| Title |
A Simulation of the Photoionization of H⁻ Together With the Subsequent Tracking of the Liberated Electrons |
| Authors |
- R.M. Thurman-Keup, M. El Baz, V.E. Scarpine
Fermilab, Batavia, Illinois, USA
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| Abstract |
The Proton Improvement Plan - II (PIP-II) is a new linear accelerator (LINAC) complex being built at Fermilab. It is based on superconducting radiofrequency cavities and will accelerate H⁻ ions to 800 MeV kinetic energy before injection into the existing Booster ring. Measurements of the profile of the beam along the LINAC must be done by non-intercepting methods due to the superconducting cavities. The method chosen is photoionization of a small number of H⁻ by a focused infrared laser, aka laserwire. The number of ionized electrons is measured as a function of laser position within the H⁻ beam. To aid in the design of the collection mechanism, a simulation was written in MATLAB with input from the commercial electromagnetic simulation, CST. This simulation calculates the number and positions of the liberated electrons and tracks them through the magnetic collection and H⁻ beam fields to the collection point. Results from this simulation for various points along the LINAC will be shown.
|
| Funding |
This work was produced by Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the U.S. Department of Energy. |
| Paper |
download WEP024.PDF [2.782 MB / 5 pages] |
| Poster |
download WEP024_POSTER.PDF [7.451 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 |
08 September 2023 |
| Revised |
10 September 2023 |
| Accepted |
12 September 2023 |
| Issue Date |
30 September 2023 |
| DOI |
doi:10.18429/JACoW-IBIC2023-WEP024 |
| Pages |
400-404 |
| 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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