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rt_improvement_by_post-processing [2019/02/06 13:57] vschaefer [Bunch Charge Determination] |
rt_improvement_by_post-processing [2019/02/06 16:11] (current) vschaefer [Basic Principle] |
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- | {{: | + | ===== Bunch Charge determination ===== |
- | ===== Post-Processing of RT Oscillation Data ===== | + | {{: |
- | * idea: resonant frequency ω0 and decay time constant λ, are fixed by hardware | + | [from: "A High Stability Intensity Monitoring System" |
- | * omission of inexact peak detector | + | |
- | <color #ed1c24>-> improved RT resolution by digitization of oscillation data, FFT filtering and envelope fit | + | |
- | </ | + | |
- | **Algorithm for bunch charge Determination:** | + | {{:bild_zu_basic_principle.png? |
- | * FFT filtering and offset correction | + | |
- | * identification of maxima and minima until pre-set S/N value crossed | + | |
- | * robust estimator of exponential decay curve | + | |
- | * evaluation of amplitude ~ total pulse charge | + | |
- | ===== Bunch Charge Determination ===== | + | {{: |
- | {{:: | + | <color # |
- | [from: “A High Stability Intensity Monitoring System”, M. A. Clarke-Gayther, RAL, Didcot (UK), presented on EPAC, Sitges (E) 1996] | + | ===== Post-Processing of RT Oscillation Data ===== |
- | {{::bild_zu_bunch_charge.png? | + | * idea: : resonant frequency ω0 and decay time constant λ, are fixed by hardware |
+ | * omission of inexact peak detector | ||
+ | <color # | ||
- | <color # | + | ==== Algorithm for bunch charge determination ==== |
- | {{:: | + | * FFT filtering and offset correction |
+ | * identification of maxima and minima until preset S/N value crossed | ||
+ | * robust estimator of exponential decay curve | ||
+ | * evaluation of amplitude ~ total pulse charge | ||
+ | {{: | ||