Arnd Meyer (RWTH Aachen) Jan 23, 2004 Page 1

Data Taking Jan 16 – 23

Store # Begin Lum [cm-2s-1] Duration

3175 Fri Jan 16 16:23 4.5E31 24.6 hrs

3177 Sat Jan 17 23:01 4.7E31 22.0 hrs

3179 Mon Jan 19 4:36 4.9E31 27.4 hrs (– re-scrape)

3182 quench during scraping (4.9E31)

3183 Wed Jan 21 2:58 3.5E31 23.1 hrs (extra init. scrape)

3185 Thu Jan 22 4:55 4.1E31 26.1 hrs

Arnd Meyer (RWTH Aachen) Jan 23, 2004 Page 2

Data Taking Jan 16 – 23

Day ∫L dt (del) ∫L dt (rec) Efficiency

Fri Jan 16 1373nb-1 1224nb-1 89.1%

Sat Jan 17 1238nb-1 1064nb-1 86.0%

Sun Jan 18 1802nb-1 1475nb-1 81.9%

Mon Jan 19 ???nb-1 ???nb-1 8???%

Tue Jan 20 ???nb-1 ???nb-1 8???%

Wed Jan 21 ???nb-1 ???nb-1 7??%

Thu Jan 22 ???nb-1 ???nb-1 8???%

This week ?????nb-1 ?????nb-1 8???%

Best week 10947nb-1 9394nb-1 85.8%

(Jan 2-8 2004)

Low data taking efficiency –

good that luminosity reports are not yet there!

Arnd Meyer (RWTH Aachen) Jan 23, 2004 Page 3

Store 3175 (Fri/Sat)

Initial Lum. 4.5⋅1031cm-2s-1

Muon crate x35 (problems with r/o client), SBC-L3: farm nodes+ HDI trip (pulsers?) unplugged(37min) (31min)

Access after store (CTT)

Arnd Meyer (RWTH Aachen) Jan 23, 2004 Page 4

Store 3177 (Sat/Sun)

Initial Lum. 4.7⋅1031cm-2s-1

Pixel PS B=0 run (alignment)(≃120min+bad muon data) (160min)

Access after store (Pixel+CFT)

Arnd Meyer (RWTH Aachen) Jan 23, 2004 Page 5

Store 3179 (Mon/Tue)

Initial Lum. 4.9⋅1031cm-2s-1

SBC x19 hard reset New Luminosity Re-scraping(21min)

Access after store (PDT)

Arnd Meyer (RWTH Aachen) Jan 23, 2004 Page 6

Store 3183 (Wed/Thu)

Initial Lum. 3.5⋅1031cm-2s-1

(Post-quench store)

SMT east cathedral L2CAL (?) Hot cell (?) Crate x10 VRBCracks trip (53min) (41min) (21min)(35min)

Arnd Meyer (RWTH Aachen) Jan 23, 2004 Page 7

Store 3185 (Thu/Fri)

Initial Lum. 4.1⋅1031cm-2s-1

M200 trip x10 CTT(59min) (20min) (≃162min)

(>1/2 hour before expert paged?)

Now:attempting first shot from Recycler

Arnd Meyer (RWTH Aachen) Jan 23, 2004 Page 8

Agenda

DD / AM News

Russ Mechanical

Stu Online

Michiel / Elliot GM

Andrew / Mike S.FPD Stefan / BrigitteCTT

Fritz / Geoff Controls Pierre CAL

Miroslav L2 Al Ito Central Muon

Gordon / Doug L3 Dmitri Forward Muon

Michael / Sergey SMT Jeff L1Muon

Bill L. / Lars STT

Fred / Drew / Abid CFT / PS