Performance simulation of an x-ray detector for spectral CT with combined Si and Cd[Zn]Te detection layers

Physics in Medicine and Biology

Volumn 55, Issue 24, 2010, Pages 7697-7713

  Herrmann, Christoph ^a   Engel, Klaus Jürgen ^a   Wiegert, Jens ^a  

^a PHILIPS RESEARCH LABORATORIES   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

BEAM PROJECTIONS; BEAM SHAPERS; CD-ZN-TE; CHARGE DIFFUSION; COMPTON SCATTER; COMPUTED TOMOGRAPHY; CORRECTION SCHEMES; COUNT RATES; CT SYSTEM; DETECTOR RESPONSE; DIRECT BEAMS; DIRECT CONVERTING; ENERGY-RESOLVING DETECTORS; GAAS; HIGH-COUNT RATE; LAYER THICKNESS; MONTE CARLO; PERFORMANCE SIMULATION; PHOTON COUNTING; PHOTON COUNTING DETECTORS; PIXEL CROSS-TALK; PIXEL PITCH; READOUT ELECTRONICS; RELIABILITY PROBLEMS; ROOM TEMPERATURE; SPECTRAL INFORMATION; STOPPING POWER; SUB-PIXELS; THIN LAYERS; TO A VERY LARGE; TRUNCATED RECONSTRUCTION; X-RAY DETECTOR; X-RAY FLUX;

COMPTON SCATTERING; COMPUTERIZED TOMOGRAPHY; CROSSTALK; DETECTORS; FLIGHT DYNAMICS; FRACTURE MECHANICS; SILICON; TELLURIUM COMPOUNDS; X RAYS; ZINC;

PIXELS;

CADMIUM; CDZNTE; SILICON; TELLURIUM; ZINC;

ARTICLE; COMPUTER ASSISTED TOMOGRAPHY; HUMAN; IMAGE PROCESSING; IMAGE QUALITY; INSTRUMENTATION; KINETICS; MONTE CARLO METHOD; THORAX RADIOGRAPHY;

CADMIUM; HUMANS; IMAGE PROCESSING, COMPUTER-ASSISTED; KINETICS; MONTE CARLO METHOD; PHANTOMS, IMAGING; RADIOGRAPHY, THORACIC; SILICON; TELLURIUM; TOMOGRAPHY, X-RAY COMPUTED; ZINC;

EID: 78650045358     PISSN: 00319155     EISSN: 13616560     Source Type: Journal    
DOI: 10.1088/0031-9155/55/24/020     Document Type: Article

References (21)

1. Bornefalk H and Danielsson M 2010 Photon-counting spectral computed tomography using silicon strip detectors: a feasibility study Phys. Med. Biol. 55 1999-2022
2. Engel K J, Herrmann C and Zeitler G 2008 X-ray scattering in single- and dual-source CT Med. Phys. 35 318-32
3. Fink J, Kraft E, Krüger H, Wermes N, Engel K J and Herrmann C 2009 Comparison of pixelated CdZnTe, CdTe and Si sensors with the simultaneously counting and integrating CIX chip IEEE Trans. Nucl. Sci 56 3819-27
4. He Z 2001 Review of the Shockley-Ramo theorem and its application in semiconductor gamma-ray detectors Nucl. Instrum. Methods Phys. Res. A 463 250-67
5. Iwanczyk J S, Nygård E, Meirav O, Arenson J, BarberWC, Hartsough N E,Malakhov N andWessel J C 2007 Photon counting energy dispersive detector arrays for x-ray imaging IEEE Nuclear Science Symp. Conf. Record 2007 (26 October-3 November 2007) vol 4 pp 2741-48
6. Klein O and Nishina Y 1928 The scattering of light by free electrons according to Dirac's new relativistic dynamics Nature 122 398-9
7. Knoll G F 1999 Radiation Detection and Measurement 3rd edn (New York: Wiley)
8. Kozorezov A G, Wigmore J K, Owens A, den Hartog R and Peacock A 2005 Analytic model for the spatial and spectral resolution of pixelated semiconducting detectors of high-energy photons J. Appl. Phys. 97 074502
9. Kraft E et al 2007 Counting and integrating readout for direct conversion x-ray imaging: concept, realization and first prototype measurements IEEE Trans. Nucl. Sci. 54 383-90
10. Krüger H et al 2008 CIX-a detector for spectrally enhanced x-ray imaging by simultaneous counting and integrating Proc. SPIE 6913 69130P
11. Ludqvist M, Cederström B, Chmill V, Danielsson M and Hasegawa B 2001 Evaluation of a photon-counting x-ray imaging system IEEE Trans. Nucl. Sci. 48 1530-6
12. Pellegrini G, Chmeissani M, Maiorino M, Blanchot G, Garcia J, Lozano M, Martinez R, Puigdengoles C, Ullan M and Casado P 2004 Performance limits of a 55μm pixel CdTe detector IEEE NSS MIC 2004 pp 2104-9
13. Roessl E, Schlomka J-P and Proksa R 2008 Edge-on semiconductor x-ray detectors-towards high-rate counting computed tomography IEEE NSS-MIC-RTSD 2008, Conf. Rec. Talk NM2-3
14. Roessl E and Proksa R 2007 K-edge imaging in x-ray computed tomography usingmulti-bin photon counting detectors Phys. Med. Biol. 52 4679-96
15. Schlomka J P et al 2008 Experimental feasibility of multi-energy photon-counting K-edge imaging in pre-clinical computed tomography Phys. Med. Biol. 53 4031-47
16. Shikhaliev P M 2008a Energy-resolved computed tomography: first experimental results Phys. Med. Biol. 53 5595-613
17. Shikhaliev P M 2008b Computed tomography with energy-resolved detection: a feasibility study Phys. Med.Biol. 53 1475-95
18. Spieler H 2006 Semiconductor Detector Systems (Oxford: Oxford Science Publications) reprint with corrections
19. Steadman R, Herrmann C, Mülhens O, Maeding D G, Colley J, Firlet T, Chappo M, Harwood B and Kosty D 2010 ChromAIX: a high-rate energy-resolving photon-counting ASIC for spectral computed tomography Proc SPIE 7622 762220
20. Takahashi T, Paul B, Hirose K,Matsumoto C, Ohno R, Ozaki T,Mori K and Tomita Y 1999 High-resolution Schottky CdTe diode for hard x-ray and gamma-ray astronomy Nucl. Instrum. Methods Phys. Res. A 436 111-9
21. Tucker D M, Barnes G T and Chakroborty D P 1991 Semi-empirical model for generating tungsten target x-ray spectra Med. Phys. 18 211-8