Investigation of NaI(Tl)-Crystal Having Anomalous Inhomogeneity of Light Yield Spatial Distribution


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An experiment with a layer-by-layer irradiation of the large volume NaI(Tl)-crystal has been performed. The inhomogeneity of the light yield spatial distribution along the crystal’s axis was revealed. A new method of accounting for the revealed inhomogeneity in the processing of the gamma-ray spectra registered using a crystal with nonuniform response is proposed. This method is quite universal: the conventional stages of the detector investigation (the calibration with standard gamma-ray sources and the inhomogeneity estimation using a layer-by-layer irradiation) are complemented by another one stage with computing of the absorbed energy distribution using Monte Carlo simulation. Finally, based on the results of these stages, the combined broadening function is formed for calculation of the response function.

Sobre autores

V. Gaganov

Russian Federal Nuclear Center-VNIIEF

Autor responsável pela correspondência
Email: gavaler@post.com
Rússia, Sarov, Nizhnij Novgorod oblast, 607190

A. Vasjuhin

Russian Federal Nuclear Center-VNIIEF

Email: gavaler@post.com
Rússia, Sarov, Nizhnij Novgorod oblast, 607190

A. Dolgopolov

Russian Federal Nuclear Center-VNIIEF

Email: gavaler@post.com
Rússia, Sarov, Nizhnij Novgorod oblast, 607190

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