Gamma and neutron attenuation properties of barite-cement mixture

International Nuclear Science and Technology Conference 2014

Picha, R.^1 ; Channuie, J.^1 ; Khaweerat, S.^1 ; Liamsuwan, T.^1 ; Promping, J.^1 ; Ratanatongchai, W.^1 ; Silva, K.^1 ; Wonglee, S.^1

Thailand Institute of Nuclear Technology, Ongkharak, Nakorn Nayok, Thailand^1

关键词: Attenuation coefficient;    Cement mixtures;    Gamma source;    Neutron attenuation;    Photon and neutron radiations;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/611/1/012002/pdf
DOI  :  10.1088/1742-6596/611/1/012002

来源: IOP

【 摘 要 】

For the neutron radiography facility renovation plan at Thai Research Reactor, mixed barite-concrete blocks of different compositions were tested for their photon and neutron radiation attenuation properties.60Co and137Cs isotopes were used as the gamma sources;241Am-Be was used as the neutron source. For detection, a scintillation counter and a BF3tube were used. The intensities at various energies were measured and attenuation coefficients were calculated. Samples of barite mixture were analyzed with X-ray. The results involving the effects of barite are reported and discussed.