Design of a neutron penumbral-aperture microscope with 10. mu. m resolution

Journal Article · Mon Oct 01 00:00:00 EDT 1990 · Review of Scientific Instruments; (USA)

DOI:https://doi.org/10.1063/1.1141680· OSTI ID:6206127

Ress, D; Lerche, R A; Ellis, R J; Lane, S M ^[1]

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1. Lawrence Livermore National Laboratory, Livermore, CA (USA)

We are currently designing a 10 {mu}m resolution neutron penumbral-aperture microscope to diagnose high-convergence targets at the Nova laser facility. To achieve such high resolution, the new microscope will require developments in three areas. First, we have designed thick penumbral apertures with extremely sharp cutoffs over a useful ({approx}100 {mu}m) field of view; fabrication of such apertures appears feasible using gold electroplating techniques. Second, the limited field of view and required close proximity of the aperture to the target (2 cm) necessitates a durable mounting and alignment system with {plus minus}25 {mu}m accuracy. Finally, a neutron detector containing 160 000 scintillator elements is required. We plan to utilize clad-scintillator elements in this array, bonded together with a high-{ital Z} paint to eliminate recoil-proton crosstalk. Two schemes are under consideration for readout of this large array.

• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6206127
• Journal Information: Review of Scientific Instruments; (USA), Vol. 61:10; ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
LASER-PRODUCED PLASMA
PLASMA DIAGNOSTICS
MICROSCOPES
RESOLUTION
NOVA FACILITY
NEUTRON DETECTORS
DESIGN
ICF DEVICES
LAWRENCE LIVERMORE LABORATORY
SOLID SCINTILLATION DETECTORS
MEASURING INSTRUMENTS
NATIONAL ORGANIZATIONS
PLASMA
RADIATION DETECTORS
SCINTILLATION COUNTERS
THERMONUCLEAR DEVICES
US AEC
US DOE
US ERDA
US ORGANIZATIONS
700102* - Fusion Energy- Plasma Research- Diagnostics