maarten vandijkphysics ox ac uk TORCH Pico TDC

maarten. vandijk@physics. ox. ac. uk TORCH Pico. TDC meeting CERN, 23 February 2017 M. van Dijk

maarten. vandijk@physics. ox. ac. uk TORCH Pico. TDC meeting February 23, 2017 TORCH • Cherenkov detector based on solid radiator for LHCb • Particle identification by time of flight measurement • Single photon time resolution required ~70 ps • Split between electronics / reconstruction as 50 ⊕ 50 ps • High granularity detectors • 8 x 128 ch on 60 x 60 mm 2 • Requires high density 2

TORCH Pico. TDC meeting February 23, 2017 maarten. vandijk@physics. ox. ac. uk TORCH electronics HDMI Connector Readout Board Ethernet Cable MCP interface NINO 32 Readout Backplane +5 V Power Jack Regulators and power transistors HPTDC 3

TORCH Pico. TDC meeting February 23, 2017 maarten. vandijk@physics. ox. ac. uk UART & Serial decoder Trig logic Clk & Trig Fanout X 4 MAC Core and PHY Read & Formatting MAC TX Encoding HPTDC CFG FIFO & HPTDC readout logic MAC RX Decoding DAC HPTDC NINO Firmware architecture JTAG Header 4

maarten. vandijk@physics. ox. ac. uk TORCH Pico. TDC meeting February 23, 2017 TORCH Testbeam • PS/T 9 September 2016 • Photonis 32 x 32 Planacon • 8 x 32 ch instrumented • Calibration of NINO very difficult • Developed data-driven algorithm for time walk correction • Board in preparation for charge to width calibration • Testbeam highly successful • Further improvements and tuning expected • Paper currently in preparation Sigma (ps) Column 0 123± 4 Column 1 94± 3 Column 2 103± 3 Column 3 99± 4 5

maarten. vandijk@physics. ox. ac. uk TORCH Pico. TDC meeting February 23, 2017 Full-scale prototype • Testbeam planned for end of year • Optics and detectors ordered • Quartz delivery imminent • Detectors expected with several months • Full batch of electronics currently being developed and produced • Modular by function as current generation • 128 ch NINO board (4 x 32 ch NINO chip) • 64 ch HPTDC board (2 x 32 ch HPTDC, two per NINO board) • Goal for full prototype: 10 detectors, ~5000 channels 6

maarten. vandijk@physics. ox. ac. uk TORCH Pico. TDC meeting February 23, 2017 New ASICs • New generation of ASICs would allow TORCH to push even further • Possibilities • Current generation (32 ch) NINO + current generation HPTDC • Current generation (32 ch) NINO + pico. TDC • Would require support for LVDS • Super. NINO + pico. TDC • New ASICs offer significantly improved performance, and would consequently improve TORCH by a large margin 7