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Meeting ID: 639 1353 0325
Passcode: 814645
!!!PLEASE NOTE THE CHANGED COORDINATES!!!!
Minutes of the PS-SPS Users Meeting held on May 17th, 2023
Next user meeting:
Thursday, May 25th, 2023 10:30 CEST
Meeting room 874/1-011
(i.e., same location and time-slot as before the holiday!)
EURO-LABS Transnational Access call for applications (E.B. Holzer)
Detector related R&D test beam users can apply for user support in the form of a per-diem.
The per-diem is a financial support for payed accomodation (hotel, hostel etc.) and cost of living during the beam test for person travelling to CERN for the beam test. ⇒ requested per-diem less or equal the number of nights in the hotel.
No other financial support is possible.
Reminder: submission deadline May 18th 2023 ⇒
Please get in touch if you have questions or problems!
PS Machine Report (Alex Huschauer)
- 91% availability since last week, few issues
- 10 MHz cavity amplifiers needed exchange and access
- issue with BB LLRF controls that inhibited PSB-PS synchronisation
- extraction bumper issue yesterday night
- Beam status
- work to prepare doubleBatch TOF cycle ongoing (still some work needed for beam instrumentation in the line)
- EAST_T9 target symetry check based on BLMs in place
- AD cycle and transfer line optimisation ongoing
SPS Machine Report (Please Add Your Name Here)
SFTPRO
- Automatic optimization for 50Hz correction successfully running
- As requested, intensity step/adjustment on Monday (from 30 to 90 units on T2 and reduction to 60 units in T6)
- Adjustment of RF settings
- MD on empty bucket channeling and TT20 optics ongoing today
AWAKE
- This week is a semi-dedicated AWAKE week (possibility to run AWAKE in a dedicated manner for a certain time between LHC fill)
- It will be implemented on Friday morning for 1 hour tentatively at 11:00 AM. The exact time will be mentioned on page 1 as soon as possible.
News from the PS & SPS Physics Coordinator (E. B. Holzer)
Target intensities T2 / T4 / T6 = 90 (until July 5th) / 57 / 60
Wobbling change in week 22 for T4:
- H6 and H8 polarity change for higher energy beams in H8 for SND.
- Wobbling setting to keep beam quality and intensity for NA62 as requested.
Scheduled test of dedicated AWAKE running (no beam to North Area) on Friday for one hour starting at 11:00 (if no LHC filling during this time). To compensate for the loss of the North Area cycles, AWAKE will stop 2 hours earlier on that day (22:00 instead of 24:00).
Next scheduled Booster intervention / beam stop: 24th of May start at 7:30
MD planning for the comming weeks:
This week (week 20):
- PSB: short parallel MDs ongoing
- PS: short parallel MDs ongoing
- SPS:
- Monday/Tuesday: short parallel MDs in SPS
- Wednesday: dedicated MD :
- 08:00-13:00: empty bucket channelling with crystal shadowing in parallel → beam sent to P42 (no extraction from 08:00 to 08:30 for NA matrix change for physics users)
- 13:00-18:00: empty bucket channelling with LHC beam studies in parallel → beam sent to P42
Next weeks:
- Week 22 and 23:
- Crab cavity MDs → no beam sent to North Area
- 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, crab cavities and Linac4 source tests
- Planning MDs during cooldown requires RP authorization and therefore requires planning of the interventions to be known reasonably well in advance.
Safety / Radiation Protection (Please Add Your Name Here)
n_TOF (Nikolas Patronis)
- EAR1: 181Ta(n,g) experiment is running smoothly. In data taking mode during the last ten days
- EAR2: Neutron capture setup auxiliary measurements will continue up to ~7th of June
- NEAR: No irradiation
- PoT: 3.7e18 (According to our expectations. Many thanks to the PS teams!)
- Next scheduled beam stop (NEAR intervention): 24th May Wednesday 09:00 - 14:00
file:///tmp/pid-2766/Protons-1.png
East Area Beam Status (D. Banerjee)
T09: No user last week. Successful online monitoring test for the East Targets. CALICE run started from yesterday.
