PS/SPS User Meeting

Europe/Zurich
ZOOM

ZOOM

Eva Barbara Holzer (CERN)
Description

https://cern.zoom.us/j/63913530325?pwd=NHh2VEtQSkVEMXFaQlRDOVYxYVd1QT09

Minutes of the PS-SPS Users Meeting held on 22nd of July 2021

PS Machine Report (Heiko Damerau)

  • See slides
  • Good performance until Tuesday morning, Tuesday afternoon cavity repair (2.5 h stop)
  • Beam stopper in TOF line blocked since yesterday evening, stop this morning for repair (cool down)
  • Beam expected back by 11:30
  • Beam to nTOF target Monday at 10:00 as scheduled; beam now at almost nominal intensity

SPS Machine Report (Giulia Papotti)

  • See slides
  • Problem with P42 persisting

SAFETY (Letizia Di Giulio)

  • See slides and flyer attached
  • COVID19 self-testing available from next Monday at 10 test stations at CERN, including EHN1 (in the coffee room)
  • This is a simple yet conclusive saliva test. Please subscribe.

nTOF (Javier Praena)

  • See slides – very successful start of beam period on Monday.

NA users tour de table

  • H2 : CMS OT (Dragoslav Lazic)
    • CMS OT has successfully completed the measurement in the magnetic field.
    • Now other CMS sensors, RADMONS and CERN Proximeters are tested in the field (all without beam).
  • H2 : NA61 SHINE (Seweryn Kowalski)
    • Currently taking beam – interleaved with finishing of installation.
    • Expect to be able to finish the program for the first beam period in time.
  • H2 : FASER CAL (Brian Petersen)
    • See slides for set-up and beam requirements
  • H4 : GIF / RD51/ CMS ECAL
    • GIF (Martin Jaekel by email)
      • All users could essentially finish their program.
      • Pre-dump not yet commissioned (time missing during the beam-line set-up.
      • The bending magnet was tested but is not yet conclusive by how much the muon beam can be deviated with it.
      • GIF community thanks everybody involved in allowing the start-up to happen in this difficult circumstances!
    • RD51 (Eraldo Oliveri)
      • See slides
      • 3 out of 4 set-up were fully completed. The 4th set-up covered the most important part of the measurement.
      • Highly appreciative of the support from all the teams, who made this possible!
    • CMS ECAL (Simone Pigazzini)
      • E beam set-up and beam monitor commissioning progressing hand in hand, all going well so far.
    • LHCb CAL (Matteo Salomoni)
      • Handover organized for Saturday. No crane required.
  • H6: ALICE ITS3 / ATLAS MALTA / NUCLEON
    • Dipanwita: the T4 target was exchanged for a longer target, which will improve the quality of the electron beams in H6 and H8
    • ALICE ITS3 (Francesca Carnesecchi)
      • Staying on a parasitic user.
    • ATLAS MALTA (Ignacio A.)
      • Started to take beam on Sunday already
    • NUCLEON (Igor Kovalev)
      • Will continue with hadron beam until Friday or Saturday
    • ATLAS ITK (Andre Rummler)
      • ACONITE telescope now 80% operational, setting up progressing well
      • Will take pions with 120 GeV/c as in previous years
      • Beam position very important (0/0 position)
  • H8: ATLAS RPC / LHCb / CMS MTD / FASER Preshower / ATLAS TRT
    • ATLAS RPC dropped out due to detector damage
    • LHCb
    • CMS MTD (Badder Marzocchi)
      • Almost finished data taking.
      • Will find a ‘parking position’ inside the zone, where the set-up can stay until the next beam period in October.
    • FASER Preshower (Magdalena Munker)
      • All going well, beam 180 GeV/c pions
    • ATLAS TRT (Konstantin Vorobev)
  • K12: NA62 (Jurgen Engelfried)
    • Ready to take beam; some muons have arrived – started data taking for testing
    • Johannes Bernhard:
      • P42 set-up and problem investigation for 11 days now, including several accesses.
      • After the polarity of one newly installed magnet was fixed, the beam goes a few hundred meters further in the P42 line.
      • The T4 target was changed to a longer target, to have less intently in P42 to ease the investigations (allows for a transversally wider beam in the line).
      • Suspect still a combination of problems.
      • New beam instrumentation will be installed tomorrow.
  • M2: COMPASS (Jan Matousek)
    • Progressing according to schedule presented last week. Setting up the trigger now.
    • Safety clearance still requires some clarifications – urgent now.
    • New He3 pipe did not fit. Suspect that the old one did not fit either and that it was installed with mechanical stress, which could explain why it imploded eventually. New pipe now corrected and installed properly.
    • Currently installing the He4 pipe and using the time to repair some broken channels.
  • AWAKE (Edda Gschwendtner)
    • Currently proton beam being set-up to the plasma source.
  • HiRadmat (Pascal Simon)
    • Facility is ready for beam
    • Users preparing their set-up

