Tạp chí Khoa học, T. 14, S. 9 (2017)

Cỡ chữ:  Nhỏ  Vừa  Lớn

A study on determination of mass attenuation coefficient, effective atomic number and electron density of some materials using Monte Carlo method

Ho Thi Tuyet Ngan, Hoang Duc Tam Hoang Duc Tam

Tóm tắt

This work aims to calculate the effective atomic number and electron density by Monte Carlo method. In previous studies, the most widely used solution is to use the transmission method with the narrow gamma-ray beam. In the approach of this work, the gamma-ray beam after going through material is uncollimated to recording by NaI(Tl) detector. To do this, the inner diameter of detector collimator was enlarged with the aim of decreasing the strengthen of radioactive source. The obtained results were compared with NIST data and the experimental values which yield the maximum deviation of 9.05% and 3.43%, respectively. These results show the promising approach in determining the features of material.

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Tạp chí của Trường Đại học Sư phạm Thành phố Hồ Chí Minh ; ISSN: 1859 -3100