T10: High pressure XCET is once again fully operational.
T11: issue with access door fixed last Thursday that caused patrols to have to be repeated.
East Area Users Tour de Table
T8: IRRAD / CHARM (F. Ravotti & S. Fiore)
Very good week with no issues. Access is ongoing for replacing samples and experiments in both CHARM and IRRAD. Another very good with with very stable and intense beam, approcching very close the weekly target intensity (see below). Next access on Wednesday next week.
T9: CALICE ScW + AHCAL (Yong Liu)
Logistics and preparations for PS-T09
- Transportation finished last Friday (May 12) : B.887 → B.157
- Unpacking finished in the same day
- Load test and safety inspection successful; safety clearance granted from the HSE team in May 16
- PS-TS09 beam area patrol training done and two Cherenkov threshold counters ready in May 16
General status and beam time plans at PS-T09
- Prefer negative polarity in general
- Start 10 GeV 𝜇−, then followed by energy scans of 𝜋−(1-15 GeV) and 𝑒− (1-5 GeV)
- First ScW-ECAL+AHCAL combined in the first week, then AHCAL alone in the second week
- Calibration runs with 10GeV muons started from May 16 (Thanks for allowing us to start the beam time 1 day earlier than schedule)
AWAKE (Giovanni Zevi Della Porta)
Second week of proton run:
- 3725 extractions received, ~60 % of first week (MDs on 10-11.05 and LHC issues on 13.05)
- Requested beam for 50.3 hours, received beam for 23.5 hours
Daily report:
- Mon: Ion motion studies comparing proton self-modulation in Xenon vs Helium plasma.
- Tue: Hosing instability studies at low density with Argon and Helium plasma.
- Wed and Thu: No beam. Second configuration installed of Discharge Plasma Source (i.e. 3.5 m + 6.5 m).
- Fri: Self-modulation studies in 6.5 m of Argon plasma, plasma light delay scans, ion motion dataset.
- Sun: Several datasets (ion motion, plasma light, hosing, impact ionization) with Helium plasma.
Issues
- Lost of PC controlling fast cameras (08.05). Replaced in early-morning access.
- Disconnected filter on BTV screen (12.05). Re-connected in early-morning access.
Week 20 (current) plans and status:
- Third week of protons for run 1. Tested 3.5 m plasma and 3.5+6.5m plasma on Tuesday. Today: changing back configuration to a single 10 m plasma for rest of the run.
- Friday: 1-hour test of AWAKE-only supercycle (compensated by 2-hours )
Incoming: HiRadMat - Monday, May 22nd 2023 / Week 21 (N. Charitonidis)
- HRMT-62 (“Fireball”) installation smoothly ongoing. Beam time starting 08h00 @ Monday.
North Area Beam Status
H2, H4, H6, and H8 Beams (D. Banerjee)
H2: Smooth operation
H4: NA64-e installed, beam tuned, ready from the beam point of view. Thanks for the 90 units on T2!
H6: smooth operation.
H8: Smooth operation. CMS taking data since last Wednesday. TOTEM cancelled their beam time this week due to unreadiness of the detector.
Other Beams P42, K12, and M2 (Please Add Your Name Here)
M2: Issues with CEDAR pressure reading where the CEDAR089 reading jumps to 45 bars(max is 15 bars, this is only a reading and not actual pressure change) and high consumption of He due to regulation in the software. The regulation issue seems to be better after BI updated their software on 16th May. However the pressure reading issue came back late last night. Likely the pressure sensor will need to be replaced. This is being planned for today.
P42/K12: Smooth beam operation, partly at lower intensity on request of NA62. Some troubles with access door, to be fixed today.
North Area Users Tour de Table
P42-K12 and M2
K12: NA62 (Renato Fiorenza)
Data taking was started. We have some issues with the trigger system, and we are running at lower intensity (~80% of nominal), both to minimize the problem and to help with debugging.
