Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/4356
Title: Activity measurements of 192Ir solid sources using a well-type ionization chamber
Authors: Gonçalves, J. A. C. 
Botelho, S. 
Pascholati, P. R. 
Ridenti, M. A. 
Fraga, M. M. F. R. 
Camara, J. R. 
Calvo, W. A. 
Bueno, C. C. 
Keywords: Ionization chambers; Activity; Radioactive decay
Issue Date: 2007
Citation: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 580:1 (2007) 222-225
Abstract: This work presents the preliminary activity measurements of 192Ir solid sources, applied in industrial gammagraphy, produced by the Sealed Sources Laboratory in the Radiation Technology Center (CTR) at IPEN-CNEN/SP. The pellets' activity measurements were carried out with a well-type ionization chamber developed at CTR. The chamber current-voltage response was studied as a function of 192Ir activities ranging from 27 GBq (0.75 Ci) to 4.1 TBq (110 Ci), under constant geometrical conditions. The results obtained have shown both the linearity of the ionization current and the absence of appreciable recombination or diffusion losses.
URI: http://hdl.handle.net/10316/4356
DOI: 10.1016/j.nima.2007.05.089
Rights: openAccess
Appears in Collections:FCTUC Física - Artigos em Revistas Internacionais

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