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CERN
PS-SPS Users Meeting for Week 14 held on April 4th, 2024
The agenda for this meeting is based upon user schedule v1.0.1, please cf. here.
News from the PS & SPS Physics Coordinator (E.B. Holzer, M. Jaekel)
Planning:
- April 4th, the user meeting will be on zoom only.
- Physics Coordination from April 2nd until April 24th (inclusive): Martin Jaekel
Using “Sps.Coordinator@cern.ch” for communication will ensure that you always reach the correct person - SPS Pb ion User Schedule being prepared by Martin Jaekel
- FOM is collecting requests for running during LS3 -> call has been closed (31.3.)
(late requests needs to be submitted before next IEFC)
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User Schedules v1.0.1 (for most of the lines until July) released: see User Webpage
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Please get in contact, if you want to take one of the week still free before June - Tanja (tetiana.shulha@cern.ch) is collecting all requests.
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2024 proton run extended by 5 (!) weeks. Waiting for the release of Injector Schedule 2.0 for details about the last weeks.
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Proton and Ion beam users: Please add “Exclusion Periods” until 2th December 2024, if you are concerned by this extension.
Very high overbooking, in particular at the end of the proton run
–> Even if the run get’s extended not all the requested beam time can be scheduled !
–> Users scheduled in parallel are often not fully compatible - requiring to operate in ‘time share’ mode!
–> Consider taking one of the available slots in the first half of 2024!
–> The slots which are currenlty marked as DRAFT in v1.1.0 are very likely to be moved by several (order of 5) weeks.
- Reminder: All beam time exceeding the limits of 2 weeks PS beam time and 1 week SPS beam time (added proton and ion beam time!) per year need the approval of one of these CERN committees: SPSC, LHCC, DRDC, INTC, RB or IEFC.
- Consider joining a DRD collaboration, if you require more beam time.
News from the Facilities Operations Meeting (FOM) (M. Jaekel)
Injector chain - Rough week with several stops. See PS/SPS presentations.
Friday 2 electrical pertubations. Cryo lost at point 6, beam stop for PS/SPS.
PS Machine Report (Ewen Hamish Maclean)
Challenging week due to various issues, but okay availability achieved considering (89%)
- various short issues with L4 (mostly chopper) throughout week
- Key issues were in PSB: Ring 3 extraction kicker fault on Friday, but intervention halted due to SF6 gas leak. Since required specialist with necessary certification + special PPE intervention postponed till after Easter. Ran throughout easter period (Fri-Wed) with PSB in degraded mode with no beam provided from ring3. OP teams were able to addapt operational cycles to work with other rings, allowing operation to continue.
- Initially expected that R3 fix could be performed in parallel with operation (reported at FOM) but following investigation Tuesday morning beam-stop for repair was required
- Tuesday afternoon PSB wirescanner suffered mechanical failure and became stuck close to beam in R4. Descided to take beam-stop Wed 8am-5pm to fix both issues.
- PS benefited from the long beam stop to also take multiple interventions on the RF cavities. C10-86 amplifier replaced, and following whole day tests C20-92 also fixed.
- Beams on all PSB rings back from 1800h on Wednesday: recovery of previous beam states during Wednesday evening. OP beams now back to operational state from Friday ~8am
- Parasitic N-TOF restored on east cycles from Tuesday afternoon
- Various invesitigations/optimization of multi-bunch LHC cycles and MTE beams ongoing.
SPS Machine Report (F. Velotti, P. Arrutia)
- Beam commissioning ongoing
- SFTPRO being setup - secondary lines being set up now
- losses in TT20 still to be optimised
- HiRadMat commissioning almost finished - first test with beam to the experimental area planned for Monday at 8:30 for 5 hours
- AWAKE beam ready with 1 ns bunch length - possible to even shrink it further is requested
Safety / Radiation Protection (Please Put Your Name Here)
nToF (M.Bacak and P.M.Milazzo)
TOF and EAST parasitic beam settings at standard physics beam conditions.
