The template for the minutes of meeting for the weekly PS & SPS users meeting can always be found using this link: https://codimd.web.cern.ch/0aHs5uqmSPuII76-SaaQdg
Please pre-fill them before the meeting with a summery of your activities!
August 1st: User meeting on zoom only
September 4th: User meeting exceptionally on Wednesday on zoom only (05.09 is CERN holiday).
Updated user schedule v3.1.0.
Please get in contact, if you want to take one of the weeks without assigned main user - Tanja (tetiana.shulha@cern.ch) is collecting all requests.
Exchange Magnet H2 beamline: planned for 30.7.-1.8.2024:
No Beam to North Area from Tuesday morning until (expected) Thursday afternoon/evening.
E.B. Holzer, M.R. Jäkel
Proton Run 2024
Ion Run 2024
Reminder: Beam time exceeding the limits of 2 weeks PS beam time and 1 week SPS 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.
Target intensities:
Upcoming SPS MDs next weeks :
https://be-dep-ea.web.cern.ch/content/md-planning-north-area
Dedicated SPS MDs - if not anounced differently - are taking place from 8:00 to 18:00
Excellent availability of 97.1% this week.
Main issues:
Development:
Issues this week:
Smoothing data taking in all experimental area.
EAR1: 63Cu(n,g)
EAR2: end of the campaign on Ar(n, g); on Monday 29.07 cool down of the activated Ar (8 h) and venting.
On 31.07 start of the measurement of the radioactive 88Zr(n, g) capture reaction. Auxiliary measurement with calibration sources and Au, Pb, C samples for normalization and evaluation of the background.
NEAR: Activation measurements
Protons received in standard conditions.
We kindly ask, if possible in the PS schedule, to receive more protons in the period 16.08-10.09. 88Zr has an half-life of 83 days. A more intense beam can compensate for the reduced amount of mass available.
General: The power converter gateway needed a reboot on Tuesday night. Caused a 5 minute beam stop for all east beams.
T09: Good operation. Recurrent issues with T09.BHZ031. EPC first line switched the power converter to the spare and it works better now.
T10: Smooth operation.
T11: Scaffolding installed in preparation for P349 installation and beam test.
Very good week in T8, protons reached 2.84E16, and CHARM TID went up to 530 Gy - close to our record, speaking of olympics -
In IRRAD we finished with the cold irradiation ATLAS iTk strip modules and the INFN LHCb PMTs.
Continuing with long-term irradiation experiments (TE-MSC, EN-MME) and EP-DT-DD R&D (DRD3).
We will need again few steps with lower beam intensity ~4e11p/cm2 during the week.
In CHARM we didn’t move the rack, only modifications of setup in G0 (the low intensity position close to our patch panels)
Many thanks to the craning team for their help and efficiency!
Many thanks to Andre Rummler and Branislav Ristic for the telescope assembly and debugging.
And many thanks to operators and Dipanwita for requested beam files.
Great week of data taking, tested both types of sensors with different beams. For 15 GeV protind we found the configuration for oval beam, which covers all sensors homogeneously. A lot of data recorded with the telescope for offline analyses.
With 0.2 s spill stress tested the readout.
please see the slides
Overall successful test beam for BL4S
We have completed pressure scans for different beams especially muon and momentum values which are directly related to what winner teams of this year want to measure when they come at CERN, in September.
With valuable suggestion of Maarten, we created muon beam always by using beam stopper in.
Maarten Van Djik compared the results of pressure scans for different HV values for PMT (before the increase in HV on the XCET040 PMT) and from Saturday night/morning (with the increased HV). It seems that XCET040 has recovered the performance from 2023:
The issue with the XCET043 was that it was switched off, no idea how that could have happened. Since the gas was contaminated by environmental air, we have to cycle 4-5 times from 2 Bar to 0.1 Bar to “flush” the device.
Huge thanks to Maarten van Dijk for his support and advice! And also to Inaki Ortega Ruiz to help us a lot on debugging the issues related to XCET43. BL4S would not be possible without many helping hands, including BE-EA group; Aboubakr Ebn Rahmoun and all from infrastructure services; Jocelyn Tan and everybody else at BI; and E. Barbara Holzer.
Outlook: Testbeam in September (Weeks 37 & 38) where two winning teams perform their experiments at CERN => If you would like to meet the students (e.g. just to say ‘hello’ or to support them during the data analysis), please let us know. The students and us, we would be super grateful and happy to meet you!
