Entry Conditions for Phase A.7:

Machine setup: Injection optics, pilot intensity, good beam lifetime, un-squeeze optics, necessary machine protection functionality.

 

Entry condition

E.A.7.1

 Machine protection for 450 GeV

 E.A.7.2

 2 beams operation (phase A.6)

 E.A.7.3

 Good Vacuum for low background

 E.A.7.4

 Collimators at injection settings

E.A.7.5

 Power circuits

.01

Correctors should be available and calibrated; bumps should be commissioned

.02

Octupoles OFF

 E.A.7.6

 High level controls

.01

Separation scan application debugged and available

.02

Online FiDeL magnetic model available via LSA for the correctors participating in the bumps

.03

Online display of the beam parameters: current, lifetime, tune, chromaticity, orbit, etc.

.04

Online display of BLMs

.05

 Off-line preparation of bumps or, alternatively, possibility to do dynamic bump calculation

 E.A.7.7

 BI

.01

 BPM commissioned and good calibration

.02

BLMs commissioned and calibrated

.03

BCT commissioned and calibrated

.04

 Wire scanners commissioned

.05

 Extrapolation of BPM readings to IP available

.06

 Signals from scintillators installed in IP1 and IP5

 E.A.7.8

 Beam parameters under control

.01

Good beam lifetime (about 1 hour)

.02

Orbit

.03

Tune (injection tune) and tune coupling

.04

Chromaticity

 E.A.7.9

 Communication with experiments

.01

DIP operational [2]

.02

Regular scheduled meetings

.03

TV-screen status page (pages 1)

 E.A.7.10

 Beams should be synchronized [note 1]

 

 

 


 

Notes on entry conditions

 

1. Beams should be synchronized: ΔT < 1ns at IR between beams 1 and 2, based on the BPMs.