Shutdown works

(return)

List of proposed works for shutdowns 2020 and later

  1. installation of new beam dump line (2020-2022) (more info)

  2. upgrade of the vacuum control system to FAIR standards (2023?)
  3. upgrade of all screens to CUPID
  4. connection of BPM readout electronics
  5. exchange of GTE2DK4 diagnostic box which includes a special, beakable SEM grid for beam size measurement. Install new, FAIR-type diagnose kammer and new grid developed for FAIR
  6. installation of additional BLMs; proposed locations: HHD, TH4 (especially TH4!)
  7. installation of Cryogenic Current Comparator (CCC) - device to measure low beam currents in DC mode
  8. prepare demagnetization cycle to have HEST optics independent on spill sequence
  9. change polarity of GTE5QD21 (y-foc), GTE5QD22 (x-foc) in the LSA (they are wrong since 1998)
  10. exchange of power converter of GHADQT53 (it is a very old type, with resistive feedback, prone to temperature drifts)
  11. camera GTH4DF8 is of a very bad quality - exchange
  12. grid GHADDG1G seem to have much lower sensitivity then other gas-filled grids. It is absolutely critical for protons in HADES
  13. it would be good to add another gas-filled grid eg. in TH2 (downstream)

List of 2020 shutdown works

  1. January: update optics to remove zero-angle dipole error (only STRENGTH files):
    • SIS18_HTM_LEGACY (GTH3MU1)
    • SIS18_TH_HTC_LEGACY (GHTCMU1)
    • SIS18_TS_HTC_STANDARD (GTS3MU1)
    • SIS18_TE_ESR_LEGACY (GTE3MU1, GTE4MU1, GTE4MU2, GTE5MU0)

List of 2019 shutdown works

hardware

  1. digitization of scintillating screen in GTH2DFA - February- done

  2. installation of WiFi in NE5 - Summer

  3. installation on new diagnose box with scintillation screen for miniCBM - Summe, here is a presentation detailing the works needed.

  4. exchange of vacuum chambers in GTH2QD21 and GTH2QD22 - Summer
  5. reparation of gitter in GTH2 - Summer
  6. reparation of GHADKY4 steerer

other tasks

  1. position steering knobs for HADES beam line - February
  2. improvements of MADX model quality
  3. cleaning of NE5 and NE8 - September
  4. design new dump line, order elements

List of 2016-2018 shutdown works (all completed)

  1. replacement of vacuum ventiles
  2. rad-hard cameras in scintillating screens of GS06DFV and GTE1DF1V and digitization of signal from these cameras (still missing - iris control)
  3. digitization (cupidization) of signal from GTE5DF3V scintillating screen
  4. installation of 16 BLMs along the HADES beam line
  5. installation of 2 new secondary emission foils in HADES beam line
  6. installation of star-shaped vacuum chamber in manets GHADQD11 and GHADQD12 for aperture optimization
  7. installation (move from HTM beam line) of halo monitors to HADES beam line
2020-06-17 16:00