CALO CommissioningPlans

Pascal Perret

LPC Clermont

17 March 2008

2

The passive dosimeter sensor boxes are ready (but TLDs are still to come)

We have to install them: SPD A-side: done Other Access ?

17/03/2008

Radiation monitor installation

Pascal Perret - LPC Clermont

3

HCAL: activities on C-side (Yuri): End of access & closing on Tuesday

CALO C-side closed HCAL & ECAL A-side partially opened (aligned) for Muon

New access needed for ECAL A-side1 power line lost = 25 PMInstallation of radiation monitors at the same time?

SPD A-side access: SPD VFE & LED

Closing on Tuesday morning next week?A-side stoppers installation on Wednesday

Installation of radiation monitors Manpower needed to move the detectors! Muon survey measurements on Thursday (~3 hours)?

17/03/2008

Detector access and movements

Pascal Perret - LPC Clermont

4

Wiener Maraton PS

The 2nd batch has to be sent on Thursday 20th (back on April 2nd) 

For C-side: • VFE PS/SPD  unit: 2394085 in rack L3B03

• HV/LED unit for HCAL: 2494003 in rack L3A03

• HV/LED unit for XCAL: 3494056 spare in control room For A-side:

• FE unit for ECAL (crate 21): 3593091 in rack L3B14

• FE unit for PS A-side (crate PRS 7): 3593092 in rack L3B14

We will need:Spare one for PS/SPD VFE C-sideNO HV/LED unit for HCAL A-side (or C-side when access finished)

Last news: all our Maraton have to be sent to Wiener!!!

17/03/2008 Pascal Perret - LPC Clermont

5

No L0 CALO

DSS/DCS Alarm information Have cosmics on A-side with ECAL & HCAL:

Thursday go to global commissioning? LED PS/SPD:

PS/SPD: complete C-side (TELL1), start on A-side Install PVSS project on A-side SPD access this week: LED tuning, mapping, …

“Electronics activities” (LAL): week 15 (April 7th)

Beam pipe with vacuum from March 27th until April 1rst 17/03/2008

Commissioning

Pascal Perret - LPC Clermont

Clean up the electronics platform

717/03/2008

Do you find the error ?

Pascal Perret - LPC Clermont

Here is a photo of ECAL electronics platform A side (center):

Could we have a problem?

Yes!!! (next slides …)

817/03/2008

How to have a catastrophe …

Pascal Perret - LPC Clermont

The grid fell down without any reason …

917/03/2008

How to have a catastrophe …

Pascal Perret - LPC Clermont

And push the stool …

… 12m below!

Hopefully nothing happened and I don’t describe you what could be …

1017/03/2008

Conclusionor how to avoid a disaster …

Pascal Perret - LPC Clermont

We had already 2 problems: Some PS cables have been cut and damaged during detector

displacement with a not used pulse generator This stool which falls down

Actions have to be taken: Don’t use anything on the electronics platform

which is not absolutely needed! Remove it when you leave Don’t leave anything on the electronics platform

which is not absolutely needed! (we will check!)