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A9
Vatech A9 Technical Manual
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V
atech
A9
(PHT
-30CSS)
T
echnical manual
VDH
-
Te
M
-0
98
100
/ 214
COPYRIG
HT© 20
20
VAT
E
C
H
.
ALL RIGHTS RE
SERVED
C
hapter
3
. CT
Image Evalua
tion
1.
Sp
atial R
esol
ution(
MTF) e
val
ua
ti
on
1.1.
S
patial Resolution (MTF) standards
Parameter
LSL
(
Lower S
pecifi
cation Limit)
USL (Upper Specification Lim
i
t)
MTF 10% <lp/mm>
1
.00
3.50
1.2.
Phantom Spec
ification
QUART
: DVT Phantom
100
102
Table of Contents
default chapter
2
General Information
2
Table of Contents
3
Before You Begin
9
Conventions in this Guide
9
Safety Information
10
Equipment Safety Instructions
11
Radioactive Warning
12
Pre-Check Points for Service Technician
13
Chapter 1. Hardware Part Service Guide
14
Vatech A9(PHT-30CSS) System Block Diagram
14
Vatech A9(PHT-30CSS) Board Configuration
15
Vertical Frame Part
15
Handle Unit
20
Rotating Unit Part
22
CEPH Unit
26
Vatech A9(PHT-30CSS) Connection Diagram
28
Power and Ground Connection Diagram
28
Main MCU and SENSOR Connection Diagram
31
Sensor Part Connection Diagram
33
CEPH SENSOR Part Connection Diagram
33
Connection Diagram (Total Assembly)
34
Disassembly of Vatech A9(PHT-30CSS) Covers
35
Vertical Frame Part
35
Rotating Unit Part
36
Handle Frame Unit Part
43
CEPH Unit Part
48
Chapter 2. CT Image Optimization
52
Geometry Information
52
Equipment Default Values
53
Check the Equipment Horizontal Level
53
Check the Sensor Horizontal Level
54
Equipment Start Position Setting
54
Bite Location (CT Mode)
55
CT Sensor Calibration
56
CT Sensor Calibration Standard
56
Before CT Sensor Calibration
57
CT Sensor Setting
57
CT Sensor: Dark Calibration
59
CT Sensor: Bright Calibration
60
CT Bad Pixel Verification
66
CT Geometry Calibration
68
Sensor Uoffset Setting
68
Bead Phantom Image Acquisition
72
Handle Frame Align
79
CT Collimator Alignment
86
CT Collimator Alignment with Ezalign
88
DAP Calibration
89
CT Number Calibration
93
Acquire CT Phantom Image
94
Chapter 3. CT Image Evaluation
101
Spatial Resolution(MTF) Evaluation
101
Spatial Resolution (MTF) Standards
101
Phantom Specification
101
Test Method
102
Test Result
102
Contrast Evaluation
103
Contrast Standards
103
Phantom Specification
103
Test Method
103
Test Result
103
Noise Evaluation
104
Noise Standards
104
Phantom Specification
104
Test Method
104
Test Result
104
Homogeneity Evaluation
105
Homogeneity Standards
105
Phantom Specification
105
Test Method
105
Test Result
105
CT Number Accuracy Evaluation
106
CT Number Standards
106
Phantom Specification
106
Test Method
107
Test Result
107
High Contrast Resolution Evaluation
108
High Contrast Resolution Standards
108
Phantom Specification
108
Test Method
108
Test Result
109
Low Contrast Resolution Evaluation
110
Low Contrast Resolution Standards
110
Phantom Specification
110
Test Method
110
Test Result
110
Slice Thickness Evaluation
111
Slice Thickness Standard
111
Phantom Specification
111
Test Method
111
Test Result
111
Collimator Alignment Evaluation
112
Collimator Alignment Standard
112
Test Method
113
Test Result
113
Chapter 4. PANO Image Optimization
114
Geometry Information
114
Equipment Default Values
114
Bite Location (PANO Mode)
114
PANO Sensor Calibration
115
PANO Sensor Calibration Standard
115
Before PANO Sensor Calibration
115
PANO Sensor Setting
116
PANO Sensor: Dark Calibration
117
PANO Sensor: Bright Calibration
