Neutron Optics

Andersen, K.H.

doi:10.1007/978-0-387-78693-3_3

Cited by 1 publication

(2 citation statements)

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“…These characteristics have been employed for imaging with neutrons since the earliest days of neutron science, and have been developed into a wide variety of investigation techniques [1][2][3][4]. Chapters of the recent book edited by Anderson, McGreevy and Bilheux provide good background on neutron imaging principles [5][6][7][8][9][10].…”

Section: Jinst 7 P02014mentioning

confidence: 99%

“…Li 6 /ZnS has relatively low neutron capture from Li 6 , but offers high light output (photons/neutron) from photon emission of ZnS [7,83], significantly high when compared with other scintillating materials [84]. Gadox exhibits much higher neutron capture from the very high crosssection of Gd, with 90% absorption in a layer of 10 µm, but also a significantly lower light output.…”

Section: Jinst 7 P02014mentioning

confidence: 99%

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Detection system for microimaging with neutrons

et al. 2012

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A new high-resolution detector setup for neutron imaging has been developed based on infinity-corrected optics with high light collection, combined with customized mounting hardware. The system can easily be installed, handled and fitted to any existing facility, avoiding the necessity of complex optical systems or further improved electronics (CCD). This is the first time optical magnification higher than 1:1 has been used with scintillator-based neutron detectors, as well as the first implementation of infinity corrected optics for neutron imaging, achieving the smallest yet reported effective pixel size of 3.375 µm. A novel transparent crystal scintillator (GGG crystal) has been implemented with neutrons for the first time to overcome limitations of traditional powder scintillators (Li6/ZnS, Gadox). The standardized procedure for resolution measurements with the Modulation Transfer Function (MTF) is summarized to facilitate comparison between instruments and facilities. Using this new detector setup, a resolution of 14.8 µm with a field of view of 6 mm ×6 mm has been achieved while maintaining reasonable count times. These advances open a wide range of new possible research applications and allow the potential for additional future developments.

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