Abstract: The Multi-sensor Airborne Radiation Survey (MARS) detector is a 14 crystal array of high purity germanium (HPGe) detectors housed in a single cryostat. The array was used to measure the astrophysical S-factor for the 14N(p,?)15O* reaction for several transition energies at an effective center of mass energy of 163 keV. Owing to the segmented nature of the MARS detector, the effect of gamma-ray summing was greatly reduced in comparison to past experiments which utilized large, single crystal detectors. The new S-factor values agree within the uncertainties with the past measurements. Details of the analysis and detector performance will be presented.
Revised: October 30, 2015 |
Published: May 21, 2015
Citation
Howard C., S. Daigle, M. Buckner, L.E. Erikson, R.C. Runkle, S.C. Stave, and A. Champagne, et al. 2015.Performance of A Compact Multi-crystal High-purity Germanium Detector Array for Measuring Coincident Gamma-ray Emissions.Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment 783.PNNL-SA-98562.doi:10.1016/j.nima.2015.02.022