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|Title:||DONA Detector: Further Improvements and Evaluation for Field Applications|
|Authors:||LOEVESTAM GOERAN; FESSLER ANDREAS; GASPARRO JOEL; HULT MIKAEL; KOCKEROLS PIERRE; MARISSENS GERD; OKKINGA KLAAS; WIESLANDER JOHANNA|
|Other Identifiers:||EUR 23305 EN|
|Type:||EUR - Scientific and Technical Research Reports|
|Abstract:||The DONA neutron spectrometer concept is based on the measurement of neutron induced activity in a series of small metal disks that have been exposed to a neutron field. The induced activity is measured and the neutron spectrum is calculated using and unfolding technique, based on environmental neutron spectra. The novelty of the approach lies in the concept as such, including usage of carefully selected metal disks arranged in a holder, high performance gamma-ray spectrometry and spectrum unfolding using a library of environmental neutron spectra. This report covers the IRMM exploratory research prolongation project for 2006 and now environmental neutron fields with considerably lower neutron fluence rates are used. The result shows that after further refinement of the detector device and the data evaluation program the detector can very well be used for environmental neutron fluence measurements. Tests were done at PTB, Germany, using their calibrated neutron source and at the MOX fuel fabrication plant Belgonuclearire in Mol, Belgium.|
|JRC Institute:||Institute for Reference Materials and Measurements|
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