
LS 6000 Scintillation System User’s Manual
PN 247971-F
6-5
Isotope/DPM Libraries
The Isotope Library
6
1. With the New Isotope Setup Menu displayed and “Scintillator” highlighted, choose
Liquid or Xtal to specify the portion of the Isotope Library you wish to store the window
settings.
2. Highlight “Select Another Isotope” and press SELECT. The menu shown in Figure 6.3 is
displayed.
3. With “Isotope Name” highlighted, enter the isotope name you wish to add. Type in the
chemical symbol of the isotope, or up to five characters (letters, numbers, or symbols)
and press ENTER. This name must not match the name of a previously stored isotope in
the same part of the library.
4. Highlight “Half Life” and enter the appropriate half-life of the isotope in years or days
and press ENTER. Half-life data for many of the common isotopes are provided in
Appendix D.
NOTE A half-life must be stored in the Isotope Library for the system to make half-life corrections.
5. Highlight “Standard DPM” and enter the dpm of the standard used for Automatic
Window Setup if H# Plus is installed on your instrument and the dpm is known. When
the dpm value is given, window settings for higher quenched samples can be obtained.
This value is not required for Automatic Setup and is not available for Xtal window
settings.
If Standard DPM is entered, highlight “Standard Date” and enter the date of
standardization in this format: dd mmm yyyy hr:min (2 digits for the day, a 3 letter code
for the month, 4 digits for the year, and the time, if desired, based on a 24 hour clock.
6. If you want to have the instrument determine the window settings, highlight “Automatic
Window Setup”, and press SELECT. The New Isotope Setup Menu is displayed.
Comentarios a estos manuales