Method and apparatus for producing tomographic images

Patent · Tue Feb 28 04:00:00 EST 1989

OSTI ID:6215577

Annis, M

A device useful in producing a tomographic image of a selected slice of an object to be examined is described comprising: a source of penetrating radiation, sweep means for forming energy from the source into a pencil beam and repeatedly sweeping the pencil beam over a line in space to define a sweep plane, first means for supporting an object to be examined so that the pencil beam intersections the object along a path passing through the object and the selected slice, line collimating means for filtering radiation scattered by the object, the line collimating means having a field of view which intersects and sweep plane in a bounded line so that the line collimating means passes only radiation scattered by elementary volumes of the object lying along the bounded line, and line collimating means including a plurality of channels such substantially planar in form to collectively define the field of view, the channels oriented so that pencil beam sweeps along the bounded line as a function of time, and radiation detector means responsive to radiation passed by the line collimating means.

• Assignee: American Science and Engineering, Inc., Cambridge, MA
• Patent Number(s): US 4809312
• OSTI ID: 6215577
• Country of Publication: United States
• Language: English

Related Subjects

440101* -- Radiation Instrumentation-- General Detectors or Monitors & Radiometric Instruments
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
BEAM DYNAMICS
COLLIMATORS
DESIGN
DIAGNOSTIC TECHNIQUES
FUNCTIONS
IMAGE SCANNERS
MEASURING INSTRUMENTS
OPERATION
RADIATION DETECTORS
RADIATION SOURCES
RESPONSE FUNCTIONS
TOMOGRAPHY