def _run(self):
"""Acquire data."""
try: # try to run the acquisition from start_up to shut_down
self.state = 'run'
self.apply_parameters()
ha.PulseGenerator().Night()
ha.Microwave().setOutput(self.mwA_power, self.mwA_frequency)
ha.MicrowaveD().setOutput(self.mwB_power, self.mwB_frequency)
tagger = ha.TimeTagger.Pulsed(self.n_bins,
int(np.round(self.bin_width * 1000)),
1, 0, 2, 3)
tagger.setMaxCounts(self.sweeps_per_point)
ha.PulseGenerator().Sequence(self.sequence)
ha.RFSource().setMode()
while True:
if self.thread.stop_request.isSet():
break
t_start = time.time()
for i, fi in enumerate(self.frequencies):
# ESR:
#ha.Microwave().setOutput(self.mw_power,fi)
ha.RFSource().setOutput(self.rf_power, fi)
tagger.clear()
while not tagger.ready():
time.sleep(1.1 * self.seconds_per_point)
self.count_data[i, :] += tagger.getData()[0]
self.trait_property_changed('count_data', self.count_data)
self.run_time += time.time() - t_start
del tagger
ha.PulseGenerator().Light()
ha.Microwave().setOutput(None, self.mwA_frequency)
ha.MicrowaveD().setOutput(None, self.mwB_frequency)
ha.RFSource().setOutput(None, self.rf_begin)
finally: # if anything fails, recover
self.state = 'idle'
ha.PulseGenerator().Light()
def shut_down(self):
ha.PulseGenerator().Light()
ha.Microwave().setOutput(None, self.mw_frequency)
ha.RFSource().setOutput(None, self.rf_frequency)
def start_up(self):
ha.PulseGenerator().Night()
ha.Microwave().setOutput(self.mw_power, self.mw_frequency)
ha.RFSource().setOutput(self.rf_power, self.rf_frequency)
ha.RFSource().setMode()