Self-shielding for thick slabs in a converging neutron beam

Authors
Mildner, DFR
Citation
Dfr. Mildner, Self-shielding for thick slabs in a converging neutron beam, NUCL INST A, 432(2-3), 1999, pp. 399-402
Citations number
2
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
ISSN journal
01689002 → ACNP
Volume
432
Issue
2-3
Year of publication
1999
Pages
399 - 402
Database
ISI
SICI code
0168-9002(19990811)432:2-3<399:SFTSIA>2.0.ZU;2-8
Abstract
We have previously given a correction to the neutron self-shielding for a t hin slab to account for the increased average path length through the slab when irradiated in a converging neutron beam. This expression overstates th e case for the self-shielding for a thick (or highly absorbing) slab. We gi ve a better approximation to the increase in effective shielding correction for a slab placed in a converging neutron beam. It is negligible at large absorption mean free paths. (C) 1999 Elsevier Science B.V. All rights reser ved.