Difference: AtfBpmProgram (1 vs. 7)

Revision 716 Apr 2012 - webmanip_5fw2sw_2esh

Line: 34 to 34
 

First pulse operation (still useful test for ILC)

Changed:
<
<
This is still useful as in a large system (ILC, FEL) the BPMs cannot all be calibrated using a mover system. This would be the first test towards an ab-initio system, combined with careful gain/loss measurements would represent a test of the techniques that would have to be used at the ILC.
>
>
This is still useful as in a large system (ILC, FEL) the BPMs cannot all be calibrated using a mover system. This would be the first test towards an ab-initio system, combined with careful gain/loss measurements would represent a test of the techniques that would have to be used at the ILC.
 

  1. Measure precisely phase of each signal cable

Revision 607 Jan 2009 - StewartBoogert

Line: 1 to 1
 
META TOPICPARENT name="BeamPosition"

Cavity BPM systems work

Line: 18 to 17
 
  1. Electronics gain (weekend measurement)
  2. Calibration tone (continuous measurement)
  3. Electronics noise figure (best possible resolution)
Changed:
<
<
  1. Cavity coupling factor
>
>
  1. Cavity coupling factor (x-y cross coupling)
 

Online measurements and tests

Changed:
<
<
  1. Individual BPM calibrations
>
>
  1. Individual BPM calibrations (mover)
  2. Orbit bump calibrations (non-mover BPMs)
 
  1. Dynamic range, coupling strength (requires electronics gain), linearity
  2. Cross coupling (x-y)
  3. Resolution (simple, jitter removed)
Changed:
<
<
  1. Tone calibration system
>
>
  1. Tone calibration system (constantly updated gain measurements)
 
  1. Temperature monitoring system
Added:
>
>
  1. Long term position drift measurements
  2. Multi-bunch operation
  3. Use in "slow" feedback operation
  4. Electrical centre drifts/stability
 

First pulse operation (still useful test for ILC)

Added:
>
>
This is still useful as in a large system (ILC, FEL) the BPMs cannot all be calibrated using a mover system. This would be the first test towards an ab-initio system, combined with careful gain/loss measurements would represent a test of the techniques that would have to be used at the ILC.
 
  1. Measure precisely phase of each signal cable
  2. Local oscillator phase
  3. Phase difference for each BPM due to beam propagation
\ No newline at end of file
Added:
>
>
<--

Settings just to customise this page

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Revision 523 Dec 2008 - StewartBoogert

Line: 1 to 1
 
META TOPICPARENT name="BeamPosition"

Cavity BPM systems work

Line: 17 to 17
 
  1. Electronics gain (weekend measurement)
  2. Calibration tone (continuous measurement)
Changed:
<
<
>
>
  1. Electronics noise figure (best possible resolution)
  2. Cavity coupling factor
 

Online measurements and tests

  1. Individual BPM calibrations

Revision 421 Dec 2008 - StewartBoogert

Line: 1 to 1
 
META TOPICPARENT name="BeamPosition"

Cavity BPM systems work

Added:
>
>
Aim to provide long term stable BPM system operating at the best possible resolution.
 
  • Hardware measurements (related to BPM design, systematics etc)
Changed:
<
<
  • Operations
>
>
  • Operations (beam based measurements)
  • First pulse operation
 

Hardware measurements

Line: 19 to 26
 
  1. Resolution (simple, jitter removed)
  2. Tone calibration system
  3. Temperature monitoring system
Added:
>
>

First pulse operation (still useful test for ILC)

  1. Measure precisely phase of each signal cable
  2. Local oscillator phase
  3. Phase difference for each BPM due to beam propagation

Revision 318 Dec 2008 - StewartBoogert

Line: 1 to 1
 
META TOPICPARENT name="BeamPosition"

Cavity BPM systems work

Line: 15 to 15
 

Online measurements and tests

  1. Individual BPM calibrations
  2. Dynamic range, coupling strength (requires electronics gain), linearity
Added:
>
>
  1. Cross coupling (x-y)
 
  1. Resolution (simple, jitter removed)
  2. Tone calibration system
  3. Temperature monitoring system
\ No newline at end of file

Revision 218 Dec 2008 - StewartBoogert

Line: 1 to 1
 
META TOPICPARENT name="BeamPosition"
Deleted:
<
<
 

Cavity BPM systems work

  • Hardware measurements (related to BPM design, systematics etc)
Line: 17 to 16
 
  1. Individual BPM calibrations
  2. Dynamic range, coupling strength (requires electronics gain), linearity
  3. Resolution (simple, jitter removed)
Changed:
<
<
>
>
  1. Tone calibration system
  2. Temperature monitoring system
 \ No newline at end of file

Revision 118 Dec 2008 - StewartBoogert

Line: 1 to 1
Added:
>
>
META TOPICPARENT name="BeamPosition"

Cavity BPM systems work

  • Hardware measurements (related to BPM design, systematics etc)
  • Operations

Hardware measurements

  1. Electronics gain (weekend measurement)
  2. Calibration tone (continuous measurement)

Online measurements and tests

  1. Individual BPM calibrations
  2. Dynamic range, coupling strength (requires electronics gain), linearity
  3. Resolution (simple, jitter removed)
 
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