EXPECTED ATMOSPHERIC CONCENTRATION OF AR-42

Authors
PEURRUNG AJ BOWYER TW CRAIG RA REEDER PL
Citation
Aj. Peurrung et al., EXPECTED ATMOSPHERIC CONCENTRATION OF AR-42, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 396(3), 1997, pp. 425-426
Citations number
18
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
396
Issue
3
Year of publication
1997
Pages
425 - 426
Database
ISI
SICI code
0168-9002(1997)396:3<425:EACOA>2.0.ZU;2-J
Abstract
Recent estimates [1,2] of the atmospheric Ar-42 concentration are like ly to be low due to neglect of cosmic-ray production via the reaction Ar-40(alpha, 2p) in the upper atmosphere. The calculations in this let ter lead to an expected ratio of Ar-42/Ar-40 of roughly 10(-20), compa red with existing experimental [2,3] and theoretical upper limits of 1 0(-18) and 1.3 x 10(-23), respectively.