Open Access
ND 2007
Article Number 156
Number of page(s) 4
Section Neutron cross section measurements
Published online 17 June 2008
International Conference on Nuclear Data for Science and Technology 2007
DOI: 10.1051/ndata:07400

Performance of a data acquisition system for a large germanium detector array

A. Kimura1, M. Koizumi1, Y. Toh1, J. Goto2 and M. Oshima1

1  Japan Atomic Energy Agency, 2-4 Shirakata-Shirane, Tokai-mura, Ibaraki-ken, Japan
2  Niigata University, 1-757 Asahimachi-dori, Niigata-shi, Niigata-ken, Japan

Published online: 21 May 2008

We have evaluated the performance of our new data acquisition system (DAQ), which utilizes digital signal processing techniques and was developed for a 4π Ge spectrometer. The total energy resolution of this system was 2.5 keV in FWHM for 1.33-MeV gamma rays and 16.4 keV in FWHM for 10.83-MeV prompt gamma rays. The time resolution of timing signals, which are used for the measurements of coincident gamma rays, was 120 ns in FWHM. Those values fulfilled our requirements for the DAQ. A method of dead time correction with this system was also developed.

© CEA 2008