Choose timezone
Your profile timezone:
PS/SPS User Meeting
Description
Minutes of Meeting (please pre-fill before the meeting): https://codimd.web.cern.ch/Q1aW0kvRStitlMtDow6XTg?both
PS/SPS User Meeting
Minutes of the PS-SPS Users Meeting for Week 22 held on June 1st, 2023
Next user meeting:
For week 23 on Thursday, June 8th, 2023 10:30 CEST
Meeting room 874/1-011
News from the PS & SPS Physics Coordinator (E. B. Holzer)
Target intensities T2 / T4 / T6 = 100-105 (until July 5th) / 47-51 / 60
Wobbling change in week 22 for T4:
- H6 and H8 polarity change for higher energy beams in H8 for SND next Monday, back on the Wednesday after (2d effective change).
- Wobbling setting to keep beam quality and intensity for NA62 as requested.
See this codimd location from Tuesday morning onwards for the News from the FOM:
Week 23 Thursday 8th of June from 7:30 to about 9:00: Next scheduled Booster intervention / beam stop
Thursday starting at 9:00 - empty-bucket channelling test on the operational beam (improve the spill structure)
MD planning for the comming weeks:
This week (week 22):
- PSB: short parallel MDs
- PS: short parallel MDs
- SPS: Tuesday short parallel MD – preparation for Crab cavity MD
Wednesday dedicated MD – Crab cavity MD
Thursday long parallel – Intensity reach for LHC beams
Next weeks:
Week 23: Crab cavity MDs → no beam sent to North Area
Week 24: LHC MD (Wednesday to Sunday) beams prepared in the injectors
Week 25: Planning MDs during cooldown requires RP authorization and therefore requires planning of the interventions to be known reasonably well in advance.
→ Current plan: COLDEX and crab cavities
PS Machine Report (Denis COTTE)
A reasonable week for the PS with a few minor faults and 96% of beam availability
Mean issues were coming from extraction kicker KFA71, 10MHz RF cavity trips, a temperature interlock during the week end on our extraction septum SMH57 for EAST AREA.
- Access in EA mixed zone yesterday for installation of user vacuum system on T9. IRRAD/CHARM was in access during this time.
nTOF version with 28ns bunch length at extraction available. No sign of pre-pulse.
IRRAD/CHARM T8 beam tested at higher intensity (60 -> 80e10 ) without any blocking issue.
MTE: Large H emittance of the core (5th turn) reported by NA62. Reduced in PS by decreasing TFB gain. we started periodic measurements of the beam size at PS extraction.
SPS Machine Report (Francesco Velotti, on behalf of Kevin Li)
- Good availability during last week
- main issue for SFTPRO due to issue on QF - replaced with QS and still not equipped with harmonic correction. Now solved
- This week a full dedicated correction system for the QS will be deployed
- EBC test ongoing - if setting up, leave it on
Safety / Radiation Protection (Please Add Your Name Here)
n_TOF (M. Bacak)
Physics running according to planning:
- EAR1: 181Ta(n,g) and natEr(n,g) measurements running
- EAR2: irradiations for SACS/MACS proof of principle
- NEAR: finished the 8 months irradiation campaign just yesterday
Next Wednesday long stop for collimator exchange in EAR2 + 243Am experiment mounting. Potentially Thursday as well to mount the rest of the 243Am experiment if not finished.
Proton Beam:
- excellent avg. flux - ahead of planning (merci @ PS)
- changing from 40 ns to 28 ns pulse length for next week’s physics experiment (June 7th)
- RP approval for proton flux on target increase: 1.67e12 p/s to 2.2e12 p/s - 1 hour MD to test target instrumentation planned for next Friday June 9th (if beam sharing allows with other users).
We only increase the capabilities in order to profit of free cycles and in accordance with beam sharing. We do not request more proton flux for n_TOF (for 2023 ;-) )
East Area Beam Status (N. Charitonidis)
T10/11: off, no users.
East Area Users Tour de Table
T09: Low momentum configuration installed for ATLAS MALTA (complete vacuum). First beam checks done last night. Further tuning to be done today.
T8: IRRAD / CHARM (F. Ravotti & S. Fiore)
Another very good week with no issues. We had an access on Friday last week for a CHARM user. During the access on Wednesday we exchanged samples for the long-term users (same last week) and installed new experiment (TE-MSC) for irradiation under N2 atmosphere (IRRAD). Removed users from TE-MPE and BE-CEM, new users installed from ATLAS and CMS (CHARM). Stable and intense beam all week long, approaching the weekly target intensity despite the second access on Friday (see below). Next regular access on Wednesday next week.
