Difference between revisions of "FC Analysis"

From New IAC Wiki
Jump to navigation Jump to search
Line 1: Line 1:
 
[http://wiki.iac.isu.edu/index.php/PhotoFission_with_Polarized_Photons_from_HRRL Go Back]
 
[http://wiki.iac.isu.edu/index.php/PhotoFission_with_Polarized_Photons_from_HRRL Go Back]
  
FC analysis using  
+
=FC analysis using ADC channel current distribution=
  
  
Line 10: Line 10:
  
  
FC analysis using pulse by pulse ADC channel mean value distribution
+
=FC analysis using pulse by pulse ADC channel mean value distribution=
  
 
For each beam pulse:
 
For each beam pulse:

Revision as of 02:48, 5 April 2010

Go Back

FC analysis using ADC channel current distribution

FC analysis using pulse by pulse ADC channel mean value distribution

For each beam pulse:

[math] ADC_{avg}^{pulse}=\frac{\sum_{i=1}^{16}{ADC_{i}*i}}{\sum_{i=1}^{16}{ADC_{i}}};[/math]

For distribution over all beam pulses:

[math] ADC_{ave}=\frac{\sum_{i=1}^{pulses}{ADC_{avg}^{pulse}}}{pulses};[/math]
[math] ADC_{sigma}={ \sqrt{\frac{1}{pulses}\sum_{i=1}^{pulses}{\left(ADC_{avg}^{pulse} - ADC_{avg}\right)^{2}}}};[/math]

Here is:
1. ADC# = bridge#
2. Pulse# = ReadOut# = Entry# = Event#

FC data 23.png

FC plot 2 4.png



Some examples of ADC mean value distribution. Here are:
1. x axis: ADC mean value for one pulse
2. y axis: number of pulse w/ that ADC mean value
1477 1.png1473 1.png
1461 1.png1465 1.png

Below is the plot of the charge in Faraday cup (pC) as a function of magnet current (vertical axis, A) (basically magnetic field) and ADC (horizontal axis).

Far.jpg

Go Up