International Committee for Radionuclide Metrology (ICRM)
Gamma-Ray Spectrometry Working Group
The Gamma Spectrometry Working Group is devoted to the development of the metrological aspects of gamma-ray spectrometry and its applications.
This includes, but is not restricted to: measurement techniques and equipment, determination of photon emission intensities,
detector efficiency calibrations (including Monte Carlo methods), coincidence-summing corrections, uncertainties, correlations,
new instrumentation, X-ray spectrometry.
Starting with the ICRM 2005 conference, a series of exercises to compare Monte Carlo simulation codes, as applied to detector calibrations, was organized.
The exercises addressed problems such as direct computation of efficiency, application of Monte Carlo codes to efficiency transfer, computation of coincidence summing corrections in various cases.
The results of the most recent exercise (concerning coincidence summing corrections in the presence of high X ray contributions) will be presented during the ICRM 2015 conference in Vienna.
Gamma-Ray Spectrometry Working Group Meetings
These meetings give the opportunity to take stock of the on-going actions and to propose new ones.
The most recent Gamma Spectrometry Working Group business
meeting was held in Tsukuba on September 29th, 2011 as part of the
ICRM2011 conference. The report presented during this meeting is included here:
The last workshop of the Gamma-Ray Spectrometry Working Group was held on October 18-19, 2010, hosted by the ENEA at
Casaccia Research Centre (30 km North Rome, Italy). Part of the meeting was dedicated to the presentation and discussion
of the coincidence summing action, nevertheless more topics were included. The report of the workshop is attached here:
A dedicated workshop was held on February 23-24, 2009, in the building of Laboratoire National de Métrologie et d'Essais in Paris.
The meeting mainly concentrated on the coincidence summing action, however, a number of other items, such as uncertainties in gamma-ray
spectrometry, definition of detection limits and minimum detectable activity were also discussed.
The report of the workshop is included here: GSWG_Meeting_Report_2009.doc
Workshop schedule and presentations.
Previous business meetings of the Gamma-Ray Spectrometry Working Group were held in Cape Town
(4 September 2007) and in Bratislava (9 September 2009), respectively during the
2007 and 2009 ICRM conferences. The relevant reports are included here: ICRM_GSWG_Report_2007.doc,
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