EP2893373A1 - Dispositif dosimètre à haute énergie - Google Patents

Dispositif dosimètre à haute énergie

Info

Publication number
EP2893373A1
EP2893373A1 EP13745691.9A EP13745691A EP2893373A1 EP 2893373 A1 EP2893373 A1 EP 2893373A1 EP 13745691 A EP13745691 A EP 13745691A EP 2893373 A1 EP2893373 A1 EP 2893373A1
Authority
EP
European Patent Office
Prior art keywords
dosimeter
radiation
detector element
partially
receiving
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP13745691.9A
Other languages
German (de)
English (en)
Inventor
Georg Fehrenbacher
Alexey Sokolov
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GSI Helmholtzzentrum fuer Schwerionenforschung GmbH
Original Assignee
GSI Helmholtzzentrum fuer Schwerionenforschung GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GSI Helmholtzzentrum fuer Schwerionenforschung GmbH filed Critical GSI Helmholtzzentrum fuer Schwerionenforschung GmbH
Publication of EP2893373A1 publication Critical patent/EP2893373A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/02—Dosimeters
    • G01T1/10—Luminescent dosimeters

Definitions

  • the invention relates to a Dosimetervorraum, especially a Ortsdosime- tervorraum, with at least one radiation attenuation device and at least one receiving device for at least one detector element device.
  • a Dosimetervorraum especially a Ortsdosime- tervorraum
  • at least one radiation attenuation device for at least one detector element device.
  • radiation protection areas must be set up to protect persons.
  • Each of these must comply with certain regulations.
  • dosimeters are used.
  • When monitoring persons one usually speaks of personal dosimeters, while in the monitoring of premises usually so-called location ⁇ dosimeter are used.
  • the dosimeter devices are to be used for (legally required) radiation protection purposes, certain specifications must also be observed. In particular, the legal requirements applicable to the respective country must be met by the dosimeter device in question. According to the currently valid regulations in the Federal Republic of Germany, for example, in the presence of X-ray sources of local dosemeters, the so-called depth dose (ambient equivalent dose) H * (10) and the so-called surface dose (directional equivalent dose) ⁇ (0.07) are to be measured. According to the applicable regulations, different measuring accuracies are permissible depending on the expected radiation level, such as a measurement inaccuracy of +/- 40% according to the PTB-A 23.3 requirement.
  • the invention solves this problem.
  • a dosimeter device which has at least one radiation attenuation device and at least one receptacle device for at least one detector element device, with at least one radiation conversion device;
  • the dosimeter device may in particular be a local dosimeter device.
  • the dosimeter device may be used as a dosimeter device for measuring the personal dose (for example, Hp (10)).
  • the dosimeter device may be a dosimeter device which is passively designed (and thus in particular does not require electrical power for operation), as well as integrating (so that the finally obtained measured value is obtained, for example, by removal of a detector element device on a weekly basis or the like and subsequent readout of the detector element device can be determined).
  • the radiation attenuation device may be any device with a radiation-attenuating effect (the underlying physical effects may in principle be arbitrary, in particular they may be scattering effects, particle formation processes, radiation absorption processes and / or the like).
  • the radiation attenuation device can be designed (at least in part) as a radiation scattering device and / or as a scattering body device.
  • they may be scattering bodies, as described, for example, in German Patent DE 10 2007 054 927 B3.
  • Such scattering bodies can be made, for example, from a plastic material or the like.
  • additional filter elements are provided, such as in particular teretti in the form of different thickness running metal plate or metal foils of different metals.
  • Dosimetervoriquesen that, for example in Dosimeterfilmen o- maps having multiple lithium fluoride crystals (or else other photoluminescent and / or thermoluminescent crystals), in different areas platelets such as copper, iron and / or Biel possibly also with different thick (example ⁇ as in the millimeter range) are arranged.
  • platelets such as copper, iron and / or Biel possibly also with different thick (example ⁇ as in the millimeter range) are arranged.
  • the detector areas corresponding to the respective filters are varied to different degrees with different types of incident radiation and / or radiation spectra, so that (with certain limitations) a spectral distribution and / or different types of radiation can be deduced.
  • the problem with such known filter elements is that the filter effect provides only sufficiently meaningful or different measurement results up to certain maximum energies and / or for certain types of radiation.
  • the described filter elements are preferably arranged in the region of a receiving device for at least one detector element device within the dosimeter device.
  • a receiving device may, for example, be a cavity which is adapted, for example, suitably to the shape of the detector element devices to be used. But it is also possible that the cavity is made larger than it is "actually" required for the detector element device used. In particular, in such a case, it is advantageous if at least one receiving device also has at least one holding device.
