Exit Conditions of Phase A.3:

 

Objective

Priority

O.A.3.1

 All RF diagnostics and loops commissioned at 450 GeV pilot intensity to 3x1010 p+

 1

O.A.3.2

 BPM/orbit corrector system fully commissioned

 1

.01

 Orbit flattened in injection and dumping region

 1

O.A.3.3

 Other beam instrumentation commissioned

 

.01

BCT systems fully commissioned

1

.02

Tune/chromaticity measurement systems fully commissioned

1

.03

Wire scanners fully commissioned

1

.04

  Undulator commissioned at 450 GeV  1

.05

  BSRA commissioned  1

.06

Synchrotron light monitor commissioned

2

.07

Rest gas ionisation monitor commissioned

2

.08

BLMs parasitic commissioning if occasion (beam induced quench)

1

.09

BLM commissioning with quench on purpose

2

.10

Orbit/tune/coupling feedback tested

1

.11

 Orbit/tune/coupling feedback for injection optics fully commissioned

 2

O.A.3.4

 Measurements

 

.01

Basic optics checks with multi-turn data

1

.02

First emittance measurements with wire scanners

1

.03

Longitudinal losses determined

1

.04

Longitudinal profile and bunch length measured vs. time

1

O.A.3.5

 Liftetime optimised to > 1 h

 1

O.A.3.6

 Cycling machine established

 1 

O.A.3.7

 Injection protection

 

.01

Rough setting-up of TDI, TDI in

1

O.A.3.8

 Full commissioning of beam dumping system with pilot and 3 x 1010 p+ for 450 GeV

 

.01

MKD synchronisation verified with beam

1

.02

Extraction region and dump line aperture measured

1

.03

Beam position at TDE verified/adjusted

1
.04  All BI acquisition for XPOC verified with beam  1
.05  TCDQ and TCS roughly set up  1

.06

IPOC and XPOC references adjusted

1

 

 

Notes on exit conditions:

  1. RF diagnositcs and loops

    • Transverse damper and feedback equipment tested and commissioned with beam, closing the loop etc. at earliest possible in in phase A.4

  2. Injection protection

    • The TDI is moved in to avoid D1 quenches in case of injection failures. The setting is roughly ~ 10 sigma, according to the available optics information (measured or nominal). Accuracy of setting up is not an issue. Gap: rather larger than too small.

  3. Orbit/tune/coupling feedbacks

    • Attempt to make feedbacks operational. Full commissioning not strictly required at this stage, but recommended to speed up setting up of collimators in the next phase and ramp commissioning later on.