The IAEA-CU-2009-04 ALMERA proficiency test on the determination of radionuclides in simulated air filters

The objective of this proficiency test is to evaluate the performance of ALMERA network laboratories in
the measurement of gamma-emitting radionuclides in simulated air filters. The organization of this
proficiency test is emerging from the recommendations of the participants of the ALMERA network
coordination meetings.

  List of analytes(tentative):

The proficiency test package will contain 4 spiked simulated air filters and one quality control filter with know activities (to the participants) of Co-60 and Ba-133.

The simulated air filter is made of plastic material (diameter: 47 mm; thickness: 0.30 mm). The radionuclides are deposited on the simulated air filter as 19 drops on hexagonal grids as reported in the following pictures. The diameter of the active deposit is 34 mm.

The design of the proficiency test will be such that, you will be asked to analyse four filters for the following radionuclides 54Mn, 57Co, 59Fe, 60Co, 65Zn, 109Cd, 125Sb, 133Ba, 134Cs, 137Cs, 152Eu, 154Eu, and 241Am. Please note that only some of the listed radionuclides will be present in the samples. The activity levels of the radionuclides are such that they can be detected by a conventional 35% relative efficiency HPGe gamma-ray spectrometer within a 4 hour counting time.

  Deadlines (tentative): 

On-line registration opens for participants   : 15 April 2009
Closing registration                                          : 15 May 2009
Confirming the participation by the IAEA       : 15 June 2009
Samples shipment                                           : 15 September 2009
Closing reporting web page                           : 15 October 2009
Summary draft report                                       : 15 November 2009

For more information contact the PT Officer Mr. Abdulghani Shakhashiro at:

Help and Service
Copyright © 2009 International Atomic Energy Agency, P.O. Box 100, Wagramer Strasse 5, A-1400 Vienna, Austria