The ECN3 door was fixed this morning: now it’s closing properly, and we now have the red string in place.
M2: AMBER (Maxim Alexeev)
Since last week we are concluding the commissioning of the spectrometer with the plan to start the data tacking later this week. The RICH was filled over the weekend and is fully operational.
One of the critical elements are the CEDARs. After the increased He consumption a investigation was carried out to reduce it with the help of BI. During that we were not able to operate the CEDARs with the normal procedures but always had to open and close the supply valve to minimize the consumptions. Points which were addressed and additional problems:
- The inlet valve was replaced last week
- On Sunday the pressure readings jumped to 40bar
- It was found out the reason is in the pressure reading (frequency oszilates)
- Several interventions by BI had been performed comprising the update of the software on Tuesday afternoon.
- On Tuesday night the wrong readings appeared again lasting for 1 hour and disappeared -> still not stable.
- The issue is under investigation by BI and we hope in a solution.
We will have a meeting later today to address the issue.
Nevertheless we were able to perform first tests with 60GeV beam and evaluate the CEDAR performance. It looks that we can use the CEDARs at 60GeV with reduced efficency which means that we do not have to install the threshold cherenkov detectors for the 60GeV point.
H2
H2 Outgoing: CMS HF (Alexi Mestvirishvili)
Started as planned, Wednesday, May 10th evening. After 18:00. Beams were tuned, thatnks for great help of Bastien and Nikolaos!
We took excelent data, the test beam program has been completed
Very small down time period due to the beams, it even was almost unnoticable. With agreement of next, incoming users, most of our setup will stay in the area, since those equipment will be reused during RADICAL TB, which starts May 24th
H2 Main: ALICE FOCAL (Max Rauch)
Coarse overview
- Beam time from 17th to 24th May at SPS H2
- Hadron and electron beams in the available energy ranges
- Team is currently installing
- First activities will be: DAQ setup, detector timing
- Common data taking full focal prototype
- ~2 days FoCal-H standalone without FoCal-E in front
FoCal-E pads
- (pads) Replicate timing scan of the pads / make use of the TB2 (Test Beam Trigger Board)
- (general) use the first version of FoCal AliECS for readout, data distribution, and O2 reconstruction
- (pads) replaced half-working layer in the shower-max region in the prototype with spare
- (pixel, optional): test pixel layer trigger scheme & pixel grid masks (reduction of occupancy/data volume)
FoCal-H
- Investigate effects of interfaces between modules!
- Study signal saturation (individual SiPm bias scan)
- Switch to new/optional readout systems (VMM+SRS)
- Test ToT for default prototype readout system CAEN DT5202
- Better event synchronization with FoCal-E (no CRU based readout in FoCal-H, TB2)
H2 Incoming: RADICAL - Week 21, Main (Randy Ruchti)
RADiCAL is preparing for next week. The team is already (in part) experienced in the H2 beam line, as they have just ended their HF Wall run today. We have met with Michael Lazzaroni, and we are clear on the installation issues. We have been in contact with Laura Rowland, to have our safety inspection for 17:00 on 24 May, and will work with her on any related preparations. Also, we will may the kind assistance of Laza to have the beam chambers set up (under the assumption that they might have been taken out of the beam for ALICE). If not, that is in good shape. Our intention would be, at the outset, to begin with 100 GeV electrons, which will give us a good reading on our electronics/DAQ, given the expected large signals at shower maximum in the RADiCAL module, the region of the module where we determine the particle timing. Our intention is to run electron beam energies in 25 GeV steps from 25 < E< 125 GeV. We may try a run at 150 GeV. I will double check with Nikos on the bean energy setups.
H4
H4 Main: NA64e (Vladimir Poliakov)
Installation and commissioning were started in 10 May.Third magnet, Veto hadron calorimeter, two large
Straw stations, 7 MM, 2 GEM and 6 Straw station, SRD
detector, 5 beam counters and large veto were installed.
