solved by the patent claims. In particular, the task is solved by a measuring system with the features of independent claim 1. The task is also solved by a measuring method with the features of independent claim 12 and a computer program product with the features of independent claim 14. Further advantages and details of the invention result from the dependent claims, the description and the drawings. Features that are described in connection with the measuring system according to the invention also apply, of course, in connection with the measuring method according to the invention, the computer program product according to the invention and vice versa, so that the disclosure of the individual aspects of the invention is or can always be referred to mutually.

According to a first aspect of the invention, the object is achieved by a measuring system for measuring gamma radiation. The measurement system has a gamma sensor device for measuring gamma radiation and a position device for determining the position of the gamma sensor device. The measuring system is characterized and particularly advantageous in that the measuring system comprises a propulsion device that is flexible at least in sections, the gamma sensor device and the positioning device being arranged on the propulsion device and the propulsion device being designed to propel the gamma sensor device and the positioning device.

A preferably enabled aspect of the measuring system according to the invention is that the measuring system, in particular at least the gamma sensor device and the positioning device, are structurally compact enough for complex measurement geometries, such as pipes and/or narrow volumes, and at the same time have a sufficiently high spectral resolution to to distinguish the emission lines of the anthropogenic radionuclides from those of the primordial radionuclides.

The structures, rooms, pipes and/or devices with small, narrow and/or difficult-to-access openings, cross-sections and/or dimensions should be understood according to the invention as difficult-to-access sections. For example, the measuring system according to the invention is intended to measure gamma radiation in pipes, lei and/or in spaces with very limited dimensions and/or access. For example, the gamma sensor device has dimensions of a front face of less than 50×50 mm, preferably less than 40×40 mm, particularly preferably less than 30×30 mm. Furthermore, the gamma sensor device preferably has a longitudinal extension, in particular orthogonal to the end face, of less than 100 mm, preferably less than 75 mm, particularly preferably less than 51 mm. For example, the gamma sensor device is arranged and/or attached to the propulsion device according to the invention with a rear face opposite the front face.

The positioning device is designed to determine the position of the gamma sensor device. For this purpose, the positioning device and the gamma sensor device are preferably arranged in a defined manner in relation to one another and/or attached to the measuring system. As an alternative or in addition, the positioning device comprises a transmission unit and a reception unit and/or is designed with a cable connection. The transmission unit is configured as a 512 Hz transmission unit, for example. The receiving unit is preferably designed as a triangulation tag and enables the position of the transmitting unit to be determined. The transmission unit and/or the reception unit can be designed to be active or passive. The positioning device enables the position of the gamma sensor device to be determined, preferably via a radio standard. The positioning device is preferably designed in such a way that the positioning device compares a specific position of the gamma sensor device with a digital plan of the pipelines, buildings, rooms and/or the device to be measured that is otherwise configured, thus enabling an improvement in the position determination of the gamma sensor device .

The gamma sensor device is designed to measure gamma radiation. The gamma sensor device is preferably designed as a scintillation detector device in order to enable high resolution and at the same time small dimensions of the gamma sensor device. The gamma sensor device is preferably used to create high-resolution spectra and thus to determine nuclide-specific activities.

The measuring system according to the invention is particularly advantageous since the gamma sensor device and the positioning device are arranged on the propulsion device and the propulsion device is designed to propel the gamma sensor device and the positioning device. The propulsion device is designed to be flexible, at least in sections. In contrast to the known prior art, the propulsion device is not rigid, but advantageously allows bending, adjustment and/or movement in order to advantageously measure gamma radiation, in particular for buildings, rooms, pipes and/or devices with small, narrow and / or difficult to access openings, cross sections and / or dimensions, particularly easy to allow.

