biodex ATOMLAB 500, Operation And Service Manual, Page: 107 / 212

Automated Decay Test
Figure 6.58. The Automated Decay Test Screen.
The Automated Decay Test allows the user to set the number of counting points and the
interval for each count that will be automatically taken. Once started, the Automated Decay
Test will take readings without intervention. The Automated Decay Test can be paused to
use the dose calibrator for measuring functions and still return to the Automated Decay
Testing operation.
The user can perform the automated decay linearity test taking readings by hours or half-life
for the isotopes to be used. The user can select the calculation method using a normalized
reading or an averaging method for the calculation. These choices are made as part of setting
the test parameters prior to starting the linearity test. There is a <Setup Options> button that
is part of the setting test parameters. The user can set the activity below which the test is to
end. The system defaults to 10
µ C
i.
To Perform An Automated Decay Test:
1.
From the Linearity Testing menu, select <Automated Decay Test>. The Automated
Decay Test screen is displayed (see Figure 6.58).
2.
Select <Set Test Parameters>. The Automated Decay Test screen is displayed.
Figure 6.59. Automated Decay Test Parameters Screen.
From this screen, the user can perform the test using any of several methods
including:
•
Normalized reading by hours: allows the user to set the reading interval at a set