BigBite GRINCH

GRINCH Meeting

• GRINCH Meeting

GRINCH

Documents

• SLAC DIRC Collaboration
• Test of a large scale prototype of the DIRC, a Čherenkov imaging detector based on total internal reflection for BaBar at PEP-II --10/01/1997
• Status of the DIRC detector at BaBar: early operational experience --10/11/2000
• The DIRC particle identification system for the BaBar experiment --02/11/2005
• SHMS cherenkov -- 01/2011
  • SHMS cherenkov -- 08/05/2008
  • SHMS cherenkov -- 06-24-2009
• The CO2 gas Cherenkov detectors for the Jefferson Lab Hall-A spectrometers -- 12/12/1997
• Hall A Technical Note for the BigBite Cerenkov Detector --12/21/2010
• The Magnetic Distortion Calibration System of the LHCb RICH1 Detector --06/04/2012
• Boron and thermal neutron interactions on borosilica window photomultiplier tubes (LHC-Study) --07/24/2012
• Neutron Note --07/24/2012
• A GEANT Simulation of Background Rate for transversity --07/24/2012
• Cherenkov kinematics quick calculator --04/05/2005
• GRINCH technical report -- Todd Averett 08/17/2012
• The GRINCH design technote (v2) --06/18/2013
• Prototype GRINCH magnetic measurements -- NC A&T 06/24/2013
• Magnetic Measurements 20 Amps(Oct 8, 2015) DOC file / PDF file
• Magnetic Testing 2nd test 100 Amps(Nov 9, 2015) DOC file / PDF file

Design

• Top view layout of GRINCH --(cm) Red is entrance, Yellow is exit, Green is front surface of PMT array 04/04/2013
• PMT Box Prototype --(cm) 04/04/2013
• PMT Box --(cm) 04/04/2013
• Top view layout of GRINCH by Susan Esp -- 08/20/2013
• Mirror CAD -- 11/08/2013 (including clean room drawing)
• PMT Array Box CAD -- 01/23/2014
• GRINCH Final Assembly Drawings (PDF) -- 08/04/2018

Gas Radiator

• C₄F₈O Safety Data Sheet --11/16/2011
• C₄F₈O Transmission --06/21/2012

According to figure on page 4, <math> ABS_L=7424.75cm </math>

<math> I=I_0 e^{\lambda/ABS_L} </math>

• Test in d2n

Mirror

• Light-weight spherical mirrors for Cherenkov detectors -- 07/24/2012
• Mirror reflectivity technical note -- 11/07/2012
• Mirror reflectivity report -- 09/19/2012
• Mirror reflectivity vs wave length of photon with fit parameters -- 09/20/2012
• Operation Manual for Reflectivity Measurement Setup of Free Electron Laser Facility at Jefferson Lab -- 01/04/2013
• Reflectivity for mirror samples. -- 01/09/2013

• GRINCH mirror technical report. -- Scott Barcus 09/10/2014

PMT

• 29mm (1.13") photomultiplier 9125B --- Quantum Efficiency Fit for this PMT
• Overview of the DIRC detector. Chapter 6 discusses the PMTs. --- 08/17/2012
• Describes the glass corrosion of the PMTs. --- 08/17/2012
• Table comparing the PMTs before and after gluing --- 08/17/2012
• Setup and Procedure for DIRC PMT Testing --10/03/2011 Eric Jensen
  • PMT Test Results
• Presentation I gave at a Hall A meeting. Briefly summarizes work done by the students I supervised this summer. The first half is on PMT testing, the 2nd half is on the SciFi construction. --- 08/17/2012 Eric Jensen
• Poster done by one of the summer interns. Summarizes the repair and testing of the PMTs --- 08/17/2012
• DAQ diagram for PMT Test --- 11/18/2012 (Procedure can be found in GC Elog)
• PMT Gluing Procedure
• PMT Gluing Procedure by Scott‎ --- Scott Barcus 02/07/2013
• 02/07/2014: Short update on PMT testing @ JMU --- Ioana Niculescu
  • pedestal, 1pe, and signal for PMT #2043 @ 900V
  • pedestal, 1pe, and signal for PMT #2044 @ 1050V
  • gain vs HV for a few of the PMTs tested.
• 08/14/2014: Short update on PMT testing @ JMU --- Gabriel Niculescu
  • Finished testing 360 PMTs, another 60 in progress.
  • Ordered various UV LEDs (350 nm, 375 nm, and 400 nm). Can buy lower wavelength if necessary ($$).
  • Table with PMT parameters is here
  • Tried to match PMTs in groups of 8 (PDF)
  • Text - only details here
  • Output file with the PMT grouped by gain
• WLS Paint Technical Report by Scott‎

