Add option to suppress ringing in Saturation Recovery script
A parameter option "suppress_ringing" has been added to the Saturation Recovery script. This option modifies phase lists and allows the application of a phase cycle that compensates for ringing but reduces signal-to-noise ratio by half. This gives users the option to prioritize either reduced ringing or higher SNR as per their requirements.
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@ -25,8 +25,9 @@ def experiment(): # saturation-recovery with soild-echo detection
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pars['D2'] = 1e-4 # end interval in saturation sequence (s)
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pars['DATADIR'] = '/home/fprak/Students/' # data directory
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pars['OUTFILE'] = None # output file name
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pars["suppress_ringing"] = False # 16 Phase cycle, reduces ringing but halves SNR
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# specify a variable parameter (optional):
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# specify a variable parameter (optional):
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pars['VAR_PAR'] = 'TAU' # variable parameter name (a string)
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start = 1e-4 # starting value
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stop = 1e-0 # end value
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@ -109,11 +110,17 @@ def satrec2_experiment(pars, run):
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pars['PROG'] = 'satrec2_experiment'
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# phase lists:
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pars['PH1'] = [ 0] # saturation pulses
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pars['PH3'] = [ 0, 180, 0, 180, 90, 270, 90, 270] # 1st 90-degree pulse
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pars['PH4'] = [90, 90, 270, 270, 0, 0, 180, 180] # 2nd 90-degree pulse
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pars['PH2'] = [ 0, 180, 0, 180, 90, 270, 90, 270] # receiver
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if pars["suppress_ringing"]:
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# phase cycle to compensate ringing (loss of half the signal!)
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pars['PH3'] = [ 0, 0, 0, 0, 90, 90, 90, 90, 180, 180, 180, 180, 270, 270, 270, 270] # 1st 90-degree pulse
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pars['PH4'] = [ 0, 90, 180, 270, 90, 180, 270, 0, 180, 270, 0, 90, 270, 0, 90, 180] # 2nd 90-degree pulse
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pars['PH2'] = [ 180, 0, 180, 0, 270, 90, 270, 90, 0, 180, 0, 180, 90, 270, 90, 270] # receiver
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else:
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# simple phase cycle:
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pars['PH1'] = [0] # saturation pulses
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pars['PH3'] = [0, 180, 0, 180, 90, 270, 90, 270] # 1st 90-degree pulse
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pars['PH4'] = [90, 90, 270, 270, 0, 0, 180, 180] # 2nd 90-degree pulse
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pars['PH2'] = [0, 180, 0, 180, 90, 270, 90, 270] # receiver
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# read in variables:
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P90 = pars['P90']
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