Cadmium correction factors of several thermal neutron foil detectors

Journal Article · Sat Sep 01 04:00:00 EDT 1973 · J. Nucl. Energy, v. 27, no. 9, pp. 677-688

DOI:https://doi.org/10.1016/0022-3107(73)90025-7· OSTI ID:4422739

Mueck, K; Bensch, F

If the epithermal activation C/sub ep/ of a foil detector is derived from its epicadmium activation C/sub cd/, the knowledge of the cadmium correction factor F/sub cd/ = C/sub ep//C/sub cd/ is usually required. The cadmium correction factors of V, B, /sup 10/B, In, Au, Mn, Co, and Dy foil detectors of thicknesses up to 0.25 mm and cadmium cover thicknesses of 0.5, 0.8, 1.0, and 1.2 mm have been numerically evaluated according to the most recent cross- section values and resonance parameters. F/sub cd/ values are listed for both monodirectlonal and lsotroplc neutron incidence. While for most of these materials no results have been published so far, for gold and indium the results could be compared with previous calculations and measurements, and a discussion of the results is given. Since the F/sub cd/ values, particularly for Mn, Co, and Dy, exceed unity considerably, neglectlng this correction is not tolerable with precise measurements of the thermal neutron flux density. Comments on the use of F/sub cd/ values in the Westcott convention are added. (auth)

• Research Organization: Atominstitut der Oesterreichischen Hochschulen, Vienna
• NSA Number: NSA-29-000460
• OSTI ID: 4422739
• Journal Information: J. Nucl. Energy, v. 27, no. 9, pp. 677-688, Journal Name: J. Nucl. Energy, v. 27, no. 9, pp. 677-688; ISSN JNUCA
• Country of Publication: United Kingdom
• Language: English

Related Subjects

*ACTIVATION DETECTORS-- DATA PROCESSING
*NEUTRON DETECTION-- ACTIVATION DETECTORS
BORON
BORON 10
CADMIUM
CORRECTIONS
DYSPROSIUM
EPITHERMAL NEUTRONS
FLUX DENSITY
GOLD
INDIUM
N46110* --Instrumentation--Radiation Detection Instruments-- General Detectors & Monitors
RESONANCE INTEGRALS
THERMAL NEUTRONS
VANADIUM
WESTCOTT CROSS SECTIONS