ICEPP MicroMegas Activities

 

General Information

• National Meeting Time : Weekly Thursday 10:00-12:00(CERN), 17:00-19:00(Tokyo) : Meeting agenda
  • Mailing list (ICEPP) : icepp-micromegas@cernNOSPAMPLEASE.ch
• CERN MicroMegas meeting : Tuesday 16:00-(CERN)
• Mailing list (CERN) : atlas-muon-micromega@cernNOSPAMPLEASE.ch, hn-atlas-muonsw@cernNOSPAMPLEASE.ch, atlas-muon-NSW-elx@cernNOSPAMPLEASE.ch, atlas-muon-micromegas-simulation@cernNOSPAMPLEASE.ch
• Members (Tokyo Univ, ICEPP) :
  • Stuff
    • T. Masubuchi (2013-)
    • Y. Kataoka (2011-)
    • T. Saito (2014-)
    • T. Kawamoto (since long time ago)
  • Students
    • S. Terao (2013-)
    • M. Yamatani (2014-)
    • T. Yamazaki (2014-)
  • Old members
    • Y. Kawanishi (2012-2014)

 

Activity

ICEPP-Kobe Joint meeting

• 1st meeting (2014 June)
• 2nd meeting (2014 July)
• 3rd meeting (2014 August)
• 4th meeting (2014 Sep)
• 5th meeting (2014 Nov)

 

Beam test (in Japan)

Chamber (made in Japan)

* 10cm*10cm small chamber for test

Type	Resistive strip type	Resistive strip pitch	Amp. gap	Mesh
J1/J2	Print Screen	400um(Ladder structure)	100um	Fix
J3/J4	Sputter	200um(Ladder structure)	128um	Fix
J5/J6	Sputter	200um(Ladder structure)	128um	Removable
J7/J8	Sputter	400um(Ladder structure)	128um	Removable

mmdaq set up etc

Kobe Neutron beam test (2013.6)

• Aim of beam test
  • spark tolerance with new chamber
  • study of neutron/gamma separation and neutron flux with liquid scintillator
• beam test log : Log file
• beam test data SRS (Run 285-750) : ~kataoka/maxi82/mm/2013/icepp/APV25** (CERN)
• beam test data camac : ~kataoka/maxi82/mm/2013/camac/data (CERN)

Spring8 LEPS electron beam line (2013.11)

• Aim of beam test :
  • Position/timing resolution with charged particle
  • Angle scan and HV scan, comparison of angle/position resolution with microTPC mode
• bem test log : Log file
• beam test data SRS (Run 763-1318) : ~kataoka/maxi82/mm/2013/icepp/APV25** (CERN)
• beam test data camac : ~kataoka/maxi82/mm/2013/camac/data (CERN)

Kobe Neutron beam test(2014.1)

• Aim of beam test : *??
• beam test log : Log file
• beam test data : ~kataoka/maxi82/mm/2013/icepp/APV25** (CERN)

Kobe Neutron beam test(2014.7)

• Aim of beam test :
  • Study of spark rate depending on beam current
  • Cosmic data taking under the neutron background environment
• beam test log : Log file
• beam test data SRS (Run130-208) : ~kataoka/maxi82/mm/2014/icepp/APV25(or APV25.processed3) (CERN)
• beam test data camac ::?

Beam test (in CERN etc.)

Preparation and Requirement

Dosimetry

1. Regular dosimetry (long term)

• Requirement : CERN ID, level 1&2 safety course, radiological safety course (F), medical cirtificate

1. Short term (temporary) dosimetry : Only once per year (max. 2 months)

  * CERN ID, level 1&2 safety course

Safety course

• level 1&2 Link
• Radiological safety training EDH->Training Catalogue->Safety

Before test beam shift

• Access Request in EDH (Select your shift area,(e.g. Blg.887 H6 and 0157-R-012)

Chamber in CERN beam test

Type	Resistive strip type	Resistive strip pitch	Amp. gap	Drift gap	Mesh	Comment
T2	Print Screen	400um	128um?	5mm		Similar to Jx chamber?
Tmm2/3/5/6	Print Screen	250um	5mm	?	Fix	Used for telescope in test beam, XY 2D readout (X readout is in parallel with resistive strip)
TQF	Print Screen	400um	?	5mm		Resistive foil and read-out has been mis-alighed (normal, +1dgee, -2 dgree, half-pitch shift)
ExMe	Print Screen	400um	?	5mm		Mesh opening window, diameter difference
MSW1	Sputter	415um	128um	5mm		MicroMegas for Small wheel
MSW2	Sputter	415um	128um	5mm		MicroMegas for Small wheel

CERN beam test DAQ set up and how to run

• Run SRSDCS_1.5.4 from desktop
  • connect the system to the FEC 10.0.0.14 (/home/dateuser/Desktop/MMs_30sept_2014_DAQ/config/XXXXX), load configuration file sdc_FEC_14.txt
  • open SRSDCS program and connect to the 10.0.0.14, apply the external trigger and enable the data acquisition
• Starting the program
  • ./mmdaq3_server (/home/dateuser/Desktop/MMs_30_sept_2014_DAQ/mmdaq3-server)
  • ./browser --online (/home/dateuser/Desktop/MMs_30sept_2014_DAQ/GUI)
  • From GUI, load the config file (e.g. /home...../Config/TestBeam_MMSW.../DAQ_config.xml)
• Run (pedestal)
  • select Pedestals n Run type, check "write the file", start run (change trigger switch in rack)
  • check the quality
• Run (physics)
  • check trigger switch,
  • load pedestal file, check "write the file", then select Physics in Run type

CERN PS(2014.8) : T9 beam line (bld. 157), 10 GeV pi or p.

• Aim of beam test :
  • MSW : Uniformity check (HV, position scan)
  • TQF1 : Resistive foil, readout strip alignment check
  • ExMe : Pillar choice check
• Electric log book : e-log
• beam test data : lxatut01:~/kataoka/maxi82/mm/2014.cern/TestBeam_08_2014/data (CERN, b188) or /afs/cern.ch/user/m/muoncali/afs_workspace/public/ (CERN afs)

CERN PS(2014.10) : T10 beam line (bld. 157), 10 GeV pi or p

  * Aim of beam test :

• • MSW : Uniformity check (HV, position scan)
  • TQF1 : Resistive foil, readout strip alignment check
  • ExMe : Pillar choice check
• Electric log book : e-log
• beam test data :

CERN SPS(2014.10) : H6 beamline (bld. 887), Control room at HNA447), 120 GeV pi+ 10kHz; spill duration =9s

• Aim of beam test
  • VMM1/2 chip test
  • Combined test beam with sTGC
  • Angular scan of TQF1
  • Mesh study with ExMe (70/30 vs 50/28) (open window/diameter)
  • MSW2 studies
• Electric log book : e-log
• beam test data : (to be filled)

CERN SPS (2014.11) :

• Aim of beam test
  • Magnetic field
  • VMM2 chip test

QA,QC for NSW mass production

Resistivity check

Strip pattern scan

Useful Info

TDR

Technical Design Report

ATLAS MicroMegas

MicroMegas Twiki

Training (software)

mmdaq etc

VMM1 info (a bit obsolete)

• VMM1_Guide_v1
• VMM1_datasheet_v3
• Interpreting_VMM1_Data

 

Talk/Paper

 

Link

• Garfield++ : Simulation of tracking detectors : Link
• Geant4 : Simulation chamber geometry etc : Link
• Spice : Simulation of electronic circuit : Link

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-- TatsuyaMasubuchi - 20 Oct 2014