Content:

Using ADXV to define untrusted regions

First start ADXV to look at the image, eg. with 

% adxv J11C05b3_12_001.img

This will show the control panel

adxv_01.png

and the full image:

adxv_02.png

Since we're going to be interested in the beamstop, we can zoom in by selecting the "100%" button:

adxv_03.pngadxv_04.png

which will show the center of the image enlarged (note: you can use the middle mouse button to pan the image):

adxv_05.png

Now we need to find the minimum and maximum values in the X and Y direction to describe the enclosing rectangle for an elliptical beamstop mask:

Direction Minimum Maximum
X adxv_06.png adxv_07.png
Y adxv_08.png adxv_09.png

This gives us the values for the XDS keyword UNTRUSTED_ELLIPSE. We set this in autoPROC using 

% process autoPROC_XdsKeyword_UNTRUSTED_ELLIPSE="1452 1616 1443 1623" ...