T9: CALICE ScW-ECAL + AHCAL (Yong Liu)
PS-T09 status in May 25 - 31
- Setup: AHCAL prototype alone
- Finished energy scans with 𝜋−
beam in 1-15 GeV and 𝑒−
-
- beam in 0.5-5 GeV
- Over 10M events collected fro pions and electrons
Event display with pion and muon beams
- 10 GeV pion-
- 10 GeV muon-
Status in May 31
- Detectors and table moved out of beam area
- RP measurements finished
- Packing of detectors and motorised table done: ready for shipment from B.157
Very successful beam test campaigns at SPS-H2 and PS-T9 during April and May
- A big Thank You to CERN colleagues for enormous support and kind help
T9: ATLAS MALTA (Simon Koch, Brian Moser)
- Finished installation of the telescope
- Got safety clearance from Alex
- Now working on alignment with 15 GeV hadrons
- Afterwards, getting the DUT ready and taking physics data
- Some issues with the beam shape, following up with Dipanwita
T9 Incoming: ALICE FOCAL - Week 23 (Please Add Your Name Here)
Setup:
- Planning to install FoCal-E standalone on DESY table (no need for XCSA this time around)
- 18 layers of Low granularity Si Pad detectors
- 2 layers High Granularity ALPIDEs (Si MAPS)
- 20 layers of W absorbers
- 19 inch rack for electronics
- table in area for PSUs
Goals:
- Si Pads
- Systematic reaodut timing studies
- HGCROC working point characterization
- ADC, TOT, and TOA response studies
- Si Pixels
- Validation of threshold scans for pixel masking
- Two eelctrons separation
- General
- Energy scan for standalone resolution
- Validation of O2 infrastructure for data collection and monitoring
- Integration of new runtype in ECS system for detector calibration runs
Beam request:
- Up to 15 GeV hadron rich beam with 103, 104, 105 particle/spill
- 1, 2, 3, 4, 5,… GeV electron beams
T10 Incoming: ALICE MUON ID - Week 23 (Please Add Your Name Here)
Outgoing HiRadMat (Please Add Your Name Here)
North Area Beam Status
H2, H4, H6, and H8 Beams (N. Charitonidis)
Note: some issues with CESAR yesterday, all consoles will be prompted to restart CESAR.
H2: Smooth operation and transition between ALICE-FOCAL and RADICAL.
H4: NA64-e continues - No changes.
H6: Smooth operation. Note the wobbling change next Monday but will remain 120 GeV for H6, but negatively-charged beams. Some time required on Monday morning for this.
H8: SND Fiber Tracker data taking last week went smoothly. SND HCAL finishing their installation and they should be ready for beam today. Wobbling change foreseen for monday morning, -300GeV protons to H8.
Other Beams P42, K12, and M2 (N. Charitonidis)
M2: SM2 faults caused some downtime since Monday night. The fault of Monday was recovered on Tuesday noon (cooling issue). Yesterday, after the MD, an external interlock caused a fault. After a long investigation by P. Schwarz, EL piquet, TI, firstline, and the AMBER technical coordinator, the issue was found that a plug was removed from one of the doors of the magnet racks in the area. SM2 was operational from around 1:30 a.m.
P42/K12: Keep TAX settings for now. Request certain flexibility with the T2/T4 sharing on demand when NA62 does tests for their TDAQ at nominal intensity. No beamline-related issues.
North Area Users Tour de Table
P42-K12 and M2
K12: NA62 (Phil Rubin)
We’d like to thank operators for their efforts to improve the SFT spill structure. In addition, we’d like to convey our appreciation of the three-spill, 14.4 s supercycle. Finally, we wish the operators rapid success in solving problems that have dramatically increased the LHC fill time.
We continue our TDAQ studies and believe we are close to isolating the problems resulting in little tolerance for high and varying instantaneous rates. For the time being, we expect to retain the present beam sharing. TAX settings provide sufficient flexibility for our tests.
M2: AMBER (Maxim Alexeev)
We have had a smooth running till 29.05.23 (Monday) late evening when we lost ~12 hours due to a failure of SM2 (power converter?, cooling?) and the absence of beam.
During the MD on 31.05.23 we had the intervention from EN-AA-AC to repair the access system on the door YDPZ01 in the 888 and to exchange the keys panel that had one broken key. Completed successfully.
At the restart we had an issue with the CESAR (new software). Then SM2 iterlock was present due to an unknown origin. After a combined effort of first line piquet power converters, TI operation and Philip Schwarz. “Magnet doors” error was found to be a hardware element in the 888 area.
We plan to proceed in the present configuration with a 60 GeV beam till the beginning of the next week. A 3 spill delivery could help to compensate for the lost time.
H2
H2 Outgoing Main: RADICAL (Randy Ruchti)
We have had a very successful run, covering electron energies from 25 < E < 150 GeV. One Beam Wire Chamber was fully functioning and provided good particle position information at the location of the RADiCAL module. Runs were taken with the fast organic wavelength shifter DSB1 and the rad hard ceramic waveshifter LuAG:Ce and in various combinations. For reference with mip and hadron signals in the RADiCAL module, data was also taken with 50 and 100 GeV positive beam. In total, over 30M triggered events were written to disk. Of all the beam energies, the most difficulty was noted at low energy, 25 GeV beam where possibly SEU in the CAEN DRS DAQ may have played a role.
