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Gas systems weekly project meeting
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Europe/Zurich
32/1-A24 (CERN)
gas systems project meeting
Gas systems
piquet:
25/9
TRD O2 alarm -> TICKET LPh to look at trends
04/09
nothing
28/8
ATLAS-TRT sensor in distribution not working. Alarm blocked 6324(?) elog to be done -> TICKET
21/8
NA62 straw mixer CO2 supply -> TICKET
MDT flowcells rack 68 chn 11-22-> TICKET -> solved by Pieter. check elog/jira
new tickedt from Philipp for some channel MDT -> check ticket
CMS-FGR problem --> TICKET no action taken by the piquet. Temperature/Pressure/(difference setpoint vs measured flow in MFC) --> 2nd TICKET
14/8
ATLAS-RPC low pressure buffer. It seems it is happening also for ALICE MID (here for purif)
7/8
nothing
24/7
MWPC purif non-return valve blocking to check??? TICKET
17/7
CMS-RPC same as last week -> TICKET Hervè
CMS-FGR humidity check
10/7
CMS-RPC - Purifier1 Column A pressure too high during regeneration -> [GASSYSTEMS-716] CMS-RPC - Purifier1 Column A pressure too high during regeneration - CERN Central Jira
LHCb-RICH1 Purif ColB too important pressure drop -> solved. TICKET open close.
3/7
CMS-RPC purifier 3 heating tape -> [GASSYSTEMS-708] CMS-RPC purifier 3 heating tape problem - CERN Central Jira
CMS FGR off due to problem -> [GASSYSTEMS-709] CMS FGR off due to problem after valve replacement - CERN Central Jira
Alarms blocked
TPC: mixer injection too long, PV4003, MFC5002 profibus
TRD: mixer not in run, purifier columns
MID: profibus in mixer
RPC: electrical status
TFC: DSS hardware interlock
SciFi: electrical status
26/6
CMS-FGR Huber alarm -> [GASSYSTEMS-710] CMS-FGR Huber alarm - CERN Central Jira Maria Cristina already sent info to LaboTech
CMS-FGR dewpoint alarm -> [GASSYSTEMS-711] CMS-FGR dewpoint alarm when no flow at input of recovery - CERN Central Jira can we do something to avoid?
CMS N2 flow -> delay on the alarm? 2 minutes? check limits? [GASSYSTEMS-712] CMS N2 flow and alarms - CERN Central Jira
19/6
ATLAS-RPC rack 66 chamber pressure fluctuations --> [GASSYSTEMS-689] ATLAS-RPC rack 66 chamber pressure fluctuations - CERN Central Jira
CMS-DT pump --> [GASSYSTEMS-691] CMS-DT pump broken (motor?) - CERN Central Jira & Miguel to follow-up -> TO BE SEND TO KNF
8/5
ATLAS-RPC heating tape not working -> [GASSYSTEMS-632] ATLAS-RPC heating tape not working - CERN Central Jira (replace heating tape + separate power supply easy for 2 and 3, purif 1 during LS3) [GASSYSTEMS-670] ATLAS-RPC Purif 3 ColB repair - CERN Central Jira
RICH1 pump regulation alarm and gas consumption check needed --> [GASSYSTEMS-634] RICH1 update C4F10 consumption - CERN Central Jira
RICH1 pressure difference like in ALICE TRD -> [GASSYSTEMS-635] RICH1 pressure difference like in ALICE TRD - CERN Central Jira
24/4
ATLAS-TGC 2nd liquifier to be tested -> [GASSYSTEMS-636] ATLAS-TGC 2nd liquifier to be tested - CERN Central Jira
10/4
ALICE-MID purifier temperature HH alarm -> [GASSYSTEMS-600] ALICE-MID purifier temperature HH alarm - CERN Central Jira
3/4
CMS-RPC purif 1 not doing vacuum during regeneration [GASSYSTEMS-590] CMS-RPC purif 1 not doing vacuum during regeneration - CERN Central Jira
need to be tested after maintenance of the pump. update ticket.
ALICE-TRD Xe recuperation how to inject [GASSYSTEMS-591] ALICE-TRD Xe recuperation how to inject: procedure - CERN Central Jira
some clear text for electrical status page in winccoa --> [GASSYSTEMS-657] some clear text for electrical status page in winccoa - CERN Central Jira
ALICE, ATLAS, CMS IR iC4H10 calibration bottles & SF6 -> [GASSYSTEMS-658] ALICE, ATLAS, CMS IR iC4H10 calibration bottles & SF6 - CERN Central Jira
ALICE
70 report from Anité [GASSYSTEMS-70] TPC gas quality - filters to Benoit - CERN Central Jira (I don't see the report, can you please add it?)
