伦琴因发现 X射线获得首届诺贝尔物理学奖。
1901 伦琴 (Roentgen) 发现 X射线 (1895)
1914 劳厄 （ Laue） 晶体的 X射线衍射
1915 布拉格父子 (Bragg) 分析晶体结构
1917 巴克拉 (Barkla) 发现元素的标识 X射线
1924 塞格巴恩 (Siegbahn ) X射线光谱学
1927 康普顿 (Compton等六人 ) 康普顿效应
1936 德拜 (Debye) 化学
1946 马勒 (Muller) 医学
1962 沃生 (Wason等三人 ) 医学
1964 霍奇金 (Hodgkin) 化学
1979 柯马克和豪森菲尔德 （ Cormack/Hounsfield） 医学
1981 塞格巴恩 (Siegbahn) 物理同 X射线有关的诺贝尔奖正片与负片防护防护洛书九宫图，幻方洛书九宫图，幻方河出图,洛出书,圣人则之
---易?系辞伏羲时代,黄河中有龙马背负河图,
夏禹时代,洛水中有神龟背负洛书,
洛书九宫图，幻方洛书九宫图，幻方
x1 x2 x3
x6 x5x4
x9x8x7
15321 xxx
已经数字化
Reconstruction
Idea
4?2?3
3?2?4
4
6
3
7
42
31
43
21
(From G,Wang)
Algebraic Reconstruction Technique
(ART)
3 2
3 2
4 3
2?
0 0
0 0
4 3
2?
6 4
-2
2 Update a guess
based on
data differences
Guess 1
Guess 0
Guess 2
Error
Error
(From G,Wang)
洛书九宫图，幻方
8 1 6
7
29
5
4
3
洛书九宫图，幻方
9
8
7
6
5
4
3
2
1
001010100
100010001
100100100
010010010
001001001
111000000
000111000
000000111
15
15
15
15
15
15
15
15
x
x
x
x
x
x
x
x
x
Rxp?
稀疏矩阵比较图像恢复与图像重建
nRxp
nHfg
融会贯通洛书九宫图，幻方
8 1 6
7
29
5
4
3
多个解演示 Matlab
First Generation
One detector
Translation-rotation
Parallel-beam
(From G,Wang)
Second Generation
Multiple detectors
Translation-rotation
Small fan-beam
(From G,Wang)
Third Generation
Multiple detectors
Translation-rotation
Large fan-beam
(From G,Wang)
Fourth Generation
Detector ring
Source-rotation
Large fan-beam
演示 csim
重建算法
(From G,Wang)
Third & Fourth Generations
(From Picker)
(From Siemens)
E-Beam CT
Scanner
Speed,50,100 ms
Thickness,1.5,3,6,10 mm
ECG trigger cardiac images
(From Imatron)
(From G,Wang)
Simultaneous
Source rotation
Table translation
Data acquisition
Spiral/Helical Scanning
演示 Matlab
Spiral CT
Scanner
Gantry
Data acquisition system
Table
Computer
Parallel processors
Control console
Storage units
Tapes,disks
Recording device
Network interface
X-ray generator
Heat exchanger(From Elscint)
Spiral CT
Scanner
Gantry
Data acquisition
system
Detectors
Storage units:
Tapes,disks
Display
Control
console
Computer
Parallel
processor
Table Recording
Source
Network
Filter
Data Acquisition System (DAS)
Source Detector
Pre-Collimator Post-Collimator
Patient
Scattering
(From G,Wang)
Data Acquisition System
(DAS)
X-ray Tube
Detectors
CT Gantry
(From Siemens)
Filter
Source
Detector (From G,Wang)
演示 DrawSpiral
1901 伦琴 (Roentgen) 发现 X射线 (1895)
1914 劳厄 （ Laue） 晶体的 X射线衍射
1915 布拉格父子 (Bragg) 分析晶体结构
1917 巴克拉 (Barkla) 发现元素的标识 X射线
1924 塞格巴恩 (Siegbahn ) X射线光谱学
1927 康普顿 (Compton等六人 ) 康普顿效应
1936 德拜 (Debye) 化学
1946 马勒 (Muller) 医学
1962 沃生 (Wason等三人 ) 医学
1964 霍奇金 (Hodgkin) 化学
1979 柯马克和豪森菲尔德 （ Cormack/Hounsfield） 医学
1981 塞格巴恩 (Siegbahn) 物理同 X射线有关的诺贝尔奖正片与负片防护防护洛书九宫图，幻方洛书九宫图，幻方河出图,洛出书,圣人则之
---易?系辞伏羲时代,黄河中有龙马背负河图,
夏禹时代,洛水中有神龟背负洛书,
洛书九宫图，幻方洛书九宫图，幻方
x1 x2 x3
x6 x5x4
x9x8x7
15321 xxx
已经数字化
Reconstruction
Idea
4?2?3
3?2?4
4
6
3
7
42
31
43
21
(From G,Wang)
Algebraic Reconstruction Technique
(ART)
3 2
3 2
4 3
2?
0 0
0 0
4 3
2?
6 4
-2
2 Update a guess
based on
data differences
Guess 1
Guess 0
Guess 2
Error
Error
(From G,Wang)
洛书九宫图，幻方
8 1 6
7
29
5
4
3
洛书九宫图，幻方
9
8
7
6
5
4
3
2
1
001010100
100010001
100100100
010010010
001001001
111000000
000111000
000000111
15
15
15
15
15
15
15
15
x
x
x
x
x
x
x
x
x
Rxp?
稀疏矩阵比较图像恢复与图像重建
nRxp
nHfg
融会贯通洛书九宫图，幻方
8 1 6
7
29
5
4
3
多个解演示 Matlab
First Generation
One detector
Translation-rotation
Parallel-beam
(From G,Wang)
Second Generation
Multiple detectors
Translation-rotation
Small fan-beam
(From G,Wang)
Third Generation
Multiple detectors
Translation-rotation
Large fan-beam
(From G,Wang)
Fourth Generation
Detector ring
Source-rotation
Large fan-beam
演示 csim
重建算法
(From G,Wang)
Third & Fourth Generations
(From Picker)
(From Siemens)
E-Beam CT
Scanner
Speed,50,100 ms
Thickness,1.5,3,6,10 mm
ECG trigger cardiac images
(From Imatron)
(From G,Wang)
Simultaneous
Source rotation
Table translation
Data acquisition
Spiral/Helical Scanning
演示 Matlab
Spiral CT
Scanner
Gantry
Data acquisition system
Table
Computer
Parallel processors
Control console
Storage units
Tapes,disks
Recording device
Network interface
X-ray generator
Heat exchanger(From Elscint)
Spiral CT
Scanner
Gantry
Data acquisition
system
Detectors
Storage units:
Tapes,disks
Display
Control
console
Computer
Parallel
processor
Table Recording
Source
Network
Filter
Data Acquisition System (DAS)
Source Detector
Pre-Collimator Post-Collimator
Patient
Scattering
(From G,Wang)
Data Acquisition System
(DAS)
X-ray Tube
Detectors
CT Gantry
(From Siemens)
Filter
Source
Detector (From G,Wang)
演示 DrawSpiral
