Minutes of the PS-SPS Users Meeting held on June 30th 2022

News from the PS & SPS Physics Coordinator (E. B. Holzer)

Preliminary planning on 2023 physics start - please note that these dates will still evolve:
10.4.2023: ISOLDE
17.4.2023: PS EA, nTOF
15.5.2023: AD/ELENA

SPS NA is work in progress - it might be delayed to May

Next User Meeting: Thursday, 7.7.2022 at 11:00

User Schedule Updates

PS Machine Report (Alex Huschauer)

Several minor issues perturbed PS operations during the last week (10 MHz cavity trips, unavailability of beam from the injectors due to electrical glitch).
Beam stop today from 7:00-15:00 for intervention on the electrical network. Several interventions ongoing in the shadow:
- repair of Linac3 ITH corrector magnet
- C10-46 amplifier repair
- invesitgations of the cable routing inside the ring
- electro valve replacement in the EAST area
restart expected from 15:00, all beams expected to be available towards the end of the afternoon

SPS Machine Report (Arthur Spierer)

North area
- No ZS issues since Thursday 23
- 3.5e13 ppb, T2/T4/T6/T10: 57/72/139/33
- RF off @400ms start-flat-top
HiRadMat
- Started on Tuesday due to SPS/LHC transfer setting up on Monday
- Run completed on Wednesday afernoon
- 1/2 MD on PS-SPS transfer studies
Access from 7 to 15h on Thursday
Upcoming this week
- Beams for LHC scrubbing, LHC MDs and NA
Next week
- MDs

Safety (E. Dho, J. Devine, L. Di Giulio)

n_TOF (M. Bacak)

No major issues - continuing to take data in all 2(+1) experimental areas.
Monday 7h30-13h30 stop for change of irradiation configuration @ NEAR, in parallel change of setup in EAR2.
Protons on target as expected.

East Area Beam Status (B. Rae, D. Banerjee, J. Bernhard)

T9 moved to the low momentum configuration and will stay like this until July 20th. The beam was checked over the weekend before the removal of the beam instrumentation and the reference position of the proton beam on the BTV and the reference values for the BLMs around the target have been saved to be monitored from time to time during this period. Nothing to report for T10/T11.

East Area Users Tour de Table

T8: IRRAD and CHARM (Giuseppe Pezzullo)

Weekly access went well. In IRRAD we removed the EP-DT setup (T/RH FOS) since the target fluence has been achieved. Instead, we installed the LHCb LAPPD setup and a new photodiode for SET measurements (R2E). All other experiments will be continuing (ATLAS Pixel, TE-MSC, LHCb Defect Modeling on High fluence Planar Sensors, etc.). The pumping group (T08.093), where an EV was changed last week (radiation damage) will stay in IRRAD zone 3 for the moment. In CHARM, from yesterday, a calibration week has started. Concerning the beam studies on T8, on Tuesday 28th, we gave some hours to OP for optimization (main issue=removing beam tail on BPM1 (X-axis)). At the end OP decided to roll back to previous settings, since the sweep on BPM1 was still hard to remove. After the test was over, we decided with OP to install some Gafchromic films one just after the BPM1 and yesterday one before the BPM2. We will contact OP today during the day to show the results of the test. Many thanks to all the people involved!!!

T9: Sherpa (Marco Garattini)

We are installing our set up in the T9 experimental Area
We will perform the safety check when the installation will be completed
We hope to start with the beam commissioning tomorrow and then start with our measurements

T10: ALICE ITS3 (Paolo Martinengo)

Quite nice beam conditions, measured what we planned/needed (Analog chips, different pitches)
New crew, set-up modified, ready to start new set of measurements (Digital chips)

HiRadMat (P. Simon)

HRMT55 BLM3 Experiment, test of production and prototype BLMs for CERN/ESS/FAIR. Took beam from Tuesday 9h00 until Wednesday 16h00 (no beam during the night), finished experiment’s pulse list in its entirety. Excellent availability. Continuous parasitic data-taking during rest of the year.

Found an issue with the BPM Hardware trigger being extremely noisy in the HRMT control room, to be investigated during TS in September. Extraction kicker delay was wrongly copied from the LHC cycle to HRMT, no impact for this experiment but to be monitored strictly for upcoming HRMT runs. Interlocked large emittance beam from the PSB worked with last years performance.

North Area Beam Status

H2, H4, H6, and H8 Beams (B. Rae, N. Charitonidis, D. Banerjee, A. Baratto Roldan, A. Gerbershagen, J. Bernhard)

H6: All ok.
H8: Gas type changed in Cherenkov detectors (Now helium), will change again on Monday.

P42 and K12 Beams (J. Bernhard)

Stable operation with some rare trips of magnets.

M2 Beam (D. Banerjee)

Quad 36 was found to have a faulty regulation card just before COMPASS went to the target dipole OFF mode. This has been replaced on Tuesday. The beam will probably need to be sligthly tuned when the target dipole is switched back ON. This is planned for today when the beam is back.

North Area Users Tour de Table

H2: NA61 Shine (Speaker)

H4: LHCb ECAL - Outgoing (Speaker)

H4: CMS BRIL (Deniz Sunar Cerci)

We’d like to start with thanking to the people from PS/SPS, Patrol training (Bastien) and Safety checks (Letizia, Eveleyn), technicians who brought the DESY tables.

We installed our first set up in the experimental area
We performed the safety check when the installation was completed then started to take data.
All seems to be ok.

