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Appl Radiat Isot. 2010 Jul-Aug;68(7-8):1266-9. doi: 10.1016/j.apradiso.2009.11.009. Epub 2009 Nov 13.

IFIN-HH ionization chamber calibration and its validation; electrometric system improvement.

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Horia Hulubei National Institute of R&D for Physics and Nuclear Engineering, IFIN-HH, Bucharest, Romania.


The paper presents the results obtained in the calibration of the CENTRONIC IG12/20A ionization chamber for 18 gamma ray emitters, and its improvement with a Keithley 6517A electrometer. The calibration figures were determined either directly in pA MBq(-1) units, or calculated from old units, by using the system capacity value. The calibration figures, determined with RML's standards, are compared with those deduced from the KCRV or the mean of the comparisons, and the values determined at PTB-Germany.

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