Angular distribution of proton leakage from a fusion plasma using ultra low-level gamma-ray spectrometry

R González de Orduña; M Hult; G Bonheure; D Arnold; H Dombrowski; M Laubenstein; J S E Wieslander; T Vidmar; P Vermaercke

doi:10.1016/j.apradiso.2009.11.019

Angular distribution of proton leakage from a fusion plasma using ultra low-level gamma-ray spectrometry

Appl Radiat Isot. 2010 Jul-Aug;68(7-8):1226-30. doi: 10.1016/j.apradiso.2009.11.019. Epub 2009 Nov 13.

Authors

R González de Orduña¹, M Hult, G Bonheure, D Arnold, H Dombrowski, M Laubenstein, J S E Wieslander, T Vidmar, P Vermaercke

Affiliation

¹ European Commission, Joint Research Centre, Institute for Reference Materials and Measurements (IRMM), Geel, Belgium. [email protected]

PMID: 19962906
DOI: 10.1016/j.apradiso.2009.11.019

Abstract

This experiment aimed at studying a technique to measure the leakage of charged particles from a fusion plasma. The activity induced in samples of various materials placed on a special holder inside a Tokamak was measured using ultra low-level gamma-ray spectrometry (ULGS) performed in three underground laboratories. In total, 27 radionuclides were detected in this experiment. Seven of these radionuclides were mainly produced by proton interactions. For two of them it was possible to determine their angular distribution.