ZDC Installation

Goal of this project

Install ZDC in the LHC tunnel



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Web log

Local Test R-ZDC for Installation

(Tue) 08 Jan

  • Prof. Michael Murray visited 512-R-005(one of Korea-cms office) and he gave us 2-safety shoes.
  • went and looked around ZDC working place in Prevessin site.

(Wed) 09 Jan

  • helped Minkyoo to do CERN User registration process.
    • success without signature of Y.I CHOI who is a leader of our group. but Minkyoo had to get and give it to users office.

(Thu) 10 - (Sat) 12 Jan

  • took the basic safety course 1 2 3 in B55
  • saw and helped Laura to some electrical signal transferring test in B28-R-21
    • component-1 EM-READOUT-BOX-R

    • procedure in detail
      1. Putted an optical fiber through the em-readout-box and attached it to PMT
      2. Source laser light will be injected into the fiber for test and it will be delivered to in front of inside-optical-fiber-bundle. Then it be reflected and goes up.
      3. Assambled it and Connected all the cables on it
        1. laser singal cable was connected on the oscilloscope
        2. the injection laser cable was linked on the readoutbox
        3. HV cable also connected on readoutbox
        4. signal output cable(amplified by pmt and base) connected on oscilloscope
      4. See oscilloscope to figure out what's happen

    • history of work
      • so we did the test successfully.

Remainning questions on this week


R-ZDC Installation

(Mon) 14 Jan

  • my all edh process was stopped because of lack of basic safety course information in CERN database.
  • there's a little difference between cms convention and ZDC convention.
  • pictures will be added soon

(Tue) 15 Jan - (Wed) 16 Jan

  • optical fiber mounting socket could be flat by grinding with sand paper and tooth paste!!
  • installed right side ZDC in TAM which is located in LHC tunnel, 140m away from interaction point.
  • connect optical and HV cable on it in the tunnel
  • found all the ZDC HV cables and labeled on each cable then connected it to the NIMBIN module.

(Thu) 17 Jan

  • did the same test as what we did in B28
    • but failed.
    • Michael guessed it's because of very long cable length(around 200m)
    • we calculated capacitance of the line.

(Fri) 18 Jan - (Sat) 19 Jan

  • learned how to use the power supply module in NIMBIN rack in control room USC55.
Jan Feb Mar

DO laser test on R-ZDC EM readout box

DO laser test on R-ZDC HAD section

Install L-ZDC EM readout box on EM CAL and do the same test

Oleg will come


-- GaramHahn - 16 Jan 2008

Topic attachments
I Attachment History Action Size Date Who Comment
GIFgif EmReadoutbox.gif r1 manage 35.6 K 2008-01-30 - 14:04 UnknownUser  
GIFgif EmReadoutboxTest.gif r1 manage 77.3 K 2008-01-30 - 13:36 UnknownUser  
JPEGjpg OpticalFiberMountingSocket.jpg r1 manage 53.0 K 2008-01-30 - 16:00 UnknownUser  
JPEGjpg TestProcedure.jpg r1 manage 89.1 K 2008-01-30 - 14:48 UnknownUser  
GIFgif em-readoutbox.gif r1 manage 67.8 K 2008-01-30 - 11:32 UnknownUser Readout box of electro-magnetic section
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Topic revision: r9 - 2008-01-30 - GaramHahn
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