Defining an MCA
Lynx II DSA User's Manual – 7096089 37
Note that the Gamma-Analyst and Gamma-Products selection requires an available serial
port from your PC. If the port is not available or already in use then the selection cannot
be made.
To utilize the built-in sample changer interface consisting of the RDY input and ADV
output, select the Internal Chgr. Signal polarity settings for these can be made through
Genie’s run-time adjust dialog.
Parameters Settings
This section discusses the selections within the Settings menu that apply to the Lynx II.
All selections within the Settings menu, except for Input, have no adjustable controls in
the MID editor. Settings for these devices are made through Genie’s run-time Acquisition
and Adjust dialogs.
Input Settings
The Input selection is used to change the name of the Input and set up the structure of its
memory via the Define Input dialog. Input naming within a definition must be unique, else
cannot be loaded into the run-time database.
Note: This dialog’s initial focus is the Cancel button; pressing the keyboard’s
ENTER
key after making changes in this dialog box will cancel the changes. Be sure to
click on the OK button to accept the changes.
Figure 15 Define Input Dialog
Input Name
The default DETnn name is the name displayed here, allowing you to easily change it to a
more meaningful name, such as “H2OSampl”, up to a total of eight characters.
Detector Type
Use this drop-down list to select the type of detector to be used with this MCA; this also
assigns appropriate default values to the spectrum display and analysis parameters. Five
choices are available: Gamma or X Ray - Ge, Gamma or X Ray - NaI, Gamma or X
Ray - Si, Alpha or Beta Particle - Si, or Other. For additional information please refer to
the Genie 2000 Operations Manual.
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