Setup (reported last week) and take down (31 May) went smoothly. The RADiCAL Module will undergo gamma spectroscopy,to assess release for shipment to the US.
We thank Nikos for providing us the 150 GeV electron tune file over the holiday weekend so that we could reach higher energy than originally indicated. And thank you to all the PS/SPS personnel who contributed to the success of our RADiCAL beam test.
H2 Main: MUonE ECAL ( Enrico Conti)
Yesterday (31 May) we succesfully installed all the apparatus: ECAL module with laser system, chiller, electronics, DAQ, etc. Everything went smoothly without major problems.
Operation with the NIKEF table is easy.
From yesterday evening we got the beam, electrons at 150 GeV. We start collecting and looking at the data.
Difficult to say anything about the beam quality at this moment, it is too early. Yesterday we stored about 2E3 events/spill, maybe we can increase the beam rate a little bit, in the next days.
We are ready to start our program of data collection.
H2 Incoming Main: EP FTS - Week 23 (Please Add Your Name Here)
H4
H4 Main: NA64e (Vladimir Poliakov)
Smooth data taking during last week. Around 1.3x10^11 was recorded until this Wednesday.
H6
H6 Outgoing Main / Parallel: ATLAS AFP TOF (Tomas Komarek)
- Main program 80% complete
- LTB/Hitbus replacement (FPGA-based) performing great
- Trigger decoder not working as intended
- Ongoing detailed tests of LTB configuration and reliability
- Possibility of last minute rush on Monday/Tuesday (if decoder that failed tests gets fixed in time)
H6 Parallel: ATLAS HGTD (Djamel Boumediene, Stefano Manzoni)
- Setup ready since Thursday 25
- Taking good data since Friday 26
- Tests of LGADs with 𝜋
- beam at -30 deg. C.
- Good beam (rate about 105
parti./spill, 0.5-1 cm2
- ) especially during we.
- Plan:
- Increased number of DUTs since this morning
- Some interventions needed on the setup (rotations, DUT removal) constrained by cooling time
- Beam rate and profile OK, could cope higher intensity.
H6 Main: ATLAS BCM PRIME (Andrej Gorisek)
All participants arrived throughout the day on Wed. The data taking computer and ATLAS BCM’ setup arrived and were installed on Wed. MALTA telescope was turned on and configured on Wed.
The first ATLAS BCM’ Module using the new Calypso_D ASIC arrived on Wed and was installed. Some noise issues need to be resolved. Data taking commenced with the module at +500V. No HV issues were noticed when the module was raised to +1000V. It was decided to take data at +1000V overnight.
MALTA experts will look over the telescope on Thurs morning.
One issue is the location of the terminal to access H6a. Perhaps this can moved?
H6 Incoming Main: ALICE ITS3 - Week 23 (Paolo Martinengo)
Installed yesterday, so far so good
We would need one more person with patrol rights, only at present
H6 Incoming Parallel: EP PIXEL - Week 23 (Justus Braach)
- Minor upgrades of telescope during next weeks MD
- Finishing the program from two weeks ago: scanning of corner regions of Timepix3 iLGAD assemblies
- High rate tests of FASTPIX small-area devices @ (500−1300)𝜇𝑚2
- Tests with constant fraction discriminator for next iteration of MCP-PMT time reference detector implementation.
- Same beam settings as in previous high-rate beam times (two weeks ago) - highest achievable rates, smallest beam size in our telescope
- Mostly remote operation, except for occasional sample changes
- Access coordinate in H6A via Mattermost as in previous high-rate beam periods.
H8
H8 Outgoing Main: CMS MTD (Giulia Sorrentino)
We had a very successful test beam, with lots of data collected for many irradiated and non irradiated modules, both with TOFHIR2X and TOFHIR2C. My gratitude to Laza and Maarten for all the help provided before, during and after the operations.
Thanks to the extra week (24-31 May) of data-taking, we have completed our plan for summer and we would like to cancel our parasitic slot in Week 23 (7-14 June). Our setup has been removed yesterday from the beamline.
One extra request: we would anyway need access to PPE158 next Wednesday (7 June), to take out some materials (mainly power supplies and cables) we left inside.
H8 Main: SND@LHC (Christopher Betancourt)
Yesterday we installed our muon planes between iron blocks and connected all the cables and readout. Saftey clearance approved this morning. Today we will calibrate and debug our detector. Data taking starting at 180 GeV is planned for tomorrow.
H8 Incoming: PROTOV - Week 23 (Please Add Your Name Here)
H8 Incoming: GALORE - Week 23 (Please Add Your Name Here)
Parasitic Users
Reporting for parasitic users is optional, please add your name below:
H8 DUMP: STRAW TRACKER 3D
AOB
Minutes by the respective speakers, edited by E. B. Holzer and M. Schwinzerl
There are minutes attached to this event.
Show them.
