Browse > Article

Measurements of In-phantom Neutron Flux Distribution at the HANARO BNCT Facility  

Kim Myong Seop (Korea Atomic Energy Research Institute)
Park Sang Jun (Korea Atomic Energy Research Institute)
Jun Byung Jin (Korea Atomic Energy Research Institute)
Publication Information
Nuclear Engineering and Technology / v.36, no.3, 2004 , pp. 203-209 More about this Journal
Abstract
In-phantom neutron flux distribution is measured at the HANARO BNCT irradiation facility. The measurements are performed with Au foil and wires. The thermal neutron flux and Cd ratio obtained at the HANARO BNCT facility are $1.19{\times}10^9\;n/cm^{2}s$ and 152, respectively, at 24 MW reactor power. The measured in-phantom neutron flux has a maximum value at a depth of 3 mm in the phantom and then decreases rapidly. The maximum flux is about $25\%$ larger than that of the phantom surface, and the measured value at a depth of 22 mm in the phantom is about a half of the maximum value. In addition, the neutron beam is limited well within the aperture of the neutron collimator. The two-dimensional in-phantom neutron flux distribution is determined. Significant neutron irradiation is observed within 20 mm from the phantom surface. The measured neutron flux distribution can be utilized in irradiation planning for a patient.
Keywords
BNCT; in-phantom neutron flux distribution; HANARO; irradiation facility; Au foil;
Citations & Related Records
연도 인용수 순위
  • Reference
1 K. Tanaka, T. Kobayashi, Y. Sakurai, Y. Nakagawa, S. Endo and M. Hoshi, 'Dose distributions in a human head phantom for neutron capture therapy using moderated neutrons from the 2.5 MeV proton-$^7Li$ reaction or from fission of $^{235}U$', Phys. Med. BioI. 46, 2681 (2001)   DOI   ScienceOn
2 Y. Sakurai and T. Kobayashi, 'Characteristics of the KUR Heavy Water Neutron Irradiation Facility as a neutron irradiation field with variable energy spectra', Nucl. Instr. and Meth. A453, 569 (2002)   DOI   ScienceOn
3 T. Yamamoto, A. Matsumura, K. Yamamoto, H. Kumada, Y. Shibata and T. Nose, 'Inphantom two-dimensional thermal neutron distribution for intraoperative boron neutron capture therapy of brain tumours', Phys. Med. BioI. 47, 2387 (2002)   DOI   ScienceOn
4 M.S. Kim, S.J. Park, B.C. Lee and B.J. Jun, 'Neutron Flux Measurements of Irradiation Facility with BNCT Neutron Filter of Room Temperature', Proceedings of the Korean Nuclear Society Spring Meeting, Korea (2002) (in Korean)   과학기술학회마을
5 G.Y. Lee, S.Y. Hwang and B.J. Jun, 'Development of Mixed Shielding Materials using Li-6 enriched Lithium Carbonate and HDPE for the BNCT Beam Collimator of the HANARO', Proceedings of the Korean Association for Radiation Protection Autumn Meeting, Korea (2001) (in Korean)
6 C.Y. HAN, J.K. KIM, and K.S. CHUNG, 'An Epithermal Neutron Beam Design for BNCT Using $^2H(d,n)^3He$ Reaction', Journal of the Korean Nuclear Society 31(5),512 (1999)   과학기술학회마을
7 B.C. Lee, S.J. Park, M.S. Kim and B.J. Jun, 'BNCT Facility Development in HANARO', Proceedings of the International Group on Research Reactors 9th meeting(IGORR9), Sydney, Australia (2003)
8 S.Y. Hwang, M.S. Kim, B.J. Jun, J.B. Lee, S.J. Park, B.H. Lee, B.C. Lee, J.H. Lee, K.H. Lim and M.J. Kim, 'Installation of BNCT Irradiation Facility and Measurement of Neutron and Gamma-ray Leakages', Proceedings of the Korean Nuclear Society Spring Meeting, Korea (2001) (in Korean)   과학기술학회마을
9 H. Yanagie , T. Tomita, H. Kobayashi, Y. Fujii, Y. Nonaka, Y. Saegusa, K. Hasumi, M. Eriguchi, T. Kobayashi and K. Ono, 'Inhibition of human pancreatic cancer growth in nude mice by boron neutron capture therapy', British Journal of Cancer 75(5),660 (1997)
10 'Advances in Neutron Capture Therapy Volume I, Medicine and Physics', Proceedings of the Seventh International Symposium on Neutron Capture Therapy for Cancer, ed. B. Larsson, J. Crawford and R. Weinreich, Zurich, Switzerland (1996)
11 'Research and Development in Neutron Capture Therapy', Proceedings of the 10th International congress on Neutron Capture Therapy, ed. W. Sauerwein, R. Moss and A. Wittig, Essen, Germany (2002)
12 'Boron-Neutron Capture Therapy for Tumors', edited by H. Hatanaka, Nishimura Co. Ltd., (1986)
13 D.N. Slatkin, 'A History of Boron Neutron Capture Therapy of Brain Tumors', Brain, 114, 1609 (1991)   DOI   ScienceOn