Congratulations to the PCELL Research Laboratory on the publication of research article in the journal Particles.

Congratulations to the PCELL Research Laboratory on the publication of research article in the journal Particles.

• Localized Multilayer Shielding of an Electron Beam Irradiation Station for FLASH Radiotherapy Experiments
  • Kanlayaporn Kongmali, Pittaya Apiwattanakul, Phanthip Jaikeaw and Sakhorn Rimjaem*Particles2025, 8(2), 51.
  • Link: https://doi.org/10.1088/1742-6596/2687/3/032020

This research focuses on the design of a targeted radiation shielding system for FLASH Radiotherapy (FLASH-RT) experiments conducted at the Electron Accelerator Laboratory of Chiang Mai University (PBP-CMU). The design utilizes the GEANT4 program, a Monte Carlo simulation tool, to model radiation generated by electron beams with energies ranging from 6 to 25 MeV. The shielding system consists of multiple layers of protective materials, including lead, iron, polyethylene, and concrete, effectively reducing X-ray, gamma-ray, and neutron radiation. Simulation results demonstrate that this shielding system can reduce radiation levels in public areas to below 1 mSv/year and within controlled areas to within 20 mSv/year. B-factor analysis further highlights the system’s efficiency in attenuating low-energy gamma radiation and indicates the necessity for thicker shielding materials to mitigate high-energy radiation. This design effectively minimizes radiation leakage, ensuring the safety of personnel and the environment during FLASH-RT operations. Future plans include the construction and experimental testing of the shielding system.