Intervention in NEAR and detector calibrations with several sources during the PSB stop on 03/04.
Data taking proceed as scheduled in all experimental areas.
East Area Beam Status (L. Nevay)
T09: Normal operation. Today will switch to electron beams. No issues.
T10: Normal operation.
T11: Off, no user.
East Area Users Tour de Table
T8 Main: IRRAD/CHARM (F. Ravotti / S. Fiore)
Normal operation. Despite issues at PS, quite good week (cumulated >2.5e16 p/w on T8, see plot below) thanks to the new high-intensity EAST_T8 spill. Access on Wednesday adjusted to match the whole day PS beam stop. In IRRAD, exchanged the dosimetry for the experiments started before Easter (iFAST, TE-MSC) weekeknd. For CHARM, BE-CEM components test continue and installed ATLAS and R2E experiments in the target area. We run until next Wednesday.
T9 Main: SHiP (Annika Hollnagel)
Link to PS East Area T9/T10 Beamline Meeting 2024-03-06 (slides):
https://indico.cern.ch/event/1387993/contributions/5835292/attachments/2813737/4911523/2024-04-06_ship-sbt_hollnagel.pdf
Easter week:
- smooth detector operation
- beam patchy
- muon measurement program basically finished :)
 |
 |
|---|---|
| detector setup | DAQ |
Monday 2024-04-01:
- vertical movement chain hoist motor refused pulling all the way up due to safety stop
- help from Aboubakr and the transport group - thanks a lot! :)
 |
 |
 |
|---|---|---|
| tilt | ‘ladder’ | temporary fix |
A few more days of beamtime left:
- now starting measurements with electron beam
- a few more measurements with muons to be conducted
- test of new SiPM board design at the end of the run
- detector decommissioning and removal from T9 planned for Tuesday 2024-04-09
T9 Incoming Main: CMS BRIL - Week 15 (Olena Karacheban)
We have a confirmation that we will have the telescope for the test beam. We will need to crane it in the T9 area together with DESY table.
We summarized our primary beam needs to PS coordinators.
We are cheching if the nitgogen disctibution with 10 mm pipe can be connected to our setup, which uses 6 mm pipe.
We filled in safety form.
We will be in toch with Dipanwita for planning of the first day.
For the telescope (Andre Rummler): telescope with exception of planes, fei4 and PI stage was stored in the east area. Other equipment was put into TREC and will be brought over by self transport.
T10 Main: ALICE ITS3 (Paolo Martinengo)
Smooth data taking, took data also during Easter and plan to continue
T10 Incoming Parallel: ALICE FoCal - Week 15 (reported by Paolo)
CANCELED - they will not join as parallel user in week 15
North Area Beam Status (L. Nevay)
General: Beam commissioning in progress.
H2: Commissioning almost completed. H2-VLE not yet comissioned, tentatively planned for week 16 tbc with SY/BI and only if no user wants the beam.
H4: Comissioning almost completed, H4-VLE XCETs still to be validated by SY/BI. Beam to be handed over to RD51/GIF++ on Tuesday 09.04.
H6: Commissioning almost done. Electron and positron beams being prepared today.
H8: Commissioning proceeding well, steering and focusing complete for main 180 GeV/c beam.
M2: Hadron and muon beam commissioned. Cedar commissioning ongoing. Preliminary scans look good. Some issues still with the FISCs that is being checked with BI.
P42/K12: Beam commissioning basically done, waiting for feedback from NA62.
North Area Users Tour de Table
M2:
Incoming Main: AMBER - Week 15 (Thomas Pöschl)
- Frist block: Measurement of antiproton production in proton-hydrogen and proton-deuterium collisions (70d)
- Setup of spectrometer ongoing
- General and electrical safety visit 09.04 (without Hydrogen target)
- Spectrometer commissioning planned to start on 10.04 (start of shifts)
- Hydrogen-target production and safety procedure still ongoing
- Physics measurements as soon as target installed (beginning of May)
P42-K12:
Incoming Main: NA62 - Week 15 (Roberto Piandani)
Apology to missed the meeting, I had problems at the experiment.
