High-precision efficiency calibration of a high-purity co-axial germanium detector
Language
en
Article de revue
This item was published in
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2015, vol. 776, p. 34-44
Elsevier
English Abstract
A high-purity co-axial germanium detector has been calibrated in efficiency to a precision of about 0.15% over a wide energy range. High-precision scans of the detector crystal and gamma-ray source measurements have been ...Read more >
A high-purity co-axial germanium detector has been calibrated in efficiency to a precision of about 0.15% over a wide energy range. High-precision scans of the detector crystal and gamma-ray source measurements have been compared to Monte-Carlo simulations to adjust the dimensions of a detector model. For this purpose, standard calibration sources and short-lived on-line sources have been used. The resulting efficiency calibration reaches the precision needed e.g. for branching ratio measurements of super-allowed beta decays for tests of the weak-interaction standard model.Read less <
English Keywords
Super-allowed beta transitions
Monte-Carlosimulations
Gamma-ray spectroscopy
Germanium detector
Origin
Hal imported