Optical, magnetic characterization, and gamma-ray interactions for borate glasses using XCOM program

Abstract

In the present study, the optical characterization of borate glasses with composition 35Li 2 O − 10ZnO − 55B 2 O 3 − xMnO 2 : x = 0, 0.5, 1.0, 1.5, and 2.0 wt% has been investigated. The absorption spectra measurements within the wavelength domain 200-1000 nm have been carried out. The optical energy gap of the investigated samples using the absorption spectrum fitting (ASF) model has been calculated. The molar refraction, molar polarizability, reflection loss, optical transmission for the samples were estimated. The metallization criterion, dielectric constant, refractive index, and energy band metallization criterion for the studied glasses were estimated. Magnetic property measurements for all glass samples were carried out at 300 K. Additionally, the prospects of gamma-ray interactions with the investigated glasses have been achieved through studying the total mass attenuation, coherent, Compton, photoelectric, and pair production interactions at photon energy in the range of 0.356-1.330 MeV. Results reveal that the optical and magnetic properties of the investigated glasses change with changing the MnO 2 concentration. Studied glasses can be used as a candidate for optical fiber and optical devices application. In the other hand, at lower gamma photon energy range, the photoelectric absorption dominates with the glasses, while as the energy increases, the probability of Compton scattering and pair production become the most dominate interactions.

Study on Radiation Shielding Characteristics of Refractory High Entropy Alloys by EpiXS Code

“…According to the chemical compositions of RHEAs (taken from the literature and given in Table I [ [13][14][15][30][31][32]), and on the basis of knowledge about the alloys, the radiation-matter interaction parameters are determined. Changes in the calculated MAC values versus photon energies (1 keV-1 GeV) are presented in Fig.…”

“…The XCOM software [27] was developed in order to estimate MAC values or photon interaction cross-sections of a single element, compound, or composite mixture in a wide energy region of 1 keV-100 GeV. Recently, many researchers have used the XCOM code for the purpose of calculating the MAC values of the shielding materials [18,[28][29][30].…”