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Study of different SX-700 monochromator designs for the undulator beamline (BL51) at MAX-lab

Aksela, S.; Kivimäki, A. LU ; Nyholm, R. LU and Svensson, S. (1992) In Review of Scientific Instruments 63(1). p.1252-1255
Abstract

Different designs of the SX-700 plane grating monochromator have been investigated for the undulator beamline (51) by using analytical considerations and carrying out ray tracing calculations. The most important modifications of the original design are those where the ellipsoidal focusing mirror has been replaced by a plane elliptical or by a spherical mirror. A significant advantage of the spherical mirror is essentially better figure accuracies (±0.2 arcsec). This is partly compensated by the introduced coma aberration which, however, can be made small with rather long exit arm lengths (5-6 m). If the slope errors of the plane elliptical mirror can be made as small as 0.5 arcsec, the differences in the ultimate resolution are small... (More)

Different designs of the SX-700 plane grating monochromator have been investigated for the undulator beamline (51) by using analytical considerations and carrying out ray tracing calculations. The most important modifications of the original design are those where the ellipsoidal focusing mirror has been replaced by a plane elliptical or by a spherical mirror. A significant advantage of the spherical mirror is essentially better figure accuracies (±0.2 arcsec). This is partly compensated by the introduced coma aberration which, however, can be made small with rather long exit arm lengths (5-6 m). If the slope errors of the plane elliptical mirror can be made as small as 0.5 arcsec, the differences in the ultimate resolution are small between the plane elliptical and spherical designs and then the source size is the main factor.

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author
organization
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type
Contribution to journal
publication status
published
in
Review of Scientific Instruments
volume
63
issue
1
pages
4 pages
publisher
American Institute of Physics
external identifiers
  • Scopus:36449000868
ISSN
0034-6748
DOI
10.1063/1.1143093
language
English
LU publication?
yes
id
af7261ee-fc69-4aeb-90bb-1e60fd3c0a46
date added to LUP
2016-05-17 14:14:05
date last changed
2016-10-13 05:08:42
@misc{af7261ee-fc69-4aeb-90bb-1e60fd3c0a46,
  abstract     = {<p>Different designs of the SX-700 plane grating monochromator have been investigated for the undulator beamline (51) by using analytical considerations and carrying out ray tracing calculations. The most important modifications of the original design are those where the ellipsoidal focusing mirror has been replaced by a plane elliptical or by a spherical mirror. A significant advantage of the spherical mirror is essentially better figure accuracies (±0.2 arcsec). This is partly compensated by the introduced coma aberration which, however, can be made small with rather long exit arm lengths (5-6 m). If the slope errors of the plane elliptical mirror can be made as small as 0.5 arcsec, the differences in the ultimate resolution are small between the plane elliptical and spherical designs and then the source size is the main factor.</p>},
  author       = {Aksela, S. and Kivimäki, A. and Nyholm, R. and Svensson, S.},
  issn         = {0034-6748},
  language     = {eng},
  number       = {1},
  pages        = {1252--1255},
  publisher    = {ARRAY(0x7cd32a8)},
  series       = {Review of Scientific Instruments},
  title        = {Study of different SX-700 monochromator designs for the undulator beamline (BL51) at MAX-lab},
  url          = {http://dx.doi.org/10.1063/1.1143093},
  volume       = {63},
  year         = {1992},
}