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MEASUREMENTS OF ANTHROPOGENIC RADIONUCLIDES IN ENVIRONMENTAL-SAMPLES

被引：10
作者：
BOARETTO, E
BERKOVITS, D
DELMAS, R
JOHNSON, RR
KAUFMAN, A
MAGARITZ, M
PAUL, M
POURCHET, M
机构：
[1] UNIV BRITISH COLUMBIA,DEPT PHYS,VANCOUVER V6T 1W5,BC,CANADA
[2] LAB GLACIOL & GEOPHYS ENVIRONM,F-38402 ST MARTIN DHERES,FRANCE
[3] WEIZMANN INST SCI,DEPT ENVIRONM SCI & ENERGY RES,IL-76100 REHOVOT,ISRAEL
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)96033-X
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Measurements of anthropogenic I-129 and Ca-41 in two Greenland firn cores spanning the years 1935 to 1989 have been performed by accelerator mass spectrometry. The two sets of data points measured for I-129 show a discrepancy and prevent definitive conclusions. One of the sets indicates no large increase of I-129 concentrations in contrast to precipitation at lower latitudes. Data on the Ca-41 profile are preliminary and show a few points markedly above background. The feasibility of detection of Sr-90 in the environment by accelerator mass spectrometry is studied and first results are reported.
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页码：350 / 356
页数：7
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