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| URL | https://doi.org/10.18429/JACoW-IBIC2025-MOPCO19 |
|---|---|
| Title | Large Dynamic Range Beam Intensity Measurement of Both H0 and Proton Beams in Injection Upgrade of CSNS-II |
| Authors |
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| Abstract | China Spallation Neutron Source (CSNS) upgrade project (CSNS-II) started in 2024. As the first important task, the injection section will be redesigned and a lot of beam instruments will be installed along the injection to I-Dump beam line. The H0 beam intensity at the downstream of the stripping foil is several microampere during the normal operation, while the proton beam intensity at the I-dump may be over 80mA during the commissioning of linac and RCS. A corresponding design of the ACCT sensor and electronics is introduced in this paper. There are two nanocrystalline cores in H0CT, providing two different turns ratio for the large dynamic range beam intensity measurement. The gain of the electronics is switchable in two ranges. The INDCT is equipped with only one core and the electronics design is aiming to a high SNR for the injected proton beam power evaluation. Tests in the lab showed a good linearity of the H0CT and INDCT sensors with the electronics. Beam commissioning of the injection section is planned in October of 2025. |
| Paper | download: MOPCO19.pdf |
| Cite | BibTeX, LaTeX, Text/Word, RIS, EndNote |
| Conference | 14th International Beam Instrumentation Conference |
| Series | |
| Location | Liverpool, UK |
| Date | 07-11 Sep 2025 |
| Publisher | JACoW Publishing, Geneva, Switzerland |
| Editorial Board | Narender Kumar (Editor-in-Chief) - UoL/CI, UK Robert Apsimon - CI, UK Thankonwat Chanwattana - SLRI, Thailand Zhichu Chen - SARI, China Eunhoon Im - IBS, Korea Jangwon Kwon - IBS, Korea Milaan Patel - UoL/CI, UK Volker RW Schaa - GSI, Germany Jana Thomson -TRIUMF, Canada Bradley Wilson, STFC, UK Hao Zhang, UoL/CI, UK |
| Online ISBN | 978-3-95450-262-2 |
| Online ISSN | 2673-5350 |
| Received | 03 September 2025 |
| Revised | 11 September 2025 |
| Accepted | 26 September 2025 |
| Issued | 20 January 2026 |
| DOI | 10.18429/JACoW-IBIC2025-MOPCO19 |
| Pages | 113-116 |
| Copyright | Published by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI. |