High-Performance 14C Gas-Proportional Counting System Applying Pulse-Shape Discrimination
| dc.contributor.author | Äikää, Osmo | |
| dc.contributor.author | Mäntynen, Pertti | |
| dc.contributor.author | Kankainen, Tuovi | |
| dc.date.accessioned | 2021-02-11T20:33:08Z | |
| dc.date.available | 2021-02-11T20:33:08Z | |
| dc.date.issued | 1992-01-01 | |
| dc.identifier.citation | Äikää, O., Mäntynen, P., & Kankainen, T. (1992). High-performance 14C gas-proportional counting system applying pulse-shape discrimination. Radiocarbon, 34(3), 414-419. | |
| dc.identifier.issn | 0033-8222 | |
| dc.identifier.doi | 10.1017/S0033822200063621 | |
| dc.identifier.uri | http://hdl.handle.net/10150/653315 | |
| dc.description | From the 14th International Radiocarbon Conference held in Tucson, AZ, May 20-24, 1991. | |
| dc.description.abstract | The new 14C dating system of the Geological Survey of Finland consists of three CO2 proportional counters of conventional size, a liquid scintillation anticoincidence guard, and a passive shield of about 90-year-old iron. The counting room is an air-conditioned Faraday cage constructed of concrete with aggregate of crystalline Precambrian limestone. We apply pulse-shape discrimination that greatly improves the precision of our 14C analyses the reduction of background is over 70%, while the modern count rate is reduced only by 15 to 20%. The purity of the counting gas is monitored by recording the cosmic muon pulse-height spectrum. At present, the dating limit for a two-day measurement is 57 ka. We summarize here the most significant results and aspects of pulse-shape discrimination | |
| 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.title | High-Performance 14C Gas-Proportional Counting System Applying Pulse-Shape Discrimination | |
| dc.type | Proceedings | |
| dc.type | text | |
| dc.identifier.journal | Radiocarbon | |
| dc.description.note | This material was digitized as part of a cooperative project between Radiocarbon and the University of Arizona Libraries. | |
| 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 | 34 | |
| dc.source.issue | 3 | |
| dc.source.beginpage | 414 | |
| dc.source.endpage | 419 | |
| refterms.dateFOA | 2021-02-11T20:33:08Z |