Within the scope of the invention, the propulsion device is to be understood as a device for propelling the gamma sensor device and the positioning device. For example, the propulsion device allows the gamma sensor device and the positioner device to be pushed piecemeal into a pipe for measuring gamma radiation in the pipe. The propulsion device is preferably designed as a hose-like device and preferably enables a defined advance and/or a defined movement of the gamma sensor device and the positioning device in, for example, a pipe and/or in space. The propulsion device preferably corresponds in cross-section to the gamma sensor device and/or the positioning device or is designed smaller than the gamma sensor device and/or the positioning device in order to enable advantageously unhindered propulsion of the gamma sensor device and the positioning device. The propulsion device is preferably at least one meter, particularly preferably several meters long, so that the propulsion device enables the gamma sensor device and the positioning device to be propelled over a corresponding length in pipelines, buildings, rooms and/or the devices to be measured that are otherwise configured. Within the scope of the invention, the propulsion device is preferably to be understood as a pig for pipes. The propulsion device is preferably flexible, but can be rigid if required. A propulsion device configured in this way enables a defined movement and position of the propulsion device, so that the propulsion device enables a controlled advance of the propulsion device itself and the gamma sensor device and the positioning device. Clearly described, the propulsion device thus enables the gamma sensor device and the positioning device to be advanced through a pipeline, for example, whereby the propulsion device preferably avoids contact and thus unwanted contamination of the measuring system with the pipe wall.

A measuring system designed in this way is particularly advantageous since the measuring system is able to measure gamma radiation, in particular for buildings, rooms, pipes and/or devices with small, narrow and/or difficult-to-access openings ments, cross sections and / or dimensions, particularly easy.

According to a preferred further development of the invention, it can be provided in a measuring system that the measuring system has a computer unit, the gamma sensor device and/or the positioning device being connected to the computer unit for data communication with at least one conductor that is flexible at least in sections. The at least one flexible conductor is preferably arranged and/or fastened at least in sections within and/or on the propulsion device. The at least one flexible conductor is preferably used for data transmission from the gamma sensor device and/or the position device to the computer unit. The measuring system preferably has exactly one flexible conductor. The comparison described above between determined position data of the position device and, for example, a digital plan is preferably carried out by the computer unit. The computer unit according to the invention is to be understood within the scope of the invention as an evaluation unit and/or storage unit for the recorded data on the gamma radiation and/or on the position of the gamma sensor device and/or the position device. A flexible conductor according to the invention is preferably to be understood as a cable, in particular a bus cable, and/or has a length that corresponds at least to the length of the propulsion device or essentially to the length of the propulsion direction. In the context of the invention, the wording “X or essentially X” should be understood as a possible, small deviation, for example due to manufacturing tolerances, material and/or process properties, without changing the underlying, intended function of the feature. A measuring system configured in this way is particularly advantageous since the measuring system enables data transmission from the gamma sensor device and/or the positioning device to the computer unit and evaluation and/or storage of the recorded data using simple and inexpensive means. The at least partially flexible configuration of the at least one conductor enables advantageous mobility of the at least one conductor and thus of the propulsion device, the gamma sensor device and/or the positioning device. The at least partially flexible configuration of the at least one conductor thus enables a particularly simple measurement of gamma radiation, in particular for buildings, rooms, pipes and/or devices with small, narrow and/or difficult-to-access openings, cross-sections and/or dimensions.

According to a preferred further development of the invention, it can be provided in a measuring system that the gamma sensor device and the positioning device are arranged in a common base body and/or at a free end of the at least one flexible conductor and/or the propulsion device. A common structural design of the gamma sensor device and the positioning device in the base body is particularly advantageous since the base body enables a defined arrangement of the gamma sensor device to the positioning device and vice versa. A position determination of the gamma sensor device by the positioning device is thus advantageously improved and/or configured more precisely. A common base body is preferably designed as a housing for the gamma sensor device and the positioning device. The gamma sensor device and the positioning device are preferably arranged on a free end of the at least one flexible conductor, in particular with the gamma sensor device being arranged directly on the free end of the at least one flexible conductor and/or the propulsion device and with the positioning device being supported by the free End of the at least one flexible conductor and / or the propulsion device spaced, behind and / or next to the gamma sensor device is arranged. A measuring system designed in this way is particularly advantageous because the measuring system enables a measurement of gamma radiation, in particular for buildings, rooms, pipes and/or devices with small, narrow and/or difficult-to-access openings, cross-sections and/or dimensions, through the common base body and/or or made possible in a particularly simple manner by arranging the gamma sensor device and the positioning device on a free end of the at least one flexible conductor and/or the propulsion device.