H4: ATLAS ZDC - Week 27 (Riccardo Longo)

Goals: test and calibrations, in view of HI Run in November, of:
- All the 8 ZDC modules (4 x arm), after 2021 refurbishing campaign
- The 2 new ATLAS Reaction Plane Detectors (1 x arm), constructed after successful test beam experience @ H2 during 2021
- Full ZDC + RPD chain for both detector arms
Beam requests:
- e- beam @ 150, 200 and 250 GeV. We know purity is limited, if our recollection of exchanges w/ Nikos (thanks!) is correct, we should be able to get up to 70% pure e- up to 250 GeV/, which would be great! A rate of 10-30k particles per spill would be working well for us.
- p beam @ 250 and 300 GeV (or 300 - 350, whatever is easier to be established). Same rates considerations as above.
Setup overview:
- Technical meeting w/ Michael (thanks!) held on June 14th.
- Hardware needs: XSCA Table + GOLIATH table (1x1 m2 at least)+Patch panel
- Beam pipe in between GOLIATH magnet and GOLIAT table to be removed
- 3 different setups, need craning to switch. Requests via EDH already placed, see EDH 9315400 and EDH 9316559
- Alignment & survey needed (Wednesday & Friday, respectively) - in contact w/ Benoit to arrange.
Equipment, Test Beam Crew & Plans
- Detectors already @ CERN, as well as most of the equipments. Only a few DAQ spare part still on their way, expected beginning of next week.
- Transport of detector to the area already planned
- 50% of test beam crew on site, other 50% expected on the weekend.
- Installation plan:
  - all support & trigger structure prepared outside, in B42 & the neighboring caged area, for fast installation on next Wednesday. Craning planned in the morning, as soon as XSCA and GOLIATH table will be free and craning team will be available.
  - ISIEC planned for Wednesday at 3:30 PM
  - Need access to control room, 2 VME crate space in rack and 3 fixed ethernet ports: already discussed w/ Nicolas (thanks), we need to move forward with DAQ installation before July 5th, when the focus of our DAQ expert will have to shift to start of LHC pp operations.

H6: ATLAS MALTA (Speaker)

H6: ATLAS ITK PIXEL (Andre Rummler)

H6: ALICE ITS - Parasitic (Paolo Martinengo)

Commissioning completed, first measurement over night, ready for high intensity

H6: EP Pixel (Justus Braach)

New APTS+DPTS Caribou setup installed in telescope in H6B. Telescope re-aligned to beam, as it is now a bit lower than in previous beam periods. Data taking since yesterday afternoon. High rates (~3E6 / spill) required, to get enough particles in our small test devices. Currently plan for changing setup on Friday early morning (FASTPIX, 2-3 hours access), then again on Monday morning (CLICpix2, 1-2 hours access).

H6: EP Hybrid - Week 27 (Vagelis Gkougkousis - not connected, at beam area)

Finished one week of mostly smooth data taking (week 26), though rates were exeptionaly low for our application and beam qute wude.
MIMOSA telescope at H6B incompatible with current beam rate (~90 clusters per event)
Mainly debugging and DAQ improvements this week in preparation for primary user at week 28
Setup remains within the area unchanged, profiting from beam down period to update mechanics
Would require higher rates of ~ 8e15 for week 28, highest comatible with MIMOSA type telescopes
Coordiantion with ATLAS-ITk to see if we can share part of the infastructure but also recover additional beam time on ADIA telescope (seems free for most of July and August).
Would like some access if beam down during this week to test modifications

H6: ATLAS ITK STRIP - Week 27 (Jiri Kroll)

DUTs - main plan (R0 module proton irradiated at CERN IRRAD) and backup options (R1 module with neutron irradiated sensor and unirradiated R2 module)
DUTs - logistics (R0 module will be moved from CERN IRRAD to SPS testbeam area on Wednesday morning, July 6)
Beam parameters and infrastructure (120 GeV charged hadrons, 1E+4 particles per spill)
MPI cold box and module holder (MPI cold box should be ready, module holder has been designed and manufactured in Prague and will be delivered)
Other necessary equipment (list of other necessary equipment is available in the presentation)
People, shifts, patrol rights -> 3 8-hours shifts planned per day, including the night shifts, more then 8 people available for shifts, patrol rights will be communicated with Bastian

H8: ATLAS Tile (G.Usai)

After few glitches last week, we have now the two phase-2 upgrade module (one for barrel and one for the extended barrel) fully functional and integrated. Data taking is progressing smoothly:
-Muons run program about 60 % complete,
-Electrons about 70%
-Low energy hadrons program will start on Monday when we will switch the Cherenkov to CO2.
This morning we are installing in one of the module a protoype MAPMT readout (new R&D for far future FCC-like) with a 64 ch readout of a standard cell. This aim to study/extend the granularity of the calorimeter cells.
We plan to scan this special cell while completing the program for phase-2 electronics.
Transition to next user (in PPE168) Position of table/Fences mounting to be defined.

Many thanks to all the BE and NA teams for their support!

H8: IDEA CC - Week 27 ()

K12: NA62 (R. Piandani)

Data taking smooth. Yesterday night one TRIM in P42 line went off, for one burst we had the beam directly in the detectors.
Still problem in closing the access due to access magnets.

M2: COMPASS (Michael Pesek)

First subperiod of period 2 finished on Tuesday
Destroy polarization & take alignment data with no field in target magnet on Tuesday
Reversing polarization until ~today afternoon
Issue with Q36 since Saturday evening->discprepancy between measured and real current ->changes in focusing
Took a while to understand, regulation cards exchanged
Will need to retune the focus again due to different current offset compared to previous period
Beam properties changes can affect the stability of data-> to be avoided if possible