Fluke Biomedical TNT 12000 - Manual (Page 137)

PTB Information
Technical Data of Type Examination by PTB
H
H-5
Values of the correction factor k
Q
, for the radiation qualities as determined by
measurement at the PTB.
RQR – Series
Beam Quality
IEC 61267
Mean Energy, Air Kerma
(keV)
k
Q
(Q
n
/Q
70
)
RQR 2 26.2 1.035
RQR 3 29.0 1.023
RQR 4 32.0 1.010
RQR 5 34.8 1
RQR 6 37.8 0.991
RQR 7 41.0 0.983
RQR 8 44.2 0.976
RQR 9 50.8 0.966
RQR 10 61.2 0.956
RQA – Series
Beam Quality
IEC 61267
Mean Energy, Air Kerma
(keV)
k
Q
(Q
n
/Q
70
)
RQA 3 37.7 1.049
RQA 4 44.6 1.020
RQA 5 51.0 1
RQA 6 57.4 0.987
RQA 7 62.9 0.980
RQA 8 68.0 0.978
RQA 9 78.4 0.982
RQA 10 93.2 0.986
MMV – Series
Beam Quality PTB Mean Energy (keV) k
Q
(Q
n
/Q
70
)
MMV 20 13.5 1.012
MMV 25 14.9 1.004
MMV 28 15.4 1
MMV 30 15.7 0.999
MMV 35 16.3 0.995
MMV 40 16.7 0.993
MMV 50 17.3 0.990
MMH – Series
Beam Quality PTB Mean Energy (keV) k
Q
(Q
n
/Q
70
)
MMH20 17.3 0.984
MMH 25 18.6 0.982
MMH 28 19.3 0.981
MMH 30 19.8 0.980
MMH 35 21.0 0.980
MMH 40 22.1 0.978
MMH 50 24.2 0.974