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Title: Measurements of x-ray scattering from accelerator vacuum chamber surfaces, and comparison with an analytical model

Abstract

This study compares measurements and calculations of scattering of photons from technical vacuum chamber surfaces typical of accelerators. Synchrotron radiation generated by a charged particle beam in the accelerator is either absorbed, specularly reflected, or scattered by the vacuum chamber surface. This phenomenon has important implications on the operation of the accelerator. Measurements of photon scattering were made at the BESSY-II synchrotron radiation facility using samples of aluminum vacuum chamber from Cornell electron storage ring (CESR). A description of the analytic model used in the calculation is given, which takes into account the reflectivity of the material, the surface features of the sample, the wavelengths and the incident angles of the photons. The surface properties used in these calculations were obtained from measurements made from an atomic force microscope.

Authors:
 [1];  [1];  [2];  [3];  [4]
  1. Cornell Univ., Ithaca, NY (United States)
  2. National Inst. of Nuclear Physics (INFN), Frascati (Italy). National Lab. of Frascati (INFN-LNF)
  3. KEK, Ibaraki (Japan)
  4. Helmholtz-Zentrum Berlin (HZB), Berlin (Germany)
Publication Date:
Research Org.:
Cornell Univ., Ithaca, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1182834
Alternate Identifier(s):
OSTI ID: 1454518
Grant/Contract Number:  
SC0006505; FC02-08ER41538
Resource Type:
Journal Article: Published Article
Journal Name:
Physical Review Special Topics. Accelerators and Beams
Additional Journal Information:
Journal Volume: 18; Journal Issue: 4; Journal ID: ISSN 1098-4402
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Dugan, G. F., Sonnad, K. G., Cimino, R., Ishibashi, T., and Schafers, F. Measurements of x-ray scattering from accelerator vacuum chamber surfaces, and comparison with an analytical model. United States: N. p., 2015. Web. doi:10.1103/PhysRevSTAB.18.040704.
Dugan, G. F., Sonnad, K. G., Cimino, R., Ishibashi, T., & Schafers, F. Measurements of x-ray scattering from accelerator vacuum chamber surfaces, and comparison with an analytical model. United States. doi:10.1103/PhysRevSTAB.18.040704.
Dugan, G. F., Sonnad, K. G., Cimino, R., Ishibashi, T., and Schafers, F. Thu . "Measurements of x-ray scattering from accelerator vacuum chamber surfaces, and comparison with an analytical model". United States. doi:10.1103/PhysRevSTAB.18.040704.
@article{osti_1182834,
title = {Measurements of x-ray scattering from accelerator vacuum chamber surfaces, and comparison with an analytical model},
author = {Dugan, G. F. and Sonnad, K. G. and Cimino, R. and Ishibashi, T. and Schafers, F.},
abstractNote = {This study compares measurements and calculations of scattering of photons from technical vacuum chamber surfaces typical of accelerators. Synchrotron radiation generated by a charged particle beam in the accelerator is either absorbed, specularly reflected, or scattered by the vacuum chamber surface. This phenomenon has important implications on the operation of the accelerator. Measurements of photon scattering were made at the BESSY-II synchrotron radiation facility using samples of aluminum vacuum chamber from Cornell electron storage ring (CESR). A description of the analytic model used in the calculation is given, which takes into account the reflectivity of the material, the surface features of the sample, the wavelengths and the incident angles of the photons. The surface properties used in these calculations were obtained from measurements made from an atomic force microscope.},
doi = {10.1103/PhysRevSTAB.18.040704},
journal = {Physical Review Special Topics. Accelerators and Beams},
number = 4,
volume = 18,
place = {United States},
year = {Thu Apr 30 00:00:00 EDT 2015},
month = {Thu Apr 30 00:00:00 EDT 2015}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1103/PhysRevSTAB.18.040704

Citation Metrics:
Cited by: 4 works
Citation information provided by
Web of Science

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Works referenced in this record:

X-Ray Interactions: Photoabsorption, Scattering, Transmission, and Reflection at E = 50-30,000 eV, Z = 1-92
journal, July 1993

  • Henke, B. L.; Gullikson, E. M.; Davis, J. C.
  • Atomic Data and Nuclear Data Tables, Vol. 54, Issue 2, p. 181-342
  • DOI: 10.1006/adnd.1993.1013