APD

Brief Description

Scans a device over a given range to find device position at which maximum intensity is reached. If a peak is found, a fit can be done, and the zero of the scanning motor will be reset appropriately. APD command uses counts coming in to scaler or detector specified.

Full Command Path

Usage: APD [Detector],[Motor],[Range],[Step size],[Counts],[Tolerance],[Max iteration]

Positional Arguments

[Detector] specifies detector used to measure intensity at each device position.

[Motor] is an integer that specifies the motor selected for the scan.

[Range] is the device range centered at current device position.

[Step size] is the length between two adjacent device positions in the scan. The number of points in the scan will be set to [Range]/[Step size].

[Counts] specifies the number of monitor counts (if [Counts] is greater than zero) or the number of seconds (if [Counts] is less than zero) till which count is performed at every device position.

[Tolerance] specifies tolerance of the selected motor. (Optional)

[Max iteration] specifies the maximum number of iterations. (Optional)

Related Commands

Note: APD is related to the following commands:

AP, FP, FindPeak