Scintillation Counter Performance at the SMU Radiocarbon Laboratory
Issue Date
1987-01-01Keywords
Southern Methodist Universityliquid scintillation counters
laboratory studies
instruments
models
methods
C 14
carbon
isotopes
radioactive isotopes
absolute age
Metadata
Show full item recordCitation
Devine, J. M., & Haas, H. (1987). Scintillation Counter Performance at the SMU Radiocarbon Laboratory∗. Radiocarbon, 29(1), 12-17.Publisher
American Journal of ScienceJournal
RadiocarbonAdditional Links
http://radiocarbon.webhost.uits.arizona.edu/Abstract
Results are presented of a study of counter performance and vial characteristics for three liquid scintillation counters used at the SMU Radiocarbon Laboratory: the Intertechnique LS20, Packard Tri-Garb 460C, and LKB Wallac Rack Beta 1217. Modifications to photomultiplier tube high voltage, pre-amplifier gain, energy window settings, counting vial design, and sample holder design have resulted in reduced background, higher counting efficiency, and greater long-term stability for the Intertechnique and Packard counters. Square quartz counting vials are used in the Intertechnique and Packard counters with excellent results. Use of Teflon vials in the LKB counter requires careful cleaning procedures and long counting times.Type
Articletext
Language
enISSN
0033-8222ae974a485f413a2113503eed53cd6c53
10.1017/S0033822200043514