Characterization of a neutron imaging setup at the INES facility
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- 作者：E.A. Durisi ; L. Visca ; F. Albertin ; R. Brancaccio ; J. Corsi ; G. Dughera ; W. Ferrarese ; A. Giovagnoli ; N. Grassi ; F. Grazzi ; A. Lo Giudice ; G. Mila ; M. Nervo ; N. Pastrone ; F. Prino ; L. Ramello ; A. Re ; A. Romero ; R. Sacchi ; F. Salvemini ; et al.
- 关键词：Neutron imaging ; Metal alloy ; Cultural heritage
- 刊名：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
- 出版年：2013
- 出版时间：21 October, 2013
- 年：2013
- 卷：726
- 期：Complete
- 页码：31-36
- 全文大小：3205 K
文摘
The Italian Neutron Experimental Station (INES) located at the ISIS pulsed neutron source (Didcot, United Kingdom) provides a thermal neutron beam mainly used for diffraction analysis. A neutron transmission imaging system was also developed for beam monitoring and for aligning the sample under investigation. Although the time-of-flight neutron diffraction is a consolidated technique, the neutron imaging setup is not yet completely characterized and optimized. In this paper the performance for neutron radiography and tomography at INES of two scintillator screens read out by two different commercial CCD cameras is compared in terms of linearity, signal-to-noise ratio, effective dynamic range and spatial resolution. In addition, the results of neutron radiographies and a tomography of metal alloy test structures are presented to better characterize the INES imaging capabilities of metal artifacts in the cultural heritage field.