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- Title
CHARACTERISATION OF THE PTB THERMAL NEUTRON CALIBRATION FACILITY WITH THE BONNER SPHERE SPECTROMETER NEMUS.
- Authors
Zbořil, M; Luszik-Bhadra, M; Radeck, D; Reginatto, M; Zimbal, A
- Abstract
The neutron field of the PTB Thermal Neutron Calibration Facility was characterised with the help of the Bonner sphere spectrometer of PTB, NEutron MUltisphere Spectrometer (NEMUS). For the analysis of the Bonner sphere data an analytical model of the neutron energy distribution was used. The unfolding of neutron spectra was performed via the method of Bayesian parameter estimation. Comparison of the results of thermal neutron fluence and thermal ambient dose equivalent with the results of the reference method of gold activation showed a very good agreement. For fast neutrons the results obtained with NEMUS will serve as reference values for this facility. The facility is ready for use as a thermal neutron reference field for calibrations of neutron measuring devices.
- Subjects
THERMAL neutrons; SPECTROMETER calibration; NEUTRON transport theory; NEUTRON temperature; NUCLEAR energy; NUCLEAR physics experiments
- Publication
Radiation Protection Dosimetry, 2018, Vol 180, Issue 1-4, p98
- ISSN
0144-8420
- Publication type
Article
- DOI
10.1093/rpd/ncx242