| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10715966 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2009 | 6 Pages |
Abstract
A total absorption detector, which is composed of a through-hole type HPGe detector coupled with a surrounding annular anti-Compton BGO detector, has been developed for βâ-decay energy (Qβ) measurements of nuclei far off from the β-stability line. This detector can measure radiations with an almost 4Ï solid angle by putting radioactive sources in the middle of the HPGe detector and also can suppress the scattered photons with the anti-Compton BGO scintillation detector. The systematic uncertainty was determined to be 30 keV by measuring 19 nuclei having Qβs between 3 and 8 MeV by means of conventional square-root plot analysis. The Qβ's of mass-separated fission products 147La and 148La were successfully determined to be 5366(40) and 7732(70) keV, respectively.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
Hiroaki Hayashi, Michihiro Shibata, Itaru Miyazaki, Osamu Suematsu, Yasuaki Kojima, Kiyoshi Kawade, Akihiro Taniguchi,