Surface and Underground Ultra Low-Level Liquid Scintillation Spectrometry
dc.contributor.author | Plastino, Wolfango | |
dc.contributor.author | Kaihola, Lauri | |
dc.date.accessioned | 2021-02-11T21:46:18Z | |
dc.date.available | 2021-02-11T21:46:18Z | |
dc.date.issued | 2004-01-01 | |
dc.identifier.citation | Plastino, W., & Kaihola, L. (2004). Surface and underground ultra low-level liquid scintillation spectrometry. Radiocarbon, 46(1), 97-104. | |
dc.identifier.issn | 0033-8222 | |
dc.identifier.doi | 10.1017/S0033822200039400 | |
dc.identifier.uri | http://hdl.handle.net/10150/654954 | |
dc.description | From the 18th International Radiocarbon Conference held in Wellington, New Zealand, September 1-5, 2003. | |
dc.description.abstract | Cosmic background and its variation have been removed in the Gran Sasso National Laboratory (National Institute of Nuclear Physics) by its 1400-m rock overburden. Stable, high-performance liquid scintillation counting conditions are obtained when any remaining variable components of the environmental background, such as radon, are eliminated. The ultra low-level liquid scintillation spectrometer Quantulus(TM) has an anti-Compton guard detector (guard for short) that allows monitoring of gamma radiation in the background. The guard detector efficiency in radiocarbon background reduction is 8% in the Gran Sasso National Laboratory, while 80% is observed in surface laboratories. Thus, atmospheric pressure variations in surface laboratories cause variation in cosmic radiation flux. The Quantulus anti-Compton detector is highly efficient in detecting cosmic radiation, and the sample count rate remains stable in long-term counting. Also, correlation of sample backgrounds with environmental gamma radiation in various laboratories is examined. | |
dc.language.iso | en | |
dc.publisher | Department of Geosciences, The University of Arizona | |
dc.relation.url | http://radiocarbon.webhost.uits.arizona.edu/ | |
dc.rights | Copyright © by the Arizona Board of Regents on behalf of the University of Arizona. All rights reserved. | |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | |
dc.subject | absolute age | |
dc.subject | C 14 | |
dc.subject | carbon | |
dc.subject | Compton radiation | |
dc.subject | cosmic rays | |
dc.subject | Europe | |
dc.subject | gamma rays | |
dc.subject | Gran Sasso National Laboratory | |
dc.subject | instruments | |
dc.subject | isotopes | |
dc.subject | Italy | |
dc.subject | liquid scintillation methods | |
dc.subject | methods | |
dc.subject | monitoring | |
dc.subject | Quantulus | |
dc.subject | radioactive isotopes | |
dc.subject | Southern Europe | |
dc.subject | underground installations | |
dc.title | Surface and Underground Ultra Low-Level Liquid Scintillation Spectrometry | |
dc.type | Proceedings | |
dc.type | text | |
dc.identifier.journal | Radiocarbon | |
dc.description.collectioninformation | The Radiocarbon archives are made available by Radiocarbon and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information. | |
dc.eprint.version | Final published version | |
dc.description.admin-note | Migrated from OJS platform February 2021 | |
dc.source.volume | 46 | |
dc.source.issue | 1 | |
dc.source.beginpage | 97 | |
dc.source.endpage | 104 | |
refterms.dateFOA | 2021-02-11T21:46:18Z |