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Projection imaging with ultracold neutrons
- Source :
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 1003:165306
- Publication Year :
- 2021
- Publisher :
- Elsevier BV, 2021.
-
Abstract
- Ultracold neutron (UCN) projection imaging is demonstrated using a boron-coated back-illuminated CCD camera and the Los Alamos UCN source. Each neutron is recorded through the capture reactions with 10B. By direct detection at least one of the byproducts α , 7Li and γ (electron recoils) derived from the neutron capture and reduction of thermal noise of the scientific CCD camera, a signal-to-noise improvement on the order of 1 0 4 over the indirect detection has been achieved. Sub-pixel position resolution of a few microns is confirmed for individual UCN events. Projection imaging of test objects shows a spatial resolution less than 100 μ m by an integrated UCN flux one the order of 10 6 cm−2. The bCCD can be used to build UCN detectors with an area on the order of 1 m 2 . The combination of micrometer scale spatial resolution, low readout noise of a few electrons, and large area makes bCCD suitable for quantum science of UCN.
- Subjects :
- Physics
Nuclear and High Energy Physics
010308 nuclear & particles physics
business.industry
Detector
Electron
01 natural sciences
Noise (electronics)
Neutron capture
Optics
0103 physical sciences
Ultracold neutrons
Neutron
010306 general physics
business
Projection (set theory)
Instrumentation
Image resolution
Subjects
Details
- ISSN :
- 01689002
- Volume :
- 1003
- Database :
- OpenAIRE
- Journal :
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
- Accession number :
- edsair.doi.dedup.....163fa3201468a65e011079cd4df63f9f