Personal Dosimetry in Direct Pulsed Photon Fields with the Dosepix Detector
First investigations regarding dosimetric properties of the hybrid, pixelated, photon-counting Dosepix detector in the direct beam of a pulsed photon field (RQR8) for the personal dose equivalent H p (10) are presented. The influence quantities such as pulse duration and dose rate were varied, and t...
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| Veröffentlicht in: | IEEE transactions on nuclear science 2022-12, Vol.69 (12), p.1-1 |
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| creator | Haag, Dennis Schmidt, Sebastian Hufschmidt, Patrick Anton, Gisela Ballabriga, Rafael Behrens, Rolf Campbell, Michael Eberle, Franziska Fuhg, Christian Hupe, Oliver Llopart, Xavier Roth, Jurgen Tlustos, Lukas Wong, Winnie Zutz, Hayo Michel, Thilo |
| description | First investigations regarding dosimetric properties of the hybrid, pixelated, photon-counting Dosepix detector in the direct beam of a pulsed photon field (RQR8) for the personal dose equivalent H p (10) are presented. The influence quantities such as pulse duration and dose rate were varied, and their responses were compared to the legal limits provided in PTB-A 23.2. The variation of pulse duration at a nearly constant dose rate of about 3.7 Sv/h shows a flat response around 1.0 from 3.6 s down to 2 ms. A response close to 1.0 is achieved for dose rates from 0.07 Sv/h to 35 Sv/h for both pixel sizes. Above this dose rate, the large pixels (220 μm edge length) are below the lower limit. The small pixels (55 μm edge length) stay within limits up to 704 Sv/h. The count rate linearity is compared to previous results, confirming the saturating count rate for high dose rates. |
| doi_str_mv | 10.1109/TNS.2022.3222544 |
| format | Article |
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The influence quantities such as pulse duration and dose rate were varied, and their responses were compared to the legal limits provided in PTB-A 23.2. The variation of pulse duration at a nearly constant dose rate of about 3.7 Sv/h shows a flat response around 1.0 from 3.6 s down to 2 ms. A response close to 1.0 is achieved for dose rates from 0.07 Sv/h to 35 Sv/h for both pixel sizes. Above this dose rate, the large pixels (220 μm edge length) are below the lower limit. The small pixels (55 μm edge length) stay within limits up to 704 Sv/h. The count rate linearity is compared to previous results, confirming the saturating count rate for high dose rates.</description><identifier>ISSN: 0018-9499</identifier><identifier>EISSN: 1558-1578</identifier><identifier>DOI: 10.1109/TNS.2022.3222544</identifier><identifier>CODEN: IETNAE</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Active personal dosimetry ; Detectors ; Dosage ; Dosepix ; Dosimeters ; Dosimetry ; Electron tubes ; hybrid pixel detector ; Phantoms ; Photon beams ; Photonics ; Photons ; Pixels ; Pulse duration ; pulsed photon fields ; Silicon ; Uncertainty</subject><ispartof>IEEE transactions on nuclear science, 2022-12, Vol.69 (12), p.1-1</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. 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The influence quantities such as pulse duration and dose rate were varied, and their responses were compared to the legal limits provided in PTB-A 23.2. The variation of pulse duration at a nearly constant dose rate of about 3.7 Sv/h shows a flat response around 1.0 from 3.6 s down to 2 ms. A response close to 1.0 is achieved for dose rates from 0.07 Sv/h to 35 Sv/h for both pixel sizes. Above this dose rate, the large pixels (220 μm edge length) are below the lower limit. The small pixels (55 μm edge length) stay within limits up to 704 Sv/h. 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The influence quantities such as pulse duration and dose rate were varied, and their responses were compared to the legal limits provided in PTB-A 23.2. The variation of pulse duration at a nearly constant dose rate of about 3.7 Sv/h shows a flat response around 1.0 from 3.6 s down to 2 ms. A response close to 1.0 is achieved for dose rates from 0.07 Sv/h to 35 Sv/h for both pixel sizes. Above this dose rate, the large pixels (220 μm edge length) are below the lower limit. The small pixels (55 μm edge length) stay within limits up to 704 Sv/h. 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| subjects | Active personal dosimetry Detectors Dosage Dosepix Dosimeters Dosimetry Electron tubes hybrid pixel detector Phantoms Photon beams Photonics Photons Pixels Pulse duration pulsed photon fields Silicon Uncertainty |
| title | Personal Dosimetry in Direct Pulsed Photon Fields with the Dosepix Detector |
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