According to a preferred further development of the invention, it can be provided in a measuring system that the at least one flexible conductor and/or the propulsion device that is flexible at least in sections includes at least one movement device, the movement device being used to move the flexible propulsion device and/or the at least one flexible conductor at least in sections , in particular the free end of the flexible propulsion device and/or the at least one flexible conductor, is configured in at least one plane, in particular in three planes. Within the scope of the invention, the movement device is to be understood as the device that enables a movement of the at least one flexible conductor and/or the at least partially flexible propulsion device. A measurement system designed in this way is preferably clearly described as being comparable to the movement device of a known endoscope device. The movement device according to the invention preferably enables movement of the flexible front propulsion device and/or the at least one flexible conductor, in particular the free end of the flexible propulsion device and/or the at least one flexible conductor, in at least one plane, in particular in three planes. The two or even three planes are preferably orthogonal to one another. In particular, the movement device is designed such that the movement device enables a three-dimensional movement of the flexible propulsion device and/or the at least one flexible conductor, in particular the free end of the flexible propulsion device and/or the at least one flexible conductor. The structural design of the moving device is preferably designed as a hydraulic, pneumatic and/or mechanical moving device. For example, the movement device has at least one pair of hydraulic actuators per movement plane in order to enable an advantageous movement of the flexible propulsion device and/or the at least one flexible conductor, in particular the free end of the flexible propulsion device and/or the at least one flexible conductor. The actuators are designed as cylinders, for example. The movement device preferably enables movement of the flexible propulsion device and/or the at least one flexible conductor, in particular the free end of the flexible propulsion device and/or the at least one flexible conductor, inclined and/or orthogonal to the longitudinal extent of the flexible propulsion device and/or the at least one flexible conductor. Descriptively described, a movement device thus enables movement and/or alignment of the propulsion device and/or the at least one flexible conductor, in particular the free end of the flexible propulsion device and/or the at least one flexible conductor, for example in a pipe, for example around a curve in the pipe. The movement device is preferably connected to the computer unit for data communication and/or can be controlled by the computer unit.

According to a preferred further development of the invention, it can be provided in a measuring system that the measuring system, in particular the propulsion device, has a drive device for driving the propulsion device, in particular for driving a movement of the propulsion device. Within the scope of the invention and in contrast to the previously described movement device of the measuring system, a drive device is preferably to be understood as a device for moving the propulsion device along the longitudinal extension of the flexible propulsion device and/or the at least one flexible conductor. Described clearly, a drive device thus enables a movement of the propulsion device, for example, along a pipe and/or into a pipe. Preferably, the drive device enables the detection of a length of the propulsion device and/or the conductor that has been driven, propelled and/or moved into, for example, a pipe. Thus, the position determination of the gamma sensor device is advantageously improved, in particular in connection with a previously described digital plan of the buildings, rooms, pipes and/or devices with small, narrow and/or difficult to access openings, cross sections and/or dimensions. The drive device according to the invention is designed manually or mechanically, with a manual design enabling, for example, a drive by a user and/or with a mechanical design comprising, for example, a drive by a motor. A measuring system designed in this way is particularly advantageous because the measuring system makes it particularly easy to measure gamma radiation, in particular for buildings, rooms, pipes and/or devices with small, narrow and/or difficult-to-access openings, cross-sections and/or dimensions, using the drive device .

