The design of X-band EPR cavity with narrow detection aperture for in vivo fingernail dosimetry after accidental exposure to ionizing radiation.
The design of X-band EPR cavity with narrow detection aperture for in vivo fingernail dosimetry after accidental exposure to ionizing radiation.
复制标题
X波段窄检测孔径EPR腔的设计用于意外暴露于电离辐射后的活体指甲剂量测定
DOI：
10.1038/s41598-021-82462-3
复制
发表时间：
2021-02-08
影响因子：
4.6
通讯作者：
Wu K
中科院分区：
文献类型：
--
作者：
Guo J;Luan X;Tian Y;Ma L;Bi X;Zou J;Dong G;Liu Y;Li Y;Ning J;Wu K
为评估核应急或辐射事故中受照者的辐射剂量，设计了一种用于在体指甲EPR剂量测量的新型X波段EPR谐振腔，并自制了一台用于在体指甲EPR剂量测量的EPR谱仪。谐振腔的微波谐振模式为矩形TE101，在腔壁上高灵敏度处开有一个窄的指甲检测孔。DPPH点样品和指甲样品基于活体指甲EPR光谱仪测量。DPPH点样品的测量验证了EPR谱仪的初步功能适用性，并说明了微波功率和调制响应特性。对经γ射线照射后的指甲进行测量，获取辐射诱导信号。结果表明，该腔体和在体EPR剂量计能够探测到受照指甲中的辐射诱导信号，初步验证了该仪器的基本功能及其在辐射事故后应急剂量估算中的应用潜力。
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.
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影响因子：
2.2
作者：
Salikhov, I;Hirata, H;Swartz, HM
通讯作者：
Swartz, HM
影响因子：
2.2
作者：
Swarts SG;Sidabras JW;Grinberg O;Tipikin DS;Kmiec MM;Petryakov SV;Schreiber W;Wood VA;Williams BB;Flood AB;Swartz HM
通讯作者：
Swartz HM
影响因子：
2.2
作者：
BRADY, JM;AARESTAD, NO;SWARTZ, HM
通讯作者：
SWARTZ, HM
影响因子：
3.7
作者：
Junwang G;Qingquan Y;Jianbo C;Lei M;Guofu D;Guoshan Y;Ke W
通讯作者：
Ke W
影响因子：
1.7
作者：
Reyes, R. A.;Romanyukha, Alexander;Benevides, L. A.
通讯作者：
Benevides, L. A.