RU20590U1 - PEDESTAL PORTAL RADIATION MONITOR - Google Patents

Description

The inventive pedestrian portal radiation monitor relates to the field of environmental protection, and more specifically to the field of registration of radioactive radiation, moreover, it can be most effectively used to register gamma radiation and flux of neutron particles when a pedestrian moves radioactive and / or nuclear materials through it.

Known pedestrian radiation monitor designed to monitor the presence of Y - emitting radioactive and nuclear materials from pedestrians (PM5000 - 06) (1), including a unit for collecting and displaying information (computer), four racks (two racks located opposite each other), of which the γ radiation detection unit (based on an organic plastic scintillator) is located, as well as an intelligent controller (control device), an external alarm unit (remote), and an object presence detector (presence detector I).

The disadvantages of the known pedestrian radiation monitor are: a) limited scope (detection of only γ radiation);

a) increased dimensions (four racks and a remote alarm unit) and reduced mechanical strength;

b) reduced accuracy of registration of γ radiation during continuous movement of a pedestrian;

c) the impossibility of warning about the unauthorized simultaneous movement of two or more pedestrians through it (when moving through the pedestrian radiation monitor close to each other).

A well-known pedestrian and postal-baggage radiation monitor is designed to monitor the presence of u- and neutron-emitting radioactive and nuclear materials from pedestrians, as well as in mail and baggage (PM5000 - 08) (1), including a unit for collecting and displaying information (computer), three racks, in one of which there is a block for detecting gamma radiation (based on an organic plastic scintillator), and in the other two blocks for detecting fluxes of neutron particles (non-proportional counters), as well as an intelligent controller (control device), remote unit (remote control) of the alarm system and an object presence sensor (presence detector).

The disadvantages of the famous pedestrian and postal - baggage radiation monitor are:

a) increased dimensions (three racks and a remote alarm unit) and reduced mechanical strength;

b) reduced accuracy of registration of γ radiation and fluxes of neutron particles during continuous movement of a pedestrian;

c) the impossibility of warning about the unauthorized simultaneous movement of two or more pedestrians through it (when moving through the pedestrian radiation monitor close to each other).

The closest in technical essence to the claimed one is a pedestrian portal radiation monitor (RPS - 01 "Cordon), designed to monitor the presence of u- and neutron-emitting radioactive and nuclear materials from pedestrians (2), including a data collection and display unit (computer), consisting of two racks connected in their upper part by a portal portal, a remote (wall or desktop) controller (control panel), γ-radiation and neutron particle detection units located in the portal racks (based on ve organic plastic scintillators) and an alarm unit and an object presence sensor located on the portal, and the units for detecting γ-radiation and neutron particle fluxes, an alarm unit, an object presence sensor and an information collection and display unit are connected to a remote controller.

The disadvantages of the known pedestrian portal radiation monitor are:

a) its increased dimensions (remote controller);

b) reduced accuracy of registration of γ-radiation and trays of neutron particles during continuous movement of a pedestrian;

c) the impossibility of warning about the unauthorized simultaneous movement of two or more pedestrians through it (when moving through the pedestrian portal radiation monitor close to each other).

The advantages of the inventive pedestrian portal radiation monitor are the reduction of its dimensions, the ability to alert when unauthorized simultaneous movement of two or more pedestrians through it, as well as improving the accuracy of registration of u - radiation and neutron particle flux during continuous movement of a pedestrian through the portal.

These advantages are achieved due to the fact that the claimed pedestrian portal radiation monitor includes a data collection and display unit (computer), consisting of two racks connected at their upper part by a portal, a controller located in the portal overlap, and detection units located in the portal racks - radiation and fluxes of neutron particles (based on organic plastic scintillators), an alarm unit located on the portal, located either on the inside or on one of the frontal sensors on either the front, or on the inner and one of the front, or on the inner and both front surfaces of the portal, the presence sensors of the object, as well as the threshold with a weight sensor located at the bottom of the portal between its racks, and the γ-radiation and flux detection units neutron particles, an alarm unit, object presence sensors, a weight sensor, and an information collection and display unit are connected to the controller.

The inventive pedestrian portal radiation monitor can register y - radiation and neutron particle fluxes both during non-stop movement of a pedestrian through it and when a pedestrian stops between the racks of the portal.

