scholarly journals Determination of the fast-neutron-induced fission cross-section of 242Pu at nELBE

2018 ◽  
Vol 169 ◽  
pp. 00009
Author(s):  
Toni Kögler ◽  
Roland Beyer ◽  
Arnd R. Junghans ◽  
Ronald Schwengner ◽  
Andreas Wagner
Keyword(s):  
Fast Neutron ◽  
Cross Section ◽  
Neutron Transport ◽  
Fission Cross Section ◽  
Data Sets ◽  
Fission Rate ◽  
Relative Cross Section ◽  
Neutron Time ◽  
Induced Fission

The fast-neutron-induced fission cross section of 242Pu was determined in the energy range of 0.5 MeV to 10MeV at the neutron time-of-flight facility nELBE. Using a parallel-plate fission ionization chamber this quantity was measured relative to 235U(n,f). The number of target nuclei was thereby calculated by means of measuring the spontaneous fission rate of 242Pu. An MCNP 6 neutron transport simulation was used to correct the relative cross section for neutron scattering. The determined results are in good agreement with current experimental and evaluated data sets.

Fast-neutron-induced fission cross section of Pu242 measured at the neutron time-of-flight facility nELBE

2019 ◽  
Vol 99 (2) ◽  
Author(s):  
T. Kögler ◽  
A. R. Junghans ◽  
R. Beyer ◽  
M. Dietz ◽  
Ch. E. Düllmann ◽  
...  
Keyword(s):  
Fast Neutron ◽  
Cross Section ◽  
Time Of Flight ◽  
Fission Cross Section ◽  
Neutron Time ◽  
Induced Fission

scholarly journals Measurement of Fast Neutron Induced Fission Cross Section for Actinide Nuclides

1989 ◽  
Vol 26 (1) ◽  
pp. 11-14 ◽  
Author(s):  
Mamoru BABA ◽  
Naohiro HIRAKAWA ◽  
Tomohiko IWASAKI ◽  
Kazutaka KANDA
Keyword(s):  
Fast Neutron ◽  
Cross Section ◽  
Fission Cross Section ◽  
Induced Fission

Fast Neutron Induced Fission Cross Section for Pu-239

1983 ◽  
pp. 36-38 ◽  
Author(s):  
Zhou Xianjian ◽  
Yan Wuguang ◽  
Zhou Huiming ◽  
Deng Xinlu ◽  
Rong Chaofan ◽  
...  
Keyword(s):  
Fast Neutron ◽  
Cross Section ◽  
Fission Cross Section ◽  
Induced Fission

scholarly journals Measurement of Fast Neutron-Induced Fission Cross Section Ratio of Neptunium-237 relative to Uranium-235 between 6 and 120 keV

1999 ◽  
Vol 36 (2) ◽  
pp. 127-134 ◽  
Author(s):  
Tomohiko IWASAKI ◽  
Kciichiro SAITO ◽  
Mamoru BABA ◽  
Toshiya SANAMI ◽  
Yasushi NAUCIII ◽  
...  
Keyword(s):  
Fast Neutron ◽  
Cross Section ◽  
Fission Cross Section ◽  
Cross Section Ratio ◽  
Section Ratio ◽  
Induced Fission

scholarly journals Data analysis of the FIC detector at the n_TOF facility

2019 ◽  
Vol 14 ◽  
pp. 155
Author(s):  
D. Karadimos ◽  
K. Ioannides ◽  
P. Assimakopoulos ◽  
N. Tsagas ◽  
P. Paulopoulos ◽  
...  
Keyword(s):  
Data Analysis ◽  
Cross Section ◽  
Neutron Beam ◽  
Fission Cross Section ◽  
Digital Converter ◽  
Analog To Digital ◽  
Analysis Technique ◽  
Induced Fission ◽  
Line Analysis

