| Title |
APS Upgrade Radiation Safety Beam Current Interlock |
| Authors |
- R.T. Keane, K.C. Harkay, N. Sereno
ANL, Lemont, Illinois, USA
- A. Caracappa, C. Danneil, K. Ha, J. Mead, D. Padrazo
BNL, Upton, New York, USA
|
| Abstract |
The Advanced Photon Source upgrade (APS-U) Multi-Bend Acromat (MBA) storage ring utilizes on-axis swap-out injection requiring up to 20nC charge per electron bunch. Enforcement of radiation safety limits for the new storage ring will be accomplished by a new beam charge monitor interlock that accumulates beam charge measurements in the Booster-to-Storage ring (BTS) transfer line and disables injection when the charge limit over a preset time period is exceeded. The new interlock is based on the existing APS Beam Shut-Off Current Monitor (BESOCM), and incorporates significant improvements over the existing system. New features include use of direct digitization and FPGA processing, extensive remote monitoring capabilities, expanded self-test and fail-safe functions, and the ability to adjust settings and monitor status remotely via EPICS. The new device integrates a test pulse (self-check) feature that verifies the integrity of the integrating beam current transformer (ICT) and cable system used to detect the beam signal. This paper describes the new BTS interlock (BESOCM) design and presents results of bench test and in-machine evaluation of the prototype and production units.
|
| Funding |
Work supported by U. S. Department of Energy Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357 |
| Paper |
download TUP041.PDF [0.698 MB / 4 pages] |
| Poster |
download TUP041_POSTER.PDF [1.731 MB] |
| Cite |
download ※ BibTeX
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※ EndNote |
| Conference |
IBIC2023 |
| Series |
International Beam Instrumentation Conference (12th) |
| Location |
Saskatoon, Canada |
| Date |
10-14 September 2023 |
| Publisher |
JACoW Publishing, Geneva, Switzerland |
| Editorial Board |
Volker R.W. Schaa (GSI, Darmstadt, Germany); Tonia Batten (CLS, Saskatoon, Canada); Michael Bree (CLS, Saskatoon, Canada); Christine Petit-Jean-Genaz (CERN, Geneva, Switzerland); Darren Hunter (CLS, Saskatoon, Canada) |
| Online ISBN |
978-3-95450-236-3 |
| Online ISSN |
2673-5350 |
| Received |
07 September 2023 |
| Revised |
08 September 2023 |
| Accepted |
13 September 2023 |
| Issue Date |
01 October 2023 |
| DOI |
doi:10.18429/JACoW-IBIC2023-TUP041 |
| Pages |
281-284 |
| Copyright |
 Published by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 International license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI. |
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