1. First results with the ANET Compact Thermal Neutron Collimator
- Author
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Marco Costa, Oriol Sans-Planell, Saverio Altieri, V. Monti, Roberto Bedogni, Lorenzo Visca, E. Durisi, Francesco Grazzi, L. Menzio, and E. Mafucci
- Subjects
Accelerator Physics (physics.acc-ph) ,Physics ,Physics - Instrumentation and Detectors ,business.industry ,Neutron imaging ,FOS: Physical sciences ,Field of view ,Collimator ,Instrumentation and Detectors (physics.ins-det) ,Neutron temperature ,Collimated light ,TRIGA ,law.invention ,Optics ,law ,Neutron source ,Physics - Accelerator Physics ,Neutron ,Instrumentation for neutron sources ,Neutron radiography ,Nuclear Experiment (nucl-ex) ,business ,Nuclear Experiment ,Instrumentation ,Mathematical Physics - Abstract
This paper presents the first determination of the spatial resolution of the ANET Compact Neutron Collimator, obtained with a measuring campaign at the LENA Mark-II TRIGA reactor in Pavia. This novel collimator consists of a sequence of collimating and absorbing channels organised in a chessboard-like geometry. It has a scalable structure both in length and in the field of view. It is characterized by an elevated collimation power within a limited length. Its scalability and compactness are added values with respect to traditional collimating system. The prototype tested in this article is composed of 4 concatenated stages, each 100mm long, with a channel width of 2.5mm, delivering a nominal L/D factor of 160. This measuring campaign illustrates the use of the ANET collimator and its potential application in neutron imaging for facilities with small or medium size neutron sources., Comment: 9 pages, 8 figures, prepared for submission to JINST
- Published
- 2021