Deconvolution of neutron spectrum for a DT neutron generator based on a combination of activation method, unfolding processes and numerical simulations

2020 ◽  
Vol 156 ◽  
pp. 111593
Author(s):  
Ewa Laszynska ◽  
Katarzyna Mikszuta-Michalik
Keyword(s):  
Numerical Simulations ◽  
Neutron Spectrum ◽  
Neutron Generator ◽  
Activation Method

scholarly journals Project of the borehole neutron generator for the direct determination of oxygen and carbon by activation method

2016 ◽  
Vol 747 ◽  
pp. 012007
Author(s):  
B Yu Bogdanovich ◽  
E D Vovchenko ◽  
A V Iliinskiy ◽  
A A Isaev ◽  
К I Kozlovskiy ◽  
...  
Keyword(s):  
Neutron Generator ◽  
Direct Determination ◽  
Activation Method

NEUTRON SPECTRUM ANALYSES BY FOIL ACTIVATION METHOD FOR HIGH-ENERGY PROTON BEAMS

2009 ◽  
Author(s):  
CHEOL HO PYEON ◽  
HIROSHI SHIGA ◽  
KAZUAKI ABE ◽  
HIROSHI YASHIMA ◽  
TSUYOSHI MISAWA ◽  
...  
Keyword(s):  
Neutron Spectrum ◽  
High Energy ◽  
Activation Method ◽  
High Energy Proton ◽  
Proton Beams ◽  
Energy Proton ◽  
Foil Activation

Cross section measurements for the reactions of fast neutrons with indium

1976 ◽  
Vol 54 (7) ◽  
pp. 757-765 ◽  
Author(s):  
D. C. Santry ◽  
J. P. Butler
Keyword(s):  
Neutron Flux ◽  
Cross Section ◽  
Neutron Spectrum ◽  
Cross Sections ◽  
Fission Neutron ◽  
Activation Method ◽  
Fast Neutrons ◽  
Fission Neutron Spectrum

Excitation curves for the reactions 115In(n,n′) 115Inm, 113In(n,n′)113Inm, and 115In(n,2n)114Inm have been measured by the activation method. The neutron flux at energies below 5.1 MeV was determined with a calibrated neutron long counter while at higher energies, measurements were made relative to the known cross section for the 32S(n,p) reaction. Effective cross sections for a 235U fission-neutron spectrum calculated from our measured excitation curves are 173 ± 9 mb for 115In(n,n′)115Inm, 123 ± 24 mb for 113In(n,n′)113Inm, and 0.64 ± 0.06 mb for 115In(n,2n)114Inm.

Measurement of Reaction Rate Distribution and Neutron Spectrum in China Experimental Fast Reactor

2013 ◽  
Author(s):  
Xiaoliang Chen ◽  
Zhendong Fan ◽  
Xiaoxian Chen ◽  
Dingsheng Hu
Keyword(s):  
Low Power ◽  
Neutron Spectrum ◽  
Fast Reactor ◽  
Reaction Rate ◽  
Gamma Ray ◽  
Activation Method ◽  
Activity Measurement ◽  
Axial Distribution ◽  
Rate Distribution ◽  
China Experimental Fast Reactor

China Experimental Fast Reactor (CEFR) has completed physics start-up tests in 2010 and connected the grid on 40%FP in 2011. The reaction rate distribution, neutron spectrum are some important parameters for CEFR neutron field. In order to measure these parameters some low power irradiation tests using foil activation method have been done in CEFR core. Two kinds of special irradiation test subassemblies have been developed and fabricated for irradiation in CEFR core. And a digital high purity Germanium gamma-ray spectrometer system has been established for foil activity measurement. After dozens of low power irradiation tests in CEFR core, the radial and axial distribution of 235U and 238U fission reaction rate have been measured. The distribution of 238U capture reaction rate in CEFR core was also obtained in these tests. The experimental values of reaction rate are according with the calculation values well. Neutron spectrum was measured by means of multifoil activation method. And a neutron spectrum adjusting code was also compiled to determine the neutron spectrum.

Cross Section Measurements for the 103Rh(n,n′)103Rhm Reaction from 0.122 to 14.74 MeV

1974 ◽  
Vol 52 (15) ◽  
pp. 1421-1428 ◽  
Author(s):  
D. C. Santry ◽  
J. P. Butler
Keyword(s):  
Neutron Flux ◽  
Cross Section ◽  
Neutron Spectrum ◽  
Cross Sections ◽  
Energy Levels ◽  
Effective Cross Section ◽  
Fission Neutron ◽  
Activation Method ◽  
Excitation Curve ◽  
Fission Neutron Spectrum

Cross sections for the production of 103Rhm were measured by the activation method. At energies below 5.3 MeV the neutron flux was measured with a calibrated neutron long counter, while at higher energies, measurements were made relative to the known cross section for the 32S(n,p)32P reaction. The shape of the Rh excitation curve is discussed in terms of known energy levels in 103Rh. An effective cross section for a 235U fission neutron spectrum calculated from the measured excitation curve is 724 ± 43 mb.

Sign in / Sign up

Export Citation Format

Share Document