The ARIES team has just completed the detailed design of ARIES-ACT-1 with aggressive physics and advanced SiC technology. Accurate neutronic characterizations of ARIES-ACT-1 are essential in determining its operational nuclear parameters. The neutron wall loading (NWL), tritium breeding ratio (TBR), and nuclear heating distribution are parameters that must be determined for tritium self-sustain...

background: the potential hazards of exposure to radiation from radon have been of great concern worldwide, as it is associated with an increased risk of lung cancer. radon (222rn) and its progeny are the main sources of radioactivity in the environment. the half-life of 222rn (3.82 days) is long enough for it to diffuse into and build up in homes. 220rn or thoron from the 232th series, and 219...

background: palladium-103 (103pd) is a brachytherapy source for cancer treatment. the monte carlo codes are usually applied for dose distribution and effect of shieldings. monte carlo calculation of dose distribution in water phantom due to a med3633 103pd source is presented in this work. materials and methods: the dose distribution around the 103pd model med3633 located in the center of 30×30...

The Low Energy Neutron Source (LENS) is based on Be(p,xn) reactions at proton energy up to 13 MeV. Its novel design employs a cylindrical light water reflector/moderator surrounding the Be target primary neutron source and a solid CH4 cold neutron moderator downstream from the Be target that is coupled to the reflector. The design of the Target/Moderator/Reflector (TMR) assembly was optimized w...

This work examines a mobile, land-based micro-reactor concept based on the mobile low power reactor prototype 1 (ML-1). A detailed model of ML-1 was created in MCNP® and compared with experimental data from multiple demonstrations conducted between 1962 1965. The computed values agree data, evidenced by an obtained keff 1.10705 ± 0.00104 versus expected value 1.102 0.007. cost-estimate $71.1 mi...

A Bremsstrahlung converter for medical apparatuses sterilization has been designed using tantalum and stainless-steel frame a high energy electron accelerator operating at an incident of 7.5 MeV. Optimization the x-ray spectra is investigated in this paper by adding beam hardening filter from copper, aluminum, stainless steel. The MCNP code used to simulate particle transport through design. To...