Design of thick aperture for fine-resolution neutron penumbral imaging
Compact sources of 14-MeV neutrons have been imaged with a penumbral-coded aperture at a two-point resolution of 80{mu}m. We desire to improve the penumbral-aperture microscope to obtain resolutions as fine as 10{mu}m. In penumbral-coded-aperture imaging, the resolution is ultimately limited by the sharpness of the aperture point-spread function. I present a design for a thick penumbral aperture that provides the desired sharpness over a field of view of 150{mu}m. The point-spread function of these apertures is sufficiently isoplanatic and distortion-free to allow linear reconstruction of complex source distributions. The designs is generally appropriate for similar imaging techniques, such as fine-resolution neutron or gamma-ray pinhole imaging. 5 refs., 5 figs.
- Research Organization:
- Lawrence Livermore National Lab., CA (USA)
- Sponsoring Organization:
- DOE/DP
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 6935010
- Report Number(s):
- UCRL-101179; CONF-8910419--1; ON: DE90012078
- Country of Publication:
- United States
- Language:
- English
Similar Records
Design of a neutron penumbral-aperture microscope with 10-. mu. m resolution
Neutron penumbral aperture images of inertial confinement fusion targets achieve 60 {mu}m resolution (abstract)
Related Subjects
47 OTHER INSTRUMENTATION
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700208* -- Fusion Power Plant Technology-- Inertial Confinement Technology
APERTURES
COHERENT SCATTERING
CONFINEMENT
DESIGN
DIFFRACTION
IMAGE PROCESSING
IMAGES
INERTIAL CONFINEMENT
MICROSCOPY
NEUTRON DIFFRACTION
NEUTRON SOURCES
OPENINGS
PARTICLE SOURCES
PLASMA CONFINEMENT
PLASMA DIAGNOSTICS
PROCESSING
RADIATION SOURCES
RESOLUTION
SCATTERING
SPATIAL RESOLUTION