39 lines
1.0 KiB
Python
39 lines
1.0 KiB
Python
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# -*- coding: iso-8859-1 -*-
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def experiment(): # 'go setup' routine
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pars = {}
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pars['P90'] = 2.5e-6 # 90-degree pulse length (s)
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pars['RD'] = 1 # delay between scans (s)
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pars['SW'] = 100e3 # spectrum window (Hz)
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pars['SI'] = 1*1024 # number of acquisition points
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pars['DEAD1'] = 10e-6 # receiver dead time (s)
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while True:
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yield gs_experiment(pars)
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def gs_experiment(pars):
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e=Experiment()
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# read in variables:
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P90 = pars['P90']
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RD = pars['RD']
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SI = pars['SI']
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SW = pars['SW']
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DEAD1 = pars['DEAD1']
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if P90 > 20e-6:
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raise Exception("Pulse too long!!!")
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e.ttl_pulse(2e-6, value=1) # unblank RF amplifier
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e.ttl_pulse(P90, value=3) # apply 90-degree pulse
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e.wait(DEAD1) # wait for receiver dead time
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e.record(SI, SW, sensitivity=2) # acquire signal
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e.wait(RD) # wait for next scan
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# write experiment parameters:
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for key in pars.keys():
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e.set_description(key, pars[key])
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return e
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