2011 - Progress
Date
Bunches/beam
Colliding bunches
(Atlas & CMS)
Luminosity cm
-2
s
-1
5th November
Switch to ions (fully stripped lead)
26th October
1380
1331
3.65e33
13th September
1380
1318
3.3e33
7th August
1380
1318
2.1e33
28th June
1380
1318
1.25e33
24th June
1236
1180
1.26e33
29th May
1092
1042
1.26e33
23rd May
912
874
1.1e33
1st May
768
700
8.4e32
27th April
624
598
6.7e32
21st April
480
424
4.67e32
16th April
336
322
3.57e32
14th April
220
214
2.28e32
24-27th March
1.38 TeV run (followed by technical stop and scrubbing)
22nd March
200
194
2.5e32
13th March: First stable beams, 3 bunches per beam, initial luminosity 1.6e30 cm
-2
s
-1
5th March: nominal bunches at 3.5 TeV, start collimator set-up program
3rd March: first collisions at 3.5 TeV, beta*=1.5 m. with pilot beams
19th February: First beam, circulating beams established.