S1 TITAN, T
RACER
5, and CTX User Manual
030.0112.04.0
30 of 67
2.3.
Radiation Profile – CTX
Testing
conditions
Testing conditions for the CTX were the same as for the S1 TITAN as described in
Radiation
Profile – S1 TITAN
starting on page 21.
Differences
between
instruments
The CTX uses the same mix of tubes and detectors used in The S1 TITAN and the open beam
profile is the same. The angle of the X-ray beam is still 45 degrees, but is pointed toward the back
of the CTX, at the lid when open.
Due to additional shielding, the CTX is heavier than handheld models. When the CTX is used
properly, this shielding reduces measurable radiation outside the enclosure to background level.
Readings
The instrument stray radiation profile was collected –
Using a RadEye B20-ER meter.
At 50keV and 39uA.
Operating without a filter and with the 5mm spot size.
Without a sample covering the opening at sample position.
Background
radiation
Measured background radiation was 10 to 16
Rem/hr when the CTX was off. A distance of 10cm
is shown in the following figure, but its background is any space outside the enclosure.
10cm
10cm
10cm
10cm
bkg
bkg
bkg
bkg
bkg
bkg
bkg
bkg
bkg
bkg
bkg
bkg
bkg
bkg
bkg
bkg
bkg
bkg
bkg
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