Attenuation zone plate

Patent · Tue Nov 06 00:00:00 EST 1984

OSTI ID:5952116

Persyk, D E

An attenuation zone plate for coded-aperture imaging of a radiation source has mercury contained within a wedge-shaped chamber in a plastic housing. Reservoir and relief cavities facilitate filling the housing with mercury and accommodate changes in mercury volume. Lead plates positioned on the perimeter of the housing provide a field of view mask. In one embodiment, the housing cover pivots to vary the wedge angle. Advantages include greater facility in precision manufacturing and greater attenuation pattern flexibility.

• Assignee: Siemens Gammasonics Inc.
• Patent Number(s): US 4481419
• OSTI ID: 5952116
• Resource Relation: Patent File Date: Filed date 29 Oct 1981; Other Information: PAT-APPL-316415
• Country of Publication: United States
• Language: English

Related Subjects

62 RADIOLOGY AND NUCLEAR MEDICINE
ORGANS
NUCLEAR MEDICINE
RADIATION DETECTION
RADIATION DETECTORS
RADIATION SOURCES
DISTRIBUTION
ABSORPTION
ACCURACY
APERTURES
IMAGE PROCESSING
LEAD
MAN
MERCURY
POSITIONING
RADIOACTIVITY
RADIOISOTOPES
ANIMALS
BODY
DETECTION
ELEMENTS
ISOTOPES
MAMMALS
MEASURING INSTRUMENTS
MEDICINE
METALS
OPENINGS
PRIMATES
PROCESSING
VERTEBRATES
550602* - Medicine- External Radiation in Diagnostics- (1980-)