Energy absorption buildup factor studies in water, air and concrete up to 100 mfp using G-P fitting formula

Brar, G.S.; Singh, Karamjit; Singh, Mohinder; Mudahar, Gurmel S.

doi:10.1016/0969-806x(94)90177-5

Cited by 14 publications

(5 citation statements)

References 4 publications

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“…The GP fitting formula is known to be accurate within the estimated uncertainty (< 5%), and Harima carried out an extensive historical review and reported the current gamma photon build-up factors and applications (Harima, 1993). Various researchers have investigated gamma-ray build-up factors in different materials fly-ash, concretes (Brar et al, 1994;Singh et al, 2010;Badiger, 2012a, 2012b), solvents (Parjit et al, 2008), polymers (Tejbir et al, 2010;, human tissues , soils & ceramic (Sandeep and Gurdeep, 2012;Jasbir et al, 2012;Tejbir et al, 2013), and fly ash (Sukhpal et al, 2010), which showed that GP fitting is a very useful method for estimation of exposure and energy absorption build-up factors.…”

Section: Introductionmentioning

confidence: 99%

Gamma-ray exposure build-up factors of some brick materials in the state of Punjab

Singh

Badiger

2013

Radioprotection

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Section: Introductionmentioning

confidence: 99%

Gamma-ray exposure build-up factors of some brick materials in the state of Punjab

Singh

Badiger

2013

Radioprotection

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“…and 0.218 cm respectively. These are lower when compared to 0.417 cm, the value of that of heavy (steel magnetite) concrete [32] at the same energy. This is an interesting result since the density of the heavy concrete of 5.11 g/cm 3 is higher than those of the glass samples.…”

Section: Half-value Layer (Hvl) and Mean Free Path (Mfp)mentioning

confidence: 64%

Investigation of Radiation Shielding Efficacy of Vanadium–Tellurite–Antimonite Semiconducting Glasses

Rammah¹,

Olarinoye²,

El‐Agawany³

et al. 2020

Preprint

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Effects of antimony trioxide (Sb2O3) on neutron and gamma-radiation shielding parameters of tellurite vanadio-antimonite glasses with compositions 40TeO2-(60-x)V2O5-xSb2O3: 0 ≤ xSb2O3 ≤ 10 mol% coded as (TVS0-TVS10) were investigated. The mass attenuation coefficients (MAC) were evaluated using the Monte Carlo simulation code (MCNP-5) and WinXcom program for photon energies in the range of 15 keV to 15 MeV. The SRIM program was used to compute the stopping power and projected range of the charged particles, such as proton and alpha particles, on the investigated glass samples. Based on the theoretically evaluated MAC, some shielding parameters were computed, such as linear attenuation coefficient, electric cross-section, atomic cross-section, effective atomic number, half-value thickness (HVT), and the mean free path. The EXABCal program was applied to predict the level of the photons accumulation in the investigated glass samples (buildup factors). The effective cross-section for fast neutrons was computed theoretically based on the fast neutron effective removal cross-section (ΣR ) for the constituting components. Results revealed that the maximum values of MAC exceed in the range between 28.9-31.3 cm2/g with increasing the Sb2O3 substitution ratio between 0-10 mol %, respectively. In contrast, the HVT values decrease with an increase in the increment of Sb2O3 rate. The maximum (ΣR) was obtained for glass coded TVS0 among the investigated glasses. Results concluded that the higher Sb2O3 concentration in TVS glasses leads to an increase in their capability to apply in several radiation shielding applications.

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“…Park and Jeong (2016) analysed uncertainties in the weighted least squares fitted buildup factors in the point kernel method. Most of the researchers studied the energy absorption buildup factors using the geometric progression method (Kurudirek and Özdemi, 2011;Manohara et al, 2010;Mann et al, 2012;Singh et al, 2018;Mann and Korkut, 2013;Sharaf and Saleh et al, 2015;Sardari et al, 2009;Singh et al, 2015;Manjunatha and Rudraswamy, 2012a, 2012b, 2011aKucuk, 2008;Singh et al, 2010;Kaur et al, 2012;Brar et al, 1994;Brar and Mudahar, 1996;Brar et al, 1998;Manjunatha and Rudraswamy, 2011b). It is also evident from the literature that there are a few researchers who studied energy absorption buildup factors using some other methods such as neural network and MCNP codes (Kucuk et al, 2013;Atak et al, 2015;Kucuk, 2010;Aten Jr., 1978;ANSI/ANS-6.4.3, 1991).…”

Section: Introductionmentioning

confidence: 99%

Semi-empirical formula for photon energy absorption buildup factors of elements and compounds

Manjunatha¹,

Seenappa²,

Sridhar³

2019

IJNEST

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We have formulated a simple semi-empirical formulae for photon energy absorption buildup factors in the energy region 0.015-15 MeV, atomic number range 1≤Z≤92 and for mean free path up to 40 mfp. The results produced by the present formulae agree well with the data available in the literature. This semi-empirical formula may be extended to any compounds/mixtures/biological samples. This semi-empirical formula finds importance in the calculations of buildup factors of any materials which are required for radiation shielding, nuclear engineering, radiotherapy and nuclear medicine.

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Energy absorption buildup factor studies in water, air and concrete up to 100 mfp using G-P fitting formula

Cited by 14 publications

References 4 publications

Gamma-ray exposure build-up factors of some brick materials in the state of Punjab

Gamma-ray exposure build-up factors of some brick materials in the state of Punjab

Investigation of Radiation Shielding Efficacy of Vanadium–Tellurite–Antimonite Semiconducting Glasses

Semi-empirical formula for photon energy absorption buildup factors of elements and compounds

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