Journal Article

GSI-2026-00228

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Minimal material, maximum coverage: Silicon Tracking System for high-occupancy conditions

Teklishyn, M. (Corresponding author)GSI* ; Sánchez, L. M. C.GSI* ; Frankenfeld, U.GSI* ; Heuser, J.GSI* ; Kshyvanskyi, O. ; Lehnert, J.GSI* ; Zaldivar, D. A. R.GSI* ; Garcés, D. R.GSI* ; Rodriguez, T.GSI* ; Schmidt, C. J.GSI* ; Semeniuk, P.GSI* ; Shiroya, M.GSI* ; Sharma, A.GSI* ; Toia, A.GSI* ; Vasylyev, O.GSI*

2025
Elsevier [Amsterdam]

Please use a persistent id in citations: doi:10.1016/j.nima.2025.170714  doi:10.15120/GSI-2026-00228

Abstract: Silicon strip sensors have long been a reliable technology for particle detection. Here, we push the limits of silicon tracking detectors by targeting an unprecedentedly low material budget of 2%–7% X0 in an 8-layer 4 m2 detector designed for high-occupancy environments (≤ 10 MHz/cm2). To achieve this, we employ Double-Sided Double Metal (DSDM) silicon microstrip sensors, coupled with readout electronics capable of precise timing and energy measurements. These 320μm thick sensors, featuring 2 × 1024 channels with a 58μm pitch, are connected via ultra-lightweight aluminum-polyimide microcables for signal transmission and integrated with a custom SMX readout ASIC, operating in free-streaming mode. This system enables the simultaneous measurement of time (Δt≃5ns) and charge deposition (0.1–100 fC), significantly enhancing the detector’s capacity for high-precision track reconstruction in high-occupancy and harsh radiation field environments. The primary application of this technology is the Silicon Tracking System (STS) for the CBM experiment, with additional potential in projects like the J-PARC E16 experiment and future uses in medical physics, such as advanced imaging telescopes. In this contribution, we present the current status of CBM STS construction, with almost one-third of the modules produced and tested. We also discuss immediate applications and explore promising prospects in both scientific and medical fields.

Note: This is an open access article under the CC BY license ( http://creativecommons.org/licenses/by/4.0/ )

---

Contributing Institute(s):

1. CBM (CBM)
2. Collaboration FAIR: CBM (CBM@FAIR)

Research Program(s):

1. 612 - Cosmic Matter in the Laboratory (POF4-612) (POF4-612)

Experiment(s):

1. External experiment at external facility/ no experiment at GSI (other)

---

Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

---