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PS/SPS User Meeting
PS/SPS User Meeting
PS-SPS Users Meeting for Week 32 held on August 10th, 2023
The agenda for this meeting is based upon user schedule 1.7.1, please cf. here. Please note the current injector schedule which contains information about MDs, Technical stops, etc. and can be found here.
Next user meeting:
For week 33 on Thursday August 17th, 2023 10:30 CEST
Meeting room: 874/1-011 (CERN)
Changes to User Schedule since 1.7.1 (will be reflected in 1.8)
- ALICE FOCAL H4 Week 36 : TBC -> confirmed
- PICSEL H6 paralell Week 37 -> CANCELED by user
- SND/LHCb request to use PPE168 in parasitic mode Week 33 to 37 -> Approved
News from the PS & SPS Physics Coordinator (M. Jaekel)
PS and SPS Physics Coordination:
August 4 to August 14: Martin Jaekel
August 15 to August 20: Dragoslav Lazic
August 20 to August 23: Martin Jaekel
EURO-LABS TA:
Email to all requestors have been sent out:
- Financial conditions for PS & SPS Test Beam users (warning: differnt from standard conditions)
- Names of the visits which have already been approved by the USP
- Per individual email: details on the number of per diems approved per visit per person
Possibility to test one scheduled, dedicated AWAKE run
Currently no request. Will be taken up later.
See this codimd location from Tuesday morning onwards for the *News from the FOM (M. Jaekel)
Preview of MDs:
Week 32
- Dedicated SPS MDs for North Area : crystal shadowing (up to P42) – LHC pushing intensity in parallel
Week 33
- The scheduled LHC MD (Monday to Sunday) will not take place
- Short parallel MD from Monday moved to Friday
- No parallel MDs on Monday nor on Tuesday (maximise data taking for NA61)
- Long parallel MD moved to Week 33
Week 34:
- No short parallel MDs
- Dedicated MD on Wednesday
- Long Parallel MDs on Thursday & Friday
Intensity split and wobbling
Wobbling change August 10 (Thu) to August 14 (Mon):
- Negative polarity in H6 and H8 to allow for higher beam energy in H8 for SND (>180 GeV)
- Reduced intensity on the T10 target to NA62 test measurements (approximately 23 units on T10)
T2 = 50
T4 = 48 / T10 = 28 27 (corrected during the meeting)
T6 = 35
Addendum Friday 10h (M.J.): To profit from the PSB stop (leak search), the PS intervention on a 20 MHz and 40 MHz cavity has been moved to Monday morning (Originally proposed for Tuesday 9h). The wobbling change on Monday has therefore been moved by one hour to around 10h (from 9h).
PS Machine Report (B. Mikulec)
- Availability for EAST >97%, AD and n_TOF ~96% and SPS 91%.
- Main issues:
- Saturday 6h downtime for SPS to swap back from the spare MTE kicker KFA13 to the original one
- Sunday water valve failure in PC of F16.BHZ167 stopped all beams for 3h except for EAST
- Monday morning RF specialist intervened on two 10 MHz cavities (1h20m downtime)
- Excellent integrated flux for EAST_T8 and attempt to send as many cycles as possible to EAST_T9
- SFTPRO: higher V emittance version used operationally since 1 week
- Could provide since yesterday evening a very low-intensity pulse to n_TOF (~10e10 p) as parasite on the EAST cycle
- Need to schedule an access before Wednesday to exchange a 20 MHz and 40 MHz cavity amplifier (~2h beam stop)
SPS Machine Report (C. Zannini)
- Dedicated MD (crystal shadowing) on Wed.
- After MD adjustment of splitting to have 27 on T10 (presently we have about 49/54/28 on T2/T4/T6)
- Cavity 1 800 MHz not working since yesterday. Issue not yet understood. The cavity was not working properly since at least 1 week
- EBC NOT WORKING
- Ivan setup AWAKE to work only with cavity 2
- Th-Th availability 89%
Safety / Radiation Protection (Alex Schouten)
- Emergency communication through CERN phone app (see indico slide)
- PPE compliance and general housekeeping
NOTE
It was decided to follow up on the issue with the power cut impact on the operation of the phones within the realm of the TIOC meetings: Major Fault 144190 -https://edms.cern.ch/ui/file/2926903/1/TIOC_09_08_2023.pdf
The importance of the issue was emphasised, Laza reminded everybody that GSM reception is better outside of the ENH1 hall, facing towards the Jura side, in case of emergency and no other means of communication.
nToF (M. Bacak)
Progressing well with physics programme:
- EAR1: 243Am(n,f) for 2 more weeks.
