Bruker CTX User Manual

S1 TI
TAN, T
RACER
5, and CTX
User Manual
030.0112.04.0
23 of 67
X-ray beam
diamet
er
The followi
ng table provides specific beam diameters at selected distances from the beam port
when no
sample is in place.
Beam Po
rt
Distan
ce
in
cm
Beam D
iameter
in
cm
1.50
1.20
5
2.5
10
4.23
30
11.34
100
36.5
Testing
conditions
,
open beam
Radiation
measurements were conducted
–
 Using a Th
ermo RadEye B20-ER meter corrected by results from NanoDots.
 With the survey meter calibrated by the survey meter manufacturer.
The dose at the Beam Port for the open beam measurement was extrapolated from the 5cm and
10cm results on a logarithmic scale as described in IEC 62495.
Distance vs.
dose
Worst
-Case
50KeV, 39

A
Blank, N
o Filter
Distance
(cm)
Dose
(Rem/hr)
Dose
(Sieverts/hr)
With Du
plex
(Rem/hr
)
With Du
plex
(Sieverts/hr)
Beam P
ort
223.7
2.237
1300
13.00
5 cm
119.0
1.190
289.0
2.890
10 cm 63.24
0.6324 144.5 1.445
30 cm
19.9
0.199
44.2
0.442
100 cm
1.96
0.0196
Background
Background
Eye /
Skin
Time t
o
Limit
4.02 / 13.4
Minutes
4.02 / 13.4
Minutes
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Bruker CTX Specifications

General

Brand	Bruker
Model	CTX
Category	Measuring Instruments
Language	English