Presentation is loading. Please wait.

Presentation is loading. Please wait.

Kondo GNANVO University of Virginia (UVa) Update on GEM Activities for the 12 GeV Program in Hall A at JLab.

Similar presentations


Presentation on theme: "Kondo GNANVO University of Virginia (UVa) Update on GEM Activities for the 12 GeV Program in Hall A at JLab."— Presentation transcript:

1 Kondo GNANVO University of Virginia (UVa) Update on GEM Activities for the 12 GeV Program in Hall A at JLab

2 K. Gnanvo - WG5 RD51 Coll. Meeting, Stony Brook University, NY Outline GEM trackers for the Super BigBite Spectrometer (SBS) APV25-MPD Readout for SBS Test of APV25 systems at UVa. 2

3 Super Bigbite Spectrometer (SBS) in Hall JLab K. Gnanvo - WG5 RD51 Coll. Meeting, Stony Brook University, NY Large luminosity Moderate acceptance Forward angles Reconfigurable detectors General Purpose Spectrometer for 12GeV DIS and SIDIS experiments High Luminosity Spectrometer: /cm 2 /s, High background: 500 kHz/cm 2 (low energy photons mainly) General Purpose will be used in different configurations for 12GeV nucleon elastic form factor and SIDIS experiments Forward angle, Large acceptance, Good angular and momentum resolutions: 0.2 mrad, 4-8 GeV/c 3

4 K. Gnanvo - WG5 RD51 Coll. Meeting, Stony Brook University, NY 4

5 APV25-MPD Readout Electronics for SBS GEM FEC 4.0 MPD DAQ 75 mm 49.5 mm Passive backplane (optional) 2D readout Up to 40m twisted, shielded copper cable (HDMI) tested Main features: Use analog readout APV25 chips 2 active components: Front-End card and VME64x custom module Backplane acting as signal bus, electrical shielding, GND and mechanical support Flex adapters available for standard PANASONIC GEM connectors. 5

6 K. Gnanvo - WG5 RD51 Coll. Meeting, Stony Brook University, NY APV25 FE Card APV25 chip on Front End card based on COMPASS original design Bus like digital lines (CLOCK, trigger and I2C) & Low Voltages Single differential line for the ANALOG out ZIF connectors on the GEM side 800 front-end cards needed Digital IN/OUT + LV Analog output ZIF Connectors Diode protection against spark APV25 Chip 6

7 K. Gnanvo - WG5 RD51 Coll. Meeting, Stony Brook University, NY MPD: Multi Purpose Digitizer MPD VME controller hosts the digitization of the analog signals coming from the front-end card. Handle all control signals required by the front end cards (trigger/clock/I2C) Compliant to the JLab/12 VME64x VITA 41 (VXS) standard Designed with the possibility to detach the ADC subcomponent to extend FEC-VME64x distance (expected to be ~7 m) 50 modules required 7

8 K. Gnanvo - WG5 RD51 Coll. Meeting, Stony Brook University, NY APV25-MPD DAQ Software 8

9 K. Gnanvo - WG5 RD51 Coll. Meeting, Stony Brook University, NY APV25-SRS Readout Electronics Main features of the Scalable readout System (SRS): 3 main components: APV25 Front-End card and ADC card + Digitizer board Data transfer through Gb Ethernet via UDP using DATE software developed by ALICE DAQ Decoder + basic data analysis with AMORE Framework provided by ALICE DAQ 9

10 K. Gnanvo - WG5 RD51 Coll. Meeting, Stony Brook University, NY MPD data 10 X-axis t1 Y-axis t1 X-axis, t ns Y-axis t ns X-axis t Y-axis t X-axis, t ns Y-axis t ns X-axis t ns Y-axis t ns X-axis, t ns Y-axis t ns

11 K. Gnanvo - WG5 RD51 Coll. Meeting, Stony Brook University, NY APV25-SRS raw data ns time samples 128 ADC channels

12 K. Gnanvo - WG5 RD51 Coll. Meeting, Stony Brook University, NY Offline correction of the Common mode 12 Pedestal rms Common mode baseline varies with time sample This effect is corrected in AMORE software both for pedestal data and event data as well

13 K. Gnanvo - WG5 RD51 Coll. Meeting, Stony Brook University, NY SRS Electronics: pedestal rms vs. nb of time samples time samples6 time samples 9 time samples12 time samples ADC Counts ADC channels 13

14 K. Gnanvo - WG5 RD51 Coll. Meeting, Stony Brook University, NY Pedestal rms: SRS vs. MPD ADC counts ~ 15 ADC Counts ADC channels 5.2 ADC Counts ADC channels SRS MPD Page 14 Pedestal rms 3 times higher for the MPD w.r.t SRS This effect could be in part because the common mode baseline is not yet integrated in the MPD decoder software

15 K. Gnanvo - WG5 RD51 Coll. Meeting, Stony Brook University, NY X/Y Charge sharing: SRS vs. MPD Page 15 MPD SRS

16 Summary K. Gnanvo - WG5 RD51 Coll. Meeting, Stony Brook University, NY Page 16 Have both APV based SRS and MPD Electronics setup at UVa APV25-MPD is the readout system for the SBS GEM trackers Both system are working properly and the performances are comparable We have about 5K electronic channels available with the 2 system Data APV25-MPD system have a higher noisy in part because of common mode baseline offset not correct To do Develop apv25 FE card with Panasonic connectors for MPD system Develop a more robust analysis software package for MPD electronics. Integration of the APV25-SRS and APV25-MPD into JLab DAQ system (CODA)

17 GEM Univ. of Virginia K. Gnanvo - WG5 RD51 Coll. Meeting, Stony Brook University, NY Senior Research Scientist: Prof. Nilanga Liyanage, Dr Vladimir Nelyubin Research Scientist: Dr Kondo Gnanvo Students: Kiadtisak Saenboonruang, Chao Gu, Xinzhan Bai, Taylor Sholtz, Seth Saher … SBS Coll. Colleagues in Italy INFN Roma (Sanita) Dr. Evaristo Cisbani INFN Catania Prof. Vincenzo Bellini INFN Genova Dr. Paolo Musico Page 17

18 Backup K. Gnanvo - WG5 RD51 Coll. Meeting, Stony Brook University, NY Page 18

19 K. Gnanvo - WG5 RD51 Coll. Meeting, Stony Brook University, NY Page 19

20 K. Gnanvo - WG5 RD51 Coll. Meeting, Stony Brook University, NY 20 SRS Electronics: pedestal rms evaluation

21 K. Gnanvo - WG5 RD51 Coll. Meeting, Stony Brook University, NY Pedestal rms (ADC Counts) APV0APV1APV2 APV3APV4APV5 APV6APV7APV8 21


Download ppt "Kondo GNANVO University of Virginia (UVa) Update on GEM Activities for the 12 GeV Program in Hall A at JLab."

Similar presentations


Ads by Google