Fluke Biomedical TNT 12000 - Manual (Page 115)

Model 500-100 CT Probe
Specifications
C
C-3
Energy Response
(Phantom Adapter Removed)
mmAI hvl
Indicated/actual
1 10
0.7
0.8
0.9
1.0
1.1
1.2
fct43.eps
Figure C-2. Typical Energy Dependence of Model 500-100 CT Ion Chamber, normalized to M100
Figure C-3 shows the typical energy response of the Model 500-100 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.
Energy Response
(Phantom Adapter Removed)
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
1st HVL (mm Al)
Indicated / Actual
RQR RQA RQT
fct320.eps
Figure C-3. Typical Energy Response for IEC 61267 Beam Quality