According to a preferred further development of the invention, it can be provided in a measuring system that the measuring system comprises an optical sensor device for optically detecting the area surrounding the optical sensor device, in particular the optical sensor device being attached to the free end of the propulsion device and/or the at least one flexible Head is arranged. An optical sensor device according to the invention is preferably designed as a camera. The optics sensor device serves to optically detect the surroundings of the optics sensor device and thus advantageously enables improved guidance and/or navigation of the propulsion device, improved position determination of the gamma sensor device and/or improved avoidance of unwanted contact between the measuring system and the surroundings . A measuring system designed in this way is particularly advantageous because the measuring system enables a measurement of gamma radiation, in particular for buildings, rooms, pipes and/or devices with small, narrow and/or difficult-to-access openings, cross-sections and/or dimensions, by the optical sensor device in particular simply made possible.

According to a preferred further development of the invention, it can be provided in a measuring system that the measuring system comprises a lighting device for illuminating the area surrounding the lighting device, in particular the lighting device being arranged on the free end of the propulsion device and/or the at least one flexible conductor. A lighting device according to the invention is preferred as at least one designed lamp. The lighting device serves to illuminate the surroundings of the lighting device and thus advantageously enables improved guidance and/or navigation of the propulsion device, improved position determination of the gamma sensor device and/or improved avoidance of unwanted contact between the measuring system and the surroundings. A lighting device represents an advantageous further development of the invention, particularly in combination with the previous section and the feature of the optical sensor device Devices with small, narrow and/or difficult-to-access openings, cross-sections and/or dimensions, made particularly easy by the lighting device.

According to a preferred further development of the invention, it can be provided in a measuring system that the measuring system comprises at least one holding device, the holding device for holding the propulsion device and/or the at least one flexible conductor, in particular the free end of the propulsion device and/or or the at least one flexible conductor. A holding device according to the invention is to be understood within the scope of the invention as a device for securing the position, for holding in a defined manner, for damping against, for example, vibrations and/or for stabilizing the propulsion device and/or the at least one flexible conductor. The holding device preferably comprises at least one hook, one holding arm and/or one support. Alternatively or additionally, the holding device comprises extendable and/or bendable elements, such as sheet metal, plastics or other bendable materials, for supporting the holding device in relation to the environment. Alternatively or additionally, the holding device comprises at least one bellows, wherein the bellows can be inflated to secure the position and support against the environment, in particular against a pipe, and can be emptied to release the support. The measuring system preferably has more than one holding device, the at least two holding devices being arranged, in particular uniformly, along the longitudinal extent of the propulsion device and/or radially around the propulsion device, the gamma sensor device and/or the positioning device. The holding device preferably has at least one actuator, with the at least one actuator and/or the structural configuration of the holding device preferably being designed as a hydraulic, pneumatic and/or mechanical holding device. The holding device according to the invention advantageously enables the position of the measuring system to be secured and/or contamination of the measuring system by controlled contact with the surroundings by the holding device and thus avoiding contact with the surroundings with the rest of the measuring system is advantageously avoided. Furthermore, the holding device preferably enables a kind of caterpillar movement of the measuring system, in particular of the propulsion device and/or the free end of the at least one flexible conductor and/or the propulsion device. Viewed from the free end of the propulsion device, a rear section of the propulsion device is held by a first holding device and a front section of the propulsion device is advanced from this holding point, for example by an actuator. A second holding device can then be activated in the front section and create another holding point. The first holding device and thus the first, rear holding point can then be released and the rear section can be tightened by the said actuator, for example. These movement and holding steps can be carried out repeatedly and thus advantageously enable a forward movement of the measuring system, in particular the propulsion device, the gamma sensor device and the positioning device, by the holding device according to the invention.

