42 lines
1.7 KiB
Python
42 lines
1.7 KiB
Python
"""
|
|
Discrete photon energy scan (vector scan) of multiple spectral regions
|
|
"""
|
|
|
|
# scan positioner: Eph = photon energy
|
|
MOTORS = [Eph]
|
|
# comma-separated discrete list of scan positions
|
|
POSITIONS = [405.0, 410.0]
|
|
# seconds to wait between positioning command and triggering the detector
|
|
LATENCY = 0.0
|
|
|
|
# region setup
|
|
#
|
|
# for each region, define a python dictionary with the following items.
|
|
# optional items can be left unspecified and will default to the indicated values.
|
|
# for swept mode, include 'elo', 'ehi', 'estep', 'iter' values, but do not include 'efix'.
|
|
# for fixed mode, include 'efix' value, but do not include 'elo', 'ehi', 'estep', 'iter'.
|
|
#
|
|
# 'name': user-specific name of the region (for graph title and RegionName attribute in data file)
|
|
# 'elo': lower kinetic energy boundary of the spectrum
|
|
# 'ehi': upper kinetic energy boundary of the spectrum
|
|
# 'estep': energy step size
|
|
# 'efix': center kinetic energy in fixed mode
|
|
# 'epass': pass energy
|
|
# 'tstep': dwell time in seconds
|
|
# 'iter': number of iterations/sweeps (default 1)
|
|
# 'cis': True = constant initial state (photoemission line), False = constant final state (Auger peak), (default False)
|
|
# 'slit': exit slit (default current value)
|
|
|
|
REGION1 = {'name': 'Peak 1', 'elo': 243.0, 'ehi': 253.0, 'estep': 0.1, 'epass': 50, 'tstep': 0.1, 'iter': 1, 'cis': True, 'slit': 100}
|
|
REGION2 = {'name': 'Peak 2', 'elo': 214.0, 'ehi': 219.0, 'estep': 0.1, 'epass': 50, 'tstep': 0.1, 'iter': 2, 'cis': False, 'slit': 100}
|
|
|
|
# list of region dictionaries to execute at each scan position
|
|
REGIONS = [REGION1, REGION2]
|
|
|
|
# close beam shutter and turn off analyser at the end of the scan
|
|
CLOSE_SHUTTER_AT_END = False
|
|
|
|
|
|
from MultiRegion import multi_region_run
|
|
multi_region_run(MOTORS, POSITIONS, REGIONS, LATENCY, CLOSE_SHUTTER_AT_END)
|