13.3 Generation of intensity windows

Intensity windows are time window files defined according to the count rate level of a time profile (or more generally the intensity level of an HK time profile) being in a given range. This range can be specified interactively in a number of ways.

Graphically

iwindow [wfile CURSOR Above
iwindow [wfile CURSOR Below
iwindow [wfile CURSOR Inside
iwindow [wfile CURSOR Outside

Based on a named time profile

iwindow [wfile tfile Above y1
iwindow [wfile tfile Below y1
iwindow [wfile tfile Inside y1 y2
iwindow [wfile tfile Outside y1 y2

The main difference is that the value y1 above or below which is defined the acceptance, or the couple of values y1 y2 inside or outside whose range is defined the acceptance, are specified

in the first case clicking the mouse respectively once or twice on the graphical representation of a time profile present on a graphical window
in the second case entering manually the values and the name of the time profile to which they refer

Note that if there are gaps in the time profile, and if a good time window is open before the gap, this will normally span over (enclose) the gap. If it is desired to exclude the gaps from good time windows, the environment variable includegap can be used.

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sax.iasf-milano.inaf.it/Xashelp/twindow.3.html :: original creation 2002 Sep 04 17:49:13 CEST :: last edit 2002 Sep 04 17:49:13 CEST