July 31, 2013 Tracking CDC/FDC
Meeting Time and Place
Wednesday July 31, 2013 at 11:00am At Jefferson Lab, the meeting will be held in F326
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Hardware Agenda
- Announcement
- FDC Update
- CDC Update
- Data Formats
Minutes
Present: Naomi, Beni, Simon, David, Cody
- FDC Update
- CDC Update
- We are now reading out data from all 3 new fadcs successfully, data look fine, tracks aplenty.
- Data Formats
- fADC125 Data Format Document
We decided to reinstate data type 5 (window raw data) for reading out pedestal data in the absence of a hit, and to use this instead of type 6, pulse raw data. This leaves us with data types 5 (window raw data), 7 (pulse data) and 8 (combined - pulse data followed by raw data). Window raw data would be used for configuration; pulse data would be the usual hit event readout; the combined format would facilitate algorithm development and monitoring.
- David has already updated and redistributed the document.
- FDC algorithm
The integration requirements for the 2 detectors are not identical - the CDC has pulses which can start at any time during a window of nearly 1us but all end at the same time, whereas the FDC pulses can start at any time during a shorter window, and are much shorter in duration. There are benefits to having one firmware package which would be used for both FDC and CDC; this would work best if there could be software settings to specify that (eg) a certain process should be used for the FDC and another for the CDC.
- CDC algorithm
Beni is going to implement Naomi's timing algorithm for the FDC to see how it performs.
