-- PatriziaBarria - 11 Apr 2014


-- VallaryBhopatkar - 11 Apr 2014

FLYSUB consortium (Florida Tech, Yale University, Stony Brook University, Univ. of Virginia, and Brookhaven National lab) performed beam test at FNAL in Oct 2013. Beam test was conducted at MT6 station in meson test beam area. There were 19 detectors had been tested in this beam. Florida Tech and Univ. of Virginia were using same station for testing 10 different GEM detectors. The details are as follows:

Florida Tech: 1 (10cm x 10cm) GEM detectors (as a Tracker), 1 (1m long) CMS large area prototype III GEM detector, 1 (30cm x 30cm) GEM detector with ZigZag readout, 2 (10cm x 10cm) GEM detectors with Zigzag readout.

Univ. of Virginia: 2 (10cm x 10cm) GEM detectors (as Tracker), 1 ( 50cm x 50cm) GEM detector (as a Tracker), 1 ( 50cm x 50cm) GEM detector, 1 (1m long) GEM detector with (UV readout)

All trackers had 2D readout board with internal gap configuration 3/2/2/2mm

CMS GEM had internal gap configuration 3/1/2/1 mm

Gas mixture used in all detectors: Ar/CO2 70:30

Beam Energy used 120GeV Proton beam, 35GeV Mixed hadron beam (CMS Measurements)

We used DATE (DAQ from Alice) to take data with RD51 SRS system through APV 25 hybrid chip and data analyzed by AMORE package(FL Tech version).

Beam test schedule (Oct2- Oct22)

Sep 27 - Sep 29 Detectors were tested before installing in the beam line

Sep 29 - Oct 1 Detectors installation in beam line as well as all electronics setup

Oct 2 - Oct 22 Beam test

Oct 8 Patrizia arrived at Fermilab to join FL Tech group in beam test efforts

Oct 10 – Oct 22 CMS detector was tested in beam

All pedestal files were taken at 2000V for all detectors and each file contained 5K events.

During data taking all trackers were set at 4000V

CMS GEM detector measurements:

  1. High Voltage Scan: Voltage range 2900V – 3350V

    Each file has 15K

  2. Position Scan: Operating Voltage 3320V

    Data was taken at three different APV position

    1. Upper APV 2. Middle APV 3. Lower APV

    Each file contains 15K events

  3. High Statistic Data: Operating Voltage 3320V

    Four Data files, each with 100k events. Last run was not finished due to the beam loss

    (Note: Run 2-3 have most uncorrelated events, we are still exploring the data)

-- VallaryBhopatkar - 11 Apr 2014

11/10/2013 10:00 am

  • Check gas: Ar/CO2 (70:30) has 1800psig, Ar/CO2 (80:20) has 1800psig
  • Gas flowing rate ~25 unit (from flow meter)
  • Apply voltages to all detectors, wait for the beam
  • detectors seem all in good condition
11/10/2013 5:45 pm
  • Beam is back, 32GeV mixture hadrons, rate ~460 counts/spill, not as stable as expected
  • Take new run 001 Pedestal (5k Events)
  • Rate from DATE is 2000 events/spill
  • Time window=9
  • HV setting as below
Detectors HV
Tracker 2 (Uva 10cm) 1800
Tracker 3 (Uva 10cm) 1800
SBS1 (Uva 50cm) 1800
Solid/EIC (Uva 1m) 1800
CMS/EIC zz (FIT) 1600
S4 (FIT 30cm) 2000
10cm zz 2 (FIT) 2000
10cm zz 1 (FIT) 2000
Tracker 4 (Uva 50cm) 1800
Tracker 1 (FIT 10cm) 1100

11/10/2013 9:30 pm

  • changeTime window=6
  • set time delay in FEC for each detector
IP (FEC#) Time Delay (FEC From 60 to 63 (FEC4) From 60 to 62 (FEC3) 60 (FEC5) 60

  • start taking real data: New Run 001 (25k events)
  • Rate from DATE is 400 events/spill
  • HV setting as below
Detectors HV
Tracker 2 (Uva 10cm) 1800?
Tracker 3 (Uva 10cm) 3950
SBS1 (Uva 50cm) 4125
Solid/EIC (Uva 1m) 4100
CMS/EIC zz (FIT) 3150
S4 (FIT 30cm) 4150
10cm zz 2 (FIT) 4050
10cm zz 1 (FIT) 4050
Tracker 4 (Uva 50cm) 4100
Tracker 1 (FIT 10cm) 4100

  • take New Run 002 Pedestal (5k events): beam intensity higher and stable
  • last run recorded as the 1st point of 10cm zz's
  • table moved 3.5 cm up (vertically), then 3.5 east (horizontally) so the beam hit in 2nd point in the frame below
  • Take data fro 2nd point as Run 002 LUP (35K events), 6 time window
12/10/2013 12:36 am
  • table moved 7 cm west (horizontally), take data for 3rd point as New Run 003 LRP (35k events), 6 time window
12/10/2013 1:39 am
  • table moved 7 cm down (vertically), take data for 4th point as New Run 004 DRP (35k events), 6 time window, Trigger rate 5951/spill, DATE rate 673/spill
12/10/2013 2:39 am
  • table moved 7 cm est (horizontally), take data for 5th point as New Run 004 DUP (35k events), 6 time window

Topic attachments
I Attachment History Action Size Date Who Comment
PDFpdf FNAL_BeamTest_DailyUpdatev.pdf r1 manage 531.0 K 2014-04-11 - 17:35 PatriziaBarria  
Unknown file formatxlsx FNAL_BeamTest_Summary.xlsx r1 manage 28.8 K 2014-04-11 - 17:38 PatriziaBarria  
JPEGjpg frame.jpg r1 manage 38.7 K 2014-04-11 - 16:58 PatriziaBarria  
Edit | Attach | Watch | Print version | History: r2 < r1 | Backlinks | Raw View | WYSIWYG | More topic actions
Topic revision: r2 - 2014-04-11 - VallaryBhopatkar
    • Cern Search Icon Cern Search
    • TWiki Search Icon TWiki Search
    • Google Search Icon Google Search

    MPGD All webs login

This site is powered by the TWiki collaboration platform Powered by PerlCopyright & 2008-2023 by the contributing authors. All material on this collaboration platform is the property of the contributing authors.
or Ideas, requests, problems regarding TWiki? use Discourse or Send feedback