Beams Characteristic in Water Phantom Irradiation by Epithermal Neutron Beam from Double Layer Beam Shaping Assembly

  • Bilalodin Bilalodin
  • Kusminarto Kusminarto Department of Physics, Faculty of Mathematic and Natural Science, Gajah Mada University, Yogyakarta
  • Arief Hermanto Department of Physics, Faculty of Mathematic and Natural Science, Gajah Mada University, Yogyakarta
  • Yohannes Sardjono Centre for Accelerator Science and Technology, National Nuclear Energy Agency. Yogyakarta, Indonesia
Keywords: DLBSA, beam characteristics, dose rate, phantom


A Double Layer Beam Shaping Assembly (DLBSA) is designed to produce epithermal neutrons for BNCT purposes. The MCNPX  program is utilized as the software to design the DLBSA and phantom. Distribution of epithermal neutron and gamma flux  in the DLBSA and phantom and absorbed dose in phantom  are computed using the Particle and Heavy Ion Transport System (PHITS) program. Testing results of epithermal neutron beams irradiation on water phantom shows that epithermal neutrons are thermalized and penetrate the phantom up to 12 cm in depth. Maximum value of  absorbed dose  is  2 x 10-3 Gy  at a depth of 2 cm  in  phantom.


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How to Cite
Bilalodin, B., Kusminarto, K., Hermanto, A., & Sardjono, Y. (2020). Beams Characteristic in Water Phantom Irradiation by Epithermal Neutron Beam from Double Layer Beam Shaping Assembly. Indonesian Journal of Physics and Nuclear Applications, 5(1), 18-22.