ICCHIBAN project

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Experiment Information for ICCHIBAN2001
Beam Characteristic of Intercomparison
  1. During the first set of ICCHIBAN Exposures at HIMAC, C and Fe ions at energies of 400 MeV/u at extraction from synchrotron, will be available.
  2. The beam profiles will be tuned as 20 mm diameter circles.
  3. The intensities will be tuned several particles per spill (pps) to 103 pps. Here, spill is 3.3 seconds and beam on time is about 0.7 seconds in a spill.

Detectors to be provided by Working Group

  1. Plastic Scintillation Counter to measure beam intensity. (W:100mm, D:100mm, T:0.2mm)
  2. Position Sensitive Silicon Semi-conductor Detector to estimate beam profile. (W:45mm, D:45mm, T:0.325mm)
  3. Silicon Stack Detector to measure charge (Z), differential energy loss (dE/dx) and (in some cases) total energies of ions. (40mm diameter, T:5 mm and 20mm diameter, T:7mm)
  4. Cherenkov counter to measure velocities of ions.
  5. Plastic Nuclear Track Detector (CR-39) for precise beam profile and beam intensity.
(1. and 2. Will be available throughout the exposure)

Beam Characteristics to be provided to participants

  1. Primary incident ion
  2. Energy of ion at extraction from synchrotron.
  3. Beam Profile (by PSD's, CR-39 and a fluorescence screen)
  4. Time structure of beam spill from monitor of accelerator
  5. Total number of ions and/or average beam intensity (by Scintillation Counter and CR-39)
  6. Total energy distribution of ion (by Si stack)
  7. (Velocity of ion (by RICH))
  8. Calculated energy of ion at each detector (by computer calculation)

Presentation of Results

  1. Participants will report the result within six months after the exposure. The WG will gather the reports and make them available to the participants and the OC will discuss the results and report to the WRMISS, beginning with the 2002 meeting.
  2. After consultation with the WRMISS participants, published results will be made available to the scientific community: (e.g. print, e-mail, FTP or web site).