Nuclear Elastic Scattering of Monoenergetic Neutron-Capture Gamma Rays

1963 ◽  
Vol 132 (4) ◽  
pp. 1724-1732 ◽  
Author(s):  
C. S. Young ◽  
D. J. Donahue
Keyword(s):  
Elastic Scattering ◽  
Gamma Rays ◽  
Neutron Capture ◽  
Monoenergetic Neutron

INELASTIC AND ANOMALOUS ELASTIC SCATTERING OF 88.03 keV GAMMA RAYS

1987 ◽  
Vol 48 (C9) ◽  
pp. C9-835-C9-837
Author(s):  
P. P. KANE ◽  
G. BASAVARAJU ◽  
S. M. LAD ◽  
K. M. VARIER ◽  
L. KISSELL ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Gamma Rays

Analysis of primary electric dipole gamma rays from slow-neutron capture by Ca isotopes

1987 ◽  
Vol 36 (2) ◽  
pp. 533-542 ◽  
Author(s):  
S. Kahane ◽  
J. E. Lynn ◽  
S. Raman
Keyword(s):  
Gamma Rays ◽  
Electric Dipole ◽  
Neutron Capture ◽  
Slow Neutron

scholarly journals GAMMA RAYS FOLLOWING NEUTRON CAPTURE IN IRON, SODIUM, AND THORIUM.

1968 ◽  
Author(s):  
O.A. Wasson ◽  
J.B. Garg ◽  
R.E. Chrien ◽  
M.R. Bhat
Keyword(s):  
Gamma Rays ◽  
Neutron Capture

Thermal-neutron capture gamma rays from the 27Al(n, γ)28Al reaction

1969 ◽  
Vol 126 (2) ◽  
pp. 392-400 ◽  
Author(s):  
R. Hardell ◽  
S.O. Idetjärn ◽  
H. Ahlgren
Keyword(s):  
Thermal Neutron ◽  
Gamma Rays ◽  
Neutron Capture ◽  
Thermal Neutron Capture

Prompt Gamma Rays Emitted from the Neutron Capture Reaction of 74Ge

2011 ◽  
Vol 59 (2(3)) ◽  
pp. 1832-1835 ◽  
Author(s):  
K. Y. Hara ◽  
T. Kin ◽  
M. Oshima ◽  
S. Nakamura ◽  
A. Kimura ◽  
...  
Keyword(s):  
Gamma Rays ◽  
Neutron Capture ◽  
Prompt Gamma ◽  
Neutron Capture Reaction ◽  
Capture Reaction

scholarly journals THERMOCOAX rhodium SPND sensitivity dispersion and validation of the sensitivity calculation model

2020 ◽  
Vol 225 ◽  
pp. 04015
Author(s):  
L. Vermeeren ◽  
W. Leysen ◽  
L. Pichon ◽  
V. Salou ◽  
G. Helleux
Keyword(s):  
Gamma Rays ◽  
Neutron Capture ◽  
Characteristic Time ◽  
Thermal Neutron Flux ◽  
Calculation Model ◽  
Delayed Response ◽  
Neutron Detectors ◽  
Recorded Data ◽  
Self Powered ◽  
Beta Emission

This paper describes the neutron irradiation tests of 7 THERMOCOAX Self-Powered Neutron detectors (SPNDs) in the BR1 reactor at SCK•CEN. The SPNDs were fabricated according to the same specifications, but from different fabrication batches. The SPND signals were recorded during stepwise power-up of the reactor, proving the linearity of the SPND response within a wide thermal neutron flux range: from as low as 0.8·109 n/(cm2) to 2.6·1011 n/(cm2s). Intercomparison of the SPND signals shows a very small spread, confirming the repeatability of the THERMOCOAX fabrication processes. The overall neutron sensitivities of the seven SPNDs agreed within a 1% margin. The experimental data were analyzed in terms of prompt and various delayed responses. Prompt contributions to the signal are due to external gamma induced processes and to processes involving gamma rays emitted instantaneously upon neutron capture. The main contribution in a rhodium SPND is due to activation of the rhodium emitter and beta emission during decay of the activated rhodium and leads to a delayed response with a characteristic time of a few minutes. Activation and subsequent beta decay in other materials present in the SPND lead to additional minor delayed signal contributions. The partial SPND sensitivities due to all these processes were calculated using an MCNPX based model and were compared with experimental sensitivities based on the recorded data. The results were in fair agreement; for the overall SPND neutron sensitivity an agreement within a 1% margin was achieved.

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