L1TOccupancyPlots Guide

Detector Geometry

RPC Geometry
Description: 1056 RPCs in total 1 Disk: 3 Rings(Ring 1, the inner one, is not installed) And CPPF is the new readout system of Endcap RPCs Each Disk has 6 Sectors and 36 Chambers(segments)	Longitudinal :	Cross :

Technicalities of producing Occupancy Histograms

• Sample: /SingleMuon/Run2018B-v1/RAW with run=317435, 99k events
• Release: CMSSW_11_0_0_pre7
• Main file: DQM/L1TMonitor/src/L1TStage2CPPF.cc
• MR on Github: https://github.com/cms-sw/cmssw/pull/28059
• Use standard Release Validation workflow: runTheMatrix.py --what standard -l 136.867
• Here you should be noticed that the illustration plots are not corresponded to technicalities above, you can find the root file in the end.

List of Input Histograms

Ring vs Disk
Description: Follow similarly the RPC Occupancy plots: Ring(Y axis) vs Disk (X axis). Each Disk (station) contains 3 Rings(Ring 1, the inner one, is not installed) Each bin in X axis corresponds to each Disk One Hit (RPCDigi) --> one entry	Plot :
Ring vs Chamber
Description: Follow similarly the RPC Occupancy plots: Ring vs Segment. Each bin in X axis corresponds to each segment(chamber). One Hit (RPCDigi) --> one entry Example: Disk -3	Plot :
Roll vs Chamber for a certain Disk
Description: Follow similarly the RPC Occupancy plots: Ring vs Segment for each Disk. Each Ring is subdivided into 3 “rolls” in Y axis. Each bin in X axis corresponds to each segment(chamber). One Hit (RPCDigi) --> one entry Example: Disk -3	Plot :
Ring vs BX
Description: Newly added Disk/Ring vs BX Xaxis: BX(bench crossing) Yaxis: Each bin corresponds to one Ring in one Disk One Hit (RPCDigi) --> one entry	Plot :
Chamber vs Strip
Description: Segment vs Strip for each Ring. Xaxis: Each Ring contains 3 rolls, each roll cover 32 strips, each bin correspond to each strip Yaxis: Each bin corresponds to one segment (or chamber) One Hit (RPCDigi) --> one entry	Plot :

List of Output Histograms

Ring vs Disk
Description: Follow similarly the RPC Occupancy plots: Ring(Y axis) vs Disk (X axis). Each Disk (station) contains 3 Rings(Ring 1, the inner one, is not installed) Each bin in X axis corresponds to each Disk One Hit (RPCDigi) --> one entry	Plot :
Ring vs Chamber
Description: Follow similarly the RPC Occupancy plots: Ring vs Segment. Each bin in X axis corresponds to each segment(chamber). One Hit (RPCDigi) --> one entry Example: Disk -3	Plot :
Roll vs Chamber for a certain Disk
Description: Follow similarly the RPC Occupancy plots: Ring vs Segment for each Disk. Each Ring is subdivided into 3 “rolls” in Y axis. Each bin in X axis corresponds to each segment(chamber). One Hit (RPCDigi) --> one entry Example: Disk -3	Plot :
Ring vs BX
Description: Newly added Disk/Ring vs BX Xaxis: BX(bench crossing) Yaxis: Each bin corresponds to one Ring in one Disk One Hit (RPCDigi) --> one entry	Plot :
Chamber vs Strip
Description: Segment vs Strip for each Ring. Xaxis: Each Ring contains 3 rolls, each roll cover 32 strips, each bin correspond to each strip Yaxis: Each bin corresponds to one segment (or chamber) One Hit (RPCDigi) --> one entry Known Issue : Outputs are empty, because the strip information has not been stored in CPPFDigi	Plot :
Channel/board/EMTF_link/EMTF_sector vs Chamber
Description: Channel/board/EMTF_link/EMTF_sector(Y axis) vs Chamber(X axis). One Hit (RPCDigi) --> one entry Known Issue : board, channel, EMTF_sector, EMTF_link, are always -99	Plot :
Theta distribution of certain Ring
Description: Newly added Hits vs Theta Xaxis: Theta Yaxis: Each number corresponds to one Hit (RPCDigi) --> one entry	Plot :
Phi distribution of certain Ring
Description: Newly added Hits vs Phi Xaxis: Phi Yaxis: Each number corresponds to one Hit (RPCDigi) --> one entry	Plot :
Phi distribution of certain Ring

Attachment

Here is the root file containing subdirectory of "L1TCPPF": DQM_CPPF.root

-- HanwenWang - 2019-02-14