Calibration and measurement of X-ray personal dose equivalent with a Hp(10) ionization chamber

The value of the personal dose equivalent at a 10 mm depth is to characterize the energy deposition of strong penetrating radiation in the human body and is derived by measurement of air kerma and application of conversion coefficients from the ISO report. However, the conversion coefficients depend...

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Autores principales:	Xu Yang, Zhao Rui
Formato:	article
Lenguaje:	EN
Publicado:	VINCA Institute of Nuclear Sciences 2021
Materias:	x-ray personal dose equivalent hp(10) ionization chamber correction factors Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
Acceso en línea:	https://doaj.org/article/fd871ebf849e4fe1b3a7245e462c58af
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spelling	oai:doaj.org-article:fd871ebf849e4fe1b3a7245e462c58af2021-11-22T11:03:07ZCalibration and measurement of X-ray personal dose equivalent with a Hp(10) ionization chamber1451-39941452-818510.2298/NTRP210304019Xhttps://doaj.org/article/fd871ebf849e4fe1b3a7245e462c58af2021-01-01T00:00:00Zhttp://www.doiserbia.nb.rs/img/doi/1451-3994/2021/1451-39942100019X.pdfhttps://doaj.org/toc/1451-3994https://doaj.org/toc/1452-8185The value of the personal dose equivalent at a 10 mm depth is to characterize the energy deposition of strong penetrating radiation in the human body and is derived by measurement of air kerma and application of conversion coefficients from the ISO report. However, the conversion coefficients depend strongly on the photon energy and angles of incidence for low-energy photons. In order to overcome the problem that the conversion coefficient of low energy rays changes greatly due to the small change of energy, a secondary standard ionization chamber was used to measure the personal dose equivalent directly. A matched reference field was established with 20-250 kV X-rays and correction factors with the Hp (10) chamber were calculated under these radiation qualities with different angles of incidence. The results showed that the differences were almost 22.7 % of correction factors for the low energy photons at angles of incidence 0°. With the conversion coefficient recommended in ISO 4037-3-2019, the performance of the chamber response with respect to Hp (10) in the energy range from 33 keV to 208 keV was within about 10 %, and in the energy range from 12 keV to 208 keV and for angles of incidence between 0° and 75° was within about ±19 %.Xu YangZhao RuiVINCA Institute of Nuclear Sciencesarticlex-raypersonal dose equivalenthp(10) ionization chambercorrection factorsNuclear and particle physics. Atomic energy. RadioactivityQC770-798ENNuclear Technology and Radiation Protection, Vol 36, Iss 2, Pp 174-181 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	x-ray personal dose equivalent hp(10) ionization chamber correction factors Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
spellingShingle	x-ray personal dose equivalent hp(10) ionization chamber correction factors Nuclear and particle physics. Atomic energy. Radioactivity QC770-798 Xu Yang Zhao Rui Calibration and measurement of X-ray personal dose equivalent with a Hp(10) ionization chamber
description	The value of the personal dose equivalent at a 10 mm depth is to characterize the energy deposition of strong penetrating radiation in the human body and is derived by measurement of air kerma and application of conversion coefficients from the ISO report. However, the conversion coefficients depend strongly on the photon energy and angles of incidence for low-energy photons. In order to overcome the problem that the conversion coefficient of low energy rays changes greatly due to the small change of energy, a secondary standard ionization chamber was used to measure the personal dose equivalent directly. A matched reference field was established with 20-250 kV X-rays and correction factors with the Hp (10) chamber were calculated under these radiation qualities with different angles of incidence. The results showed that the differences were almost 22.7 % of correction factors for the low energy photons at angles of incidence 0°. With the conversion coefficient recommended in ISO 4037-3-2019, the performance of the chamber response with respect to Hp (10) in the energy range from 33 keV to 208 keV was within about 10 %, and in the energy range from 12 keV to 208 keV and for angles of incidence between 0° and 75° was within about ±19 %.
format	article
author	Xu Yang Zhao Rui
author_facet	Xu Yang Zhao Rui
author_sort	Xu Yang
title	Calibration and measurement of X-ray personal dose equivalent with a Hp(10) ionization chamber
title_short	Calibration and measurement of X-ray personal dose equivalent with a Hp(10) ionization chamber
title_full	Calibration and measurement of X-ray personal dose equivalent with a Hp(10) ionization chamber
title_fullStr	Calibration and measurement of X-ray personal dose equivalent with a Hp(10) ionization chamber
title_full_unstemmed	Calibration and measurement of X-ray personal dose equivalent with a Hp(10) ionization chamber
title_sort	calibration and measurement of x-ray personal dose equivalent with a hp(10) ionization chamber
publisher	VINCA Institute of Nuclear Sciences
publishDate	2021
url	https://doaj.org/article/fd871ebf849e4fe1b3a7245e462c58af
work_keys_str_mv	AT xuyang calibrationandmeasurementofxraypersonaldoseequivalentwithahp10ionizationchamber AT zhaorui calibrationandmeasurementofxraypersonaldoseequivalentwithahp10ionizationchamber
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Calibration and measurement of X-ray personal dose equivalent with a Hp(10) ionization chamber

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