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Chapter 15 Menus and Dialog Boxes 331
Processes tab page
Thresholding
Allows a threshold test to be performed on data as it is acquired. The threshold test is
performed after background subtraction and flatfield correction but before software
accumulation. Data that falls within the threshold range returns a
1
, data that falls below
the minimum threshold or above the maximum returns a
0
. In an experiment containing
n
accumulations, only one data set is stored, but with the data added from each
accumulation. Thus, if a given bit contained data within the threshold range on 7 of 10
iterations, the value of the bit in the acquired data set would be
7
. The minimum and
maximum levels can be independently set and checkboxes allow the minimum and
maximum threshold functions to be independently toggled on or off.
On-Line Thresholding:
When this box is checked, on-line thresholding is enabled.
Setup:
This button opens the On-Line Threshold Setup dialog box, described on
page 301.
Photon Estimation
Photon Estimation, although it may be present the Processes tab page, is not
functional in early releases of the software!
Figure 289.
Processes tab
page.