Taking data, beam excellent, very efficient installation, thanks to Abou & C.
and outgoing users in T9 & T10
Target Intensities
T2 | T4 | T10 | T6 | from |
---|---|---|---|---|
30 | 75-85 | 55 | 30 | 02.08. |
30 | 42 | 21 | 30 | 12.08. |
H2: Good operation. Exchange of quadrupole ongoing.
H4: Good operation.
H6: Good operation. Instrumentation reinstalled after e± run finished.
H8: Good operation.
M2: Good operation. The MS2 magnet for NA64mu is limited to 800A which is ok for the experiment due to cooling limits. TE-MSC will intervene at an agreed time with the user in the coming weeks to confirm the reason.
P42/K12: Good operation. Only one short downtime (15 min) due to a problem with the Bend 2 power supply control of K12. From tomorrow, 09:30, NA62 will be using the beam in dump mode with higher intensity on T10 (55 units).
We started used the beam at Friday afternoon after safety visit.
The commissioning and alignment of tracking detectors was done during weekend.
The muon calibration of all hadron calorimeters was performed at Monday. The beam and trigger tuning and final alignment of beam counters and tracking stations is ongoing.
Finished data taking last Tuesday morning
Summary:
Detector consisting of
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The installation is in M1 (pic top right), we had pedestal data-taking with Bon with stable back-end to front-end connection
Did various tests and developments over our off-beam week, all completed succesfully.
Ready to take data for 5 weeks!
The week offered a extremely high duty cycle of the SPS, which allowed us to collect the data very fast, even if our beamtime ended one day in advance due to the MD of tuesday
During this week we continued the tests started in June in the T9 area, by testing OREO, a full prototype of an electromagnetic calorimeter based on oriented crystal, at higher energies, up to 200 GeV/c
The results look very promissing
Every time we changed the beam momentum, NA61 experienced a beam displacement. We agreed to call them to stop their run when we were switching and calling them back once we were done
Special thanks to Sylvain for all the assistance inside the experimental area, to Nikos for the beam related questions and to all the CERN staff
We finished data taking last monday morning:
We have run once with muon beam for alignment, then mixed hadrons (10 ↦↦ 120 GeV) and electrons scans (from 10 ↦↦ 100 GeV).
The team is very happy with the quality of the beam (very high SPS duty cycle) and the data we’ve acquired during last week.
Left: Picture of the area with all the setups; Right: Dual Readout and MIPs timing layer setups
The EP-FTS team is very grateful to all the experts from SPS who made all of this possible!
We have still the same setup in the box (cold) since the last test beam. I topped up yesterday the Lauda chiller and put it back into operation. Telescope moved back into beam position. Currently trying to fix some communication issues and might do some test runs (without telescope; telescope stays off to protect it). Operation primarily remotely. Partial dismantling next week to allow HGTD data taking.
Characterization of H2M thinned samples (30um).
Telescope setup already commissioned and ready to be used.
Sample installation will happen today.
Data taking will start as soon as beam is back in the evening.
Friday morning, telescope will be momentarily deployed for beam profiling.
Continuous data taking expected from Friday afternoon on.
Testbeam for the next two weeks aiming to test LGAD+ASIC (ALTIROC3) hybrids non-irradiated and irradiated.
Taken a lot of data with maily hadron (~85%) and electron (~90%) beams.
Мanaged to complete the entire program despite the shortened beam time, Big thanks to all who helped us!
Just started 1 week of testbeam for the VELO TimePix4 team.
VELO TimePix set-up:
Ideal beam: “usual” mixed hadron beam, rate as high as possible (>= 1e6/spill), size ~cm
Not yet tuned the beam (of course) due to the technical stop. To be done this evening.
One note: the MCP-PMTs are necessary for meaningful data taking
The setup consists of two platforms: a gaseous triple GEM tracker and a trigger platform together with a set of irradiated Diamonds.
The recabling of the setup was carried out yesterday and today we will be ready to start with setting up of the system.
The beam characteristics were already shared with the beam physicst with a preference to small beam spot ~4-6 mm rms in both planes, pions with momenta 180 GeV/c and rate the maximum possible.
The physics program is very board and amoung the most impotant measurements are the bevavour of the CCE while illuminated with different LED diodes.
QFib setup is already installed. DESY table is used. All cabling is done.
DAQ setup is on going. Safety Ispection at 4:30 PM
Week 32 is the first of 4 weeks of test for IDEA Dual Readout Calorimeter.
Program of the week 32:
Details from Korean Team:
QFib will be ready and optimise beam requests once parasitic week is completed.
Minutes by the respective speakers, edited by E. B. Holzer, M. Jäkel, T. Shulha, and M. Schwinzerl