Journal of Radiation Research and Radiation Proces ›› 2014, Vol. 32 ›› Issue (4): 40501-040501.doi: 10.11889/j.1000-3436.2004.rrj.32.040501

• RADIATION DOSIMETRY • Previous Articles     Next Articles

Study on dosimetric properties of fingernail electron paramagnetic resonance spectrum signals

WANG Liang  ZHANG Haiying  ZHANG Wenyi  CUI Songye  LIU Zhongchao  JIAO Ling   

  1. (Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College,
    Tianjin 300192, China)
  • Received:2014-04-15 Revised:2014-04-24 Online:2014-08-20 Published:2014-06-06

Abstract:

Twenty healthy adult fingernails were collected, water rinsed, and irradiated with 137Cs γ-rays. EPR spectra were measured before and after exposure. The results show that the radiation-induced signal (RIS) in fingernails was relatively stable after the 10th day, and the background signal(BS) of the cut fingernail was gradually increased within 68 d; when fingernails were irradiated less than 15 Gy dose, RIS signal intensity increased with the dose in the first 8 d. The influence of intrinsic signals must be considered in dose reconstruction. Fingernail EPR method can be used for rapid screening of irradiated population after nuclear accidents.

Key words: Electron paramagnetic resonance (EPR), Nails, Stability, Dosimetric properties

CLC Number: 

  • TL72