Hi,
I wanted to submit a (slightly) late abstract for TIPP this year. The
indico site is now closed for submissions (I was working under the wrong
assumption about the timezone for this deadline). Apologies for that.
If there is still a chance to have it considered, my abstract follows:
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Extremely fast timing from Micro-Channel Plate PhotoMultiplier Tubes
(MCP-PMTs) and multi-gigasample per second (GSa/s) waveform sampling
ASICs will allow precision timing to play a pivotal role in the
next-generation of Ring Imaging Cherenkov (RICH) detectors. We have
developed a second prototype of the electronics to instrument the Time
of Propagation (TOP) counter for the Belle II detector at KEK in
Tsukuba, Japan. The front-end electronics modules consist of an array
of waveform sampling / digitizing ASICs controlled by FPGAs with
embedded microprocessor cores. The ASICs digitize amplified signals
from an array of multi-anode MCP-PMTs coupled to a quartz radiator bar.
Unwanted artifacts in the data are corrected with digital signal
processing and feature-extraction on the front-end. Readout and control
are done via multi-gigabit per second fiber optic links to a custom
back-end.
A previous generation of these modules has been running in a prototype
Focusing Detection of Internally Reflected Cherenkov (fDIRC) counter
mounted in a Cosmic-Ray Stand (CRT) at SLAC continuously for over 12
months. The most recent version was taken to a beam test at
SPring-8/LEPS in Japan in mid-2013. These experiences have influenced
the design of the next set of ASICs and PCBs for the front-end, and we
will present details on the latest generation.
--------------------
thank you for your consideration.
--
-Matt Andrew
808 956-2920
IDlab, Watanabe 214b
Department of Physics
University of Hawaii at Manoa
