Development and demonstration of the Korea ALICE Telescope using electron beams at KEK PF-AR
Abstract
The development of ultra-low-mass, high-precision vertex detectors is a key requirement for future collider experiments and motivates extensive research and development of novel silicon tracking technologies. In this work, we present the development and beam-test demonstration of the Korea ALICE Telescope (KATS), a silicon-tracking telescope designed to support R&D on next-generation cylindrical vertex detectors, such as the proposed ALICE ITS3 upgrade. The telescope consists of six ALPIDE Monolithic Active Pixel Sensors (MAPS) used as reference tracking planes, a bent ALPIDE sensor serving as the device under test, and a scintillating-fiber-based trigger system, all housed in a light-tight modular enclosure. This setup enables precise track reconstruction and detailed performance studies of both planar and curved silicon sensors. Beam tests were carried out using high-energy electron beams at the KEK Photon Factory Advanced Ring (PF-AR). The telescope system operated stably under realistic beam conditions, and its tracking performance was successfully validated. The bent ALPIDE sensor was operated at a bending radius of approximately 18 mm, consistent with ITS3's design goals, without any observable degradation in detection performance. The measured results confirm that the KATS provides a versatile and reliable platform for studies of curved MAPS technologies, alignment precision, and tracking performance. These results provide important experimental validation of key technologies for future low-mass cylindrical silicon vertex detectors and establish KATS as a valuable facility for ongoing and future detector R&D.
Related
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- Operational Challenges in Efficient and Sustainable Operation of the Event Processing Nodes GPU Farm at the ALICE Experiment
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BibTeX
@misc{kim2026development,
title = {{Development and demonstration of the Korea ALICE Telescope using electron beams at KEK PF-AR}},
author = {Jiyoung Kim and Meike Danisch and Sungwoon Choi and Tatsuya Chujo and Taku Gunji and Yoonha Hong and Hangil Jang and Towa Katsuno and Ryotaro Kohara and Minjung Kweon and Sanghoon Lim and Inaba Motoi and Hikari Murakami and Hanseo Park and Jonghan Park and Shingo Sakai and Daito Shibata and Reita Wada and Kyungrim Woo and Yorito Yamaguchi and Seunghwan Yang and In-Kwon Yoo and Miljenko Suljic and Serhiy Senyukov and Giacomo Contin and Domenico Colella and Bong-Hwi Lim and Mihail-Bogdan Blidaru and Berkin Ulukutlu},
howpublished = {HAL},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.09521},
eprint = {2609.09521},
archivePrefix = {arXiv},
url = {https://hal.science/hal-05759378v1},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Development and demonstration of the Korea ALICE Telescope using electron beams at KEK PF-AR
AU - Jiyoung Kim
AU - Meike Danisch
AU - Sungwoon Choi
AU - Tatsuya Chujo
AU - Taku Gunji
AU - Yoonha Hong
AU - Hangil Jang
AU - Towa Katsuno
AU - Ryotaro Kohara
AU - Minjung Kweon
AU - Sanghoon Lim
AU - Inaba Motoi
AU - Hikari Murakami
AU - Hanseo Park
AU - Jonghan Park
AU - Shingo Sakai
AU - Daito Shibata
AU - Reita Wada
AU - Kyungrim Woo
AU - Yorito Yamaguchi
AU - Seunghwan Yang
AU - In-Kwon Yoo
AU - Miljenko Suljic
AU - Serhiy Senyukov
AU - Giacomo Contin
AU - Domenico Colella
AU - Bong-Hwi Lim
AU - Mihail-Bogdan Blidaru
AU - Berkin Ulukutlu
PY - 2026
DA - 2026/09/08
PB - HAL
DO - 10.48550/arxiv.2609.09521
UR - https://hal.science/hal-05759378v1
AB - The development of ultra-low-mass, high-precision vertex detectors is a key requirement for future collider experiments and motivates extensive research and development of novel silicon tracking technologies. In this work, we present the development and beam-test demonstration of the Korea ALICE Telescope (KATS), a silicon-tracking telescope designed to support R&D on next-generation cylindrical vertex detectors, such as the proposed ALICE ITS3 upgrade. The telescope consists of six ALPIDE Monolithic Active Pixel Sensors (MAPS) used as reference tracking planes, a bent ALPIDE sensor serving as the device under test, and a scintillating-fiber-based trigger system, all housed in a light-tight modular enclosure. This setup enables precise track reconstruction and detailed performance studies of both planar and curved silicon sensors. Beam tests were carried out using high-energy electron beams at the KEK Photon Factory Advanced Ring (PF-AR). The telescope system operated stably under realistic beam conditions, and its tracking performance was successfully validated. The bent ALPIDE sensor was operated at a bending radius of approximately 18 mm, consistent with ITS3's design goals, without any observable degradation in detection performance. The measured results confirm that the KATS provides a versatile and reliable platform for studies of curved MAPS technologies, alignment precision, and tracking performance. These results provide important experimental validation of key technologies for future low-mass cylindrical silicon vertex detectors and establish KATS as a valuable facility for ongoing and future detector R&D.
ER -