According to a preferred further development of the invention, it can be provided in a measuring system that the measuring system comprises a winding device, the winding device being designed for winding and unwinding the propulsion device and/or the at least one flexible conductor, in particular the winding device for recording a wound-out length the propulsion device and/or the at least one flexible conductor. As described above, the propulsion device according to the invention is preferably several meters long, so that the propulsion device enables the gamma sensor device and the positioning device to be propelled over a corresponding length in pipelines, buildings, rooms and/or other devices to be measured. It is consequently advantageous in practice if a propulsion device designed in this way can be wound up and unwound on a winding device. It is also advantageous if a developed length of the propulsion device and/or the at least one flexible conductor can be detected via the winding device, in particular with the winding device being connected to the computer unit in a data-communicating manner in order to provide the data on the developed length and thus determine the position of the gamma To improve sensor device advantageous.

According to a preferred further development of the invention, it can be provided in a measuring system that the measuring system comprises a removal device for removing contaminants from the area surrounding the removal device, in particular with the removal device being arranged at the free end of the propulsion device and/or the at least one flexible conductor. The removal can preferably be received and/or collected by the removal device. For example, the removal is sucked off by a suction device of the measuring system and/or can be evaluated, for example, by a sensor device of the measuring system and/or by a separate laboratory gamma spectrometry. A measuring system configured in this way is particularly advantageous because the measuring system is able to measure gamma radiation and remove impurities, in particular for buildings, rooms, pipes and/or devices with small, narrow and/or difficult-to-access openings, cross-sections and/or dimensions the removal device allows particularly easy. The removal device preferably comprises a textile, cloth and/or some other absorbent material. The removal is preferably carried out by the removal device during a movement of the propulsion device. The gamma sensor device can be used individually or in any combination with the optical sensor device, the lighting device and the removal device.

According to a preferred further development of the invention, it can be provided in a measuring system that the gamma sensor device comprises at least one scintillation probe, in particular the scintillation probe comprising at least one strontium iodide crystal. The gamma sensor device according to the invention is designed to measure gamma radiation. The gamma sensor device is preferably designed as a scintillation detector device with at least one scintillation probe in order to enable high resolution and at the same time small dimensions of the gamma sensor device. Scintillation detectors do not need any cooling and thus advantageously allow a small installation space requirement. The gamma sensor device is preferably used to create high-resolution spectra and thus to determine nuclide-specific activities. Since strontium iodide has an inherently stable isotopic composition, the corresponding crystals have a particularly low intrinsic activity in relation to the high energy resolution scintillators available on the market. Compared to LaBr (Ce) scintillators, for example, the intrinsic activity of strontium iodide crystals is up to forty times lower. The energy resolution is the smallest distance between two energies at which the two photopeaks can still be evaluated separately. For example, the gamma sensor device according to the invention has an energy resolution of at most 6% at 122 keV, at most 3.2% at 662 keV and/or at most 2% at 1333 keV. The gamma sensor device according to the invention preferably has an energy resolution of at most 3.2 to 3.5% over the entire energy spectrum.

• - Bereitstellen des Messsystems,
• - Bestimmen wenigstens einer Position der Gamma-Sensorvorrichtung durch die Positionsvorrichtung des Messsystems,
• - Messen von Gammastrahlung durch die Gamma-Sensorvorrichtung des Messsystems.

According to a second aspect of the invention, the object is achieved by a measuring method for measuring gamma radiation using a measuring system. The measuring procedure has the following procedural steps:

• - Provision of the measuring system,
• - determining at least one position of the gamma sensor device by the position device of the measuring system,
• - Measurement of gamma radiation by the measurement system's gamma sensor device.

The measuring system is preferably designed according to the first aspect. All the advantages that have already been described for the measuring system according to the first aspect of the invention result from the described measuring method. Unless explicitly stated otherwise, the method steps described above and below can be carried out individually, together, once, multiple times, at the same time and/or one after the other in any order. A designation as, for example, “first procedural step” and “second procedural step” does not require any chronological order and/or prioritization. A preferred order of the method steps provides that the method steps are carried out in the order listed.

