GE CT-9800 - Page 173

GE MEDICAL SYSTEMS CT 9800 QUICK SYSTEM
Rev. 20 Direction 18000
4-12-19
MEAN CT NUMBER AND NOISE (WH SOFTWARE)
DATA SHEET
48cm PHANTOM/LARGE CALIBRATION CT9800
N-NUMBER:
RUN NUMBER:
TECHNIC SPECIFICATIONS SLICE 1 SLICE 2
Phantom
CAL
SLICE
(mm)
KVP
ma
Sec.
X
0
= ? AVσ
0
≤?X
c
=? AVσ
c
≤?
X
0
σ
0
X
c
σ
c
X
0
σ
0
X
c
σ
c
35cm
M
10
120
200
4
N ± 3 8.0 N ± 3 7.9
35cm
M
5
140
170
4
N ± 3 10.7 N ± 3 46.5
35cm
M
5
120
200
4
N ± 3 11.4 N ± 3 35.6
35cm
M
1.5
120
200
4
N ± 3 21.0 N ± 3 65.9
35cm
M
10
140
170
4
N ± 3 7.4 N ± 3 36.1
35cm
M
3
120
200
2
N ± 3 16.8 N ± 3 50.9