ABSTRACT The Pacific Northwest National Laboratory is finalizing construction of a 14-crystal intrinsic germanium (HPGe) array designed for high detection efficiency, ultra-low-background performance, and sensitive gamma gamma coincidence detection. Initial development of a custom software suite capable of automating many of the tasks required to accurately analyze coincident signals within close-geometry detector arrays will also be completed this year. The analysis capability is required to enable rapid interpretation of data collected with the low-background (HPGe) array. The status of final construction of the 2nd cryostat and the complete system will be discussed, as well as measurement results from independent operation of the 1st cryostat. Status of the CASCADES analysis development, including cross-talk correction and new techniques for efficiency calibration, are also presented.
Revised: April 2, 2020 |
Published: October 22, 2012
Citation
Keillor M.E., C.E. Aalseth, A.R. Day, L.E. Erikson, B.D. Glasgow, E.W. Hoppe, and T.W. Hossbach, et al. 2012.A Germanium Array for Sample Measurements: Recent Results and New Analysis Methods. In 2012 Monitoring Research Review: Ground-Based Nuclear Explosion Monitoring Technologies, September 18-20, 2012, Albuquerque, NM, II, 635-642. Washington D.C.:National Nuclear Security Administration.PNNL-SA-89692.