COMPARATIVE-STUDY OF FE-C BEAD AND GRAPHITE TARGET PERFORMANCE WITH THE NATIONAL-OCEAN-SCIENCE-AMS (NOSAMS) FACILITY RECOMBINATOR ION-SOURCE

被引：22

作者：

KLINEDINST, DB ^{[1
]}

MCNICHOL, AP ^{[1
]}

CURRIE, LA ^{[1
]}

SCHNEIDER, RJ ^{[1
]}

KLOUDA, GA ^{[1
]}

VONREDEN, KF ^{[1
]}

VERKOUTEREN, RM ^{[1
]}

JONES, GA ^{[1
]}

机构：

[1] WOODS HOLE OCEANOG INST, NATL OCEAN SCI ACCELERATOR MASS SPECTROMETRY FACIL, WOODS HOLE, MA 02543 USA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1994年 / 92卷 / 1-4期

关键词：

D O I：

10.1016/0168-583X(94)95999-4

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

An accelerator mass spectrometry (AMS) experiment was designed to investigate C-14 target performance for two target types over a range of isotopic concentrations and sample sizes, with a special focus on the ability to measure C-14 in environmental samples having only microgram amounts of carbon. The findings were positive, showing that precision, accuracy, and stability were adequate to determine C-14 to 1% or better in samples containing as little as 25 mug carbon. Satisfactory Poisson uncertainty and target stability were demonstrated down to a level of 7 mug carbon, but experimental data showed that accurate measurements at that level require detailed knowledge of blank variability and mass dependence of the modern carbon calibration factor.

引用

页码：166 / 171

页数：6

共 13 条

[1]

BOX GEP, 1978, STATISTICS EXPT, P303

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