IDL cheat sheet

Version 6.1 by moosmanj on 2018/05/28 16:16
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This is an overview of the most commonly used commands during a beamtime.

Sample positioning

IDL command

description

motion

s_stage_x/z

move rotation stage in x/z-direction

relative [ mm ]

s_pos_x/y/z

move sample stage in x/y/z-direction

relative [ mm ]

s_rot, 90

rotate rotation stage to 90 degrees

absolute [ deg ]

Detector positioning

IDL comman

description

motion

pressure_on

enable detector y movement


o_ccd_dist, 5

move detector in y direction

relative [ mm ]

pressure_off

disable detector movement


Monochromator positioning

IDL command

description

motion

calc_dcm_energy, 10000, /set

set DCM and undulator to 10 keV


dcm_pitch, 0.00001

move 2nd crystal pitch by 0.00001 deg

relative [ deg ]

goto_dcm_pitch,  -0.03976

move 2nd crystal pitch to -0.03976 deg

absolute [ deg ]

reflex_opt

move 2nd crystal pitch to optimal flux position