Development

Date Action
2015-07-28 New monitoring programs: DWCTracking and DWCBurstDisplay

Monitoring Software BL4S 2014

Monitoring software from last year is described in https://twiki.cern.ch/twiki/bin/view/BL4S/TechnicalReport2014 , section 5.2.2, DAQ Software, Online Monitoring. The SW is located in the SVN repository https://svnweb.cern.ch/cern/wsvn/bl4sdaq/DataFlow/ROSMonitor/?#afea060d2ca405e76848091cc785e912e and the development environment is ATLAS CMT based. As can be seen in the requirements file, the BL4SDetectorShifter program uses the BL4S analysis library(libBL4S.so). The EventDisplayBL4S in addition uses the BL4SMon library(libBl4SMon.so). The code for the latter is in the monitoring subdirectory of the BL4SExtras repository: https://svnweb.cern.ch/cern/wsvn/bl4sextras , files: BL4SElements.C and BL4SMonitoringDetectors.C.

Monitoring Software BL4S 2015

For BL4S 2015 some new monitoring code has been developed. The current status is:

* DWCTracking
This program shows the performance of the DWCs by producing a number of 2D and 1D histograms. Currently these are displayed as ROOT plots in the program and not stored in OH. The hits in the DWCs are fitted to straight lines using the ROOT/Minuit packages. The DWC hits and the fitted lines are displayed in a 2D graph. The distribution of hits in the DWCs are shown in 1D histograms and differences between the fitted and measured coordinates are histogrammed to allow an estimate of the resolution. The angular distributions of the beam particles are also shown. The program uses the BL4S analysis library.

* DWCBurstDisplay
This program was developed to show a "burst" picture of the T9 beam. This could eventually be compared with the data obtained from the Webcam and the TimePix. It is based on the assumption that time stamp data can be obtained from the events read with the DAQ software. To achieve this it is proposed to add a UNIX time stamp to each event recorded with the DAQ. Based on that information it's then possible to identify particles belonging to a burst. For those, a track picture in a 2D graph can then be constructed as described above. The fitted lines can be extrapolated to the position of the Webcam to predict the hits in there. The precision of this extrapolation has to be estimated (or measured).
The distribution of hits in the DWCs are shown in 1D histograms and differences between the fitted and measured coordinates are histogrammed to allow an estimate of the resolution. The angular distributions of the beam particles are also shown. The program uses the BL4S analysis library.

-- JorgenPetersen - 2015-07-28

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Topic revision: r2 - 2015-07-29 - JorgenPetersen
 
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