119
PANO Collimator Alignment
122
PANO Collimator Alignment with Ezalign
124
PANO Collimator Speed Alignment
125
PANO Collimator Speed Alignment with Ezalign
130
PANO Geometry Calibration
131
PANO Geometry Calibration Standard
131
Right and Left Pin Distance Calibration
132
Center Pin Position Calibration (POFS)
134
Center Ball Size Calibration
135
Line Pair Resolution
136
Vertical Laser Beam Align
137
Chapter 5. PANO Image Evaluation
138
Line Pair Resolution Evaluation
138
Resolution Standards
138
Phantom Specification
138
Test Method
138
Test Result
138
Low Contrast Resolution Evaluation
139
Low Contrast Standards
139
Phantom Specification
139
Test Method
139
Test Result
139
Noise Evaluation
140
Noise Standards
140
Phantom Specification
140
Test Method
140
Test Result
140
Homogeneity Evaluation
141
Homogeneity Standards
141
Phantom Specification
141
Test Method
141
Test Result
141
Collimator Alignment Evaluation
142
Collimator Alignment Standard
142
Test Method
142
Test Result
142
Chapter 3. CEPH Image Optimization
143
CEPH Sensor Calibration
143
Before CEPH Sensor Calibration
143
CEPH Sensor Setting
144
CEPH Sensor: Dark Calibration
145
CEPH Sensor: Bright Calibration
146
Bright Calibration: 5 Points
147
Bad Pixel Spec. & Definition
149
CEPH Geometry Calibration
150
Lateral Mode Start Position Setting
150
PA Mode Start Position Setting
152
Line Pair Resolution
154
CEPH Ear-Rod Alignment
155
CEPH Collimator Alignment
158
CEPH Collimator Align with Ezalign
160
How to Use V.I
161
Point Setting Method for Lateral Mode Image
163
Point Setting Method for Frontal Mode Image
166
Cautions When Setting V.I.P.S Point
167
Chapter 6. CEPH Image Evaluation
168
Lateral Mode Start Position Evaluation
168
Lateral Mode Starting Position Standard
168
Phantom Specification
168
Test Method
168
Test Result
168
PA Mode Start Position Evaluation
169
PA Mode Starting Position Standard
169
Phantom Specification
169
Test Method
169
Test Result
169
Line Pair Resolution Evaluation
170
Noise Standards
170
Phantom Specification
170
Test Method
170
Test Result
170
Low Contrast Resolution Evaluation
171
Homogeneity Standards
171
Phantom Specification
171
Test Method
171
Test Result
171
Collimator Alignment Evaluation
172
Collimator Alignment Standard
172
Test Method
173
Test Result
173
Chapter 7. Firmware Upgrade Guide
174
Firmware Upgrade Procedure (Ethernet Communication)
174
Installing Firmware Upgrade Software (Serial Communication)
176
Firmware Upgrade Procedure (Serial Communication)
177
Checking Firmware Version (Serial Communication)
183
Appendix
184
Main MCU Board Parameters
184
Chapter 8. Command-List Guide
189
Communication Protocol
189
Communication Setting
189
Command Formation
190
Vatech A9(PHT-30CSS) Command-List
191
Procedure for Using Remote Exposure Function
198
When Exposure the PANO/CEPH in Console Software
198
Remote Exposure Sequence When Acquiring the Bright Calibration
198
TUTS Test
198
XTST Test
198
Error Message List
199
Chapter 9. Console Software Error Message List
201
Hardware Error Code
201
Software Error Code
204
Acquisition Module Error Code
209
Image Processing Error Code
210
Stitching SW Error Code
213
Other manuals for Vatech A9
User Manual
196 pages
Installation Manual
162 pages
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Vatech A9 Specifications
General
Brand
Vatech
Model
A9
Category
Medical Equipment
Language
English
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