- EAR2: 26Al(n,a) and (n,p) setup mounted yesterday. Already taking good data.
- NEAR: measurement with diamond detector continues thanks to super low intensity bunch.
Proton beam:
- Excellent intensity - happy users
- PS prepared a 10e10 p+ bunch (on EAST_N) allowing to extend the energy range with the diamond detector @ NEAR (2m flight path) - big thanks to the PS team. Keeping this bunch until Wednesday next week.
East Area Beam Status (L. Nevay)
T09: No issues. MDX magnet installed in the user zone. T09.DHZ045 is disconnected until Aug 16th to use its power supply for the above. Changes will be reverted back next week on Wednesday.
T10: No issues.
T11: No user.
East Area Users Tour de Table
T8 Main: IRRAD CHARM (F. Ravotti & S. Fiore)
Excellent week, no issue with operation. Weekly intensity level among the highest delivered to T8 in 2023, thanks! :) (2.4e16 p/w, see plot below). Beam alignment and center on both X- and Y-axis, under control (The number of spills centered within +/- 2mm on the horizontal plane decreased a bit w.r.t. the previous weeks [~86%]).
During the access on Wednesday, we exchanged the dosimetry and replaced samples for most of the long-term users: TE-MSC [including N2 experiment], ATLAS ITk Pixel [scanning table]. ATLAS HGTD, CMS Pixel and SY-BI experiment (setup with optic fibers) completed. CMS Pixel and SY-BI coming back in the coming weeks. In CHARM we modified BE-CEM and TE-MPE setups. Beam back around 11:30.
Upcoming access, next week.
T9 Main: TECHNO CLS (Stefano Carsi)
We have 2 weeks of beamtime (August 2nd
- August 16th
)
During the first week we aligned our detectors, and tested different beam configurations
We calibrated our calorimeter, which showed very good linearity in the range 1 - 15 GeV. Eventually we find out that the sunlight coming from the ceil windows increased the baseline. We fixed by light shielding the PMTs
We concluded yesterday the first week by fully characterizing our PWO crystal
Yesterday a bending dipole magnet was installed in our area
We plan to test a new tungstate crystal for a positron source: the magnet is for swiping away charged particle, and an active photon converter (APC) is employed to detect the increase in the photon production
Very thanks to Dipanwita, Aboubakr and all the CERN staff who help us during our beamtests
T9 Incoming Main: NP06 ENUBET - Week 33 (V. Mascagna)
- 2 weeks (Wed 16 – Tue 29)
- test of the ENUBET tagger, a 3 tons iron-plastic sampling calorimeter. Same as 2022 but equipped with more channels and upgraded DAQ.
- tagger shipped to CERN on Aug 7, internal transport to the East-Hall scheduled on Aug 14 or before.
- Installation ~ 1 day (Wed 16 morning -> Thu 17 afternoon)
- Safety clearance visit planned for Thu 17 at 16:00 (ISIEC 973 submitted).
- Beam requirements as 2022, (Neg. other, 1.0 - 5.0 GeV/c, Neg. pure e, 1.0 - 5.0 GeV/c), reusing beam files
- Parasitic test EP 3DET
T10 Main: ALICE TOF (Yongwook Baek)
- Gas connection problem: solved
- Spent a few days to find DAQ problem: bad connection
- Data taking using standard gas: HVscan, position scan done, Rate scan is ongoing
- Continue same measurement on eco gas
T10 Incoming Main: ALICE ITS3 - Week 33 (Paolo Martinengo)
Preparing set-up in the lab, so far so good
Agreed with Maarten to to stop the beam on Wednesday for intervention on the beam line
AWAKE (Giovanni Zevi Della Porta)
Summary of past week:
Proton beam delivery: very reliable
Daily activities:
- Monday-Wednesday: completed commissioning of new Plasma Source and installation of Rubidium density diagnostics. Filled Rubidium reservoirs.
- Thursday and Friday: beam commissioning of diagnostics.
- Saturday: access (align diagnostics) and first plasma (constant density).
- Sunday: self-modulation at constant density and with density step.
Plan for ongoing week:
- Continue beam commissioning of new Plasma Source.
- Collect physics datasets with density steps of different sizes, at different positions along the plasma.
North Area Beam Status (L. Nevay)
T4 wobbling change Thursday 10th at 16:00, affecting H6, H8, and P42. Both H6 and H8 will have negative beams (-120/-300 GeV/c for H6/H8). Switch back planned on Monday 14th at 09:00. Request to avoid access to H6, H8, and P42 during this time for beam tuning.
