NDLI: Scintillation properties of and proton-induced effect on CdWO$

Content Provider	Springer Nature Link
Author	Chae, G. H. Kim, H. J. Kim, H. O. Kang, Sang Jun Moon, Myung Kook
Copyright Year	2013
Abstract	The scintillation properties of CdWO$_{4}$ (CWO) crystals have been studied to develop an X-ray scanner for a cargo container. The CWO crystal is composed of higher effective-Z-number materials, and it has a high density, therefore, a high detection efficiency for X-rays and γ-rays is expected. We selected various CWO crystals made in Russia (Novosibirsk) and China for comparison. The X-ray luminescence and the scintillation properties were studied with various sizes (4 × 4 × 30 mm$^{3}$, 4 × 7 × 30 mm$^{3}$ and 4 × 12 × 30 mm$^{3}$) for polished and unpolished crystals. The transmittance of the CWO crystals was found to be 75% in the visible range. The X-ray emission spectrum of CWO crystals showed a peak at 480 nm. The scintillation properties, like the decay time, the energy resolution and the light yield, were measured and compared by using gamma source excitation. All samples exhibited similar decay times, with a value of 12 µs. The light yield and the energy resolution of the Russian samples were found to be significantly better than those of the Chinese samples. The proton response and radiation hardness of the CWO crystal were studied by using the 45-MeV proton beam from the MC-50 cyclotron at the KIRAMS (Korea Institute of Radiological and Medical Science).
Starting Page	1455
Ending Page	1460
Page Count	6
File Format	PDF
ISSN	03744884
Journal	Journal of the Korean Physical Society
Volume Number	63
Issue Number	7
e-ISSN	19768524
Language	English
Publisher	Springer Netherlands
Publisher Date	2013-10-23
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Scanner X-ray luminescence Proton beam Theoretical, Mathematical and Computational Physics Scintillation property CdWO$_{4}$ Physics Particle and Nuclear Physics
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy

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