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Open Access Green as soon as Postprint is submitted to ZB.
Photon contributions from the 252Cf and 241Am-Be neutron sources at the PSI Calibration Laboratory.
Radiat. Meas. 47, 567-570 (2012)
At the accredited PSI Calibration Laboratory neutron reference fields traceable to the national standards of the Physikalisch-Technische Bundesanstalt (PTB) in Germany are available for the calibration of ambient and personal dose equivalent (rate) meters and passive dosimeters. The photon contribution to the ambient dose equivalent in the neutron fields of the Cf-252 and Am-241-Be sources was measured using various photon dose rate meters and active and passive dosimeters. Measuring photons from a neutron source usually involves considerable uncertainties due to the presence of neutron induced photons in the room, due to a non-zero neutron sensitivity of the photon detector, and last but not least due to the energy response of the photon detectors. Therefore eight independent detectors and methods were used to obtain a reliable estimate for the photon contribution of the two sources as an average of the individual methods. For the Am-241-Be source a photon contribution of approximately 4.9% was determined and for the Cf-252 source a contribution of 3.6%.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
Neutron ; Radionuclide Sources ; Characterization ; Photon Contribution ; Mixed Fields; FIELDS
ISSN (print) / ISBN
1350-4487
e-ISSN
1879-0925
Journal
Radiation Measurements
Quellenangaben
Volume: 47,
Issue: 8,
Pages: 567-570
Publisher
Elsevier
Non-patent literature
Publications
Reviewing status
Peer reviewed