Instrument and method for focusing x rays, gamma rays, and neutrons

Patent · Mon Apr 20 00:00:00 EST 1981

OSTI ID:5307495

Smither, R K

A crystal diffraction instrument is described which has an improved crystalline structure having a face for receiving a beam of photons or neutrons and diffraction planar spacing along that face with the spacing increasing progressively along the face to provide a decreasing Bragg angle and thereby increasing the usable area and acceptance angle. The increased planar spacing is provided by the use of a temperature differential across the crystalline structure, by assembling a plurality of crystalline structure with different compositions, by an individual crystalline structure with a varying composition and thereby a changing planar spacing along its face, and by combinations of these techniques.

• DOE Contract Number: W-31-109-ENG-38
• Assignee: Dept. of Energy
• OSTI ID: 5307495
• Country of Publication: United States
• Language: English

Related Subjects

47 OTHER INSTRUMENTATION
DIFFRACTOMETERS
BRAGG REFLECTION
CRYSTAL STRUCTURE
FOCUSING
MEASURING INSTRUMENTS
REFLECTION
440300* - Miscellaneous Instruments- (-1989)