In this paper, five barium borate glasses in the chemical composition of $$40\hbox {SiO}_2$$–$$10\hbox {B}_2\hbox {O}_3$$–xBaO–(45-x)CaO–yZnO–zMgO (where $$x = 0, 10, 20, 30$$, and 35 mol$${y}=z=6\,\hbox { mol}\%$$) have been reported for radiation protection applications. Mass attenuation coefficient ($$\mu /\rho$$) was obtained in the photon energy range of 356 keV–2.51 MeV using PHITS code for the proposed glasses. The $$\mu /\rho$$ values generated by PHITS code were verified by using both of FLUKA code and XCOM program. The $$\mu /\rho$$ values were then applied to derive effective atomic number ($${Z}_\mathrm{eff}$$), mean free path (MFP), and half value layer (HVL) for all the glasses involved. Additionally, the fast neutron removal cross sections were calculated for each glass. The results reveal that gamma-shielding properties evolve upon adding BaO content in the glasses. It is found that SBC-B35 glass has superior shielding capacity against gamma rays and fast neutrons as compared with different conventional shielding materials and commercial glasses.

Investigation of barium borate glasses for radiation shielding applications

Structure, optical, gamma-ray and neutron shielding properties of NiO doped B2O3–BaCO3–Li2O3 glass systems

Investigations on borate glasses within SBC-Bx system for gamma-ray shielding applications

https://backend.orbit.dtu.dk/ws/files/199325872/main.pdf

NCrystal: A library for thermal neutron transport

Radiobiological modelling has been a key part of radiation biology and therapy for many decades, and many aspects of clinical practice are guided by tools such as the linear-quadratic model. However, most of the models in regular clinical use are abstract and empirical, and do not provide significant scope for mechanistic interpretation or making predictions in novel cell lines or therapies. In this review, we will discuss the key areas of ongoing mechanistic research in radiation biology, including physical, chemical, and biological steps, and review a range of mechanistic modelling approaches which are being applied in each area, highlighting the possible opportunities and challenges presented by these techniques.

https://www.mdpi.com/2072-6694/11/2/205/pdf

Mechanistic Modelling of Radiation Responses.

We have upgraded many features of the Particle and Heavy Ion Transport code System (PHITS) and released the new version as PHITS3.02. The accuracy and the applicable energy ranges of the code were ...

https://www.tandfonline.com/doi/pdf/10.1080/00223131.2017.1419890

Pi En Tsai

Papers

Features of Particle and Heavy Ion Transport code System (PHITS) version 3.02