Radiographic intensifying screen

Patent · Tue Sep 18 04:00:00 EDT 1984

OSTI ID:5889533

Yokota, K; Nakamura, M

A radiographic intensifying screen having improved modulation transfer function and/or sensitivity. The radiographic intensifying screen of the present invention comprises a support, a phosphor layer formed on the support, a protective film formed on the phosphor layer, wherein the phosphor layer includes a small phosphor particles layer at its support side consisting essentially of small phosphor particles with an average grain size of about 4 ..mu..m or less and a binding agent; and a mixed large and small phosphor particles layer at its protective film side consisting essentially of large phosphor particles with an average grain size ranging from about 7 to 20 ..mu..m, small phosphor particles present in the interstices of the large phosphor particles and with an average grain size of about 4 ..mu..m or less and a binding agent.

• Assignee: Tokyo Shibaura Denki Kabushiki Kaisha (Japan)
• Patent Number(s): US 4472635
• OSTI ID: 5889533
• Country of Publication: United States
• Language: English

Related Subjects

440300* -- Miscellaneous Instruments-- (-1989)
47 OTHER INSTRUMENTATION
BINDERS
CRYSTAL STRUCTURE
DESIGN
FUNCTIONS
GRAIN SIZE
IMAGE INTENSIFIERS
INDUSTRIAL RADIOGRAPHY
MECHANICAL STRUCTURES
MICROSTRUCTURE
MODULATION
PARTICLE SIZE
PHOSPHORS
SENSITIVITY
SIZE
SUPPORTS
TRANSFER FUNCTIONS