Journal article

Publication year: 1999

Pages: 49-51

Journal: Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

Volume number: 423

Issue number: 1

ISSN: 0168-9002

DOI Link: https://doi.org/10.1016/S0168-9002(98)01177-2

Publisher: Elsevier

Abstract: 
An intrinsic Ge (LEPS-type) detector was used to measure the energy of the 166 keV gamma ray in Ce-139 decay against the gamma rays of Ta-182. Reference values for Ta-182 were taken from the recent list of gamma ray energy standards as updated by Helmer and van der Leun. Based on 18 runs taken under a variety of conditions, the average value for this La-139 gamma ray is 165.8575(11) keV. This is mid-way between two earlier results, but about six times as accurate. Some advantages of 139Ce as both a gamma ray and internal-conversion electron calibration source are pointed out. (C) 1999 Elsevier Science B.V. All rights reserved.

Harvard Citation style: Alburger, D. and Wesselborg, C. (1999) Precision energy measurement of the 166 keV γ ray in ¹³⁹Ce decay, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 423(1), pp. 49-51. https://doi.org/10.1016/S0168-9002(98)01177-2

APA Citation style: Alburger, D., & Wesselborg, C. (1999). Precision energy measurement of the 166 keV γ ray in ¹³⁹Ce decay. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 423(1), 49-51. https://doi.org/10.1016/S0168-9002(98)01177-2