TRD is leak back? [GASSYSTEMS-568] ALICE TRD leak search tests/interventions log - CERN Central Jira
TRD membrane to remove from the loop -> leak increased with membrane module in loop TICKET
TRT leak issue still ongoing -> update ticket
several alarms blocked: [GASSYSTEMS-628] ALICE alarms blocked - CERN Central Jira
TOF gas mixture analysis -> [GASSYSTEMS-639] TOF gas mixture analysis - CERN Central Jira & ELOG
TRD membrane is connected ? -> [GASSYSTEMS-717] TRD membrane status - CERN Central Jira
P&ID drawing check who is doing -> [GASSYSTEMS-736] ALICE P&ID drawing check - CERN Central Jira
MID swap of pumps during MD because sometime the system stop -> TICKET
ATLAS
TS1->MDT frequency converter (need to be replaced TICKET), RPC distribution rack regulation valve (TICKET), RPC secondary mixer (TICKET)
MDT pressure sensors -> Pieter TICKET done
RPC purif 3 circuit breakers & meeting -> [GASSYSTEMS-718] RPC purif 3 electrical issue - CERN Central Jira --> meeting when?
problem with n-penthane tank level measurement -> [GASSYSTEMS-603] TGC problem with n-penthane tank level measurement - CERN Central Jira
ATLAS-TGC flow difference --> [GASSYSTEMS-612] ATLAS-TGC flow difference - CERN Central Jira
ATLAS ID flushing follow up of incident of 10 April --> [GASSYSTEMS-614] ATLAS ID flushing follow up of incident of 10 April - CERN Central Jira
VERY IMPORTANT: [GASSYSTEMS-618] ATLAS ID flushing change of gas procedure, dewpoint warning and alarms - CERN Central Jira
several alarms blocked: [GASSYSTEMS-629] ATLAS alarms blocked - CERN Central Jira
TGC differential pressure sensor for pump filter: is it there? if not why? -> [GASSYSTEMS-640] TGC differential pressure sensor for pump filter: is it there? if not why? - CERN Central Jira
ATLAS-RPC Purif 3 to be regenerated -> follow-up [GASSYSTEMS-670] ATLAS-RPC Purif 3 ColB repair - CERN Central Jira COMPLETED?
MDT analysis after pump -> probably there is already a TICKET check - pipe installed
ATLAS-TGC pressure -> [GASSYSTEMS-730] TGC Broken pressure sensor Rack 61 to replace - CERN Central Jira
P&ID drawing check who is doing -> [GASSYSTEMS-737] ATLAS P&ID drawing check - CERN Central Jira
MDT pressure sensors in rack 63 --> TICKET from Philipp. Probably faulty sensor identified.
elog 6704 and 6705 for work to be done when MattiaB absent (Andrea and Fabio) -> Andrea, Damiano
TRT one valve leaking and one pressure sensor to check -> TICKET Gianluca, Davide, Jo, Fabio will do tomorrow 05/09
nC5H12 refill for GIF -> follow ticket and/or UPDATE
CMS
RPC purif 3 circuit breakers & meeting --> STEMS-718] RPC purif 3 electrical issue - CERN Central Jira --> meeting when?
RPC purif 3 test col B after replacement of heating tape -> TICKET
RPC purif 3 test col B now after the current regulator is leaking -> TICKET or check
RPC purif 3 ATLAS & CMS. After how many cycles we have the problem? -> TICKET
R134a insulation - isol'tut to check and see what to do -> ticket IO [GASSYSTEMS-578] R134a insulation - isol'tut to check and see what to do - CERN Central Jira
How much gas flow we need for the RPC purifier? --> OFFLINE with Maria Cristina [GASSYSTEMS-579] CMS-RPC How much gas flow we need for the RPC purifiers? - CERN Central Jira
RPC bypass pump too much closed --> [GASSYSTEMS-604] RPC bypass pump too much closed - CERN Central Jira
RPC H2O ExhToDist CMSAUX_An_XANA9319AS 159 5000 ppm, but is it not normal? --> [GASSYSTEMS-605] RPC H2O ExhToDist 5000 ppm is ok? - CERN Central Jira
RPC double flow test -> ticket? exists? [GASSYSTEMS-392] RPC test of double the flow in one rack - CERN Central Jira
RPC with CO2 like ATLAS and effect on R134a recuperation -> [GASSYSTEMS-606] RPC with CO2 like ATLAS and effect on R134a recuperation - CERN Central Jira
GEM chamber pressure alarm for stop -> ticket with GEM responsible [GASSYSTEMS-580] GEM chamber pressure alarm for stop - CERN Central Jira
R134a Upgrade (hardware and software) to be tested -> [GASSYSTEMS-594] R134a Upgrade (hardware and software) to be tested - CERN Central Jira
alarms blocked: [GASSYSTEMS-630] CMS alarms blocked - CERN Central Jira
DT vaisala reading difference between SG and US -> [GASSYSTEMS-677] CMS DT vaisala reading difference between SG and US - CERN Central Jira
test KNF pump for R134a recuperation --> [GASSYSTEMS-643] test KNF pump for R134a recuperation - CERN Central Jira
CMS-FGR -> TICKET should we add a module. Do we need to buy something? follow-up
CMS-FGR -> TICKET Maria Cristina già fatto per bypass
CMS-FGR -> TICKET flowmeter for Huber
P&ID drawing check who is doing -> [GASSYSTEMS-738] CMS P&ID drawing check - CERN Central Jira
CMS-RPC IR not stable -> elog Maria Cristina -> TICKET
GEM 904 would like to move their mixer to PLC -> ticket already exists. check [GASSYSTEMS-468] Re: 904 GEM gas system - CERN Central Jira
CSC 904 new panels -> for LS3 -> ticket Andrea? [GASSYSTEMS-581] CSC at 904 - CERN Central Jira
RPC 904 new line -> ticket Andrea? [GASSYSTEMS-582] RPC 904 new line - CERN Central Jira
RPC904 cleaning of lines -> follow ticket [GASSYSTEMS-556] 904 RPC gas distribution panels not working properly - CERN Central Jira
LHCb
TS1-> RICH1 leak search (postponed), SciFi some work from others expected
RICH1 water cooling -> [GASSYSTEMS-719] RICH1 water cooling - CERN Central Jira and workshop need?