  • the Dosimeterervorraum detector element device can be locked, for example, and can be secured against accidental falling out.
  • the receiving devices and clamping springs or the like have, so that a "rattling" of the detector element device can be prevented within the corresponding receiving device.
  • the receiving means may comprise means, the unsuccessful bind a ver ⁇ on accidentally incorrect insertion of a detector element means effectively.
  • passive and / or integratively working Detekto ⁇ relement devices use, since these are particularly suitable for Dosi- metrieanorganizen.
  • the detection sensitivity especially in the high-energy range ⁇ , as for example to increase the high-energy range of photons, it is proposed to use a Strahlungsumwand- lung device.
  • a radiation conversion device for example, electromagnetic cascades (electromagnetic shower of electrons, positrons and gamma quanta) can be triggered.
  • metals with a suitable atomic number can be used here. Due to physical laws, a so-called pair formation process takes place in the radiation conversion device, for example when particularly high-energy photon radiation is present, which leads to the formation of an electron and a positron. The resulting particles can in turn induce other types of radiation.
  • the radiation generated in each case usually becomes increasingly low-energy.
  • a dosimeter device can be produced in a simple manner whose detection sensitivity over a very large energy range and / or a very wide range of radiation types, in particular in the high-energy range, especially in the high-energy photon region Sensitivity corresponding to a desired and / or required response with respect to a measured variable having. Additionally or alternatively, it is also possible for a so-called hadronic cascade to be triggered in the radiation conversion device.
  • Such a hadronic cascade can be triggered, for example, by incident, sufficiently high-energy neutrons.
  • these generate a wide variety of particles, which, if appropriate, can also decay further.
  • protons and ⁇ -radiation can arise, which can be detected particularly well in the rule.
  • comparatively simple detector element devices can be used for their detection, which is correspondingly advantageous.
  • neutrons in particular high-energy neutrons (which are often difficult to detect with detectors available in the prior art), can be measured particularly easily.
  • the proposed structure makes it possible, in particular, for the dose (in the sense of a conservative estimate of the effective dose) to also be used for high energies (in particular energies higher than 10 MeV, 20 MeV, 30 MeV, 40 MeV, 50 MeV, 75 MeV, 100 MeV or 200 MeV) can be measured.
  • An advantageous field of application for the proposed dosimeter device is the measurement of pulsed radiation at high-energy accelerators.
  • the design of the dosimeter device can take place in such a way that legal measurement accuracy specifications are met, such as the H * (10) or HD (0.07) standard, for example. Accordingly, a comparatively inexpensive Dosimeterervoriques can be realized with high added benefit.
  • the dosimeter device is designed and set up such that it is suitable for at least one passively and / or at least integrally formed detector element device, in particular for a film device, for a photoluminescent device, for an optically stimulated luminescence device and / or for a thermoluminescent device.
  • passive detector tions are useful, since they are in particular not pointed to a power source ⁇ , so that their reliability can be correspondingly large.
  • Integrative detector element devices are particularly suitable for dosimeter devices since this corresponds to the value to be measured.
  • film devices, photoluminescent devices and thermoluminescent devices have proven to be particularly useful.
  • At least one receiving device for at least one detector element device and / or at least a part of the receiving device for the Detektorele- device is designed and set up / are such that there is an at least partially closed interior device, the detector element devices can then, for example roughly cylindrical and / or coarse ball-like running.
  • the terms cylindrical and spherical can be understood very broad. In particular, for example, triangular, prism-like arrangements (without upper and lower closure) can be regarded as "roughly cylindrical”. Also one Accordingly, a cubic arrangement can be regarded as "roughly spherical".
  • the resulting interior device can then serve to accommodate additional components or, if appropriate, can only be designed as a cavity.
  • a cylinder or a sphere with three (for example, triangle-like prism), four (for example, “above and un ⁇ th open square"), five (e.g., “up and down open pentagonal prism “or” top and bottom closed triangular prism "), six (for example cubes, closed cuboid), seven, eight, nine and / or ten planar elements.
  • An optionally resulting cavity can be used for a wide variety of purposes, such as in particular also for the arrangement of at least one radiation conversion device and / or a further (possibly differently acting) radiation attenuation device.
  • the interior device prefferably be filled with the radiation conversion device or a plurality of radiation conversion devices, for example (essentially).
  • the receiving area (s) for the at least one detector element device can to some extent form the surface of the interior device or of the radiation conversion device (or a part thereof).