Beamlines H2, H4, H6, H8
H2: Issues with the VTPC vacuum. Followed up by cooling team (EN-CV). Issue with “moving” beam still present and not understood - Power supply group (SY/EPC) is following up and there will be a dedicated meeting on Thursday.
H4: Smooth operation.
H6: Normal operation last week. CEDAR removed from beamline for a change of the internal optics and vacuum in its place.
H8: Smooth operation.
Beamlines P42-K12 and M2
M2: The spectrometer magnet MS2 for NA64mu had some cooling temperature errors on Tuesday but could be fixed with resets. Smooth operation otherwise. Changeover ongoing to AMBER and MUonE.
P42/K12: Good operation without issues. Since the MD yesterday, the transmission to T10 is a bit lower than before, which made a slight adjustment of the T4 intensity necessary. Lowering the intensity to 22 units on T10 as requested by NA62 is scheduled for the same time as the wobbling change.
North Area Users Tour de Table
Beamlines P42-K12 and M2
K12-P42 Main: NA62 (B. Velghe)
- Smooth operation this week except for a minor vacuum problem (cryo group regeneration malfunction), promptly fixed by the piquet.
- Empty bucket channelling enabled, very good beam quality (50Hz, 100Hz components greatly reduced) until yesterday (800 Mhz cavity issue).
- We will go to 22 units on T10 later today.
M2 Outgoing Main: NA64mu (Vladimir Poliakov)
Successful beam run, 19 days smooth data taking, was recorded around 71k spills.
The first week we shared beam time with Amber collaboration, and used for commissioning and detectors calibration, alignment and trigger tuning. Thanks Amber colleagues for useful cooperation.
We measured a hadron contamination for 160 GeV muon beam.
The total amount the muons on target were recorded
1.8x10^11.
The dismounting of NA64mu setup should be finished today.
Thanks a lot BE-EA group, transport and magnet teams, and especially Sylvain, Dipanwita.
M2 Incoming Parallel: AMBER - Week 33 (Please Add Your Name Here)
M2 Incoming Parallel: MUONE - Week 33 (Please Add Your Name Here)
H2
H2 Main: NA61 SHINE (P. Podlaski)
- smooth fata taking with p+Ti @ 120 GeV until Tuesday morning
- minor DAQ problems started Tuesday at 9:00, resolved around 14
- in parallel, cooling problems of VTPC-2 syarted around 11 the same day: no data taken since Tuesday 17:30 after EN-CV check
- faulty sensor was identified, no spare present in CV stock. Lead time: 3 weeks.
- EN-CV is working now to verify the issue and maybe to recover broken sensor.
H2 Incoming Main: HIKE SAC - Week 33 (M. Soldani)
Since PPE 172 is currently accessible and free, we’re planning to start to install our system later today.
H4
H4 Outgoing Main: CMS HGCAL
- Tested 2 HGCAL silicon modules
- Solved our DAQ issues reported last week on Friday and Saturday
- Acquired data with electron, pion and muon beam
H4: Report by HERD About Proposal for next run CMS HGCAL (Nicola Mori)
A proposal for a joint CMS-HERD data taking in H4 during weeks 37-38 is presented. The HERD detector will be mounted in the back of PPE134 beam area, and get electron beam when CMS will not be in data taking (e.g. during debugging) and moved out of beam. A minimum integrated data taking time of 1 day is needed for HERD. The proposal will be approved if there are no objections from beam physicist and from TSO (for needed equipment).
Comment from the Physics Coordination : Pending the approval of the beam physisist and the infrastructure, it has beeen agreed that HERD could take part parasitic together with CMS HGCAL. An approximate goal of 3 x 8h shift is envisaged for HERD.
H4 Main: CMS ZDC EM (Sorina Popescu)
We installed detector, electronics and connect the cables to control room.
We had the safety inspection yesterday at 4:30 and being operational since 6 pm yesterday
this morning we had the final alignement by Michael L team, many thanks, we can start the scanning of the detector with the precicion expected +/- 5 mm (current horiz beam)
all beam files uploaded by N. Charitonidis, Thank you.
currently we are working on the trigger and we will start the detector calibration.
H4 Incoming Main: FASER NU - Week 33 (Ken Ohashi)
- 1 week (Wed16-23)
- ISIEC submitted yesterday evening. (ID 1002)
- safety inspection at 4 pm 16th
H6
H6 Outgoing Main, Incoming Main Week 33: ATLAS ITK PIXEL (Andre Rummler)
I removed the ITk pixel installation Wednesday morning. There was a small leak on the secodnary cooling circuit so it took a bit more time to clean a small quantity of oil from inside the cold box. Secondary cooling circuit removed as ITk strips does not need it and external connections of Julabo chiller capped to enable to use N2 pre-cooling. All material left in EHN1; 3 pieces brought into the buffer zone and TREC requested. Tracking arrival of new material for next week. All telescope systems are nominal.
