Speaker
Description
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 4m² 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 300 µm thick sensors, featuring 2×1024 channels with a 58 µm pitch, are connected via ultra-lightweight aluminium-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 ≃ 5 ns) 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.
| Primary experiment | CBM |
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