• - Übertragen der erfassten Daten zu der wenigstens einen Position und der Gammastrahlung an die Rechnereinheit des Messsystems,
• - Vortreiben der zumindest abschnittsweise flexiblen Vortriebsvorrichtung und/oder des wenigstens einen flexiblen Leiters, insbesondere durch die die Bewegungsvorrichtung des Messsystems und/oder durch die Haltevorrichtung des Messsystems,
• - Erfassen einer vorgetriebenen und/oder abgewickelten Länge der zumindest abschnittsweise flexiblen Vortriebsvorrichtung und/oder des wenigstens einen flexiblen Leiters durch die Wickelvorrichtung des Messsystems,
• - Abtragen von Verunreinigungen der Umgebung der Abtragsvorrichtung durch die Abtragsvorrichtung des Messsystems.

According to a preferred further development of the invention, the measurement method can also include at least one of the following method steps:

• - Transmission of the recorded data on the at least one position and the gamma radiation to the computer unit of the measuring system,
• - advancing the at least partially flexible propulsion device and/or the at least one flexible conductor, in particular through the movement device of the measuring system and/or through the holding device of the measuring system,
• - detecting a driven and/or unwound length of the at least partially flexible driving device and/or the at least one flexible conductor by the winding device of the measuring system,
• - Removal of contaminants in the environment of the removal device by the removal device of the measuring system.

According to a third aspect of the invention, a computer program product is provided. The computer program product comprises commands which, when executed, in particular the commands and/or the computer program product, by a computer unit cause the computer unit to carry out a measurement method according to the invention.

A computer program product according to the invention thus has the same advantages as have already been described in detail with reference to a measurement method according to the invention. The method can in particular be a computer-implemented method. The computer program product may be implemented as computer-readable instruction code in any suitable programming language, such as JAVA, C++, C#, and/or Python. The computer program product can be stored on a computer-readable storage medium such as a data disk, a removable drive, a volatile or non-volatile memory, or a built-in memory/processor. The instruction code can affect or control a computer or other programmable device such as a computing unit of a measurement system in such a way that the instructions are executed. Furthermore, the computer program product can be made available in a network such as the Internet, from which it can be downloaded by a user if required. The computer program product can be and/or be implemented both by means of software and by means of one or more special electronic circuits, i.e. in hardware or in any hybrid form, i.e. by means of software components and hardware components.

• 1 in einer perspektivischen Ansicht ein Messsystem mit einer Gamma-Sensorvorrichtung, einer Positionsvorrichtung, einer Vortriebsvorrichtung, einer Wickelvorrichtung und einer Rechnereinheit,
• 2 in einer perspektivischen Ansicht ein Messsystem mit einer Gamma-Sensorvorrichtung, einer Positionsvorrichtung, einer Vortriebsvorrichtung, einer Haltevorrichtung und einer Abtragsvorrichtung, und
• 3 in einem Flussdiagramm ein erfindungsgemäßes Messverfahren.

A measuring system according to the invention and a measuring method are explained in more detail below with reference to drawings. They each show schematically:

• 1 in a perspective view a measuring system with a gamma sensor device, a positioning device, a propulsion device, a winding device and a computer unit,
• 2 in a perspective view, a measuring system with a gamma sensor device, a positioning device, a propulsion device, a holding device and a removal device, and
• 3 in a flowchart, a measurement method according to the invention.

Elements with the same function and mode of action are in the 1 until 3 each provided with the same reference numerals.

In 1 a measuring system 10 for measuring gamma radiation G is shown schematically in a perspective view. The measurement system 10 has a gamma sensor device 20 for measuring gamma radiation G and a position device 30 for determining the position of the gamma sensor device 20 . The measuring system 10 further comprises a flexible propulsion device 80, wherein the gamma sensor device 20 and the positioning device 30 are arranged on the propulsion device 80 and the propulsion device 80 is designed to propel the gamma sensor device 20 and the positioning device 30. The measuring system 10 has a computer unit 40, the gamma sensor device 20 and the position device 30 being connected to the computer unit 40 for data communication by a flexible conductor 50. The gamma sensor device 20 and the positioning device 30 are arranged in a common base body 22 and at a free end 52 of the at least one flexible conductor 50 and the propulsion device 80 . The flexible conductor 50 and the flexible propulsion device 80 comprise, for example, three movement devices 54, the movement devices 54 for moving the flexible propulsion device 80 and the flexible conductor 50, here the free end 52 of the flexible propulsion device 80 and the flexible conductor 50, being configured in three planes . The measuring system 10 , here the propulsion device 80 , has a drive device 84 for driving the propulsion device 80 , here a movement of the propulsion device 80 . Measuring system 10 includes a winding device 82, with winding device 82 being designed for winding and unwinding propulsion device 80 and the at least one flexible conductor 50, with winding device 82 being designed for detecting an unwound length of propulsion device 80 and flexible conductor 50.