  • the proposed design of the dosimeter device can in particular also result in a more accurate measurement accuracy over a comparatively large selected solid angle range.
  • the dosimeter device is embodied in such a way that at least one receptacle device which is at least areally plate-like and / or at least partially plate-like and / or at least partially cylindrical-surface-section-like for receiving at least one areal detector element device. or detector element element formed at least partially in the form of a spherical surface section. device is suitable.
  • the detector element device or detector element element formed at least partially in the form of a spherical surface section. device is suitable.
  • At least one radiation conversion device is arranged directionally, in particular directionally oriented with respect to a detector element device, preferably only on one side to at least one detector element device, particularly preferably in the region of at least one interior device.
  • Such a configuration makes it possible for radiation coming from one direction to strike a first detector element after a radiation attenuation device has passed through, whereas a second detector element is hit by radiation which comprises at least one radiation conversion device (and As a result, it is possible in a simple manner to obtain an often more than adequate spectral measurement of the incident radiation, or else, for example, incident high-energy photon radiation can be registered in the first place
  • a plurality of detector element devices it is nevertheless or still possible to design the dosimeter device in such a way that it has only a comparatively small directionality "as a whole". sensitivity (especially within certain angular ranges) shows. This makes it possible that the proposed dosimeter device can also be used well as a local dosimeter.
  • a further preferred embodiment is obtained when the dosimeter device is designed and arranged such that at least one detector element device is acted upon both by radiation attenuated by at least one radiation attenuation device and by radiation converted by at least one radiation conversion device.
  • the Dosimetervoriques can on the one hand show a particularly advantageous spectral resolution, on the other hand be sensitive over at least a larger solid angle range. Such as far as possible directional independence is as advantageous as possible for Dosimetrie amalgamation.
  • the receiving device (s) for receiving a plurality of detector element devices is / are formed.
  • the dosimeter device may be designed such that it is equipped with, for example, three, four, five, six, seven, eight, nine or ten detector element devices.
  • the largest possible number of detector element devices is often advantageous in terms of measurement, this usually increases the economic outlay, in particular when exchanging and reading out the relevant detector element devices. Accordingly, the most advantageous compromise should be chosen.
  • the dosimeter device is designed and set up such that it is sensitive to radiation, at least in certain solid angle ranges.
  • the solid angle ranges should be as large as possible.
  • the dosimeter device can be designed such that it has an angle range of more than 30 °, 45 °, 60 °, 90 °, 135 °, 180 °, 225 °, 270 °, 315 ° or substantially 360 ° in a first direction having.
  • the measuring range can then advantageously be, for example, plus and / or minus 15 °, 30 °, 45 °, 60 °, 75 ° and / or substantially plus or minus 90 °.
  • Such a dosimeter device can then be used particularly advantageously for dosimetry purposes.
  • At least one receiving device for at least one detector element device is designed as a receiving device for at least one standardized detector card device.
  • a receiving device for at least one standardized detector card device it is usually possible to fall back on objects already present in the case of corresponding radiation protection-monitored devices.
  • standard films for personal dosimeters, standard thermoluminescence cards and / or standard photoluminescence cards can be considered here.
  • a particularly advantageous embodiment of the dosimeter device results when the receiving device has at least one holding device for at least one detector element device and / or the dosimeter device has at least one holding device for at least one radiation conversion device.
  • the holding device may be at least partially embodied integrally with the radiation attenuation device (in particular in one piece and / or in one piece) and / or at least partially made essentially of the same material as the radiation attenuation device. Additionally or alternatively, it is also possible that at least a part of a holding device as a separate derte device and / or made of a separate material (in particular of a different material than the radiation attenuation device) is made.
  • the proposed construction it is possible to realize a particularly long service life of the dosimeter device by making use of structures and / or materials which are particularly suitable for the particular application.
  • a material can be used which, in direct contact with the material of the radiation conversion device, exhibits no negative properties and is, for example, also designed to be particularly stable or abrasion-resistant.
  • a further advantage of the proposed embodiment can be that the radiation attenuation device can also be made particularly advantageous for its area of responsibility, for example, as can be provided with a substantially similar thickness.
