Silicon - Proton Irradiation at KEK

Prediction on leakage current, full depletion voltage

• Time variation of the full depleton voltage. The top figure: the full depletion voltages of the 300 micron Si (PIN photodiodes) as a function of the normalized time with the time of minimum voltage for different temperatures. The bottom figure: the time of minimum voltage as a function of temperature. 97/7/30

• Leakage current annealing
• Leakage current: dependence on fluence and temperature, in Semi-log scale

• Full depletion voltage after 10 days of irradiation, and 1 day after beam-off and 10 day after beam-off, which postscript form ( 1 day after beam-off and 10 day after beam-off)

Irradiation hardwares:

• Dimension of ceramic board (pdf, ps), 98/10/13
• CERN PS ATLAS SCT irradiation facility

PS operation schedule

• Latest PS operation schedule

Irradiations

• 01 April at CERN

  • Summary of irraidation sensors, 01/04/06
  • I-V measurements with Al-meal grounded (=strip bias), 01/04/06
  • I-V measurements with Al-meal floating (=disconnected from strip bias), 01/04/06

• 98 Jun at KEK

  • Irradiated samples - Registration, 98/8/21
  • Irradiation samples, 98/8/20
  • Irradiation proposal, S. Terada, 98/5/11
  • Inspection sheets of the 10x10 PIN photodioes (Hamamatsu), 98/3/26

• 98 Jan at KEK

  • Fluence measured (pdf) , 98/4/15
  • Irradiation sample position, 98/2/16
  • Irraidiation samples on ceramic boards, and photo's (jpeg files), samples 1&2, samples 3&4, samples 5&6, 98/1/19
  • Irradiation detector assembly (pdf), (ps file), 98/1/4
  • Irrddiation and subsequent beamtest plan, 97/12/16

• 97 Nov at KEK

  • Mechanical samples at 3x10^14 p/cm^2 , 97/11/4

• 97 Aug at CERN
  Mechanical samples irradiated at CERN in Aug., 97, 97/10/29

• 97 Apr: 5th run

  • April 9, 97 run outline
    
  • Samples and registeration #'s
    
  • Temperature history

• 96 Oct: 4th run
  Oct. 5th from 10:10 to 16:21. Although it took about 8 hours, the actual exposure time was 2 hours because the beam was off due to a LINAC trouble at 11:00 till 15:10 for about 6 hours.
  96 Oct run outline

• 96 Jun 21: 3rd run
  Fluence measurement,
  T363 Outline

• 95 Nov. 22: 2nd run
  Temperature history
  Activity measurement of the 6cm x 12cm LBL module
  Sample list
  PC board for nn75AC detectors at KEK ( Temporary, Future)
  Communications( Sample list (draft), mail#2, mail#1)

• 95 July 19: 1st run
  Cold Box,
  Moving Stage,
  Sample list, Note on the samples
  Drawings of some samples ( PC boards of samples from HPK, PC boards of sample 1, PC boards of sample 2, PC boards of samples 3 )
  Checking source registration

• June 21- July 7: Survey run (PIN photos, Al foils)