Energy Citations Database

Bibliographic Citation

 
Document
For copies of Journal Articles, please contact the Publisher or your local public or university library and refer to the information in the Resource Relation field.
For copies of other documents, please see the Availability, Publisher, Research Organization, Resource Relation and/or Author (affiliation information) fields and/or Document Availability.
DOI 10.1107/S0909049507003962
Title High-energy x-ray optics with silicon saw-tooth refractive lenses.
Creator/Author Shastri, S. D. ; Almer, J. A. ; Ribbing, C. R. ; Cederstrom, B. C. ; X-Ray Science Division ; Uppsala Univ. ; Royal Inst. of Tech.
Publication Date2007 Jan 01
OSTI IdentifierOSTI ID: 914913
Report Number(s)ANL/XSD/JA-58329
DOE Contract NumberDE-AC02-06CH11357
Other Number(s)Journal ID: ISSN 0909-0495; JSYRES; TRN: US200817%%157
Resource TypeJournal Article
Resource RelationJournal: J. Synchrotron Radiat.; Journal Volume: 14; Journal Issue: 2007
Research OrgArgonne National Laboratory (ANL)
Sponsoring OrgSC; Swedish Foundation for Strategic Research; Swedish Research Council
Subject43 PARTICLE ACCELERATORS; ADVANCED PHOTON SOURCE; FOCUSING; GEOMETRY; KEV RANGE; LENSES; OPTICS; PERFORMANCE; PHOTONS; RADIATIONS; SCATTERING; SILICON; THICKNESS; WIGGLER MAGNETS
Description/Abstract Silicon saw-tooth refractive lenses have been in successful use for vertical focusing and collimation of high-energy X-rays (50-100 keV) at the 1-ID undulator beamline of the Advanced Photon Source. In addition to presenting an effectively parabolic thickness profile, as required for aberration-free refractive optics, these devices allow high transmission and continuous tunability in photon energy and focal length. Furthermore, the use of a single-crystal material (i.e. Si) minimizes small-angle scattering background. The focusing performance of such saw-tooth lenses, used in conjunction with the 1-ID beamline's bent double-Laue monochromator, is presented for both short ({approx}1:0.02) and long ({approx}1:0.6) focal-length geometries, giving line-foci in the 2 {micro}m-25 {micro}m width range with 81 keV X-rays. In addition, a compound focusing scheme was tested whereby the radiation intercepted by a distant short-focal-length lens is increased by having it receive a collimated beam from a nearer (upstream) lens. The collimation capabilities of Si saw-tooth lenses are also exploited to deliver enhanced throughput of a subsequently placed small-angular-acceptance high-energy-resolution post-monochromator in the 50-80 keV range. The successful use of such lenses in all these configurations establishes an important detail, that the pre-monochromator, despite being comprised of vertically reflecting bent Laue geometry crystals, can be brilliance-preserving to a very high degree.
Country of PublicationUnited States
LanguageENGLISH
FormatSize: 204-211
System Entry Date2008 Sep 29

Top