  • the holding device In first attempts, it has proven to be advantageous if at least parts of the holding device are made of a plastic material which has a higher strength compared to the (plastic) material of the radiation attenuation device.
  • the holding device can be provided with web-like recesses for receiving the detector element device and / or Strahlungsumwartdlungs pleasing.
  • At least one radiation attenuation device is formed in the dosimeter device in such a way that it has an at least substantially equal attenuation effect at least in sections and / or at least partially an at least substantially uniform thickness.
  • a further embodiment of the dosimeter device results if at least one radiation attenuation device is at least partially and / or at least partially comprises a material with a low mass number, in particular aluminum and / or a plastic material such as in particular PMMA and / or polyethylene and / or paraffin and / or is formed such that at least one radiation conversion device at least partially and / or at least partially a metallic material and / or a material having an increased mass number, in particular iron, titanium and / or vanadium.
  • Such materials have proved to be particularly advantageous in first attempts. In particular, this can result in an advantageous response across different energy ranges.
  • a low mass number is understood in particular to mean a mass number of ⁇ 10, 15, 20 or 25.
  • An increased mass number is understood in particular to mean a mass number of> 30, 35, 40, 45 or 50.
  • mass number the “nuclear charge number” can alternatively be used in the above context (including the explicit numerical examples, the mass numbers usually changing accordingly).
  • the dosimeter device in such a way that the different devices of the dosimeter device are at least partially and / or at least partially shell-shaped. Initial experiments have shown that this results in a comparatively simple construction with extensive "all-round visibility" (ie large covered solid angle range) with simultaneous good response over particularly large energy ranges and / or types of radiation.
  • the Dosimetervoriques ⁇ at least one detector element means.
  • the receiving devices of the dosimeter device are filled at least substantially "completely" with detector element devices.
  • Fig. 1 a first embodiment of a local dosimeter in a plan view from above;
  • FIG. 2 shows the first exemplary embodiment of a local dosimeter shown in FIG. 1 in a schematic, perspective detail view
  • FIG. 3 shows a second exemplary embodiment of a local dosimeter in a schematic plan view from above;
  • Fig. 4 calculation for the response of the second embodiment of a local dosimeter shown in Figure 3, when using iron as the core material.
  • Fig. 5 calculation for the response of the second embodiment of a local dosimeter shown in Figure 3, when using titanium as the core material.
  • FIG. 6 calculation for the response of the second exemplary embodiment of a spatial dosimeter shown in FIG. 3, using vanadium as core material;
  • FIG. 7 shows a third exemplary embodiment of a local dosimeter in a schematic, perspective cross-sectional view
  • FIG. 8 shows the third exemplary embodiment of a local dosimeter shown in FIG. 7 in a schematic, perspective, transparent view.
  • a first conceivable embodiment of a local dosimeter 1 is shown in a schematic plan view from above.
  • the local dosimeter 1 has a first, outer aluminum shell 2 (first part of a radiation attenuation device).
  • first, outer aluminum shell 2 first part of a radiation attenuation device.
  • other materials especially other metals are used here.
  • mixtures of several materials are conceivable.
  • the bulk of the materials should have a comparatively low Mas ⁇ seniere and / or atomic number.
  • a further scattering body 3 is arranged, which is made in the present embodiment of a plastic material, more precisely of PMMA.
  • the aluminum shell 2 is designed as a cylinder wall with a certain thickness, present with a thickness of 1 mm. Although this is not shown in Fig. 1, it is of course also possible that "top” and “bottom” in each case a lid made of aluminum is provided. At least on one side of the lid should be made removable. This can be realized for example by a screw thread or the like.
  • the scattering body 3 located inside the aluminum shell 2 has a substantially cylindrical shape. Again, top and bottom cover elements can be used, which are performed, for example, disc-like.
  • the scattering body 3 has a substantially triangular prismatic recess 4. Within the triangular "base recess", three additional trough-like regions 5 are provided. The trough-like regions 5 are used to hold known dosimetry cards (see FIG. 2), such as, for example, commercially available thermoluminescent cards 6.
  • a total of three trough-like regions 5 are arranged in the form of a triangular prism, wherein a thermoluminescent card 6 is arranged in each of the trough-like regions 5.
  • a core 7, in this case made of an iron material is already inserted.
  • the core 7 has a likewise triangular, prism-like shape.
  • material for the core 7 such as in particular titanium and / or vanadium.
  • mixtures of different materials, in particular alloys of different metals, are conceivable.
  • a multi-part structure of the core 7 is conceivable, although in the present embodiment illustrated a one-piece core 7 is used.
  • thermoluminescent cards 6 The geometrical arrangement of the spatial dosimeter shown in FIG. 1 becomes even clearer from the perspective partial view selected in FIG.
  • the dimensions of the diffuser body 3 are schematically indicated by a dashed line at the top and bottom in FIG. 2.
