04.02.13 1

Long Shutdown 1

Oleg Maev

04.02.13 2

Rooms for activity. 

Oleg Maev

1. HV2. MWPC HV-training3. Replacement of broken chambers4. Electronics5. ECS6. Shielding behind M57. Replacement of all control PCs and move from PVSS to WinCC-OA.8. Revision of all spare chambers.9. LV on FEBs (optimization, fuses, improvement of PP – ?)10. Space alignment - ?11. Air (?) and water cooling12. Conditioning of the Gas check monitor, monitor on Aging (?)13. TWIKI, manuals, instructions14. Production/repairing of spares

04.02.13 3

HV 

Oleg Maev

1. PNPI-HVa) PNPI-HV channel doubling – Oleg, Nikolay - 2013

- testing and calibration new modules in the LAB- installation modules in the PIT- Installation of additional LV-cables for PNPI-HV control

b) run the system with new USB-interface – Mikhail - 2013c) check/test /recalibration of old modules in the PIT - 2014d) PVSS rewrite – Giovanni – 2013/14

2. CAEN-HVa) check/test(?)/recalibration(?) - ? - 2014

3. GEM-HVa) check/test(?) – 2014b) improving connectors for GEM-HV modules (?)c) PVSS-project is quite different from the rest of HV-projects, loss of

settings (I0) after power-cycle

There is an advise from Clara to make HV PVSS-projects “lighter”!

04.02.13 4

MWPS HV-training. 

Oleg Maev

1. Conditioning with negative(-2.3 kV)/positive(+2.85kV) polarity all chambers (106CMBs, 420 Gaps) tripped at the end (last three months) of RUN I - Oleg – 2014

2. Same for the whole region M4R4 (192 CMBs, 768 Gaps) to prevent trips due to Malter effect on many chambers at higher Lumi - Oleg – 2014

Nominal gas mixture is needed ~4-5 months before the end of LS1!

04.02.13 5

Replacement of broken chambers

 

Oleg Maev

1. GEMs – Alessandro - 2013

M1A15A1_R - faulty capacitor on HV filterM1C16A2 _L - GEM1 in hard short - to be replacedM1C18A2_L - faulty capacitor on HV filter

2. MWPCs (M5R4 CMBs can not be replaced – no spares) – Oleg, Nikolay - 2013

3. Two sparking chambers in M1: M1A_R4_25B and M1C_R3_21A - will try to train with negative polarity. If no success with training - replace them.

04.02.13 6

Electronics. 

Oleg Maev

1. Only two known HW-problems – Oleg, Nikolay, Sandro - 2013/14

- 18A3 C-side of M3: FEBs 04-09;- 18A3 C-side of M4: ~50% occupancy on ODE chs 130,131

2. ~ 100 FEBs have noisy/broken chs – to be fixed/replaced – Oleg, Nikolay – 2013/14- lack of spares – revision of already replaced FEBs is needed! - MANPOWER!- CARIOCA replacement (?)

3. Improve the grounds on all CMBs in R1/2 M2/3 – Oleg, Nikolay – 2013/14- one of test stands for electronics from b.156 should be moved in the PIT

4. Improve grounds in HV-filters on chambers in some regions – to be studied first!

5. Installation of ferrite cable filters on Control/Signal lines – Oleg, Nikolay – 2013/14

04.02.13 7

Electronics. 

Oleg Maev

6. Check control lines (SB-crates/SB-boards/ELMBs) in Q4M4/5 and Q3M2/3,M4/5- experts are needed to help/investigate HW-problems there! – Valerio - ?- Ethernet-USB converter is under design – ONLINE (Beat)- Looking forward on Ethernet-CANBUS converter – Mikhail, Nikolay

7. Study of broken SB-boards/ELMBs and ODE-boards/SYNCs – Valerio, Maurizio- ?

8. Monitoring of fans in CAEN-HV (?) – Alessandro, Nikolay

9. Optimization of LV on FEBs – Oleg, Nikolay, Davide, Emiliano – 2013/14

- simplified threshold scan procedure is needed- an improvement on LV-distributers would be useful – to be studied first!

04.02.13 8

ECS 

Oleg Maev

1. Fix the bug which does not allow saving the chamber recipe from online tools on CMBs M2R_right and M3R1_right.

(50% of channels in these regions still have width=7 (28ns) as well)

2. Separate ODEs + TELL1s from Control line in PVSS-hierarchy

3. Exclude an option of reloading recipes on FEBs and on ODEs without special reason (hide it from routine reset command) - to be discussed

4. Make recipe DEFAULT equal to nominal PHYSICS everywhere to be safe from sudden loss of the configuration on FEBs and ODEs.

5.Implement a simplified procedure of threshold scan (already developed by Davide - ?)

6. Developing of online monitor for timing and space alignment with data (?). Develop a user-friendly tool on correlation between threshold-gain-timing corrections.

04.02.13 9

ECS 

Oleg Maev

7.Replace all Control PCs – Online – 2013

8.Moving from PVSS to WinCC-OA – Online – 2013

- test of the MUON ECS and careful check of all PVSS-projects - MUON-2013/14

04.02.13 10

The rest (briefly) 

Oleg Maev

1.Improve shielding behind M5 – Burkhard – 2013/14

2.Improve space alignment tools for an opening/closing stations procedure (?)

3.Fix cooling water joints – Infrastructure - just keep an eye on it

4.Think a bit on improvement of air cooling in central regions (?)

5.Revision of all spare chambers at CERN – Oleg, Nikolay -2013/14- test of electronics and conditioning with HV.

6.Conditioning of Gas check monitors for MWPCs and GEMs. Would be nice to have them as an online tool

7.Production/repairing of spares:

- recovering at least one production site for production of spare chambers- electronics!

04.02.13 11

TWIKI 

Oleg Maev

1. Great work has been done by Rolf in last year! But, … we are missing still a lot of important pages.

2. So, we need to arrange some instructions on TWIKI.

Input from experts on some HW/SW procedures is needed!

Just some of most important:- tools, jigs for repair/test of electronics – Nikolay- ODE-recipe – Giacomo, Sandro- update on HV – Oleg- main parameters of all HW should be written down on TWIKI – all experts- …

3. Todo list for LS1: https://lbtwiki.cern.ch/bin/view/MUON/WorkListForLS1

- any inputs are welcome!

04.02.13 12

Conclusion. 

Oleg Maev

MUON is coming to the end of RUN I in very good shape but with some instabilities and with serious lack of spares.

Program for LS1 is quite overloaded but most of tasks are flexible in

the planning.

So, I don’t worry if we will waste time due to interference with another

activities in LHCb