Most detectors are ready for the start of the data taking, during the week end we agreed with Johannes to have muon beam needed for calibration of detector.
Next week, we have to understand exactly when, we will fill the CEDAR with Hydrogen.
H2:
Incoming Main: LHCb - Week 15 (Ettore Zaffaroni)
The detector is ready to be installed next week.
Beam: electrons between 10 and 300 GeV, as wide as possible, rate up to 100k particles per spill.
No strong requirement on purity, momentum spread <10%
Some runs with muons for alignment.
ISIEC has been sent.
H4:
Incoming Main: RD51 / DRD1 - Week 15 (Alessandro Ferretti, Roberto Guida, Giuseppe Iaselli, Eraldo Oliveri, Yorgos Tsipolitis)
Groups:
SETUP A, B: PICOSEC (F. Brunbauer, M. Lisowska)
SETUP C: STRAW (T. Enik, K. Kuznetsova)
SETUP D: RHUM (M. Iodice, G. Sekhniaidze)
SETUP E: TWIN TPC (F. Garcia Fuentes)
SETUP F: GDD/RD51 Tracker (K. Floethner)
SETUP G: USTC (Y. Zhou)
SETUP H: CMS ME0 (A. Pellecchia, P. Everaerts)
Beam: Mostly high rate muons, few pions shifts, NO Goliath
Installation and operation
- Tuesday 9, afternoon: starting of the installation
- Tuesday 8pm (tbc/tbd): area closed (beam available for GIF++)
- Wednesday 8am (tbc/tbd): access to complete the installation.
- Wednesday 1:30pm: Survey (alignment)
- Wednesday 3:30pm: General Safety Inspection
- Wednesday afternoon, night: Alternance of beam and accesses
- From Thursday 8am: Beam with three accesses per day (morning, lunch, evening – to fix together with GIF++)
Incoming Parallel: GIF++ - Week 15 (Please Put Your Name Here)
H6:
Incoming Main: ATLAS ITK PIXEL - Week 15 (Andre Rummler)
Currently we are extremely low on person power for the first weeks and also there are issues with the materials necessary to operate three telescopes at once this week (H6A, H6B, T9). We might only start a few days later or even in week 16 but we are trying hard to make it possible.
H8:
No main user, incoming parasitic user (see below)
Parasitic Users
H4 Incoming: STRAW TRACKER RD - Week 15 (Temur Enik, Katerina Kuznetsova)
- intense commissioning at H8dump with the full shift crew and electronics set
- should be ready for crane transport on Tue or We next week (up to RD51 convenience)
H6 Incoming: CMS MTD ETL - Week 15 (Iván Vila)
Main goal:
- Characterization (time resolution, gain uniformity and absolute hit effieciency) of the LGAD 16x16 sensor prototypes read out with ETROC2 ASICs.
Intermediate milestones:
- Complete the integration of the ETROC2 Daq and EUDAQv2
- Integration of CROC-based time reference layer for 25ns time stamping of tracks.
- Validation of ETROC2 producer.
- HV bias scans and angular scans.
Current Readiness:
- All main components are available, still a few auxiliary mechanics to be 3D printed.
Telescope readiness (Andre Rummler): System is set up although depending on the choices we might still dismount some telescope planes / the FEI4.
H8 Incoming: LHCb - Week 15 (Federico Ronchetti)
Possibility to install for SciFi testing.
The detector is not ready yet and should still be transported from Lausanne.
Check with Maarten.
AoB
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Nikos : Request if NA64e could start installing earlier (taken from GIF++ beam time)
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Théo Moretti: MONOLITH team regarding the maintenance of the UniGe FE-I4 Telescope. Possible inside PPE-156 ? Somewhere else ?
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Gerardo Vasquez : SND@LHC proposed move from July to September
Minutes by the respective speakers, edited by E. B. Holzer, M. Jaekel, T. Shulha, and M. Schwinzerl
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