This research aimed to determine the potential of barite concrete as a neutron radiation shielding material in the development of boron neutron capture therapy, by obtaining its neutron attenuation coefficient. Barite concrete samples were supplied by the Center of Accelerator Science and Technology in Yogyakarta, Indonesia. The experiment consisted of two parts, namely density analysis and determination of the neutron attenuation coefficient. For the latter, plutonium-beryllium was used as the neutron source, while a high purity germanium detector was used to measure the neutron radiation level. The results showed that barite concrete with a 2130 kg.m–3 density had a neutron attenuation coefficient of 0.0871 cm–3.
Abdullah Y, Yusof MR, Muhamad A, Samsu Z, Abdullah NA. 2010. Cement-boron carbide concrete as radiation shielding material. J Nucl Relat Technol. 7(2):74–79.
Amirabadi EA, Salimi M, Ghal-Eh N, Etaati GR, Asadi H. 2013. Study of neutron and gamma radiation protective shield. Int J Innovation Appl Stud. 3(4):1079–1085. http://www.ijias.issr-journals.org/abstract.php?article=IJIAS-13-156-06.
Çullu M, Ertaş H. 2016. Determination of the effect of lead mine waste aggregate on some concrete properties and radiation shielding. Constr Build Mater. 125:625–631. doi:10.1016/j.conbuildmat.2016.08.069.
Mesbahi A, Alizadeh G, Seyed-Oskoee G, Azarpeyvand AA. 2013. A new barite–colemanite concrete with lower neutron production in radiation therapy bunkers. Ann Nucl Energy. 51:107–111. doi:10.1016/J.ANUCENE.2012.07.039.
Picha R, Channuie J, Khaweerat S, Liamsuwan T, Promping J, Ratanatongchai W, Silva K, Wonglee S. 2015. Gamma and neutron attenuation properties of barite-cement mixture. J Phys Conf Ser. 611(1):012002. doi:10.1088/1742-6596/611/1/012002.
Sardjono Y. 2015. Pengenalan fisika neutron – prinsip dasar: desain boron neutron capture therapy (BNCT) [Introduction to neutron physics – the basic principle: boron neutron capture therapy (BNCT)]. 1st edition. Yogyakarta: Galang Press.
World Nuclear Association. 2010. Nuclear radiation and health effects. London: World Nuclear Association. http://www.world- nuclear.org/information- library/safety-and-security/radiation-and-health/nuclear-radiation-and-health-effects.aspx.