Simulation, optimization and testing of a novel high spatial resolution X-ray imager based on Zinc Oxide nanowires in Anodic Aluminium Oxide membrane using Geant4

被引：5

作者：

Esfandi, F. ^{[1
]}

Saramad, S. ^{[1
]}

机构：

[1] Amirkabir Univ Technol, Energy Engn & Phys Dept, Tehran, Iran

来源：

JOURNAL OF INSTRUMENTATION | 2015年 / 10卷

关键词：

Detector design and construction technologies and materials; Scintillators; scintillation and light emission processes (solid; gas and liquid scintillators); Scintillators and scintillating fibres and light guides; Detector modelling and simulations I (interaction of radiation with matter; interaction of photons with matter; interaction of hadrons with matter; etc); INTERPORE DISTANCE; PORE ARRAYS; DETECTORS; SEMICONDUCTORS; SCINTILLATORS; ZNO;

D O I：

10.1088/1748-0221/10/07/P07019

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

In this work, a new generation of scintillator based X-ray imagers based on ZnO nanowires in Anodized Aluminum Oxide (AAO) nanoporous template is characterized. The optical response of ordered ZnO nanowire arrays in porous AAO template under low energy X-ray illumination is simulated by the Geant4 Monte Carlo code and compared with experimental results. The results show that for 10 keV X-ray photons, by considering the light guiding properties of zinc oxide inside the AAO template and suitable selection of detector thickness and pore diameter, the spatial resolution less than one micrometer and the detector detection efficiency of 66% are accessible. This novel nano scintillator detector can have many advantages for medical applications in the future.

引用

页数：12

共 20 条

[1] GEANT4-a simulation toolkit [J].

Agostinelli, S ;

Allison, J ;

Amako, K ;

Apostolakis, J ;

Araujo, H ;

Arce, P ;

Asai, M ;

Axen, D ;

Banerjee, S ;

Barrand, G ;

Behner, F ;

Bellagamba, L ;

Boudreau, J ;

Broglia, L ;

Brunengo, A ;

Burkhardt, H ;

Chauvie, S ;

Chuma, J ;

Chytracek, R ;

Cooperman, G ;

Cosmo, G ;

Degtyarenko, P ;

Dell'Acqua, A ;

Depaola, G ;

Dietrich, D ;

Enami, R ;

Feliciello, A ;

Ferguson, C ;

Fesefeldt, H ;

Folger, G ;

Foppiano, F ;

Forti, A ;

Garelli, S ;

Giani, S ;

Giannitrapani, R ;

Gibin, D ;

Cadenas, JJG ;

González, I ;

Abril, GG ;

Greeniaus, G ;

Greiner, W ;

Grichine, V ;

Grossheim, A ;

Guatelli, S ;

Gumplinger, P ;

Hamatsu, R ;

Hashimoto, K ;

Hasui, H ;

Heikkinen, A ;

Howard, A .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2003, 506 (03) :250-303

[2] SCATTERING BY IONIZATION AND PHONON EMISSION IN SEMICONDUCTORS [J].

ALIG, RC ;

BLOOM, S ;

STRUCK, CW .

PHYSICAL REVIEW B, 1980, 22 (12) :5565-5582

[3] Electrical characterization of 1.8 MeV proton-bombarded ZnO [J].

Auret, FD ;

Goodman, SA ;

Hayes, M ;

Legodi, MJ ;

van Laarhoven, HA ;

Look, DC .

APPLIED PHYSICS LETTERS, 2001, 79 (19) :3074-3076

[4]

Ebihara K., 1983, KINZOKU HYOMEN GIJUT, V34, P548, DOI [DOI 10.4139/SFJ1950.34.548, DOI 10.4139/sfj1950.34.548]

[5]

French RH, 1998, J AM CERAM SOC, V81, P2549, DOI 10.1111/j.1151-2916.1998.tb02660.x

[6]

Geant4 Collaboration, Physics Reference Manual

[7] Review of medical imaging with emphasis on X-ray detectors [J].

Hoheisel, M .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2006, 563 (01) :215-224

[8]

LEVIN A, 1996, IEEE NUCL SCI S, V2, P702

[9] Hexagonal pore arrays with a 50-420 nm interpore distance formed by self-organization in anodic alumina [J].

Li, AP ;

Muller, F ;

Birner, A ;

Nielsch, K ;

Gosele, U .

JOURNAL OF APPLIED PHYSICS, 1998, 84 (11) :6023-6026

[10]

Li AP, 2000, ELECTROCHEM SOLID ST, V3, P131, DOI 10.1149/1.1390979

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