Ludlum Measurements 334A, Руководство по эксплуатации

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Model 334A Operations Manual
Ludlum Measurements, Inc 11 January 2021
Set Source Parameters
For the alpha calibrations, the source type and activity must first be entered in the Calibration
Isotope Parameters dialog by tapping Calibrate—Set Alpha Source… Entering the calibration
isotope parameters separately enables the user to use a source isotope for the Automatic and
Advanced Alpha Calibration and for the Response Check. Enter parameters and tap ok.
Calibration Instructions
Alpha Energy Calibration
To begin the alpha energy calibration, tap Calibrate—Advanced—Alpha Energy… on the menu.
The Alpha Energy Calibration dialog will be displayed showing the alpha energy calibration
settings and a window where the spectrum will appear with several red lines.
The horizontal axis represents the possible energies, assigned to channels 0 to 255. The
vertical scale accumulates counts in each channel and adjusts automatically to display the
highest peak.
Several vertical red lines are scattered along the alpha spectrum. The number of lines
depends on the operating configuration of the Model 334A. These lines indicate the
position of the alpha peaks, and can be adjusted by dragging to match up with the peak
location. The numbers at the top of each red line correspond to the channel number of the
peak location.