  • the aluminum shell 2 is not shown for reasons of clarity.
  • the prismatic arrangement of the three individual thermoluminescent cards 6 around the triangular, prismatic core 7 becomes particularly clear.
  • the construction of the (commercially available) thermoluminescent cards 6 is also clear from FIG. 2: these have a card part 8 which has a total of four holes 9 each provided with windows. Inside the holes 9, a lithium fluoride crystal 10 can be seen in each case. Furthermore, a chamfer 11 can be seen on the card part 8.
  • thermoluminescent cards 6 can only be used in the correct position, a triangular projection 12 is provided in each case in the region of the trough-like regions 5.
  • This triangular projection 12 results from the fact that the trough-like region 5 is not milled out of the scattering body 3 "completely cuboidally".
  • a filter element 13 is arranged adjacent to the trough-like regions 5, partly in the region of the lithium fluoride crystals 10 (see FIG. 1).
  • ⁇ it is, for example, aluminum layers, lead layers or the like. These layers can be realized for example as a foil or as a sheet. These cause a corresponding filtering of the incident radiation.
  • the mode of operation of the illustrated location dosimeter 1 is to be described on the basis of a high-energy photon (for example, 100 MeV) incident along the particle track 14 (see FIG. 1).
  • the high-energy photon is not registered in the first thermo-luminescent card 6a because it has too high an energy to be registered by a lithium fluoride crystal 10.
  • the initial scattering by the aluminum shell 2 and the diffuser 3 does not change this.
  • the particle track 14 strikes the core 7 after penetrating the first thermoluminescent card 6a.
  • the high-energy photon triggers a pairing process. So there is an electron and a positron.
  • the particles thus formed continue to interact with the material of the nucleus 7.
  • thermoluminescent card 6b On the opposite side of the particle track 14, this is generally not true. Because by the scattering processes also an angular deflection takes place, so that, if necessary, in the other thermoluminescent cards 6a, 6c, a certain energy is registered.
  • a low-energy photon for example 1 MeV
  • FIG. 3 shows a modified design of a local dosimeter 15. Chosen is a top view from above.
  • the individual parts of the Ortsdosimeters 15 have a cylindrical or a cylinder jacket-like shape. Analogously to the spatial dosimeter 1 shown in FIG. 1, an aluminum shell 2, a scattering body 3, a presently cylindrically formed, trough-like region 5 with two semicircular thermoluminescent cards 16 arranged therein and finally a cylindrical core 7 are provided from outside to inside. Due to the cylinder-like symmetry, the spatial dosimeter 15 shown in FIG. 3 has a largely directional independence.
  • Figs. 4 to 6 numerically obtained results of simulation calculations (simulation results) are shown for the spatial dosimeter 15 shown in FIG. In each case along the abscissa the photon energy 17 and along the ordinate the relative dose 18 is indicated.
  • the individual points 19 shown in graphs 4 to 6 correspond to the numerically obtained values for the spatial dosimeter.
  • the individual respectively plotted curves 20, 21, 22 and 23 correspond to the relative dose readings of the dosimeter and the course of the measurands H * (10) 23 and H ma de 20.
  • the effective doses in an AP geometry 21 and in a Iso-geometry 22 drawn.
  • the core 7 is made of iron
  • Fig. 5 it is made of titanium and in Fig.
  • FIG. 7 shows a third, particularly preferred exemplary embodiment for a local dosimeter 24, wherein a perspective top view of a lower part 25 of the local dosimeter 24 cut along a horizontal plane is shown (compare also FIG. 8, in which the local dosimeter 24 is shown in a perspective, transparent schematic view).
  • both the scattering body 26 and the core 27 are designed such that scattering body 26 (radiation attenuation device) and core 27 (radiation conversion device) each have a substantially identical thickness (the thickness of scattering body 26 in relation to the core 27 can be selected to be the same or different depending on the requirement).
  • the scattering body 26 is designed as a substantially cylindrical body with a suitable cylinder jacket thickness.
  • the core 27 is assembled in the present case of three individual parts (of course, it is also possible that the core 27 is made in two parts or only one piece).
  • a holding device 28 can be seen from a plastic material.
  • the holding device 28 is designed in three parts and inserted in a form-fitting manner into correspondingly formed recesses 29 of the scattering body 26.
  • the shape of holding device 28 and recesses 29 is chosen such that in the mounted state of the local dosimeter 24 a displacement of the parts against each other is almost impossible.
  • a holding web 30 and in each case two retaining beads 31 can be seen in the holding device 28.
  • the holding web 30 serves to receive and hold the core 27, while the holding beads 31 serve to hold the thermoluminescent cards 6.
  • FIG. 8 shows the composite spatial dosimeter 24 in a schematic, perspective, transparent view.
  • the upper lid 32 and the corresponding area of the diffuser body 26 are each provided with a screw thread, so that the upper lid 32 can be unscrewed or tightened, so that easy access to the thermoluminescent cards 6 is possible.
  • a suspension device 33 can still be seen in FIG. 8, which makes it possible for the local dosimeter 24 to be hung, for example, on a cord.

