https://doi.org/10.1051/epjconf/201715301007
Pulsed neutron fields measurements around a synchrotron storage ring
1 Politecnico di Milano, Department of Energy, Via Lambruschini 4, 20156 Milan, Italy
2 Else Nuclear srl, Via Tito Vignoli 44, 20146 Milan, Italy
3 Department of Physics and Astronomy, Institute for Storage Ring Facilities, 8000 Aarhus, Denmark
4 National Institute for Radiation Protection, 2300 Copenhagen, Denmark
5 eScience group, Niels Bohr Institute, University of Copenhagen, Denmark
* Corresponding author: marco.caresana@polimi.it
Published online: 25 September 2017
A measurement campaign was performed for characterizing the neutron ambient dose equivalent, H*(10), in selected positions at ISA, Aarhus, Denmark, around the ASTRID and ASTRID2 storage rings. The neutron stray radiation field is characterized here by very intense radiation bursts with a low repetition rate, which result in a comparatively low average H*(10) rate. As a consequence, devices specifically conceived for operating in pulsed neutron fields must be employed for efficiently measuring in this radiation environment, in order to avoid severe underestimations of the H*(10) rate. The measurements were performed with the ELSE NUCLEAR LUPIN 5401 BF3-NP rem counter, a detector characterized by an innovative working principle that is not affected by dead time losses. This allowed characterizing both the H*(10) and the time structure of the radiation field in the pre-selected positions.
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
