Fluke Biomedical TNT 12000 - Manual (Page 119)

Model 500-200 CT Probe
Specifications
D
D-3
Typical Energy Dependence
HVL (mmAI)
Indicated/actual
1 10
0.8
0.85
0.9
0.95
1.05
1.1
1
1.2
1.15
fct45.eps
Figure D-2. Typical Energy Dependence of Model 500-200 CT Ion Chamber
Figure D-3 shows the typical energy response of the Model 500-200 CT ion chamber per
IEC 61267 beam qualities. The three plots show RQR normalized for RQR 9, RQA
normalized for RQA 9, and RQT normalized for RQT 9
0.90
0.92
0.94
0.96
0.98
1.00
1.02
1.04
1.06
1.08
1.10
0 2 4 6 8 10 12 14
RQR RQA RQT
Energy Response
1st HVL (mm Al)
Indicated / Actual
fct321.eps
Figure D-3. Typical Energy Response for IEC 61267 Beam Quality