eprintid: 2364
rev_number: 6
eprint_status: archive
userid: 70
dir: disk0/00/00/23/64
datestamp: 2014-11-10 14:21:24
lastmod: 2015-03-25 09:16:39
status_changed: 2014-11-10 14:21:24
type: article
metadata_visibility: show
creators_name: Colombetti, Paolo
creators_name: Taricco, Carla
creators_name: Bhandari, Narendra
creators_name: Sinha, Neeharika
creators_name: Di Martino, M. 
creators_name: Cora, A
creators_name: Vivaldo, Gianna
creators_id: 
creators_id: 
creators_id: 
creators_id: 
creators_id: 
creators_id: 
creators_id: gianna.vivaldo@imtlucca.it
title: Low gamma activity measurement of meteorites using HPGe–NaI detector system 
ispublished: pub
subjects: QC
divisions: EIC
full_text_status: none
keywords: Gamma-Ray spectroscopy; Cosmogenic radionuclides; Meteorites; Cosmic ray flux; Coincidence techniques
note: Proceedings of the 12th Pisa Meeting on Advanced Detectors La Biodola, Isola d’Elba, Italy, May 20 – 26, 2012 
abstract: The radioactivity in natural samples like cosmogenic isotopes in meteorites, in Moon samples, in earth and ice in Antarctica, produced by protons, neutrons, μ mesons and other charged particles, is very low, usually below 0.001 disintegration per minute per gram. Therefore, very special techniques are required, particularly if the sample cannot be destroyed for chemical separation and system must have possibility of counting large amount of sample. For this purpose we have developed a highly selective Ge–NaI coincidence spectrometer, operating in the underground Laboratory of Monte dei Cappuccini (INAF) in Torino. We have then improved it by developing a multiparametric acquisition system, which allows better selectivity of the coincidence windows (e.g., in meteorites, to disentangle cosmogenic 44Ti signal from overlapping 214Bi, originated by naturally occurring 238U). Applications of this system to the study of meteorites (chondrite, achondrite and iron samples) are described. 
date: 2013-08
date_type: published
publication: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 
volume: 718
publisher: Elsevier
pagerange: 140 - 142
id_number: 10.1016/j.nima.2012.07.053
refereed: TRUE
issn: 0168-9002
official_url: http://www.sciencedirect.com/science/article/pii/S0168900212008455
citation:   Colombetti, Paolo and Taricco, Carla and Bhandari, Narendra and Sinha, Neeharika and Di Martino, M.  and Cora, A and Vivaldo, Gianna  Low gamma activity measurement of meteorites using HPGe–NaI detector system.  Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment , 718.  140 - 142.  ISSN 0168-9002      (2013)