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Molecular Biology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Measurement Of Radiation (AREA)

Abstract

Dispositif dosimètre environnemental (1, 15, 24) qui comporte un dispositif d'affaiblissement des rayonnements (2, 3, 26) et plusieurs logements (5) pour des éléments détecteurs (6, 16). Ledit dosimètre comporte en outre un dispositif de conversion de rayonnements (7, 27).
EP13745691.9A 2012-09-04 2013-08-08 Dispositif dosimètre à haute énergie Withdrawn EP2893373A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012108174.3A DE102012108174A1 (de) 2012-09-04 2012-09-04 Hochenergiedosimetervorrichtung
PCT/EP2013/066621 WO2014037184A1 (fr) 2012-09-04 2013-08-08 Dispositif dosimètre à haute énergie

Publications (1)

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EP2893373A1 true EP2893373A1 (fr) 2015-07-15

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EP13745691.9A Withdrawn EP2893373A1 (fr) 2012-09-04 2013-08-08 Dispositif dosimètre à haute énergie

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EP (1) EP2893373A1 (fr)
DE (1) DE102012108174A1 (fr)
WO (1) WO2014037184A1 (fr)

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Publication number Priority date Publication date Assignee Title
EP4020018A1 (fr) 2020-12-22 2022-06-29 Deutsches Elektronen-Synchrotron DESY Dosimètre

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WO2004077097A2 (fr) * 2003-02-27 2004-09-10 Jp Laboratories Inc. Dosimetre d'alerte instantane de rayonnement a indication automatique personnel et de zone

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US3789227A (en) * 1973-05-18 1974-01-29 Atomic Energy Commission Environmental dosimeter of the thermo-luminescent type
DE19730242C1 (de) 1997-07-15 1998-12-24 Gsf Forschungszentrum Umwelt Verfahren zur Ermittlung von Photonenspektren
DE102004020979A1 (de) * 2004-04-22 2005-11-17 GSI Gesellschaft für Schwerionenforschung mbH Dosimeter zur Erfassung von Neutronenstrahlung
US7375334B2 (en) * 2004-08-31 2008-05-20 Battelle Memorial Institute Apparatus and method for OSL-based, remote radiation monitoring and spectrometry
DE102007054927B3 (de) 2007-11-15 2009-07-30 Gsi Helmholtzzentrum Für Schwerionenforschung Gmbh Ortsdosimeter zur Messung der Umgebungsäquivalentdosis von Photonenstrahlung und Verfahren zum Auslesen
DE102008050731A1 (de) * 2008-10-08 2010-04-15 Bundesrepublik Deutschland, vertr.d.d. Bundesministerium für Wirtschaft und Technologie, d.vertr.d.d. Präsidenten der Physikalisch-Technischen Bundesanstalt Neutronendosimeter
EP2857863A3 (fr) * 2010-04-09 2015-07-15 Landauer, Inc. Système de puissance pour lecteur de dosimètres

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US4492872A (en) * 1981-05-22 1985-01-08 Kernforschungszentrum Karlsruhe Gmbh Albedo dosimeter encapsulation
WO2004077097A2 (fr) * 2003-02-27 2004-09-10 Jp Laboratories Inc. Dosimetre d'alerte instantane de rayonnement a indication automatique personnel et de zone

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WO2014037184A1 (fr) 2014-03-13

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