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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2408.16184 |
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| _version_ | 1866917871532113920 |
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| author | Yoshihara, Keisuke Abe, Tetsuro Aversano, Michele Gale, Alexander Ikeda, Hitomi Kaji, Hiroshi Kakuno, Hidekazu Koga, Taichiro Iijima, Toru Kato, Shinnosuke Kusudo, Ami Liu, Yuxin Maeda, Akane Mitra, Sayan Mitsuka, Gaku Miyabayashi, Kenkichi Nakamura, Isamu Nakayama, Hiroyuki Nakazawa, Yu Nomaru, Riku Okada, Iori Shi, Xiao-Dong Tanaka, Shuji Uno, Kenta Ushiroda, Yutaka Urbschat, Bela Zhang, Rui |
| author_facet | Yoshihara, Keisuke Abe, Tetsuro Aversano, Michele Gale, Alexander Ikeda, Hitomi Kaji, Hiroshi Kakuno, Hidekazu Koga, Taichiro Iijima, Toru Kato, Shinnosuke Kusudo, Ami Liu, Yuxin Maeda, Akane Mitra, Sayan Mitsuka, Gaku Miyabayashi, Kenkichi Nakamura, Isamu Nakayama, Hiroyuki Nakazawa, Yu Nomaru, Riku Okada, Iori Shi, Xiao-Dong Tanaka, Shuji Uno, Kenta Ushiroda, Yutaka Urbschat, Bela Zhang, Rui |
| contents | The SuperKEKB/Belle II experiment aims to collect high-statistics data of B meson pairs to explore new physics beyond the Standard Model (SM). SuperKEKB, an upgraded version of the KEKB accelerator, has achieved a world-record luminosity of $4.71 \times 10^{34} \, \mathrm{cm^{-2}s^{-1}}$ in 2022 but continues to strive for higher luminosities. One of the major obstacles is Sudden Beam Loss (SBL) events, which cause substantial beam losses and damage to the Belle~II detector. To find a hint for addressing SBL challenges, advanced beam diagnostic systems and enhanced beam abort systems have been developed. The diagnostic system aims to accurately pinpoint the start of beam losses, while the upgraded abort system quickly disposes of anomalous beams to minimize damage.
This paper details the development and implementation of these systems, including high-speed loss monitors, time synchronization with the White Rabbit system, and data acquisition systems. Efforts to understand the mechanisms of SBL events, using acoustic sensors to detect discharges, are also discussed. These measures aim to improve the operational stability and luminosity of SuperKEKB, contributing to the experiment's success. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_16184 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Development and Implementation of Advanced Beam Diagnostic and Abort Systems in SuperKEKB Yoshihara, Keisuke Abe, Tetsuro Aversano, Michele Gale, Alexander Ikeda, Hitomi Kaji, Hiroshi Kakuno, Hidekazu Koga, Taichiro Iijima, Toru Kato, Shinnosuke Kusudo, Ami Liu, Yuxin Maeda, Akane Mitra, Sayan Mitsuka, Gaku Miyabayashi, Kenkichi Nakamura, Isamu Nakayama, Hiroyuki Nakazawa, Yu Nomaru, Riku Okada, Iori Shi, Xiao-Dong Tanaka, Shuji Uno, Kenta Ushiroda, Yutaka Urbschat, Bela Zhang, Rui High Energy Physics - Experiment Instrumentation and Detectors The SuperKEKB/Belle II experiment aims to collect high-statistics data of B meson pairs to explore new physics beyond the Standard Model (SM). SuperKEKB, an upgraded version of the KEKB accelerator, has achieved a world-record luminosity of $4.71 \times 10^{34} \, \mathrm{cm^{-2}s^{-1}}$ in 2022 but continues to strive for higher luminosities. One of the major obstacles is Sudden Beam Loss (SBL) events, which cause substantial beam losses and damage to the Belle~II detector. To find a hint for addressing SBL challenges, advanced beam diagnostic systems and enhanced beam abort systems have been developed. The diagnostic system aims to accurately pinpoint the start of beam losses, while the upgraded abort system quickly disposes of anomalous beams to minimize damage. This paper details the development and implementation of these systems, including high-speed loss monitors, time synchronization with the White Rabbit system, and data acquisition systems. Efforts to understand the mechanisms of SBL events, using acoustic sensors to detect discharges, are also discussed. These measures aim to improve the operational stability and luminosity of SuperKEKB, contributing to the experiment's success. |
| title | Development and Implementation of Advanced Beam Diagnostic and Abort Systems in SuperKEKB |
| topic | High Energy Physics - Experiment Instrumentation and Detectors |
| url | https://arxiv.org/abs/2408.16184 |