Radiation Protection Dosimetry Advance Access originally published online on May 21, 2007
Radiation Protection Dosimetry 2007 126(1-4):151-154; doi:10.1093/rpd/ncm032
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Energy and direction distribution of neutrons in workplace fields: implication of the results from the EVIDOS project for the set-up of simulated workplace fields
1 Physikalisch-Technische Bundesanstalt, Bundesallee 100, D-38116 Braunschweig, Germany
2 Institut de Radioprotection et de Sûreté Nucléaire, BP 3, 13115 Saint-Paul-lez-Durance, France
* Corresponding author: marlies.luszik-bhadra{at}ptb.de
Workplace neutron spectra from nuclear facilities obtained within the European project EVIDOS are compared with those of the simulated workplace fields CANEL and SIGMA and fields set-up with radionuclide sources at the PTB. Contributions of neutrons to ambient dose equivalent and personal dose equivalent are given in three energy intervals (for thermal, intermediate and fast neutrons) together with the corresponding direction distribution, characterised by three different types of distributions (isotropic, weakly directed and directed). The comparison shows that none of the simulated workplace fields investigated here can model all the characteristics of the fields observed at power reactors.