Use of the program SHADOW in designing a capillary focusing beamline (invited)

F. C. Brown, K. H. Kim, S. M. Heald, B. M. Barg, E. A. Stern

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

In this report we consider the use of the program SHADOW for ray tracing different configurations of the PNC‐CAT mircrofocus beamline. The emphasis is on the final design, which will include crystal and grazing incidence optics focusing onto the entrance of a long tapered glass capillary whose outlet diameter is of the order of one micron or less. The ray‐tracing program has been especially valuable in comparing different configurations, determining the required stability of components, and optimizing the capillary profile. It has also been useful in evaluating the results of actual measurements on the throughput of long tapered capillaries fabricated of silica glass. Suggestions for improvements to SHADOW are given. We also present results of a compact pc‐based capillary ray‐tracing program for comparison. It allows us to use different profiles with minimal programming effort.

Original languageEnglish
Pages (from-to)3379-3380
Number of pages2
JournalReview of Scientific Instruments
Volume67
Issue number9
DOIs
StatePublished - Sep 1996
Externally publishedYes

Keywords

  • COMPUTER CODES
  • DESIGN
  • FOCUSING
  • OPTICAL SYSTEMS
  • PHOTON BEAMS
  • PROGRAMMING
  • SYNCHROTRON RADIATION SOURCES
  • X−RAY EQUIPMENT

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