SPECIFICATION OF BERYLLIUM TARGETS FOR NEUTRON-PRODUCTION

Citation
R. Bottger et al., SPECIFICATION OF BERYLLIUM TARGETS FOR NEUTRON-PRODUCTION, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 334(1), 1993, pp. 160-164
Citations number
8
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
ISSN journal
01689002
Volume
334
Issue
1
Year of publication
1993
Pages
160 - 164
Database
ISI
SICI code
0168-9002(1993)334:1<160:SOBTFN>2.0.ZU;2-Z
Abstract
The absolute mass of a thin Be layer deposited onto a tantalum backing was determined by differential weighing of four targets to obtain the average areal density before their utilization in a Be(alpha, n)C cro ss section measurement. In a number of preliminary investigations, the homogeneity of the sample area was checked non-destructively by measu ring the spectral neutron yield when the target was bombarded with an alpha beam in various geometrical arrangements. The inhomogeneities fo und contributed significantly to the 2.5% total uncertainty on the are al density of the deposit.