Geant4 Simulation

svn checkout svn+ssh://username@wm-jlab.physics.wm.edu/home/username/SVN/SVN .

• Side view of A1n Simulation Geometry (cm,deg)‎ --- Huan Yao 06/18/2013
• Top view of A1n Simulation Geometry (cm,deg)‎ --- Huan Yao 06/18/2013
• Efficiency for e- with uniform Bigbite magnetic field and theory-modeled mirror locations.‎ --- Huan Yao 09/26/2013
• Efficiency for pi- with uniform Bigbite magnetic field and theory-modeled mirror locations.‎ --- Huan Yao 09/26/2013
• Huan_simulation_wo_coated_iron_2016 Uploaded by C. Ayerbe 07/19/2017

Prototype Gas Cherenkov Detector

• A1n Gas Cherenkov Detector Report by Bo -- 03/09/2012
• Prototype II top view,Left view,Front view --04/26/2012
• OSP for Prototype Gas Cherenkov Detector Testing during g2p and gEp experiment --11/16/2011
• Support plate submitted to machine shop. Include top,front view of supporter. Top view of plate. Top view of front and side rail. --01/31/2012
• Prototype Gas Cherenkov V2 --11/21/2011
• Parasitic Beam Test Request --12/05/2011
• Hall A Floor for Prototype Gas Cherenkov Detector Testing --12/05/2011 Move the whole det to the RHRS.
• PMT Calibration --03/12/2011
• Lucite --05/03/2011
• Prototype gas Cherenkov Detector Report -- Huan Yao 05/23/2012
• Prototype gas Cherenkov Detector Thesis -- Christine MacLean 05/23/2012
• TEST 2015
• TEST 2016
• TEST 2017 Includes Inventory

DAQ for Prototype

• Prototype Gas Cherenkov Electronics and HV, ROC connections. --04/05/2011
  • Spare cables --02/01/2012
  • Data sheet---Lecroy 4616, VME Trigger Interface module, Lecroy 222, PS 711,PS 776, PS 754, PS 726, PS 706, CAEN 792, CAEN 767, CAEN 775
  • Manual---CAEN 792, CAEN 767, CAEN 775,VME Trigger Interface model, CAEN A992
• Cable Map for prototype Gas Cherenkov Electronics. --04/05/2011
• Cable Map for other detectors of prototype Gas Cherenkov detector like scintillators and lead-glass calorimeter. --04/05/2011
• CODA
• High Voltage
• ANALYZER
• VME Crate Reset
• VNC
• Scaler
• List of target encoder position (Column 4)
• A 16-channel Digital TDC Chip with internal buffering and selective readout for the DIRC Cherenkov counter of the BABAR experiment
• VETROC Tests Report by Scott‎
• Instructions for Running the DAQ by Scott‎

RUN INFO

Prototype Run Inforamtion READ ONLY: guest/guest

GRINCH ASSEMBLY

• Equipment List
• Pictures
• PMTs INSTALLED INFORMATION
  • PMTs installed info (EXCEL FILE)
  • PMTs installed info (PDF FILE)
  • Original TXT file form JMU (1st part)
  • Original TXT file from JMU (2nd part)
• GRINCH TEST AT TED HIGH BAY
  • Original ADC cable map (excel)

HELP

tdaver@jlab.org byale@jlab.org