Continuously variable focal length lens
A material preferably in crystal form having a low atomic number such as beryllium (Z=4) provides for the focusing of x-rays in a continuously variable manner. The material is provided with plural spaced curvilinear, optically matched slots and/or recesses through which an x-ray beam is directed. The focal length of the material may be decreased or increased by increasing or decreasing, respectively, the number of slots (or recesses) through which the x-ray beam is directed, while fine tuning of the focal length is accomplished by rotation of the material so as to change the path length of the x-ray beam through the aligned cylindrical slows. X-ray analysis of a fixed point in a solid material may be performed by scanning the energy of the x-ray beam while rotating the material to maintain the beam's focal point at a fixed point in the specimen undergoing analysis.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- ACO2-06CH11357
- Assignee:
- U.S. Department of Energy (Washington, DC)
- Patent Number(s):
- 8,611,502
- Application Number:
- 12/910,013
- OSTI ID:
- 1110779
- Country of Publication:
- United States
- Language:
- English
Method of making of compound x-ray lenses and variable focus x-ray lens assembly
|
patent | April 2004 |
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