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Contents
Contents
SLS Detectors
Frequently Asked Questions
Anna Bergamaschi
Date:
August 24, 2018
Contents
SLS Detectors Software
Which programs can I use to control my detector?
How can I control many detectors in parallel or independently?
Examples
How can I configure the data receiver?
What are settings and calibration files for?
MYTHEN
GOTTHARD
How should a configuration file look like?
What is the meaning of the file name?
Which is the sequence of the acquisition flow?
How can I synchronize my detector with the experiment?
How can several controllers be synchronized?
How can the detector movement and position and I0 readout be customized for my beamline?
In which data format are written the data?
GOTTHARD
EIGER
JUNGFRAU
General questions about detectors
In which X-ray energy range can I use the detector?
Sensors
Frontend electronics
What limits the maximum frame rate?
Single photon counting detectors
Which detector settings should I choose?
MYTHEN
How do I chose the comparator threshold?
How does the flat field correction work?
Why isn't my flat-field flat?
Dynamic acquisition of the flat field
What happens when I trim the detector?
MYTHEN
In what consists the energy calibration of the detector?
MYTHEN
Why should I change the dynamic range of the counters?
When should I enable rate correction
How can I choose the dead time?
Charge Integrating detectors
(Dynamic) Gain Switching
Pedestals
Energy calibration
Data processing
Angular conversion
How is the channel number coverted into angle?
How are different positions merged together?
Introduction
Notation
Observables
Basic binning
Special nasty cases
Advanced binning
Poisson and normal statistics for diffraction
Average vs. weighted average
Simple average
Zero-skipping average
Weighted average: definition and relationship with
Straight Poisson (zero-skipping) weighted average
Mighell-Poisson weighted average
Comparison
Analytical comparison of averages
Numerical comparison of averages
Scaling Poisson variates
Bibliography
Why can't I properly merge different positions?
About this document ...
Thattil Dhanya 2018-08-24