H6 Main: ATLAS ITK STRIP (Jiri Kroll)
- During the Wednesday, August 9, we have installed our setup in the Aconite telescope (R0 and R1 sensors, together with one ITk pixel sensor from Andre)
- The environment in the MPI box was cooled down to -65C, cooling is performing great
- Unfortunately, we have found out that R0 module has some problem with application of the HV to sensor
- For the R1 module we have identified the issue with noise increase at certain level of leakage current (effect observed already for other modules but still not fully understood)
- We plan to heat up the system, remove the R0 module (which can’t be fixed in the current conditions) and install R3 module that shows similar behavior to R1 - extremely cold temperatures could help us to keep the leakage current before the limit leading to increaded noise
- We are also tuning the testbeam readout to get all detectors into synchronization - to be able to start stable data taking when our DUTs will be ready for it.
- General comments
- we will schedule the transport of irradiated (and still quite active) modules from SPS to IRRAD on August 16
- also will try to contact RP group for the check of our stuff before we will remove it from the beam area.
H8
H8 Outgoing Main: QFIB (Suat Ozkorucuklu, suat@cern.ch)
We would like to thank all SPS colliques for help and support.
We had complete our program with 100, 120, 140, 180 GeV pion beam.
Mainly 180 GeV pion beam was used.
In total, 57 Runs and 29 Scans were taken.
More than 61.5 Million event were taken.
Analysis is on going.
Hope to see you in 2024 !!!
H8 Main: SND@LHC (marco.dallavalle@cern.ch)
Very dense program: pion beam at 5 energies (100,140,180,240,300 GeV) times 3 target configurations. Aim at high statistical accuracy. Handicap: the RO is slowish.
Thanks to QFIB colleagues and Maarten van Dijk, we were able to collect data for tuning the RO thresholds and understand our DAQ rate limitations.
Wednesday 9 in the evening/night Marteen prepared beam files for 100,140,180 GeV optimized for our experiment: transverse beam size 2 to 4 cm, rate of ~4K / spill. After a few iterations we were extremely happy with the result. In data taking since then. We finished the 3 target walls x 100 GeV program, and we switched to 140 GeV. And we’ll collect 180 GeV before the beam polarity change, agreed for the mid afternoon.
H8 Incoming Parasitic (proposal) :
SND@LHC & LHCb : Proposal to install a combine setup in PPE168 for parasitic use between the SND and LHCb bean time. Approved in agreement with Maarten for H8. Pending requirements : beam request and activity description & ISIEC.
H8 Incoming Main: RE1 AMS L0 - Week 33 (Matteo Duranti, INFN Perugia)
- 1 weeks (Wed 16 – Tue 23);
- test (mainly to measure the spatial resolution) of the first AMS-L0 (upgrade to be installed in orbit in 2025) prototypes;
- installation: ~ 0.5 day (Wed 16 morning);
- Safety clearance visit planned for Wed 16 at 17:00 (ISIEC 995 submitted);
- Training with Bastien Rae for Wed 16 at 10:00;
- Beam requirements: 180 GeV/c hadrons;
Parasitic Users
M2 Outgoing: AMBER (Please Add Your Name Here)
M2 Outgoing: MUONE (Please Add Your Name Here)
H6 Outgoing: CEDAR N (L. Nevay)
First CEDAR tests with new optics completed successfully in parasitic mode, and CEDAR removed from beamline for a change of the internal optics. CEDAR parasitic request for weeks 35/36 vs. previous request of 34/35 to allow more time for change of optics.
H6 Outgoing: RD42 (Please Add Your Name Here)
H8 Outgoing: SND (Please Add Your Name Here)
H8: CMS RPC (Please Add Your Name Here)
H8: STRAW TRACKER RD (Please Add Your Name Here)
T9 Incoming: EP 3DET - Week 33 (Please Add Your Name Here)
H8 Incoming: PAN - Week 33 (Daniil Sukhonos, University of Geneva)
We plan to perform the position resolution studies for our Mini.PAN spectrometer using high energy hadron beam. The spectrometer is installed on the remotely controlled rotating stage to perform angular scans as well. It will be the first beamtest with all subdetectors installed and synhronized.
AoB
Minutes by the respective speakers, edited by M. Jaekel, E. B. Holzer and M. Schwinzerl
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