Physics – Instrumentation and Detectors
Scientific paper
2007-01-24
JINST2:P04006,2007
Physics
Instrumentation and Detectors
9 pages, 15 figures, minor corrections made, to appear as JINST_008P
Scientific paper
10.1088/1748-0221/2/04/P04006
Identifying light mesons which contain only up/down quarks (pions) from those containing a strange quark (kaons) over the typical meter length scales of a particle physics detector requires instrumentation capable of measuring flight times with a resolution on the order of 20ps. In the last few years a large number of inexpensive, multi-channel Time-to-Digital Converter (TDC) chips have become available. These devices typically have timing resolution performance in the hundreds of ps regime. A technique is presented that is a monolithic version of ``time stretcher'' solution adopted for the Belle Time-Of-Flight system to address this gap between resolution need and intrinsic multi-hit TDC performance.
Ruckman Larry L.
Varner Gary S.
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