A new compact, high sensitivity neutron imaging system

Journal Article · Mon Oct 15 00:00:00 EDT 2012 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4739314· OSTI ID:22093911

Caillaud, T.; Landoas, O.; Briat, M.; Rosse, B.; Thfoin, I.; Philippe, F.; Casner, A.; Bourgade, J. L.; Disdier, L. ^[1]; Glebov, V. Yu.; Marshall, F. J.; Sangster, T. C. ^[2]; Park, H. S.; Robey, H. F.; Amendt, P. ^[3]

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1. CEA, DAM, DIF,F-91297 Arpajon (France)
2. Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623-1299 (United States)
3. Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)

We have developed a new small neutron imaging system (SNIS) diagnostic for the OMEGA laser facility. The SNIS uses a penumbral coded aperture and has been designed to record images from low yield (10{sup 9}-10{sup 10} neutrons) implosions such as those using deuterium as the fuel. This camera was tested at OMEGA in 2009 on a rugby hohlraum energetics experiment where it recorded an image at a yield of 1.4 Multiplication-Sign 10{sup 10}. The resolution of this image was 54 {mu}m and the camera was located only 4 meters from target chamber centre. We recently improved the instrument by adding a cooled CCD camera. The sensitivity of the new camera has been fully characterized using a linear accelerator and a {sup 60}Co {gamma}-ray source. The calibration showed that the signal-to-noise ratio could be improved by using raw binning detection.

• OSTI ID: 22093911
• Journal Information: Review of Scientific Instruments, Vol. 83, Issue 10; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CALIBRATION
CHARGE-COUPLED DEVICES
COBALT 60
DEUTERIUM
GAMMA DETECTION
LASER RADIATION
LINEAR ACCELERATORS
NEUTRON DETECTION
NEUTRONS
RESOLUTION
SENSITIVITY
SENSORS
SIGNAL-TO-NOISE RATIO
TARGET CHAMBERS