| Title |
First Results for a 50 MeV Beam Induced Fluorescence Monitor for Beam Profile Measurements |
| Authors |
- G.B. Rosenthal, J.I. Anderson, A. Cao, E. Cramer, T. Gordon, K. Kuhn, O.O. Ledezma Vazquez, J. Lopez, S. Lynam, J.B. Ringuette, L. Szeto, J. Zhou
Nusano, Valencia, CA, USA
- E.F. Dorman, R.C. Emery, B. Smith
University of Washington Medical Center, Seattle, Washington, USA
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| Abstract |
Nusano is developing a 50 MeV alpha (4He++) particle accelerator*, primarily to produce medical radionuclides. The accelerator produces an average current of 3 mAe with 20 mAe average macro pulse current. This results in an average beam power of 75 kW, and an average beam power within the macro pulse of 500 kW. The beam profile at the exit of the DTL is approximately gaussian with a diameter (FWHM) of about 3 mm. Designing diagnostics for this beam is challenging, as any diagnostics that intercept beam will receive a very high heat load. A BIFM (Beam Induced Fluorescence Monitor) is being developed to measure beam profiles. Nitrogen gas is leaked into the beamline. Excitation of the nitrogen by beam particles is captured using an image intensifier. The signal generated is directly proportional to the beam current. A prototype system has been constructed and tested on a lower intensity alpha beam. First results indicate we can measure beam profile to a 100 µm accuracy. Production system is currently being designed.
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| Footnotes & References |
* The Nusano accelerator can also accelerate 2H+, 3He++, 6Li3+, 7Li3+, and a few other heavier ions. |
| Paper |
download WEP030.PDF [2.417 MB / 3 pages] |
| 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 |
05 September 2023 |
| Revised |
10 September 2023 |
| Accepted |
14 September 2023 |
| Issue Date |
01 October 2023 |
| DOI |
doi:10.18429/JACoW-IBIC2023-WEP030 |
| Pages |
418-420 |
| 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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