Title: Diffraction camera for imaging penetrating radiation

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Claims: I claim:

1. An imaging device for focusing a two dimensional X-ray/gamma ray/neutron radiated object as a two dimensional image by Bragg diffraction comprising at least one single crystal bent to conform to the radius of a Rowland sphere of radius 2R and ground to fit snugly on a Rowland sphere of radius R and in motion relative to an axis normal to the axis of symmetry of the crystal.

2. A diffraction camera type imaging device as in claim 1 wherein the motion is rotary about said axis normal to the axis of symmetry.

3. A diffraction camera type imaging device as in claim 1 wherein the motion is translatory rectilinearly along said axis of symmetry.

4. A diffraction camera-type imaging device as defined in claim 1, including a pair of crystals each bent to conform to the radius of its Rowland sphere of radius 2R and ground to fit snugly on its Rowland sphere of radius R.

5. A diffraction camera-type imaging device including three pairs of crystals as defined in claim 1.

6. The invention defined in claim 5 wherein the crystal comprises LiF cleaved along its 220 planes.

Other info:

Inventors: Carroll, Jr., Edward E. (Gainesville, FL, US)

Application Number: 911666
Filing Date: 1978-06-01
Publication_date: 1980-05-13
Assignee: University of Florida Board of Regents (Tallahasee, FL)
Primary Class(es): 378/85 378/84, 378/145
Other Classes:
US Patent Ref:

2688094	Aug, 1954	Dumond.
3079501	Feb, 1963	Birk, Jr.
3160749	Dec, 1964	Spielberg.
3628040	Dec, 1971	Schnopper et al.	250/280.
3898455	Aug, 1975	Furna, Jr.	250/280.

Other Refs:
Primary Examiner: Smith, Alfred E.
Assistant Examiner: Grigsby, T. N.
Attorney: Stowell; Harold L.