| Title |
Measurement of Transverse Beam Emittance for a High-Intensity Proton Injector |
| Authors |
- D.-H. Kim, H.S. Kim, H.-J. Kwon, S. Lee
KOMAC, KAERI, Gyeongju, Republic of Korea
|
| Abstract |
We propose a simple and fast diagnostics method for the transverse beam emittance using a solenoid magnet. The solenoid scan data is analyzed employing the hard edge solenoid model and thick lens approximation. The analytical method is validated by beam dynamics simulations with varying input beam parameters. To address the space charge effect in a simplified manner, the space charge force is linearized and incorporated between segments of the drift-solenoid transfer matrix. For intense hadron injectors with higher beam current accounting for space charge prove to be more effective for correction. Building upon the method validated through beam simulation, experiments are conducted on space charge compensation at the beam test stand in the Korea Multipurpose Accelerator Complex (KOMAC). In a constant ion source operating condition, beam emittance is measured from solenoid scans while varying the flow rate of krypton gas injection. Notable shifts are observed in transverse beam emittance attributable to krypton gas injection, implying some optimal gas flow rate for mitigating emittance growth.
|
| Funding |
This work was supported through "KOMAC operation fund" of KAERI by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (KAERI-524320-23) |
| Paper |
download THA2C1.PDF [0.819 MB / 5 pages] |
| Slides |
download THA2C1_TALK.PDF [3.438 MB] |
| Cite |
download ※ BibTeX
※ LaTeX
※ Text/Word
※ RIS
※ EndNote |
| Conference |
HB2023 |
| Series |
ICFA Advanced Beam Dynamics Workshop on High-Intensity and High-Brightness Hadron Beams (68th) |
| Location |
Geneva, Switzerland |
| Date |
09-13 October 2023 |
| Publisher |
JACoW Publishing, Geneva, Switzerland |
| Editorial Board |
Volker R.W. Schaa (GSI, Darmstadt, Germany); Jan Chrin (PSI, Villigen, Switzerland); Massimo Giovannozzi (CERN, Geneva, Switzerland); Dong Eon Kim (PAL, Pohang, South Korea); Marten H. Koopmans (CERN, Geneva, Switzerland); Anton Lechner (CERN, Geneva, Switzerland); Philippe Schoofs (CERN, Geneva, Switzerland) |
| Online ISBN |
978-3-95450-253-0 |
| Online ISSN |
2673-5571 |
| Received |
23 October 2023 |
| Revised |
28 October 2023 |
| Accepted |
30 October 2023 |
| Issued |
20 November 2023 |
| DOI |
doi:10.18429/JACoW-HB2023-THA2C1 |
| Pages |
363-367 |
| 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. |
|
