Difference between revisions of "2n Position resolution"

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==FFT application==
 
==FFT application==
 
Experimental distribution of TDC difference time spectrum (blue) and ideal response function (red) are shown below:
 
Experimental distribution of TDC difference time spectrum (blue) and ideal response function (red) are shown below:
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[[File:experimental_data_DetG.png | 600px]]
  
 
[[File:experimental_data_fit.png | 600px]]
 
[[File:experimental_data_fit.png | 600px]]

Revision as of 16:56, 26 April 2013

FFT algorithm test

Convolution deconvolution stepFcn.png

If we take narrower response function we will get

Convolution deconvolution stepFcn2.png

FFT application

Experimental distribution of TDC difference time spectrum (blue) and ideal response function (red) are shown below:

Experimental data DetG.png

Experimental data fit.png


Hence, any coordinate of the neutron hit has the following uncertainty in: sigma = 1.5 ns and its value converted into cm is 1.5 ns x 7.24 cm/ns = 10.8 cm. The total length of the active area of the neutron detector is 75 cm.