Triple- and quadruple-escape peaks in HPGe detectors: Experimental observation and Monte Carlo simulation

The triple- and quadruple-escape peaks of 6.128 MeV photons from the (19)F(p,alpha gamma)(16)O nuclear reaction were observed in an HPGe detector. The experimental peak areas, measured in spectra projected with a restriction function that allows quantitative comparison of data from different multiplicities, are in reasonably good agreement with those predicted by Monte Carlo simulations done with the general-purpose radiation-transport code PENELOPE. The behaviour of the escape intensities was simulated for some gamma-ray energies and detector dimensions; the results obtained can be extended to other energies using an empirical function and statistical properties related to the phenomenon. (C) 2010 Elsevier B.V. All rights reserved.

Ministerio de Ciencia e Innovacion

Ministerio de Ciencia e Innovacion[PHB2007-0059-TA]

Ministerio de Ciencia e Innovacion[FPA2006-12066]

Ministerio de Ciencia e Innovacion

FEDER

Fondo Europeo de Desarrollo Regional (FEDER)

Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior

Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior[CAPES-DGU 176/08]

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP)

Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Comissão Nacional de Energia Nuclear (CNEN)

Comissao Nacional de Energia Nuclear (CNEN)