Scintillation Cocktail Optimization for 14C Dating Using the Packard 2000CA/LL and 2260XL
Issue Date
1991-01-01Keywords
butylPackard 2000CA LL
Packard 2260XL
aromatic hydrocarbons
benzene
hydrocarbons
instruments
data processing
experimental studies
organic compounds
scintillations
organic materials
methods
geochronology
C 14
carbon
isotopes
radioactive isotopes
absolute age
Metadata
Show full item recordCitation
Anderson, R., & Cook, G. T. (1991). Scintillation cocktail optimization for 14C dating using the Packard 2000CA/LL and 2260XL. Radiocarbon, 33(1), 1-7.Journal
RadiocarbonAdditional Links
http://radiocarbon.webhost.uits.arizona.edu/Abstract
In terms of both quenching and, in particular, counting efficiency, scintillation counters employing burst counting circuitry are sensitive to changes in scintillant concentration. Our research demonstrates that there are plateau regions where neither parameter is significantly influenced by moderate changes in a cocktail containing butyl PBD and bis MSB. One of these, consisting of butyl PBD 2.8mg.g-1 and bis MSB 3mg.g-1 of benzene is recommended for these counters, as it enables open window counting efficiencies of ca 90% while exhibiting optimal resistance to quenching. A method for accurate dispensing of such small weights is also described.Type
Articletext
Language
enISSN
0033-8222ae974a485f413a2113503eed53cd6c53
10.1017/S0033822200013151