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JSPWiki v2.0.52


The scan syntax is like on TASMAD.

Arguments of SC:

  1. any driveable variable, and its center value
  2. any step (D immediately followed by the variable name)
  3. NP followed by the number of points (note: if NP is even, the scan center is between the two points in the middle).
  4. MN or TI followed by the monitor or time preset value

The presence of 4 argument parts is mandatory, but the order of the parts is not relevant. For every step variable, the corresponding center value must be given. If no step is given for a center variable, a step 0 is used.

Special cases are the variables QH and Q3 , and their corresonding steps DQH and DQ3 which have 3 or 4 values.


  • energy scan (the following two beeing equivalent))
    > SC QH 1 0 0 0 DQH 0 0 0 0.01 NP 5 MN 1000
    > SC QH 1 0 0 EN 0 DEN 0.01 NP 5 MN 1000

  • q scan (the following two beeing equivalent))
    > SC QH 1 0 0 0 DQH 0 0.01 0 0 NP 5 MN 1000
    > SC QH 1 0 0 0 DQH 0 0.01 0 NP 5 MN 1000

  • motor scan with time preset
    > SC A3 25 A4 50 DA3 0.1 DA4 0.2 NP 11 ti 1


The new UB matrix system allows to drive Q out of plane within the limits of the sample goniometers sgu and sgl. If there is a sample environment device on the sample table which may not be tilted, please restrict the movement of motors sgu and sgl through software limits.

Polarised scans

> POLSCAN script "scan variables and steps" NP np MN mn

The script contains all what has to be done at one scan point. Its exact syntax is still open.

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This page last changed on 17-Oct-2005 14:28:39 CEST by