The proposed CDF plan (consultation between Rob
Roser and JJ): 


1) Request one hour access at end of this store for Roser and 
   tech to inspect COT plumbing in collision hall to understand 
   modifications needed to reverse COT gas flow. 

Option A: 

* Roser decides materials and people can be assembled to 
  reverse COT gas flow after the next store. 
* Next store: continue running with Silicon off and COT 
  fully ON with nitrogen gas mix. 
* End of next store: Request access (4 hours?) to put in 
  plumbing and reverse COT gas flow. 
* Following store: Run with Silicon ON, COT fully ON, 
  gas flow reversed, and no nitrogen in mix. 
* Run in this mode until March 15 shutdown. 

Option B: 

* Roser decides COT gas flow can NOT be reversed after 
  the next store (or two at most). 
* Run for 4 stores with Silicon ON, COT fully ON with 
  nitrogen gas mix. 
* Run rest of stores until March 15 shutdown with 
  Silicon ON but COT in "compromised state" with 
  SL1-2 off, SL3-4 reduced gain and no nitrogen 
  in gas mix.

Abort Gaps back below 18 kHz

With Silicon out, I am handling abort gap losses on a 
"situational" basis. That is I expect people on shift 
to consider the trends and compare to previous stores
and decide if "beam quality" issues require a consultation
with MCR. When in doubt with Silicon out, call OPS.

I will call MCR (and run coordinator if necessary) to request 
an access at end of this store for 90 minutes to: 

* inspect COT plumbing to understand what is necessary 
  to reverse COT gas flow 
* bypass problem with BMU stack that is causing  
  runs to be marked bad for BMU 
* work on FCAL00 and FCAL01 (optional)

Salah (MCR crew chief) called to confirm a GO for access at 
end of store. 

Parameters if store terminates normally: 

* End of store studies (synch light) begin at 0600 
* Store terminates at 0800 
* CDF and D0 are granted access up to 90 minutes 
  starting at 0815 to 0830.  
* CDF sends in: 
  - Rob Roser and Tech (COT plumbing inspection) 
  - Dan Cyr and Phil Schlabach BMU work 
    (need to confirm with Dan) 
  - Koji Terashi and Mary Convery (FCAL00-01 work) 

If store terminates early: 

* call Roser to come in 
* confirm with MCR how long an access we 
  can have 
* if access time is long enough to get  
  Dan and Phil here plus 90 minutes, call 
  Dan and Phil 
* Do not call Koji/Mary 

You may wish to note that the top portion of the single-run  
RunSummary page has been reformatted in an effort to make  
the run information more readable.   I told you not to parse  
these pages to extract run information, so you should be safe. 

Also added a summary link page to Charles Plager's ConsumerPlots  
pages.  Click on "ConsumerPlots" near the top of the RunSummary  
page. 

For an example, click on the run number immediately 
below this entry.  If you have any comments or suggestions,  
feel free to send me e-mail.  (Please do not page the  
DAQ pager about this subject) 

L1 Cal EM hot triggers - source of high deadtime?

DCAS-ADMEM plot - requested by expert

• Can still read out card IDs, so +5V digital appears okay
• Pedestals and calibration fail, with "NoCalOK"

Talked to Roser and we will attempt to do this repair as well
in the morning.

Marked Bad, explanation:
Silicon is off, one sector of the BMU is off, and the last 10 minutes of this 20 hour
long run are contaminated for the PCAL by a bad ADMEM that caused the east plug EM to trigger 
every bunch crossing.
PCAL 
IMU 
SVX 
ISL 
L00 

Marked Bad, explanation:
Silicon is off, one sector of the BMU is off, and one wedge of the East PEM has been 
removed from the readout due to a bad Admem card.
PCAL 
IMU 
SVX 
ISL 
L00 

I am calling MCR and alerting crew chief (Salah) that we have 
added another task to access list and that we will definitely 
need full 90 minutes (if not a little more). 

 JJ

UPDATE ON ACCESS REQUEST FOR Wednesday morning: 
----------------------------------------------- 

Parameters if store terminates normally: 

* End of store studies (synch light) begin at 0600 
  (CDF goes to "between store HV state" except for 
   CLC during this time) 
* Store terminates at 0800 
* CDF and D0 are granted access up to 90 minutes 
  starting at 0815 to 0830. (Note added later - 
  Crew Chief Salah was informed that 90 minutes 
  would be tight now that we added admem repair.) 
* CDF sends in: 
  - Rob Roser and Tech (COT plumbing inspection) 
  - Dan Cyr and Phil Schlabach BMU work 
  - Koji Terashi and Mary Convery (FCAL00-01 work) 
  - Mark Mattson and tech to pull East toroid and access PCAL07 
    to work on admem in slot 20 

If store terminates early: 

* call OPS (JJ) LRP 314-4862 
* call Roser (399-2609) to come in 
* confirm with MCR how long an access we can have 
* call Mark Mattson ( LRP 266-8338 ) 
* if access time is long enough to get 
  Dan and Phil here plus 90 minutes, call 
  Dan (715-3704) and Phil (264-0674) 
* Do not call Koji/Mary 

Marked Bad, explanation:
Silicon off, one sector of BMU off, one crate in the PEM east is off.
PCAL 
IMU 
SVX 
ISL 
L00 

Busy shift with lots of problems during low luminosity
running. 


- Phil Schlabach attempts to fix the HV problem with a sector of the BMU. 
- Run 179314 ends due to 99% deadtime from an ADMEM card with a blown fuse.Slot 20 of b0pcal07 for
wedge 6 of the PEM east. Isolating the problem takes 1 1/4 hours. Along the way we page L2 trigger,
L1 trigger, Plug Cal and Cal electronics pagers. Finally we begin running again without the card. 

- Run for 30 minutes without the bad card. (Run 179325) 
- Run for 10 minutes w/o b0pcal07 so that Mark Mattson can test the crate and verify the problem
with the admem. (Run 179326) 

- Run for 30 minutes w/0 b0pcal07 by mistake; wanted to run w/o card. (179327) 
- Catch our mistake and begin run with b0pcal07 but w/o the bad card. (179328) 
- MCR notifies us to lower our HV between 6 and 6:30 a.m. tomorrow to avoid trips due to losses from
studies. 

Runs                   
Delivered Luminosity   421.7   
Acquired Luminosity    332.8   
Efficiency             78.9