Calibration of an Advanced Photon Source linac beam position monitor used for positron position measurement of a beam containing both positrons and electrons.

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The Advanced Photon Source (APS) linac beam position monitors can be used to monitor the position of a positron beam also containing electrons. To accomplish this task, both the signal at the bunching frequency of 2856 MHz and the signal at 2 x 2856 MHz are acquired and processed for each stripline. The positron beam position is obtained by forming a linear combination of both 2856- and 5712-MHz signals for each stripline and then performing the standard difference over sum computation. The required linear combination of the 2856- and 5712-MHz signals depends on the electrical calibration of each stripline/cable combination. ... continued below

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9 p.

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Sereno, N. S. May 19, 1998.

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Description

The Advanced Photon Source (APS) linac beam position monitors can be used to monitor the position of a positron beam also containing electrons. To accomplish this task, both the signal at the bunching frequency of 2856 MHz and the signal at 2 x 2856 MHz are acquired and processed for each stripline. The positron beam position is obtained by forming a linear combination of both 2856- and 5712-MHz signals for each stripline and then performing the standard difference over sum computation. The required linear combination of the 2856- and 5712-MHz signals depends on the electrical calibration of each stripline/cable combination. In this paper, the calibration constants for both 2856-MHz and 5712-MHz signals for each stripline are determined using a pure beam of electrons. The calibration constants are obtained by measuring the 2856- and 5712-MHz stripline signals at various electron beam currents and positions. Finally, the calibration constants measured using electrons are used to determine positron beam position for the mixed beam case.

Physical Description

9 p.

Notes

INIS; OSTI as DE00010695

Medium: P; Size: 9 pages

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  • Beam Instrumentation Workshop (BIW'98), Palo Alto, CA (US), 05/04/1998--05/07/1998

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  • Report No.: ANL/ASD/CP-95931
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 10695
  • Archival Resource Key: ark:/67531/metadc618401

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  • May 19, 1998

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  • June 16, 2015, 7:43 a.m.

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  • April 11, 2017, 7:30 p.m.

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Sereno, N. S. Calibration of an Advanced Photon Source linac beam position monitor used for positron position measurement of a beam containing both positrons and electrons., article, May 19, 1998; Illinois. (digital.library.unt.edu/ark:/67531/metadc618401/: accessed December 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.