In 2 a further measuring system 10 for measuring gamma radiation G is shown schematically. The measuring system 10 includes the explanations for 1 In addition, an optical sensor device 60 for optically detecting the surroundings of the optical sensor device 60, the optical sensor device 60 being arranged on the free end 52 of the propulsion device 80 and the at least one flexible conductor 50. The measuring system 10 also includes a lighting device 70 for illuminating the area surrounding the lighting device 70 , the lighting device 70 also being arranged on the free end 52 of the propulsion device 80 and the at least one flexible conductor 50 . The measurement system 10 also includes a holding device Direction 90, wherein the holding device 90 is designed to hold the propulsion device 80 and the at least one flexible conductor 50 in a secure position, here the free end 52 of the propulsion device 80 and the flexible conductor 50. The holding device 90 is designed here as bellows, the bellows being able to be inflated to secure the position and provide support against the environment, here against a pipe, and to be emptied to release the support. The measuring system 10 includes a removal device 92 for removing impurities from the environment of the removal device 92, the removal device 92 being arranged at the free end of the propulsion device 80 and the at least one flexible conductor 50, behind the holding device 90.

In 3 a measurement method 100 according to the invention is shown schematically in a flow chart. In 3 only the reference numbers of the method steps are shown for a better overview. In a first method step, the measurement method 100 comprises the provision 102 of the measurement system 10. The measurement system 10 is preferably designed according to the first aspect. In a further method step, the measuring method 100 includes the determination 104 of at least one position P of the gamma sensor device 20 by the position device 30. The measuring method 100 includes in a further method step the measuring 106 of gamma radiation G by the gamma sensor device 20. The measuring method 100 includes in a further method step, the transmission 108 of the data on the at least one position P and the gamma radiation G to the computer unit 40. In a further method step, the measurement method 100 comprises the propulsion 110 of the at least partially flexible propulsion device 80 and/or the at least one flexible conductor 50 , through which the movement device 54 and the holding device 90. In a further method step, the measuring method 100 comprises the detection 112 of a driven and unwound length of the flexible driving device 80 and the flexible conductor 50 by the winding device 82. The measuring method 100 comprises in a further method step that Removal 114 of contaminants in the area surrounding the removal device 92 by the removal device 92.

Reference List

10

measuring system

20

gamma sensor device

22

body

30

position device

40

computing unit

50

Director

52

free end

54

moving device

60

Optics sensor device

70

lighting device

80

propulsion device

82

winding device

84

drive device

90

holding device

92

removal device

100

measurement method

102

Provide

104

Determine

106

Measure

108

Transfer

110

propel

112

Capture

114

removal

G

gamma radiation

P

position

Claims (14)

