Gamma‐Radiation Absorption Coefficients of Air in the Energy Range 0.01 to 100 Mev

1958 ◽  
Vol 29 (8) ◽  
pp. 1175-1178 ◽  
Author(s):  
J. W. Allison
Keyword(s):  
Gamma Radiation ◽  
Energy Range ◽  
Radiation Absorption ◽  
Absorption Coefficients

scholarly journals METHOD FOR MEASURING LINEAR GAMMA RADIATION ABSORPTION COEFFICIENTS AT THE ELEKTA AXESSE MEDICAL ACCELERATOR BEAM

REPORTS ◽  
2021 ◽  
Vol 5 (339) ◽  
pp. 126-135
Author(s):  
Y.A. Zaripova ◽  
T.M. Gladkikh ◽  
M.T. Bigeldiyeva ◽  
V.V. Dyachkov ◽  
A.V. Yushkov
Keyword(s):  
Gamma Radiation ◽  
Radiation Absorption ◽  
Absorption Coefficients

Detection of Prompt Gamma Radiation Near the LVR-15 Research Reactor

2019 ◽  
Vol 186 (2-3) ◽  
pp. 244-248
Author(s):  
Ladislav Viererbl ◽  
Vít Klupák ◽  
Antonín Kolros ◽  
Hana Assmann Vratislavská ◽  
Zdena Lahodová
Keyword(s):  
Gamma Radiation ◽  
Energy Range ◽  
Research Reactor ◽  
Reactor Core ◽  
Pulse Height ◽  
Wide Energy Range ◽  
Prompt Gamma ◽  
Reactor Building ◽  
Wide Energy ◽  
Prompt Gamma Radiation

Abstract The paper describes a method of pulse height spectrum measurement in a wide energy range. The LVR‑15 research reactor building was chosen to demonstrate this method. Pulse height spectra were measured on the third floor of the reactor building. Two types of scintillation detectors, NaI (Tl) and a plastic scintillator, were used. The detectors were placed for about 25 m from the reactor core, thus, separated from the primary circuit water in the reactor pool, biological shielding, building wall and other constructional materials. Spectra were measured in a wide energy range from 30 keV to 1000 MeV, in which signals were recorded from natural and man-made radionuclides, prompt gamma radiation and cosmic radiation. Experimental data were collected both while the reactor was in operation and while it was out of operation. This study confirms that differences in these spectra can be detected remotely over relatively large distances from the reactor core by adequately simple detection means.

Beta Backscattering and Gamma Radiation Absorption Characteristics of Carbon Nanoparticles Contained Concrete Composite

2017 ◽  
Vol 17 ◽  
pp. 31-36 ◽  
Author(s):  
B. Gopal Krishna ◽  
Pooja Prasad ◽  
Vibha Sahu ◽  
Jyoti Prabha Sahu ◽  
Akansha Agarwal
Keyword(s):  
Gamma Radiation ◽  
Carbon Nanoparticles ◽  
Power Plants ◽  
Gamma Ray ◽  
Nuclear Research ◽  
Radiation Absorption ◽  
Particle Accelerators ◽  
Building Structures ◽  
Back Scattering ◽  
Absorption Characteristics

Concrete is a very important composite for making different building structures to absorb different levels of radiation. Nuclear power plants, nuclear research reactors, particle accelerators and linear accelerator in medical institution use concrete in building construction. Nanoparticles or nanocrystals have different properties than their bulk counterparts. The gamma radiation absorption characteristics and beta back scattering by nanoparticles is also different than their counterparts. In this paper, carbon nanoparticles are mixed in the concrete composite during its preparation. The concrete composite with carbon nanoparticles as admixture were analyzed to provide radiation protection. The gamma radiation absorption characteristics and beta back scattering in ordinary and carbon nanoparticles contained concretes have been studied by GM counter. The results show that using carbon nanoparticles as an admixture in the concrete is one of the solutions for gamma ray shielding and beta back scattering. Therefore, it is good to use carbon nanoparticles as admixtures in concrete composites for beta and gamma radiation scattering and absorption respectively.

Radiation absorption coefficients in arc plasmas

2004 ◽  
Vol 54 (S3) ◽  
pp. C759-C765 ◽  
Author(s):  
V. Aubrecht ◽  
M. Bartlová
Keyword(s):  
Radiation Absorption ◽  
Absorption Coefficients ◽  
Arc Plasmas

scholarly journals Gamma?Radiation Absorption Coefficients of Various Materials Allowing for Bremsstrahlung and Other Secondary Radiations

1961 ◽  
Vol 14 (4) ◽  
pp. 443 ◽  
Author(s):  
JW Allison
Keyword(s):  
Absorption Coefficient ◽  
Energy Loss ◽  
Basic Assumption ◽  
Radiation Energy ◽  
Radiation Absorption ◽  
Annihilation Radiation ◽  
Total Absorption ◽  
Absorption Coefficients ◽  
Radiation Energy Loss ◽  
Total Absorption Coefficient

Existing calculations of the total absorption coefficient are generally based on the assumption that all the primary radiation energy which is converted into Comptonscattered radiation escapes from the material without significant absorption. This paper extends this basic assumption to include fluorescent and annihilation radiation and bremsstrahlung, and new values of the photoelectric, Compton, pair production, and total absorption coefficients are determined in the energy range O� 01-100 MeV for hydrogen, nitrogen, oxygen, argon, aluminium, iron, lead, air, and water. For comparison purposes revised values of the total absorption coefficient, allowing for the Compton radiation energy loss only, are also determined for these materials, using the most recent data for the component coefficients.

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