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

doi:10.21203/rs.3.rs-104534/v1

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

https://doi.org/10.21203/rs.3.rs-104534/v1

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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 (Σ_R ) 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 (Σ_R) 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.

Ceramics

Vanadio-tellurite glasses

Shielding properties

Monte Carlo simulation

SRIM

Table 1: Code, chemical composition, and density of the 40TeO₂-(60-x)V₂O₅-xSb₂O₃ (where x= 0, 5, 8, and 10 mol%) glasses.

X mol%	Sample code	Composition, (mol%)			Density, ρ (g/cm³) ±0.040 [27]	Molar volume, V^molar (cm³/mol) ±0.040 [27]	Optical energy gap, E_gap (eV) ±0.02 [27]
X mol%	Sample code	TeO₂	V₂O₅	Sb₂O₃	Density, ρ (g/cm³) ±0.040 [27]	Molar volume, V^molar (cm³/mol) ±0.040 [27]	Optical energy gap, E_gap (eV) ±0.02 [27]
0	TVS0	40	60	0	3.710	46.623	1.74
5	TVS5	40	55	5	3.778	47.235	1.98
8	TVS8	40	52	8	3.848	47.230	1.72
10	TVS10	40	50	10	3.922	46.898	1.37

Table 2: comparison between the MCNP and WinXCOM MAC

Energy (MeV)	Mass attenuation coefficient (cm2 g-1)
	TVS0			TVS5			TVS8			TVS10
	MCNP	WINXCOM	Diff	MCNP	WINXCOM	Diff	MCNP	WINXCOM	Diff	MCNP	WINXCOM	Diff
0.015	29.700	29.700	0.000	30.990	31.000	0.033	31.727	31.730	0.011	32.203	32.210	0.021
0.030	4.385	4.424	0.886	4.595	4.647	1.126	4.715	4.773	1.227	4.793	4.856	1.321
0.050	4.121	3.930	4.633	5.040	4.533	10.051	5.470	4.877	10.849	4.887	5.100	4.351
0.300	0.123	0.124	0.202	0.127	0.127	0.186	0.129	0.130	0.166	0.131	0.131	0.188
0.500	0.087	0.087	0.159	0.087	0.087	0.175	0.088	0.088	0.186	0.088	0.088	0.193
0.800	0.067	0.067	0.166	0.067	0.067	0.175	0.067	0.067	0.173	0.067	0.067	0.169
1.000	0.059	0.060	1.012	0.059	0.060	1.120	0.059	0.059	1.177	0.059	0.059	1.229
3.000	0.035	0.036	0.399	0.035	0.036	0.411	0.036	0.036	0.437	0.036	0.036	0.441
5.000	0.030	0.031	0.279	0.031	0.031	0.262	0.031	0.031	0.276	0.031	0.031	0.289
8.000	0.029	0.029	0.191	0.029	0.029	0.202	0.030	0.030	0.193	0.030	0.030	0.181
10.000	0.028	0.028	0.191	0.029	0.029	0.173	0.030	0.030	0.184	0.030	0.030	0.190
15.000	0.029	0.029	0.148	0.030	0.030	0.164	0.031	0.031	0.141	0.031	0.031	0.135

Table 3: Partial density, and fast neutron removal cross-sections of glasses.

Glass code	Partial density (g/cm³)				Density (g/cm³)	Σ_R (cm^-1)	Σ_R/ρ (cm²g^-1)
Glass code	Te	V	Sb	O	Density (g/cm³)	Σ_R (cm^-1)	Σ_R/ρ (cm²g^-1)
TVS0	1.0947	1.3112	-	1.304	3.71	0.0954	0.0257
TVS5	1.0806	1.1864	0.2577	1.2533	3.778	0.094	0.0249
TVS8	1.0807	1.1218	0.4125	1.233	3.848	0.0939	0.0244
TVS10	1.0884	1.0863	0.5192	1.2281	3.922	0.0945	0.0241

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

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