36 | Quality Assurance | KermaX-plus
®
Chamber
IMPORTANT NOTICE
AIR DENSITY CORRECTION
Due to variable reference sensors, air density correction for the chamber and / or
the reference detector may be indicated for best accurateness (section 7 Air
Density Correction).
IMPORTANT NOTICE
DEVIATIONS TO EXPECTED MEASUREMENTS
If you observe significant deviations from the expected results please verify that no
additional absorption is located in the beam (e.g. table top, additional filters). In
addition please verify that the DAP calibration of the KermaX-plus
®
is set
according to your system design.
CAUTION
DATA EVALUATION RESPONSIBILITY
If the KermaX-plus
®
is integrated into a system and used for data collection of
Dose Area Product (DAP), the manufacturer carries the full and entire
responsibility to critically evaluate the results of each measurement.
6.6. Test Value Adjustment
Following Recalibration the test value will change due to the new electrometer sensitivity.
The test value can be adjusted to the default value 1000 (see Chap. 6.1.2 Test Value discussion). This is
carried out via software routines within appropriate counter interface or with the aid of the 120-100-001
calibration tool by simultaneous holding the CAL UP and CAL DOWN line active for a prolonged 12
second period.
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