Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2013, Vol. 24 ›› Issue (2): 020403 doi: 10.13538/j.1001-8042/nst.2013.02.005


Implicit FWHM calibration for gamma-ray spectra

WANG Yiming  WEI Yixiang*   

  1. Key Laboratory of Particle & Radiation Imaging (Tsinghua University), Ministry of Education, Department of Engineering Physics, Tsinghua University, Beijing 100084, China
  • Received:2012-06-25
  • Contact: WEI Yixiang
  • Supported by:

    Supported by National Nature Science Foundation of China (No. 11175101)

WANG Yiming, WEI Yixiang. Implicit FWHM calibration for gamma-ray spectra.Nuclear Science and Techniques, 2013, 24(2): 020403     doi: 10.13538/j.1001-8042/nst.2013.02.005


FWHM calibration is one of the essential procedures in gamma-ray spectra analysis. Traditional method is time consumption and poor flexibility because of extra measurement on calibration source. This paper introduces an implicit calibration method based on symmetric zero-area conversion. The single peaks can be differentiated from doublets. Meanwhile, the extracted FWHM values can be applied in the fitting process. Various forms of calibration equations are introduced and compared with practical spectrum data under this method.

Key words: Gamma-ray spectrum , FWHM , Implicit calibration , Symmetric zero-area conversion