miércoles, 3 de diciembre de 2008

THE LHC Operation 4 dec 2008. 00:38hs.





Stage A

Pilot physics run: physics aim 43 x 43 bunches; maximum 156 x 156 bunches.

Stage B

Intermediate physics run: physics aim 75 ns bunch spacing; possible initial physics aim 96 x 96 bunches (bunch intensity 1 x 1010), maximum aim 936 x 936 bunches (maximum 9 x 1010).

Phase B.1

Injection of 75 ns train:  ...

Phase B.2

System commissioning:  RF, BI ...

Phase B.3

Commission reduced crossing angle:  ...
Phase B.4Full 75 ns injection scheme(234 334 334 334) ...
Phase B.5Ramp 75 ns train: ...
Phase B.6Squeeze 75 ns train
Phase B.7Collide 75 ns train
Phase B.8Increase intensity: 936 bunches with 4 x 1010
Phase B.9Luminosity production with 75 ns

Phase A.1

First turn:  injection commissioning; threading, commissioning beam instrumentation. Ring 1, ring 2.

Phase A.2

Circulating pilot:  establish circulating beam, closed orbit, tunes, RF capture, ...

Phase A.3

450 GeV initial commissioning:  system commissioning: instrumentation, beam dump,...
Phase A.4450 GeV optics: beta beating, dispersion, coupling, non-linear field quality, aperture,...
Phase A.5450 GeV, increasing intensityprepare the LHC for unsafe beam
Phase A.6450 GeV, two beam operation
Phase A.7450 GeV, collisions
Phase A.8Snap-back and ramp: single beam/two beams
Phase A.9Top energy checks
Phase A.10Top energy, collisions
Phase A.11Squeeze: Commission the betatron squeeze in all IP's
Phase A.12Beam commissioning with experimental magnets



adolfocanals@educ.ar

No hay comentarios: