Resolution, efficiency and stability of HPGe detector operating in a magnetic field at various gamma-ray energies
2008 (English)In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, ISSN 0168-9002, Vol. 592, no 3, 486-492 p.Article in journal (Refereed) Published
The use of High Purity Germanium detectors (HPGe) has been planned in some future experiments of hadronic physics. The crystals will be located close to large spectrometers where the magnetic fringing field will not be negligible and their performances might change. Moreover high precision is required in these experiments. The contribution of magnetic field presence and long term measurements is unique. In this paper the results of systematic measurements of the resolution, stability and efficiency of a crystal operating inside a magnetic field of 0.8 T, using radioactive sources in the energy range from 0.08 to 1.33 MeV, are reported. The measurements have been repeated during several months in order to test if any permanent damage occurred. The resolution at 1.117 and 1.332 MeV gamma-rays from a Co-60 source has been measured at different magnetic fields in the range of 0-0.8 T and the results are compared with the previous data.
Place, publisher, year, edition, pages
2008. Vol. 592, no 3, 486-492 p.
HPGe detectors, hypernuclear gamma-ray spectroscopy, magnetic field
IdentifiersURN: urn:nbn:se:kth:diva-34274DOI: 10.1016/j.nima.2008.04.017ISI: 000258252500042ScopusID: 2-s2.0-46649118047OAI: oai:DiVA.org:kth-34274DiVA: diva2:420224
QC 201105312011-05-312011-05-312011-05-31Bibliographically approved