A monolithic pixel sensor with fine space-time resolution based on silicon-on-insulator technology for the ILC vertex detector
March 02, 2017
August 03, 2017
We have been developing a new monolithic pixel sensor with silicon-on-insulator (SOI) technology for the International Linear Collider (ILC) vertex detector system. The new SOI sensor SOFIST can store both the position and timing information of charged particles. We will implement small pixel circuit with 20\(\times\)20 \(\mu\)m\(^2\) to achieve 3 \(\mu\)m single point resolution. The beam collision of ILC occurs every 554 nsec during a bunch-train injection of 1 msec. The pixel also records the hit timing with an embedded time-stamp circuit to identify the hit event of each bunch collision. The sensor chip has column-parallel analog-to-digital conversion (ADC) circuits and zero-suppression logic for high-speed data readout. We are currently designing and evaluating two prototype sensor chips for optimizing and minimizing the SOFIST pixel circuit.
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