BNC SAM 950 - Page 24

SAM 950 Berkeley Nucleonics Corporation 24 of 62
Figure 4.10. Background & Calibration screen information
1
Information
Date/Time, Acq. Time and count rate information
2
Counts
Y-axis unit display (counts in self-adjusting & logarithmic scale)
3
Spectrum
Real time spectrum display
4
Ch/Energy
X-axis unit display (channel or energy in linear scale)
Background measurement is important for accurate nuclide identification. Ensure that no radiation
sources are in the vicinity of the SAM 950 during the background measurement.
In calibration mode, place a Cs-137 source front the SAM 950. When the slected number of counts
have been acquired, the screen will display “Success”. Remove the Cs-137 source when calibration is
completed. The x-axis unit change from channel number to energy in keV.