scholarly journals NEUTRON ENERGY DEPENDENT CROSS SECTION EVALUATION BY A MULTIPLE FOIL ACTIVATION METHOD.

1971 ◽  
Author(s):  
W McElroy ◽  
R Simons ◽  
J Ulseth ◽  
L Kellogg
Keyword(s):  
Cross Section ◽  
Neutron Energy ◽  
Activation Method ◽  
Foil Activation ◽  
Energy Dependent ◽  
Section Evaluation

Neutron energy spectrum determination by multi-foil activation method in the gekko XII laser inertial fusion experiment

1989 ◽  
Vol 10 ◽  
pp. 151-156 ◽  
Author(s):  
Tetsuo Iguchi ◽  
Masao Chaki ◽  
Masaharu Nakazawa ◽  
Noriaki Miyanaga ◽  
Masanobu Yamanaka ◽  
...  
Keyword(s):  
Energy Spectrum ◽  
Neutron Energy ◽  
Activation Method ◽  
Inertial Fusion ◽  
Neutron Energy Spectrum ◽  
Foil Activation

A study of atmospheric neutrons by the resonance detector method

1968 ◽  
Vol 46 (10) ◽  
pp. S1038-S1040
Author(s):  
Yu. E. Efimov ◽  
A. M. Romanov
Keyword(s):  
Neutron Spectrum ◽  
Neutron Energy ◽  
Epithermal Neutron ◽  
Geomagnetic Latitude ◽  
Activation Method ◽  
Indium Foil ◽  
Lower Hemisphere ◽  
Epithermal Neutrons ◽  
Foil Activation ◽  
Detector Method

The possibilities and the conditions of using resonance detectors for investigation of slow neutrons in the atmosphere are discussed. The epithermal neutron fluxes from the lower hemisphere were measured by means of the indium foil activation method in June 1966 at the geomagnetic latitude 47°. Assuming the epithermal atmospheric neutron spectrum to be Φ(E) = Φ0/E and expressing the neutron energy in eV, we obtain the following values of Φ0 (neutron cm−2 s−1) from our measurements: 0.078 ± 0.019 (at a depth x = 40 g cm−2), 0.049 ± 0.015 (x = 22 g cm−2), 0.023 ± 0.010 (x = 8 g cm−2). It is pointed out that resonance detectors can be used to study the spectra of epithermal neutrons in nonequilibrium atmospheric layers.

scholarly journals Accurate measurement of the standard 235U(n,f) cross section from thermal to 170 keV neutron energy

2020 ◽  
Vol 239 ◽  
pp. 08002
Author(s):  
S. Amaducci ◽  
O. Aberle ◽  
J. Andrzejewski ◽  
L. Audouin ◽  
M. Bacak ◽  
...  
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Cross Section ◽  
Neutron Energy ◽  
Fission Cross Section ◽  
Silicon Detectors ◽  
Experimental Apparatus ◽  
Section Evaluation

An accurate measurement of the 235U(n,f) cross section from thermal to 170 keV of neutron energy has recently been performed at n_TOF facility at CERN using 6Li(n,t)4He and 10B(n,α)7Li as references. This measurement has been carried out in order to investigate a possible overestimation of the 235U fission cross section evaluation provided by most recent libraries between 10 and 30 keV. A custom experimental apparatus based on in-beam silicon detectors has been used, and a Monte Carlo simulation in GEANT4 has been employed to characterize the setup and calculate detectors efficiency. The results evidenced the presence of an overestimation in the interval between 9 and 18 keV and the new data may be used to decrease the uncertainty of 235U(n,f) cross section in the keV region.

Neutron induced cross section measurements on gallium isotopes at neutron energy 14.90 ± 0.01 MeV and covariance analysis

2019 ◽  
Vol 992 ◽  
pp. 121613 ◽  
Author(s):  
Rebecca Pachuau ◽  
B. Lalremruata ◽  
A. Gandhi ◽  
S.V. Suryanarayana ◽  
B.K. Nayak ◽  
...  
Keyword(s):  
Cross Section ◽  
Neutron Energy ◽  
Covariance Analysis

Measurement of theAm241(n,2n)reaction cross section using the activation method

2006 ◽  
Vol 73 (6) ◽  
Author(s):  
G. Perdikakis ◽  
C. T. Papadopoulos ◽  
R. Vlastou ◽  
A. Lagoyannis ◽  
A. Spyrou ◽  
...  
Keyword(s):  
Cross Section ◽  
Reaction Cross Section ◽  
Reaction Cross ◽  
Activation Method

Cross-section measurement for the 93 Nb(n, 2n) 92g Nb reaction at the neutron energy of 14.6 MeV by the AMS method

2018 ◽  
Vol 42 (7) ◽  
pp. 074002
Author(s):  
Guo-Zhu He ◽  
Bin Shi ◽  
Ming He ◽  
Zhen-Yu Li ◽  
Shi-Long Liu ◽  
...  
Keyword(s):  
Cross Section ◽  
Neutron Energy ◽  
Cross Section Measurement ◽  
Section Measurement
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