ANL Advanced Photon Source crotch absorber design

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The ANL 7-GeV Advanced Photon Source storage ring crotch absorber will be subjected to a very high photon loading power density, approximately 750 W/mm{sup 2} at normal incidence. To accommodate this high heat load, two designs were studied: one is a V-type compound angle absorber and the other is a horizontally rotated plate absorber. For both models, thermal and structural analyses have been carried out using 3-D finite element analysis. The analysis indicates that the V-type compound angle absorber controlled the peak temperatures effectively within the given geometric constraints. Test samples made of GlidCop Al 15 (alumina dispersion strengthened copper) ... continued below

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Pages: (4 p)

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Choi, M. (Seoul National Univ. (Republic of Korea)); Gonczy, J.D.; Howell, J.W. & Niemann, R.C. (Argonne National Lab., IL (USA)) January 1, 1991.

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The ANL 7-GeV Advanced Photon Source storage ring crotch absorber will be subjected to a very high photon loading power density, approximately 750 W/mm{sup 2} at normal incidence. To accommodate this high heat load, two designs were studied: one is a V-type compound angle absorber and the other is a horizontally rotated plate absorber. For both models, thermal and structural analyses have been carried out using 3-D finite element analysis. The analysis indicates that the V-type compound angle absorber controlled the peak temperatures effectively within the given geometric constraints. Test samples made of GlidCop Al 15 (alumina dispersion strengthened copper) were evaluated with an electron beam welder. The predicted and measured temperatures were in reasonable agreement. The overall absorber design includes a perforated screen in the positron beam area of the storage ring vacuum chamber to reduce rf impedance and to provide pumping access for the high local gas load. 3 refs., 4 figs., 2 tabs.

Physical Description

Pages: (4 p)

Notes

OSTI; NTIS; INIS; GPO Dep.

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  • 1991 Institute of Electrical and Electronics Engineers (IEEE) particle accelerator conference (PAC), San Francisco, CA (USA), 6-9 May 1991

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  • Other: DE91013612
  • Report No.: ANL/CP-73270
  • Report No.: CONF-910505--190
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 5549745
  • Archival Resource Key: ark:/67531/metadc1093801

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Office of Scientific & Technical Information Technical Reports

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  • January 1, 1991

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  • Feb. 10, 2018, 10:06 p.m.

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  • April 17, 2018, 4:07 p.m.

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Choi, M. (Seoul National Univ. (Republic of Korea)); Gonczy, J.D.; Howell, J.W. & Niemann, R.C. (Argonne National Lab., IL (USA)). ANL Advanced Photon Source crotch absorber design, article, January 1, 1991; Illinois. (digital.library.unt.edu/ark:/67531/metadc1093801/: accessed October 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.