X-band TE101 rectangular aperture cavity for in vivo EPR tooth dosimetry after radiation emergency

Junwang Guo; Lei Ma; Xiaoguang Bi; Guofu Dong; Yonggang Li; Jing Ning; Ke Wu

doi:10.1016/j.apradiso.2021.109958

X-band TE101 rectangular aperture cavity for in vivo EPR tooth dosimetry after radiation emergency

Appl Radiat Isot. 2021 Dec:178:109958. doi: 10.1016/j.apradiso.2021.109958. Epub 2021 Sep 21.

Authors

Junwang Guo¹, Lei Ma¹, Xiaoguang Bi¹, Guofu Dong¹, Yonggang Li¹, Jing Ning¹, Ke Wu²

Affiliations

¹ Beijing Institute of Radiation Medicine, No.27 Tai-Ping Road, Beijing, 100850, China; Beijing Key Laboratory of Radiation Biology No. BZ0325, No.27 Tai-Ping Road, Beijing, 100850, China.
² Beijing Institute of Radiation Medicine, No.27 Tai-Ping Road, Beijing, 100850, China; Beijing Key Laboratory of Radiation Biology No. BZ0325, No.27 Tai-Ping Road, Beijing, 100850, China. Electronic address: 421754874@qq.com.

PMID: 34598040
DOI: 10.1016/j.apradiso.2021.109958

Abstract

The TE101 mode rectangle EPR cavity was newly developed to achieve X-band in vivo EPR tooth dosimetry for the rescue of nuclear emergency. An aperture for sample detection was opened on the cavity's surface. Its characteristics were evaluated by measuring DPPH and intact human incisor samples. Remarkable radiation induced signal from EPR spectrum of 1Gy-8Gy irradiated teeth was observed. In vivo measurements of rat was performed to verify its application for in vivo tooth dosimetry.

Keywords: EPR cavity; EPR dosimetry; In vivo; TE101 mode; X-band.

MeSH terms

Animals
Electron Spin Resonance Spectroscopy / instrumentation
Electron Spin Resonance Spectroscopy / methods*
Equipment Design
Female
Humans
Radiometry / instrumentation
Radiometry / methods*
Rats
Rats, Sprague-Dawley
Tooth / diagnostic imaging*