The analysis technique applied to the data from the FIC (Fast Induction Chamber) detector at the n_TOF facility is presented here. The measurements took place at the installation of CERN in Geneva. The detector was placed in front of the neutron beam for the determination of the neutron induced fission cross-section of various isotopes of the Th cycle. For the data acquisition, several fADC (flash Analog to Digital Converter) channels were used. This facilitated the detailed off-line analysis of data since all information was stored in the computer. The analysis of the data aimed at the discrimination of fission events. For this end we had to deal with three main issues: (1) The subtraction of the background, (2) the fitting of the pulses and (3) the automation of the process. The analysis pertaining to these issues will be further elucidated here.

scholarly journals 243Am neutron-induced fission cross section in the fast neutron energy range

2012 ◽  
Vol 85 (4) ◽  
Author(s):  
G. Kessedjian ◽  
G. Barreau ◽  
M. Aïche ◽  
B. Jurado ◽  
A. Bidaud ◽  
...  
Keyword(s):  
Energy Range ◽  
Fast Neutron ◽  
Cross Section ◽  
Neutron Energy ◽  
Fission Cross Section ◽  
Neutron Energy Range ◽  
Induced Fission

Measurement of fast neutron induced fission cross section of thorium using Lexan plastic track detector

Pramana ◽  
1997 ◽  
Vol 49 (5) ◽  
pp. 515-519 ◽  
Author(s):  
R K Jain ◽  
H S Virk ◽  
J Rama Rao ◽  
S K Bose
Keyword(s):  
Fast Neutron ◽  
Cross Section ◽  
Fission Cross Section ◽  
Track Detector ◽  
Induced Fission

scholarly journals Preparation and characterization of 10B targets at JRC-Geel

2020 ◽  
Vol 229 ◽  
pp. 03005
Author(s):  
David Vanleeuw ◽  
Jan Heyse ◽  
Goedele Sibbens ◽  
Mariavittoria Zampella
Keyword(s):  
Cross Section ◽  
Cross Sections ◽  
Time Of Flight ◽  
Fission Cross Section ◽  
Nuclear Data ◽  
Areal Density ◽  
Reaction Cross ◽  
Neutron Time

Measurements of neutron-induced cross sections to generate nuclear data are a core activity of the JRC-Directorate G Standards for Nuclear Safety, Security and Safeguards unit in Geel. Thin 10B layers are of great importance in this activity as they are used to measure the absolute neutron flux in the beam using the standard 10B(n,α)7Li reaction cross-section as a reference. After a period of reduced activity and in line with a renewed interest for nuclear data, the demand for high quality 10B targets increased. In this paper we describe the design and features of a new e-beam evaporator specifically customized for the preparation of boron targets as replacement of the old dysfunctional equipment. Several 10B targets of varying thicknesses were prepared and characterized as part of the factory acceptance tests and implementation in the JRC-Geel target preparation laboratory. Differential substitution weighing was applied for mass determination and in order to calibrate the thickness monitor. Comparative time-of-flight measurements relative to 10B and 235U standard targets were conducted at the GELINA neutron time-of-flight facility at the JRC-Geel site as second methodology for the determination of 10B areal density. The morphology of the layers was assessed by means of Scanning Electron Microscopy (SEM). The determination of impurities was realized by means of Energy Dispersive X-ray (EDX). Finally, two boron targets were prepared in the frame of the measurement of the neutron induced fission cross-section of 230Th at the n_TOF neutron time-of-flight facility at CERN.

scholarly journals Measurement of Fast Neutron Induced Fission Cross Section Ratios of Pu-240 and Pu-242 Relative to U-235

1990 ◽  
Vol 27 (10) ◽  
pp. 885-898 ◽  
Author(s):  
Tomohiko IWASAKI ◽  
Fumitoshi MANABE ◽  
Mamoru BABA ◽  
Shigeo MATSUYAMA ◽  
Hiroyuki KIMIYAMA ◽  
...  
Keyword(s):  
Fast Neutron ◽  
Cross Section ◽  
Fission Cross Section ◽  
Induced Fission
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