UNIVERSIT . . AT BONN Physikalisches Institut - Prof. Dr. Norbert ...

More documents

Recommendations

Info

. . UNIVERSIT AT BONN Physikalisches Institut Characterization of the Imaging Performance of the Simultaneously Counting and Integrating X-ray Detector CIX von Johannes Fink Dieser Forschungsbericht wurde als (Dissertation Diplomarbeit Statsexamensarbeit) von der Mathematisch - Naturwissenschaftlichen Fakult”at der Universit”at Bonn angenommen. Angenommen am: 23. Oktober 2009, Referent: Prof. Dr. N. Wermes Korreferent: Prof. Dr. H. Schmieden
Page 1: . . UNIVERSIT AT BONN Physikalische
Page 6 and 7: 4.4 Noise . . . . . . . . . . . . .
Page 9 and 10: 1. Introduction In high energy phys
Page 11 and 12: 2. X-ray imaging 2.1 Fundamental pr
Page 13 and 14: 2.1. Fundamental principles of medi
Page 15 and 16: 2.2. Medical X-ray imaging techniqu
Page 17 and 18: 2.3. X-ray detector concepts 9 Coun
Page 19 and 20: 2.3. X-ray detector concepts 11 CsI
Page 21 and 22: 2.4. Signal formation in direct con
Page 23 and 24: 2.5. Direct converting sensor mater
Page 31 and 32: 2.6. Additional considerations for
Page 33 and 34: 3. CIX 0.2 detector 3.1 Concept The
Page 35 and 36: 3.2. CIX 0.2 ASIC specifications 27
Page 37 and 38: 3.3. CIX 0.2 pixel cell concept 29
Page 47 and 48: 3.4. CIX 0.2 modules 39 described i
Page 49 and 50: 3.4. CIX 0.2 modules 41 a) b) c) Bo
Page 51 and 52: 3.5. Chip periphery 43 Fig. 3.20: P
Page 53 and 54:
4. ASIC performance - Electrical te
Page 55 and 56:
4.2. Calibration of the charge inje
Page 57 and 58:
4.2. Calibration of the charge inje
Page 59 and 60:
4.3. Dynamic range 51 C o u n t r a
Page 61 and 62:
4.3. Dynamic range 53 M a x im u m
Page 63 and 64:
4.3. Dynamic range 55 Considering a
Page 65 and 66:
4.4. Noise 57 Bare ASIC CdTe module
Page 67 and 68:
4.4. Noise 59 50 µs 100 µs 200 µ
Page 69 and 70:
4.4. Noise 61 No IntBiasI IntBiasI
Page 71 and 72:
5. CIX X-ray test setup 5.1 X-ray t
Page 73 and 74:
5.3. Mechanical chopper 65 I I leak
Page 75 and 76:
6. Sensor material characterization
Page 77 and 78:
6.1. Leakage current 69 6.1.2 Tempe
Page 79 and 80:
6.1. Leakage current 71 Concerning
Page 81 and 82:
6.2. Temporal response 73 amplitude
Page 83 and 84:
6.2. Temporal response 75 and ROff
Page 85 and 86:
6.2. Temporal response 77 In te g r
Page 87 and 88:
6.2. Temporal response 79 the trapp
Page 89 and 90:
6.3. Module homogeneity and lateral
Page 91 and 92:
Page 93 and 94:
Page 95 and 96:
6.4. Spectroscopic performance 87 u
Page 97 and 98:
6.4. Spectroscopic performance 89 i
Page 99 and 100:
6.4. Spectroscopic performance 91 t
Page 101 and 102:
7. CIX module performance under X-r
Page 103 and 104:
7.1. Dynamic range 95 7.1.1 Counter
Page 105 and 106:
7.1. Dynamic range 97 point at whic
Page 107 and 108:
7.1. Dynamic range 99 Stability The
Page 109 and 110:
7.1. Dynamic range 101 C o u n ts 5
Page 111 and 112:
7.2. Noise 103 7.2 Noise A second a
Page 113 and 114:
7.2. Noise 105 SNR 10 kcps 100 kcps
Page 115 and 116:
7.3. Average photon energy 107 Fig.
Page 117 and 118:
7.3. Average photon energy 109 corr
Page 119 and 120:
7.3. Average photon energy 111 inef
Page 121 and 122:
8. X-ray images 8.1 Raw data and fl
Page 123 and 124:
8.2. Beam hardening 115 beam is sam
Page 125 and 126:
8.4. Average photon energy and cont
Page 127 and 128:
Page 129 and 130:
Page 131 and 132:
9. Conclusion and outlook 9.1 Concl
Page 133 and 134:
9.2. Outlook 125 at photon fluxes b
Page 135:
Appendix
Page 138 and 139:
130 A. Differential current logic
Page 140 and 141:
132 B. CIX 0.2 readout
Page 142 and 143:
134 C. Threshold scans and tuning H
Page 144 and 145:
136 Bibliography [15] “Photograph
Page 146 and 147:
138 Bibliography [48] R. Carmi, G.
show all

UNIVERSIT . . AT BONN Physikalisches Institut - Prof. Dr. Norbert ...

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?