Supercycles, Wobbling, Target intensities

See INDICO agenda for details

AOB

See INDICO agenda for details

Minutes by E.B. Holzer

There are minutes attached to this event. Show them.
    • 11:00 11:05
      PS machine report 5m
      Speakers: Alexander Huschauer (CERN), Ana Guerrero Ollacarizqueta (CERN), Benoit Salvant (CERN), Bettina Mikulec (CERN), Denis Gerard Cotte (CERN), Frank Tecker (CERN), Heiko Damerau (CERN), Matthew Alexander Fraser (CERN)
    • 11:05 11:15
      SPS Machine report 10m
      Speakers: Francesco Maria Velotti (CERN), Giulia Papotti (CERN), Hannes Bartosik (CERN), Kevin Shing Bruce Li (CERN), Verena Kain (CERN)
    • 11:15 11:20
      Safety 5m
      Speakers: Evelyne Dho (CERN), James Devine (CERN), Letizia Di Giulio (CERN)
    • 11:20 11:25
      nTOF 5m
      Speakers: Alberto Mengoni (ENEA & INFN, Bologna), Antonio Javier Praena Rodriguez (Universidad de Granada (ES)), Michael Bacak (CERN)
    • 11:25 12:00
      NA users tour de table 35m
      Speakers: Alexander Gerbershagen (CERN), Bastien Rae (CERN), Brian Petersen (CERN), Dipanwita Banerjee (CERN), Jan Matousek (Charles University (Prague, CZ)), Johannes Bernhard (CERN), Martin R. Jaekel (CERN), Michael Lazzaroni (CERN), Nikolaos Charitonidis (CERN)
      • H2: CMS OT / NA61 SHINE / FASER CAL 5m
        Speakers: Brian Petersen (CERN), Dragoslav Lazic (Boston University (US)), Marek Gazdzicki (Goethe University Frankfurt (DE)), Piotr Podlaski (University of Warsaw (PL)), Seweryn Kowalski (University of Silesia (PL)), Szymon Pulawski (University of Silesia (PL))
      • H4: GIF / RD51 / CMS ECAL / LHCb CAL 5m
        Speakers: Dragoslav Lazic (Boston University (US)), Eraldo Oliveri (CERN), Iouri Guz (Institute for High Energy Physics of NRC Kurchatov Institute (R), Martin R. Jaekel (CERN), Richard Jacobsson (CERN)
      • H6: ALICE ITS3 / ATLAS MALTA / NUCLEON / ATLAS ITK 5m
        Speakers: Andre Rummler (CERN), Miljenko Suljic (CERN)
      • H8: ATLAS RPC / LHCb / CMS MTD / FASER Preshower / ATLAS TRT 5m
        Speakers: Andre Rummler (CERN), Dragoslav Lazic (Boston University (US)), Erik Heijne (Czech Technical University in Prague (CZ)), Heinrich Schindler (CERN)
      • K12: NA62 5m
        Speakers: Hans Danielsson (CERN), Jurgen Engelfried (Univ. Autonoma de San Luis Potosi (MX)), Riccardo Fantechi (Universita & INFN Pisa (IT))
      • M2: COMPASS 5m
        Speakers: Jan Matousek (Charles University (Prague, CZ)), Stefano Levorato (INFN Trieste (IT) and CERN)
    • 12:00 12:20
      HiRadMat / AWAKE 20m
      Speakers: Edda Gschwendtner (CERN), Giovanni Zevi Della Porta (CERN), Pascal Simon (CERN)
    • 12:20 12:25
      Supercycles, Wobbling , Target Intensities 5m

      Target Intensities North Area:
      Start with about 15-20 units on T2, about 30 on T4 and about 50 on T6.
      increase to 60 on T4 and 150 on T6 as soon as all parties are ready.

      T2 wobbling: no wobbling change

      T4 wobbling week 28: primary beam for P42, 180 GeV/c for H8 and 120 GeV/c for H6

      SPS supercycle:
      Without AWAKE: Standard configuration is 2 NA spills (in a supercycle of 28.8 to 36 sec); When other beams need to be set-up (e.g. HiRadMat) the supercycle will get longer (keeping 2 NA spills per supercycle).
      With AWAKE: 2 NA spills / 2 AWAKE extractions per supercycle for 2 shifts per day, standard supercycle for the remaining shift
      Parallel MD on Thursdays 22.7.: 1 NA and 1 AWAKE per supercycle (48.8 s); beam stopped 8:00 - 9:30 (mitigation test for BA1 access issues)

    • 12:25 12:30
      AOB 5m

      The T4 target was exchanged for a longer target (from 100mm to 300mm), which will improve the quality of the electron beams in H6 and H8.

      Changes to the schedule:
      ProTOV week 34 in PPE168 (instead of PPE138)
      SND HCAL and ATLAS Tilecal week 35 and 36: adapt the sharing of beam time.

      Currently no user in H8 in week 32

      Beam time cancelled:
      Medipix in July (beam delayed)
      ATLAS RPC (week 28 & 29) (detector damage)
      ATLAS NSW (week 31 & 32)

      Additional parasitic beam time:
      H6:
      ALICE ITS3 in PPE156: week 29+30
      CMS PIXELS in PPE146: week 33
      MEDIPIX in PPE146: week 33 (full week)
      ATLAS MALTA in PPE146

      H8:
      LHCb in PPE138: week 29
      CMS MTD in PPE158: week 29
      ATLAS RPC in PPE168: week 30 (+?)
      IDEA in PPE168: week 42 or 43 and (44+45)
      FASER Preshower in PPE138