8
Note: If a saved spectrum is loaded to “live,” any spectrum currently displayed will be lost without warning unless
you explicitly save it before loading the saved spectrum. Note: When a background is loaded, it will automatically be
subtracted from the visual spectrum display until cleared or de-selected from the View menu. A loaded background
spectrum will be subtracted from all subsequent analyses until the background spectrum is explicitly cleared, another
one is loaded, or URSA-II MCA is closed.
The “Clear Background” menu item completely removes any loaded background file, not just from the visual display
(e.g., the background data also will not be used in subsequent analysis of spectra).
The next three menu items relate to the printing of spectra currently displayed. “Printer Setup…” accesses the
Windows™ printer settings dialog to alter paper type and layout, quality of the printing, etc. “Print Spectrum Preview
(color)…” allows the user to view the printer output prior to printing, adjust margins, etc. before printing the chart.
“Print Spectrum Preview (B+W)…” does the same, but alters the displayed colors to a black spectrum on a white
background in order to save printer ink. This is the recommended method of printing charts.
The final menu item, “Exit,” closes URSA-II MCA. Warnings will occur if the currently displayed spectrum has not been
saved, and the user must confirm that the program should close.
Utility Menu
The first four menu items (“Start (or Restart) Acquisition,” “Stop Acquisition,” “Clear Spectrum,” and “Clear Spectrum
and Start New Acquisition”) are for beginning, continuing, and stopping spectrum acquisition as well as clearing
the currently displayed live spectrum. These items are identical in function to the four buttons along the top of the
Acquisition Controls and Indicators portion of the screen. Note: No warnings are given if the current spectrum has not
been saved!
“Detector Status…” displays a small window displaying current information about the detector being used, loaded ROI
and library files, and the state of energy and efficiency calibrations. The “Detector…” menu item opens a submenu
containing items that allow new detectors to be added, edited, or deleted,or for the detector being used by URSA-II to
be changed without closing URSA-II MCA. A menu item (“Disable High Voltage”) is also present for enabling/disabling
Button Bar
Hardware Status Bar
New User Hints Bar
Spectrum Display
Spectrum Status Bar
Aquisition
Controls and
Indicators
Spectrum
Smoothing
Button
Panel
Menu Bar
