Radiative capture of neutrons by the 5.2 eV resonance in 109Ag

1969 ◽  
Vol 47 (10) ◽  
pp. 1133-1142 ◽  
Author(s):  
H. Ing ◽  
J. J. Gameson ◽  
J. D. King ◽  
H. W. Taylor
Keyword(s):  
Gamma Rays ◽  
Radiative Capture ◽  
Pulse Height ◽  
Thermal Neutrons ◽  
Pulse Height Analyzer ◽  
Gamma Transitions ◽  
Good Agreement

The reaction 109Ag(n,γ)110Ag has been studied through the capture of neutrons by the 5.2 eV resonance in 109Ag. The gamma rays were observed with a 33 cm3 Ge(Li) detector and a 2048-channel pulse-height analyzer. A level diagram spanning the range 0-2 MeV is proposed for 110Ag and compared with the level diagram based on the gamma transitions produced by capture of thermal neutrons. The distribution of partial radiative widths was obtained and was found to be in good agreement with the Porter–Thomas distribution.

scholarly journals DETERMINATION OF THE URANIUM CONTENT IN SOME SOIL SAMPLES FROM AJAOKUTA, KOGI STATE: NIGERIA

2019 ◽  
Vol 7 (9) ◽  
pp. 252-258
Author(s):  
Aruwa Arome ◽  
Philibus Musa Gyuk ◽  
Achor Mathias Ogwo ◽  
Isah Suleiman
Keyword(s):  
Activity Concentration ◽  
Pulse Height ◽  
Uranium Content ◽  
Mean Value ◽  
Soil Samples ◽  
Pulse Height Analyzer ◽  
The World ◽  
The Mean ◽  
Good Agreement

This work present the Uranium (238U) content in soil samples collected in Ajaokuta from some villages was been determined. The measurement of the soil Uranium activity concentration were made using a multi–channel pulse height analyzer (Camberra series 10 plus) coupled to a 76.2mm x 76.2mm NaI (TI) scintillation detector. 2.93)The mean Uranium content in the analyzed samples was found to be (44.26 Bq/kg which is higher than the world mean value of 35Bq/kg. The results were in good agreement with others for soils from region which is considered as normal or slightly high in radioactivity level.

scholarly journals CALCULATION OF MULTIPLE MIXING RATIOS OF GAMMA RAYS FROM (_60^(142-150))Nd(n,n^ˊ )(_60^(142-150))Nd INTERACTION

2019 ◽  
Vol 7 (8) ◽  
pp. 39-50
Author(s):  
Taghreed Abdull-jabbar Younis ◽  
Adel Kamel Shbeeb
Keyword(s):  
Gamma Rays ◽  
Experimental Error ◽  
Energy Levels ◽  
Experimental Results ◽  
Mixing Ratios ◽  
Multiple Mixing ◽  
Statistical Tensor ◽  
Gamma Transitions ◽  
Good Agreement

In the current research, multiple mixing ratios of gamma -transitions of the energy levels  isotopes populated in  interaction are calculated using the constant statistical tensor (CST) method. The results obtained are, in general, in good agreement or consistent, within the experimental error, with the results published in the previously researches. Existing discrepancies result from inaccuracies in the experimental results of previous works. The current results confirm the validity of the constant statistical tenser method of calculating the values of mixing ratios and its predictability of errors in experimental results.

A logarithmic, constant percent error, pulse height analyzer

1959 ◽  
Vol 5 (2) ◽  
pp. 120-123 ◽  
Author(s):  
A. Alberigi-Quaranta ◽  
C. Bernardini ◽  
C. Infante ◽  
I.F. Quercia
Keyword(s):  
Pulse Height ◽  
Pulse Height Analyzer ◽  
Percent Error

Pulse‐Height Analyzer for Neuro‐Physiological Applications

1959 ◽  
Vol 30 (12) ◽  
pp. 1102-1106 ◽  
Author(s):  
R. M. Littauer ◽  
C. Walcott
Keyword(s):  
Pulse Height ◽  
Pulse Height Analyzer

scholarly journals Simulation of Neutron/Self-Emitted Gamma Attenuation and Effects of Silane Surface Treatment on Mechanical and Wear Resistance Properties of Sm2O3/UHMWPE Composites

Polymers ◽  
2021 ◽  
Vol 13 (19) ◽  
pp. 3390
Author(s):  
Donruedee Toyen ◽  
Yupadee Paopun ◽  
Dararat Changjan ◽  
Ekachai Wimolmala ◽  
Sithipong Mahathanabodee ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Wear Resistance ◽  
Surface Treatment ◽  
Gamma Rays ◽  
Surface Hardness ◽  
Thermal Neutrons ◽  
Simulation Code ◽  
Neutron Shielding ◽  
Wear Rates ◽  
Uhmwpe Composites

This work reports on the simulated neutron and self-emitted gamma attenuation of ultra-high-molecular-weight polyethylene (UHMWPE) composites containing varying Sm2O3 contents in the range 0–50 wt.%, using a simulation code, namely MCNP-PHITS. The neutron energy investigated was 0.025 eV (thermal neutrons), and the gamma energies were 0.334, 0.712, and 0.737 MeV. The results indicated that the abilities to attenuate thermal neutrons and gamma rays were noticeably enhanced with the addition of Sm2O3, as seen by the increases in µm and µ, and the decrease in HVL. By comparing the simulated neutron-shielding results from this work with those from a commercial 5%-borated PE, the recommended Sm2O3 content that attenuated thermal neutrons with equal efficiency to the commercial product was 11–13 wt.%. Furthermore, to practically improve surface compatibility between Sm2O3 and the UHMWPE matrix and, subsequently, the overall wear/mechanical properties of the composites, a silane coupling agent (KBE903) was used to treat the surfaces of Sm2O3 particles prior to the preparation of the Sm2O3/UHMWPE composites. The experimental results showed that the treatment of Sm2O3 particles with 5–10 pph KBE903 led to greater enhancements in the wear resistance and mechanical properties of the 25 wt.% Sm2O3/UHMWPE composites, evidenced by lower specific wear rates and lower coefficients of friction, as well as higher tensile strength, elongation at break, and surface hardness, compared to those without surface treatment and those treated with 20 pph KBE903. In conclusion, the overall results suggested that the addition of Sm2O3 in the UHMWPE composites enhanced abilities to attenuate not only thermal neutrons but also gamma rays emitted after the neutron absorption by Sm, while the silane surface treatment of Sm2O3, using KBE903, considerably improved the processability, wear resistance, and strength of the composites.

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