Thanks a lot BE-EA group, transport team and
especially Sylvain, Bruno, Michael, Nikolaos and
Bastien!
Friday 12 May 10:00 SAFETY VISIT
Start commissioning of detectors and calibration with beam from Friday afternoon. All beam counters and tracking detectors were commissioning and aligned. Electromagnetic calorimeter and preshower were calibrated with 100 GeV
electrons. 4 hadron calorimeters and large veto were calibrated with muons beam.
We see a good beam quality for high intensity 6 x 10^6 electrons per spill, as in 2022. Today all beam instrumentation will remove from beam line for
improvement of beam parameters.
Thanks, Nikos and Sylvain.
Friday morning → start data taking with intensity ~ 6x10^6.
H6
H6 Outgoing: CERF (Marco Tisi)
- CERF run 2023 finished as planned this morning (all equipment removed)
- We had very stable beam trhoughout the whole week
- External users could complete their planned activities in time
- Many thanks!
H6 Main: EP PIXEL (Dominik Dannheim)
- finishing mechanical improvements for telescope this morning;
- safety clearance scheduled with Laura for this afternoon;
- measurement programme for the week: high-rate testing of small-area DPTS and FASTPIX devices and of Timepix3 iLGAD assemblies;
- plan for mostly remote operation, except for initial alignment and occasional sample changes;
- beam settings as in last year’s high-rate periods: highest achievable rates, smallest beam size in our telescope;
- will coordinate access to the parasitic setups in H6A via Mattermost as in previous high-rate beam periods.
H6 Parallel: ALICE ITS3 (Paolo Martinengo)
Installation on-going
Yesterday CERF gave access to the area, thanks a lot
H6 Incoming: ATLAS AFP TOF - Week 21, Main (Please Add Your Name Here)
H6 Incoming: ATLAS HGTD - Week 21, Parallel (Stefano Manzoni, Djamel Boumediene)
- Setting up in H6A starting on Wed 24 for two weeks
- ISIEC form submitted on Tue. 16
- Main goal to test LGADs, typical target size: 2x2 mm^2
- Study LGAD performance (timing, efficiency, charge) by combining LGAD signal, MCP reference, telescope data
- Main tests planned at cold (-30 ºC) using the chiller from H6A
- Requirements: hadrons, typical beam size of ~1×1 cm^2, intensity of ~10^5 particles/spill
H8
H8 Main: CMS MTD (Giulia Sorrentino)
- Four modules tested in the first week
- Minimal plan completed by this Friday/Saturday
- Is Week 21 still available? We may receive some new boards on time to be tested during this additional week. If the test are succesfully we may cancel our next parallel run (7-14 June).
H8 Incoming: TOTEM PPS - Week 20 (Please Add Your Name Here)
H8 incoming: SND@LHC - Week 21 (Christopher Betancourt, Ettore Zaffaroni)
- Want to perform an energy calibration to our SND@LHC HCAL/muon system
- Original dates: May 24 - June 7
- PCB production delay means some of our detector planes are not ready by the first week
- Detector planes being assembled now, should be readyt by next Friday for installation (May 26)
- New timeline, reduced number of tests and additional beam time in week 31-32 (July 31-August 13)
- SciFi Tracker installed on 24/05, useful to have MIPs to test it in Week 21
Parasitic Users
Reporting for parasitic users is optional.
H6 Parasitic: ATLAS MALTA (Ignacio Asensi)
Ready for high intensity beam. We will coordinate with EP-Pixel for the rates. Already passed safety check before.
H8 Parasitic: STRAW TRACKER RD (Temur Enik, Katerina Kuznetsova)
- installed at the beam dump on Thursday, safety visit on Friday, taking data
- if no other users are expected for the beam dump betweek weeks 22 and 26 (start of the next scheduled test at H8 beam dump), we would like to ask if the setup can stay there during that period (preferably operational).
AOB
Minutes by the respective speakers, edited by E. B. Holzer and M. Schwinzerl
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