Gamma-ray imaging with a time-modulated random coded aperture.
| Autor: | Wang D; School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, China., Ruskov IN; Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, Moscow, Russian Federation., Hu H; School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, China., Kopatch YN; Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, Moscow, Russian Federation., Grozdanov DN; Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, Moscow, Russian Federation., Fedorov NA; Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, Moscow, Russian Federation., Aliyev FA; Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, Moscow, Russian Federation. |
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| Jazyk: | angličtina |
| Zdroj: | The Review of scientific instruments [Rev Sci Instrum] 2019 Jan; Vol. 90 (1), pp. 015107. |
| DOI: | 10.1063/1.5050211 |
| Abstrakt: | In this article, we present a new industrial gamma-ray imaging system. This system takes advantage of a time-modulated random coded aperture (TMRCA). The gamma-ray detector coupled to the TMRCA can be position-sensitive or non-position-sensitive. The TMRCA imaging system could offer the ability to identify radioactive sources without losing spatial resolution. With a non-position-sensitive BGO detector, a prototype TMRCA imaging system was constructed. The prototype system was investigated with two gamma-ray sources ( 137 Cs, 60 Co) and a 238 Pu-Be neutron source, which was placed in a paraffin moderator to produce an extended source. The experimental results suggest that the TMRCA imaging system offers the opportunity to achieve high spatial-energy resolution cost-effectively for high-energy gamma rays. |
| Databáze: | MEDLINE |
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