The design of X-band EPR cavity with narrow detection aperture for in vivo fingernail dosimetry after accidental exposure to ionizing radiation

Abstract For the purpose of assessing the radiation dose of the victims involved in the nuclear emergency or radiation accident, a new type of X-band EPR resonant cavity for in vivo fingernail EPR dosimetry was designed and a homemade EPR spectrometer for in vivo fingernail detection was constructed...

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Autores principales:	Junwang Guo, Xiaoxiao Luan, Ye Tian, Lei Ma, Xiaoguang Bi, Jierui Zou, Guofu Dong, Ye Liu, Yonggang Li, Jing Ning, Ke Wu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/f5c1ffd1009f4f47b7c5a16afdb9bc3e
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spelling	oai:doaj.org-article:f5c1ffd1009f4f47b7c5a16afdb9bc3e2021-12-02T14:11:28ZThe design of X-band EPR cavity with narrow detection aperture for in vivo fingernail dosimetry after accidental exposure to ionizing radiation10.1038/s41598-021-82462-32045-2322https://doaj.org/article/f5c1ffd1009f4f47b7c5a16afdb9bc3e2021-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-82462-3https://doaj.org/toc/2045-2322Abstract For the purpose of assessing the radiation dose of the victims involved in the nuclear emergency or radiation accident, a new type of X-band EPR resonant cavity for in vivo fingernail EPR dosimetry was designed and a homemade EPR spectrometer for in vivo fingernail detection was constructed. The microwave resonant mode of the cavity was rectangular TE101, and there was a narrow aperture for fingernail detection opened on the cavity’s wall at the position of high detection sensitivity. The DPPH dot sample and the fingernail samples were measured based on the in vivo fingernail EPR spectrometer. The measurements of the DPPH dot sample verified the preliminary functional applicable of the EPR spectrometer and illustrated the microwave power and modulation response features. The fingernails after irradiation by gamma-ray were measured and the radiation-induced signal was acquired. The results indicated that the cavity and the in vivo EPR dosimeter instrument was able to detect the radiation-induced signal in irradiated fingernail, and preliminarily verified the basic function of the instrument and its potential for emergency dose estimate after a radiation accident.Junwang GuoXiaoxiao LuanYe TianLei MaXiaoguang BiJierui ZouGuofu DongYe LiuYonggang LiJing NingKe WuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Junwang Guo Xiaoxiao Luan Ye Tian Lei Ma Xiaoguang Bi Jierui Zou Guofu Dong Ye Liu Yonggang Li Jing Ning Ke Wu The design of X-band EPR cavity with narrow detection aperture for in vivo fingernail dosimetry after accidental exposure to ionizing radiation
description	Abstract For the purpose of assessing the radiation dose of the victims involved in the nuclear emergency or radiation accident, a new type of X-band EPR resonant cavity for in vivo fingernail EPR dosimetry was designed and a homemade EPR spectrometer for in vivo fingernail detection was constructed. The microwave resonant mode of the cavity was rectangular TE101, and there was a narrow aperture for fingernail detection opened on the cavity’s wall at the position of high detection sensitivity. The DPPH dot sample and the fingernail samples were measured based on the in vivo fingernail EPR spectrometer. The measurements of the DPPH dot sample verified the preliminary functional applicable of the EPR spectrometer and illustrated the microwave power and modulation response features. The fingernails after irradiation by gamma-ray were measured and the radiation-induced signal was acquired. The results indicated that the cavity and the in vivo EPR dosimeter instrument was able to detect the radiation-induced signal in irradiated fingernail, and preliminarily verified the basic function of the instrument and its potential for emergency dose estimate after a radiation accident.
format	article
author	Junwang Guo Xiaoxiao Luan Ye Tian Lei Ma Xiaoguang Bi Jierui Zou Guofu Dong Ye Liu Yonggang Li Jing Ning Ke Wu
author_facet	Junwang Guo Xiaoxiao Luan Ye Tian Lei Ma Xiaoguang Bi Jierui Zou Guofu Dong Ye Liu Yonggang Li Jing Ning Ke Wu
author_sort	Junwang Guo
title	The design of X-band EPR cavity with narrow detection aperture for in vivo fingernail dosimetry after accidental exposure to ionizing radiation
title_short	The design of X-band EPR cavity with narrow detection aperture for in vivo fingernail dosimetry after accidental exposure to ionizing radiation
title_full	The design of X-band EPR cavity with narrow detection aperture for in vivo fingernail dosimetry after accidental exposure to ionizing radiation
title_fullStr	The design of X-band EPR cavity with narrow detection aperture for in vivo fingernail dosimetry after accidental exposure to ionizing radiation
title_full_unstemmed	The design of X-band EPR cavity with narrow detection aperture for in vivo fingernail dosimetry after accidental exposure to ionizing radiation
title_sort	design of x-band epr cavity with narrow detection aperture for in vivo fingernail dosimetry after accidental exposure to ionizing radiation
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/f5c1ffd1009f4f47b7c5a16afdb9bc3e
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The design of X-band EPR cavity with narrow detection aperture for in vivo fingernail dosimetry after accidental exposure to ionizing radiation

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