Measuring system (10) for measuring gamma radiation (G), the measuring system (10) having a gamma sensor device (20) for measuring gamma radiation (G) and a positioning device (30) for determining the position of the gamma sensor device (20), characterized that the measuring system (10) comprises an at least partially flexible propulsion device (80), the gamma sensor device (20) and the positioning device (30) being arranged on the propulsion device (80) and the propulsion device (80) for propelling the gamma Sensor device (20) and the position device (30) is designed. Measuring system (10) according to claim 1 , characterized in that the measuring system (10) has a computer unit (40), the gamma sensor device (20) and/or the positioning device (30) having at least one at least partially flexible conductor (50) for data communication with the computer unit (40) are connected. Measuring system (10) according to one of the preceding claims, characterized in that the gamma sensor device (20) and the positioning device (30) in a common base body (22) and/or at a free end (52) of the at least one flexible conductor ( 50) and/or the propulsion device (80) are arranged. Measuring system (10) according to one of the preceding claims, characterized in that the at least one flexible conductor (50) and/or the at least partially flexible propulsion device (80) comprises at least one movement device (54), the movement device (54) for at least partially Movement of the flexible propulsion device (80) and/or the at least one flexible conductor (50), in particular the free end (52) of the flexible propulsion device (80) and/or the at least one flexible conductor (50), in at least one plane, in particular in three levels. Measuring system (10) according to one of the preceding claims, characterized in that the measuring system (10), in particular the propulsion device (80), has a drive device (84) for driving the propulsion device (80), in particular a movement of the propulsion device (80). . Measuring system (10) according to one of the preceding claims, characterized in that the measuring system (10) comprises an optical sensor device (60) for optically detecting the area surrounding the optical sensor device (60), in particular the optical sensor device (60) on the free end (52) of the propulsion device (80) and/or the at least one flexible conductor (50) is arranged. Measuring system (10) according to one of the preceding claims, characterized in that the measuring system (10) comprises a lighting device (70) for illuminating the area surrounding the lighting device (70), in particular wherein the lighting device (70) is at the free end (52) of the Propulsion device (80) and / or the at least one flexible conductor (50) is arranged. Measuring system (10) according to one of the preceding claims, characterized in that the measuring system (10) comprises at least one holding device (90), the holding device (90) for holding the propulsion device (80) and/or the at least a flexible conductor (50), in particular the free end (52) of the propulsion device (80) and/or the at least one flexible conductor (50). Measuring system (10) according to one of the preceding claims, characterized in that the measuring system (10) comprises a winding device (82), the winding device (82) for winding and unwinding the propulsion device (80) and/or the at least one flexible conductor (50) is designed, in particular wherein the winding device (82) is designed for detecting an unwound length of the propulsion device (80) and/or the at least one flexible conductor (50). Measuring system (10) according to one of the preceding claims, characterized in that the measuring system (10) comprises a removal device (92) for removing impurities from the environment of the removal device (92), in particular wherein the removal device (92) at the free end (52 ) the propulsion device (80) and/or the at least one flexible conductor (50) is arranged. Measuring system (10) according to one of the preceding claims, characterized in that the gamma sensor device (20) comprises at least one scintillation probe, in particular the scintillation probe comprising at least one strontium iodide crystal. Measuring method (100) for measuring gamma radiation (G) by a measuring system (10), the measuring method (100) having the following method steps: - Providing (102) the measuring system (10), in particular wherein the measuring system (10) is designed according to one of the preceding claims, - determining (104) at least one position (P) of the gamma sensor device (20) by the position device (30) of the measuring system (10), - measuring (106) of gamma radiation (G) by the gamma sensor device (20) of the measuring system (10). Measurement method (100) according to claim 12 , characterized in that the measuring method (100) further comprises at least one of the following method steps: - Transmission (108) of the data on the at least one position (P) and the gamma radiation (G) to the computer unit (40) of the measuring system (10) , - driving (110) the at least partially flexible driving device (80) and/or the at least one flexible conductor (50), in particular by the moving device (54) of the measuring system (10) and/or the holding device (90) of the measuring system ( 10), - detecting (112) a driven and/or unwound length of the driving device (80), which is flexible at least in sections, and/or the at least one flexible conductor (50) by the winding device (82) of the measuring system (10), - removing (114 ) of contamination in the area around the removal device (92) by the removal device (92) of the measuring system (10). Computer program product, comprising instructions which, when executed by a computer unit (40), cause the computer unit (40) to carry out a measuring method (100) according to one of the preceding ones Claims 12 or 13 to execute.

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