The ladder and readout cables of intermediate silicon strip detector for sPHENIX

A new silicon-strip-type detector was developed for precise charged-particle tracking in the central rapidity region of heavy ion collisions. A new detector and collaboration at the Relativistic Heavy Ion Collider at Brookhaven National Laboratory is sPHENIX, which is a major upgrade of the PHENIX detector. The intermediate tracker (INTT) is part of the advanced tracking system of the sPHENIX detector complex together with a CMOS monolithic-active-pixel-sensor based silicon-pixel vertex detector, a time-projection chamber, and a micromegas-based detector. The INTT detector is barrel shaped and comprises 56 silicon ladders. Two different types of strip sensors of 78 μ m pitch and 320 μ m thick are mounted on each half of a silicon ladder. Each strip sensor is segmented into 8 × 2 and 5 × 2 blocks with lengths of 16 and 20 mm. Strips are read out with a silicon strip-readout (FPHX) chip. In order to transmit massive data from the FPHX to the down stream readout electronics card (ROC), a series of long and high speed readout cables were developed. This document focuses on the silicon ladder, the readout cables, and the ROC of the INTT. The radiation hardness is studied for some parts of the INTT devices in the last part of this document, since the INTT employed some materials from the technology frontier of the industry whose radiation hardness is not necessarily well known.

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Journal
Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment
Published
2025-09-22
DOI
https://doi.org/10.1016/j.nima.2025.171020
Citations
1
Primary Topic
High-Energy Particle Collisions Research
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article
Field-Weighted Citation Impact
1.87
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article

The ladder and readout cables of intermediate silicon strip detector for sPHENIX

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Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment
High-Energy Particle Collisions Research
1.87
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The ladder and readout cables of intermediate silicon strip detector for sPHENIX

G. H. Nakano, T. Todoroki, D. Cacace, Nobumitsu Morimoto, H. Imagawa, I. Nakagawa, Kiminori Sugino, Daiki Nemoto, R. Kawashima, R. Pisani, S. Hasegawa, Toshiyuki Kato, Hiroaki Masuda, Tomoko Harada, Y. Sekiguchi, A. Enokizono, Tetsuya Tsuruta, S. Nishimori, Y. Ishigaki, T. Hachiya, M. Morita, J. Bertaux, Y. Akiba, K. Fujiki, G. Nukazuka, Keiji Iwatsuki, T. Kikuchi, R. Shishikura, Motonari Kano, Takatoshi Ichino, M. Isshiki, Weiyue Tang, Runtian Kan, H. Imai, R. Takahama, Mitsushi Ikemoto, G. Mitsuka, K.Y. Chen, K. Shiina, E. J. Mannel, Yuta Terasaka, W. Xie, Milovan Stojanović, Haiying Li, Y. Yamaguchi, RenZheng Xiao, Yuya Nakamura, M. Watanabe, R.-S. Lu, M. Shimomura, R. Nouicer, B. Hong, T. Kondo, M. Shibata, C. M. Kuo, K. y. Cheng, L.S. Tsai, H. En’yo, M. Hata, Y. Sugiyama, J. I. Hwang, Atsuyuki Suzuki, Takuya Kumaoka, C. W. Shih, Hiroshi Yanagawa, H. Aso, Yuko Fujino, H. Tsujibata, M. Fujiiwara, H. Kureha, Y. Namimoto, I. Omae
article en
1 citations

Abstract

A new silicon-strip-type detector was developed for precise charged-particle tracking in the central rapidity region of heavy ion collisions. A new detector and collaboration at the Relativistic Heavy Ion Collider at Brookhaven National Laboratory is sPHENIX, which is a major upgrade of the PHENIX detector. The intermediate tracker (INTT) is part of the advanced tracking system of the sPHENIX detector complex together with a CMOS monolithic-active-pixel-sensor based silicon-pixel vertex detector, a time-projection chamber, and a micromegas-based detector. The INTT detector is barrel shaped and comprises 56 silicon ladders. Two different types of strip sensors of 78 μ m pitch and 320 μ m thick are mounted on each half of a silicon ladder. Each strip sensor is segmented into 8 × 2 and 5 × 2 blocks with lengths of 16 and 20 mm. Strips are read out with a silicon strip-readout (FPHX) chip. In order to transmit massive data from the FPHX to the down stream readout electronics card (ROC), a series of long and high speed readout cables were developed. This document focuses on the silicon ladder, the readout cables, and the ROC of the INTT. The radiation hardness is studied for some parts of the INTT devices in the last part of this document, since the INTT employed some materials from the technology frontier of the industry whose radiation hardness is not necessarily well known.

Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated EquipmentVol. 1082
Japan Atomic Energy Agency (JP), Rikkyo University (JP), Korea University (KR), Brookhaven National Laboratory (US), Purdue University West Lafayette (US), National Central University (TW), RIKEN BNL Research Center (US), Korea University (JP), RIKEN Nishina Center (JP), Nara Women's University (JP)
Openalex Percentile: Top 12%
High-Energy Particle Collisions Research
1.87
DOIOpen Access PDFOpenAlex
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