Distinctive features of the claimed pedestrian portal radiation monitor is that

the controller is located in the overlap of the portal;

it contains additional sensors for the presence of the object, and the sensors for the presence of the object are located either on the inside, or on one of the frontal, or on both frontal, or on the inside and one of the frontal, or on the inner and both frontal surfaces of the portal;

it further comprises a threshold with a weight sensor located at the bottom of the portal between its racks;

additional object presence sensors and a weight sensor are connected to the controller.

put in FIG. 1-4.

Figure 1 presents a General view of a pedestrian portal radiation monitor;

Figure 2 presents the pedestrian portal radiation monitor in side view;

Fig. 3 shows a pedestrian portal radiation monitor in a plan view;

Figure 4 presents several options for constructive execution of the threshold;

The inventive pedestrian portal radiation monitor consists of a unit for collecting and displaying information 1, racks 2, floor 3, threshold 4, detection units 5, weight sensor 6, controller 7, presence sensors 8, and alarm unit 9.

The inventive pedestrian portal radiation monitor operates as follows.

When moving between the racks 2 of the pedestrian portal with y - and / or neutron-emitting radioactive and / or nuclear materials, the weight sensor 6, (which can be used as scales), the sensors of the presence of object 8, (which can be used as infrared emitters , radio, optical or acoustic locators), and the detection unit (s) 5 with the simultaneous transmission of the measurement results to the controller 7, (which can be used, for example, a computer system unit with much security). The controller 7 records the results of measurements in its memory and simultaneously transmits the received data to the alarm unit 9, as well as to the information collection and display unit 1 (which, for example, can be used as a personal computer). The alarm unit 9 immediately gives signals about the presence of a pedestrian in the portal and prohibits other pedestrians from moving through the portal, and on the display screen of the information collection and display unit 1, a signal is displayed in a certain sequence or at the same time (depending on requirements) about the presence of a pedestrian in the portal , the time of presence, the schematic relative position (mimic diagram) of the pedestrian and the detection units 5, as well as the detection results.

such a scan is impossible), as well as recording its weight. The scan results in combination with the results of recording the weight of the pedestrian are sent to the controller 7, which, in case of detection of an attempt to unauthorized simultaneous movement through the portal of two or more pedestrians, sends an appropriate warning signal through the alarm unit 9, and this notification is provided for any of the above options for the location of the object’s presence sensors 8 on the portal.

When registering by the detecting unit (s) 5 excesses of background levels of γ - radiation and neutron particle fluxes, the color of the detecting unit 5 (s) from which the corresponding signal was received is changed on the display screen, and graphic and digital measurement results are displayed, and by the controller 7 a command is sent to the alarm unit 9, which gives a corresponding warning sound and / or light signal. Due to the presence of 2 thresholds located in the lower part of the portal between its racks (for which you can use elevations of any shape equipped with a flat surface), the movement of a pedestrian through the portal is slowed down, which improves the accuracy (by increasing the exposure time) of registration of radiation and neutron fluxes particles.

. In addition, during the entire operating time of the pedestrian portal radiation monitor, the controller 7 adjusts the operation of the detection units 5 depending on the total operating time of the plastic scintillators (the degree of their “aging”), as well as on temperature, humidity, and changes in the background levels of gamma radiation and streams of neutron particles.

The inventive pedestrian portal radiation monitor in comparison with a similar pedestrian portal radiation monitor of the closest analogue:

has smaller dimensions due to the location of the controller in the overlap of the portal;

prevents the possibility of unauthorized simultaneous movement of two or more pedestrians through it due to the presence of a weight sensor and additional sensors for the presence of the object in all the above options for their placement on the portal; the speed of continuous 6 movement of the pedestrian through the portal.

Claims (1)

Pedestrian portal radiation monitor, including a data collection and display unit, consisting of two racks connected at their upper part by a portal portal, a controller, γ radiation and neutron particle detection blocks based on organic plastic scintillators and located on the portal block located in the portal racks alarms and a sensor for the presence of an object, with the units for detecting γ-radiation and neutron particle fluxes, an alarm block, a sensor for the presence of an object and an information collection and display unit ermacia are connected to the controller, characterized in that the controller is located in the portal overlap, the pedestrian portal radiation monitor contains additional object presence sensors and a threshold with a weight sensor, and the object presence sensors are located either on the inside, or on one of the front, or both front, or on the inner and one of the frontal, or on the inner and both frontal surfaces of the portal, a threshold with a weight sensor is located at the bottom of the portal between its racks, and additional sensors Alice object and a weight sensor connected to the controller.