Accelerator mass spectrometry of Ni-63 using a gas-filled magnet at the Munich Tandem Laboratory

Citation
G. Rugel et al., Accelerator mass spectrometry of Ni-63 using a gas-filled magnet at the Munich Tandem Laboratory, NUCL INST B, 172, 2000, pp. 934-938
Citations number
13
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
ISSN journal
0168583X → ACNP
Volume
172
Year of publication
2000
Pages
934 - 938
Database
ISI
SICI code
0168-583X(200010)172:<934:AMSONU>2.0.ZU;2-5
Abstract
The detection of Ni-63 (T-1/2 = 100.1 yr) by means of accelerator mass spec trometry (AMS) using a gas-filled magnet (GFM) is described. The experiment al setup includes a dedicated ion source, a 14 MV MP tandem, a GFM and a mu ltianode ionization chamber. First results indicate a background level of N i-63/Ni ratios as low as 2 x 10(-14). This sensitivity will allow - for the first time ever - to detect Ni-63 induced by fast neutrons in copper sampl es from Hiroshima and Nagasaki, even for distances beyond 1500 m from the h ypocenters. Thus, it will be possible to reconstruct experimentally the neu tron doses of the A-bomb survivors from Hiroshima and Nagasaki. (C) 2000 El sevier Science B.V. All rights reserved.