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ar345 Program Manual 1 2
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N
ote: Timing is a crucial issue when operating the scanner. If the computer is very bus
y
doing other computations, the internal clock of the program will work slower. A good check fo
r
excessive computer activity is if the X−windows server is not able to repaint the user interac
e
at a reasonable speed.
3
.4 Scanner Command Area
The buttons in the command area can be used to send commands directly to the scanner o
r
to pop up further windows, i.e. the mar345−Scan and mar345−Change Paramete
rs
windows. The functions of the individual buttons are:
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B
utton Description
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C
ollect Changes layout of the button choices, i.e. the Collect Menu buttons are
displayed.
S
can Pops up the mar345−Scan window.
E
rase Immediately starts to erase the imaging plate. Erasing is identical to doing
a scan, but no data are taken.
I
nitialize The scanner will move to its distance reference position (usually at the far en
d
of the translation stage). This distance initialization may have to be done if th
e
scanner looses the information about the distance for some reasons. The re−
ference positions are taken from the configuration file. The detector move−
ment has to be confirmed.
The configuration file will be reread when pressing this button.
O
pen Shutter Opens (or closes) the local X−ray beam shutter.
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And in the Collect Menu there are:
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S
ingle Set Pops up the mar345−Change Parameters window for programming
a single data set.
M
ultiple Sets Pops up the mar345−Change Parameters window for programming
up to 64 data sets.
I
ndex Crystal Pops up the mar345−Change Parameters window for programming
a small number of images to be used for indexing a crystal.
M
AD Data Pops up the mar345−Change Parameters window for programming
a data collection typical for anomalous and/or MAD data.
C
ancel Returns to the original layout.
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