Desain Beam Shaping Assembly (BSA) berbasis D-D Neutron Generator 2,45 MeV untuk Uji Fasilitas BNCT

Desman P. Gulo, Suryasatriya T., Slamet Santosa, Y. Sardjono

Abstract

Boron Neutron Capture Therapy (BNCT) is one of the cancer treatments that are being developed in nowadays. In order to support BNCT treatment for cancer that exists in underneath skin like breast cancer, the facility needs a generator that is able to produce epithermal neutron. One of the generator that is able to produce neutron is D-D neutron generator with 2.45 MeV energy. Based on the calculation of this paper, we found that the total production of neutron per second (neutron yield) from Neutron Generator (NG) by PSTA-BATAN Yogyakarta is 2.55×1011 n/s. The energy and flux that we found is in the range of quick neutron. Thus, it needs to be moderated to the level of epithermal neutron which is located in the interval energy of 1 eV to 10 KeV with 109 n/cm2s flux. This number is the recommendation standard from IAEA. Beam Shaping Assembly (BSA) is needed in order to moderate the quick neutron to the level of epithermal neutron. One part of BSA that has the responsibility in moderating the quick neutron to epithermal neutron is the moderator. The substance of moderator used in this paper is MgF2 and A1F3. The thickness of moderator has been set in in such a way by using MCNPX software in order to fulfill the standard of IAEA. As the result of optimizing BSA moderator, the data obtain epithermal flux with the total number of 4.64×108 n/cm2/s for both of moderators with the thickness of moderator up to 15 cm. At the end of this research, the number of epithermal flux does not follow the standard of IAEA. This is because the flux neutron that is being produced by NG is relatively small. In conclusion, the NG from PSTA-BATAN Yogyakarta is not ready to be used for the BNCT treatment facility for the underneath skin cancer like breast cancer.

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References

Masayori, I., Kenichi, T., Satrou, E., dan Masaharu, H. 2015. Application of an Ultraminiature Thermal Neutron Monitor for Irradiation Field Study of Accelerator-Based Neutron Capture Therapy. Journal of Radiation Research, Hal. 1-6.

Bergaoui, K., Reguigui, N., Gary, C.K., Brown, C., Cremer, J.T., dan Vainionpa, J.H. 2014. Development of New Deuterium-Deuterium (D-D) Neutron Generator for Prompt Gamma-ray Neutron Activation Analysis. Applied Radiation and Isotopes, Vol. 94, Hal. 319-327.

Morcos, H.N., dan Naguib, K. 2014. Production of Optimal Epithermal Neutron Beams for BNCT. Sop Transactions On Applied Physics, Vol. 1, No. 2.

Zafer, A. 2015. Boron Neutron Capture Therapy for Breast Cancer. International Journal of Women’s Health and Reproduction Sciences, Vol. 3, No. 2. Hal. 77.

Fantidis, J.G., Saitioti, E., Bandekas, D.V., dan Vordos, N. 2013. Optimised BNCT Facility Based on a Compact D-D Neutron Generator. International Journal of Radiation Research, Vol. 11, No. 4, Hal. 207-214

Tetsuya, M., Tetsuo, M., dan Koji, N. 2011. Study on Microdosimetry for Boron Neutron Capture Therapy. Progress in Nuclear Science and Technology, Vol. 2, Hal. 242-246.

Farshad, F. 2012. Monte-Carlo Simulation for Beam Shaping Assembly of Boron Neutron Capture Therapy. Proceedings of the 2012 International Conference on Industrial Engineering and Operations Management Istambul. Turkey.

Danial, S., Dariush, S., dan Milad, S. 2012. Evaluation of Design Neutron Filters in BNCT. Open Acces Scientific Reports, Vol.1, Issue 11.

Fatemeh, S. R., dan Seyed, F. M. 2012. Simulation of the BNCT of Brain Tumors Using MCNP Code: Beam Design and Dose Evaluation. Iranian Journal of Medical Physics, Vol. 9, No. 3, Hal. 183-192.

Fatemeh, T. S., Farhad, M., Faezeh, R., dan Fatemeh, S. R. 2014. BSA Optimization and Dosimetric Assessment for an Electron Linac based BNCT of Deep-Seated Brain Tumors. Journal Radioanalytical and Nuclear Chemistry, Vol. 300, Hal. 1167-1174.

Sam, S., dan Nargolwalla. 1973. Activation Analysis with Neutron Generator. Wiley, The University of Machigan, Hal. 15-23.

Djoko, S.P., Prajotno, Slamet, S., Lely, S., Suharni, Taufik, dan Sardjono, Y. 2014. Generator Neutron Kompak Sebagai Sumber Neutron untuk BNCT. Status Boron Neutron Capture Cancer Therapy di Indonesia, Hal. 479-489.

Alejandro, A. B., Santiago, G., Alejandro, A., Valda, Daniel, M. M., dan Andres, J. K. 2010. Experimental and Simulated Characterization of a Beam Shaping Assembly for Accelerator-Based Neutron Capture Therapy (AB-BNCT). VIII Latin American Symposium on Nuclear Physics and Application. American Institute of Physics.

Vainionpaa, J.H., Gary, C.K., Harris, J.L., Piestrup, M.A., Pantell, R.H., dan Jones, G. 2014. Technology and Applications of Neutron Generators Developed by Adelphi Technology, Inc. Physics Procedia, Vol. 60, Hal. 203-211.

Kasesaz, Y., Khalafi, H., dan Rahmani, F. 2013. Optimization of the Beam Shaping Assembly in the D-D Neutron Generators-Based BNCT Using the Response Matrix Method. Applied Radiation and Isotope, Vol. 82, Hal. 55-59.

IAEA. 2001. Current Status of Neutron Capture Therapy. Viena: IAEA, ISSN 1011-4298

Tak, P., dan Lou. 2003. Compact D-D/D-T Neutron Generators and Their Applications. Disertasi. Nuclear Engineering, University of California, Berkeley, Hal. 5-6.

DOI: https://doi.org/10.13057/ijap.v5i02.280

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