scholarly journals Np-237 incineration study in various beams in ADS setup QUINTA

Nukleonika ◽  
2018 ◽  
Vol 63 (1) ◽  
pp. 17-22 ◽  
Author(s):  
Stanisław Kilim ◽  
Elżbieta Strugalska-Gola ◽  
Marcin Szuta ◽  
Marcin Bielewicz ◽  
Sergej I. Tyutyunnikov ◽  
...  
Keyword(s):  
Fission Product ◽  
Proton Beam ◽  
Neutron Capture ◽  
Gamma Ray ◽  
Fission Products ◽  
Neutron Field ◽  
Gamma Ray Spectrometry ◽  
Driven System ◽  
Accelerator Driven System

Abstract Neptunium-237 samples were irradiated in a spallation neutron field produced in accelerator-driven system (ADS) setup QUINTA. Five experiments were carried out on the accelerators at the JINR in Dubna - one in carbon (C6+), three in deuteron, and one in a proton beam. The energy in carbon was 24 GeV, in deuteron 2, 4 and 8 GeV, respectively, and 660 MeV in the proton beam. The incineration study method was based on gamma-ray spectrometry. During the analysis of the spectra several fission products and one actinide were identified. Fission product activities yielded the number of fissions. The actinide (Np-238), a result of neutron capture by Np-237, yielded the number of captures. The main goal of this work was to find out if and how the incineration rate depended on parameters of the accelerator beam.

scholarly journals Am-241 incineration measurements with activation method in the QUINTA neutron field

2019 ◽  
Vol 204 ◽  
pp. 04004
Author(s):  
S. Kilim ◽  
E. Strugalska-Gola ◽  
M. Szuta ◽  
S. Tyutyunnikov ◽  
O. Dalkhjav ◽  
...  
Keyword(s):  
Fission Product ◽  
Proton Beam ◽  
Neutron Capture ◽  
Gamma Ray ◽  
Fission Products ◽  
Neutron Field ◽  
Activation Method ◽  
Gamma Ray Spectrometry ◽  
Spallation Neutrons

Am-241 sample was irradiated in spallation neutrons produced in ADS setup QUINTA at the JINR in Dubna. The energy was 660 MeV in the proton beam. The incineration study method was based on gamma-ray spectrometry. During the analysis of the spectra, several fission products were identified. Fission product activities yielded the number of fissions. Nevertheless, the lines are assumed to belong to the neutron capture product covered by parasitic Np-238 decay lines. The Np-238 lines as a result of neutron capture by Np-237 made impossible to determine the number of captures in Am-241.

scholarly journals Np-237 transmutation efficiency dependence on beam particle, energy and sample position in QUINTA setup

2019 ◽  
Vol 204 ◽  
pp. 04005
Author(s):  
S. Kilim ◽  
E. Strugalska-Gola ◽  
M. Szuta ◽  
M. Bielewicz ◽  
S. Tyutyunnikov ◽  
...  
Keyword(s):  
Proton Beam ◽  
Gamma Ray ◽  
Fission Products ◽  
Particle Energy ◽  
Gamma Ray Spectrometry ◽  
Beam Particle ◽  
Side Window ◽  
Two Samples ◽  
Sample Position ◽  
Spallation Neutrons

Np-237 samples were irradiated with spallation neutrons produced at the ADS setup QUINTA. Six experiments were carried out at the JINR, in Dubna – one in carbon (C6+), three in deuteron, and two in proton beams. The energy in carbon was 24 GeV, in deuteron – 2, 4 and 8 GeV, respectively, and 660 MeV in the proton beam. In five cases the sample was located in a side window in a lead shield. In one case (660 MeV proton beam) two samples were located on the top of the QUINTA setup, one – on the top of section 2, and the second one – on the top of section 4. The transmutation study method was based on gamma-ray spectrometry. During the analysis of the spectra several fission products and one actinide were identified. Fission product activities yielded the number of fissions. The actinide (Np-238), a result of neutron capture by Np-237, yielded the number of captures. The main goal of this work was to find out if and how the transmutation rate depended on the accelerator beam and sample location during the irradiation.

Charge and mass distribution in 7Li induced fission of 232Th

2002 ◽  
Vol 90 (4) ◽  
Author(s):  
R. Tripathi ◽  
K. Sudarshan ◽  
S. Sodaye ◽  
B. S. Tomar ◽  
G. K. Gubbi ◽  
...  
Keyword(s):  
Mass Distribution ◽  
Cross Sections ◽  
Gamma Ray ◽  
Fission Products ◽  
Gamma Ray Spectrometry ◽  
Induced Fission

SummaryFormation cross sections of about forty fission products have been determined using recoil catcher technique followed by off line gamma-ray spectrometry in

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