RICH2 CO2 from purifier-> check how to decrease-> ticket IO [GASSYSTEMS-585] RICH2 [CO2] from purifier-> check how to decrease - CERN Central Jira
RICH2 form where the CO2 entered -> from backup? how long was it in stop? -> [GASSYSTEMS-607] RICH2 form where the CO2 entered -> from backup? how long was it in stop? - CERN Central Jira
RICH1 what we learn from 1st fill -> [GASSYSTEMS-608] RICH1 what we learn from 1st fill - CERN Central Jira
for example: RICH1 membrane bypass is a problem?
summary of the C4F10 bottles --> TICKET or ELOG -> [GASSYSTEMS-660] summary of the C4F10 bottles - CERN Central Jira
alarms blocked: [GASSYSTEMS-631] LHCb alarms blocked - CERN Central Jira
RICH2 IR calibration -> [GASSYSTEMS-661] RICH2 IR calibration - CERN Central Jira
RICH1 should we add some Ni to the purif? ask Christopf -> [GASSYSTEMS-662] RICH1 should we add some Ni to the purif? - CERN Central Jira
RICH1 C4F10 consumption --> TICKET Maria Cristina or update
4 gr/y -> 2 ppm? 3000 ppm -~> 4 kg/y
RICH2 filter blocking -> [GASSYSTEMS-731] RICH2 pump filter differential pressure sensor not working - CERN Central Jira
P&ID drawing check who is doing -> [GASSYSTEMS-739] LHCb P&ID drawing check - CERN Central Jira
RICH1 cleaning , when? not before mid-september? -> TICKET
RICH1 recuperation. Software (8-10/9) and hardware (Davide, Damiano, Patrick, Jo, Mech 8-10/9, insulation and 3T and 1 4-20mA) modif. then ready for recuperation
cleaning at earliest on Spet22nd, otherwise next MD Oct 6th. --> TICKET
RICH1 remove membrane rack before end of HL-LHC operation and/or change piping-> TICKET
RICH2 injection through recuperated CF4 -> TICKET
NA62
CEDAR maintenance needed -> [GASSYSTEMS-609] CEDAR maintenance needed - CERN Central Jira
change of pressure sensor used for leak warning? -> [GASSYSTEMS-741] NA62-CEDAR move to keller pressure sensor? - CERN Central Jira
GIF++ TGC gas system and return flow: [GASSYSTEMS-624] GIF++ TGC gas system return flow - CERN Central Jira
[GASSYSTEMS-674] MFCs to be checked - CERN Central Jira :
- Fondoscala del MFC di R134A e sensore umidità del gas RPC [GASSYSTEMS-645] Fondoscala del MFC di R134A e sensore umidità del gas RPC - CERN Central Jira
- Neutrino platform gas analysis: [GASSYSTEMS-622] RE: Analisi di outgassing di diversi materiali - CERN Central Jira
- ALICE T10 MFCs: [GASSYSTEMS-669] ALICE T10 TR: calibration MFC pour C4F10 - CERN Central Jira
- ND280 MFCs to check [GASSYSTEMS-679] ND280 MFCs to check - CERN Central Jira
non-LHC safety valve --> check lista di Fabio
[GASSYSTEMS-172] non-LHC safety valves to be verified - CERN Central Jira
ELOG - safety valves to be verified for non-LHC systems
Additional requests/projects/discussions
887 CEDAR new "mixers" --> [GASSYSTEMS-509] CEDAR for beam lines - CERN Central Jira
AMBER
EDMS leak test?
test certificate x-ray?
ATEX certificate?
who is technical coordinator
resource manager Oleg D?
no money? should we stop? and resume in 2026?
Commissioning when? -> TICKET
when they would like to start? Moritz? -> ask
PROJECT 2025
summary TICKET
examples of topics for the common discussions:
-cms id flushing -> Andrea
-cms r134a operation and spare -> Andrea
-cms cf4 operation and spare -> Andrea
-atl tgc nc5h12 -> Kacper
-Analysis boxes -> LPh
-C4F10 new recuperation installation -> Patrick
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