Performance of Large Area Thin-Film CdTe Detector in Diagnostic X-Ray Imaging - International Journal of Medical Physics, Clinical Engineering and Radiation Oncology

IJMPCERO > Vol.2 No.3, August 2013

International Journal of Medical Physics, Clinical Engineering and Radiation Oncology

Volume 2, Issue 3 (August 2013)

ISSN Print: 2168-5436 ISSN Online: 2168-5444

Google-based Impact Factor: 0.54 Citations h5-index & Ranking

Performance of Large Area Thin-Film CdTe Detector in Diagnostic X-Ray Imaging ()

HTML

Download as PDF (Size: 1616KB) PP. 98-109

DOI: 10.4236/ijmpcero.2013.23014 5,301 Downloads 11,928 Views Citations

Author(s)

Diana Shvydka, , Xiance Jin, E. Ishmael Parsai

Affiliation(s)

Department of Radiation Oncology, University of Toledo, Toledo, USA.
Department of Radiation Oncology, University of Toledo, Toledo, USA Department of Radiotherapy and Chemotherapy, Wenzhou Medical University, Wenzhou, China.

ABSTRACT

Significant advancement in thin-film cadmium telluride (CdTe) deposition techniques in recent years has made this material attractive for the development of low-cost large area detector. Here we evaluate the intrinsic performance of the detector for a range of energies relevant to diagnostic imaging applications, such as fluoroscopy. The input x-ray spectra for a set of tube potentials ranging from 70 to 140 kVp were computed with the tungsten anode spectral model using interpolating polynomials (TASMIP) based on the measured output of our diagnostic x-ray simulator. Frequency-dependent detector performance analysis was conducted through Monte Carlo simulations of energy deposition within the detector. Intrinsic modulation transfer functions (MTF), noise power spectra (NPS), and detective quantum efficiencies (DQE) were computed for a set of CdTe detectors of varying thickness, from 100 to 1000 μm. MTF behavior at higher frequencies was affected by thickness and input energy, NPS increased with film thickness and energy, and the resultant DQE(f) decreased with increasing the input energy, but increased with the thickness of the detector. We found that the optimal thickness of CdTe under diagnostic x-ray beam is in the range of 300 to 600 μm. Physical properties of CdTe, such as the high atomic number and density, used in direct detection configuration, together with the recently established thin-film manufacturing techniques makes this technology a promising photoconductor for large area diagnostic flat panel imaging.

KEYWORDS

Monte Carlo; CdTe Detector; Photovoltaic; Thin Film; TASMIP; DQE; X-Ray Imaging

Share and Cite:

D. Shvydka, ,. Jin and E. Parsai, "Performance of Large Area Thin-Film CdTe Detector in Diagnostic X-Ray Imaging," International Journal of Medical Physics, Clinical Engineering and Radiation Oncology, Vol. 2 No. 3, 2013, pp. 98-109. doi: 10.4236/ijmpcero.2013.23014.

Cited by

[1]	Radiation dosimetry in medicine using II-VI semiconductors
	Journal of Radiation Research and Applied Sciences, 2022

[2]	Determination of the proton LET using thin film solar cells coated with scintillating powder
	Medical …, 2022

[3]	Monte Carlo Modeling and Design of Photon Energy Attenuation Layers for> 10× Quantum Yield Enhancement in Si-Based Hard X-ray Detectors
	2021

[4]	Characteristics of radiographic images acquired with CdTe, CCD and CMOS detectors in skull radiography
	2020

[5]	Spectral correction algorithm for multispectral CdTe x-ray detectors
	Optical Engineering, 2018

[6]	Estudo do receptor CdTe na radiologia odontológica digital= Study of the CdTe detector applied in digital oral radiology
	2018

[7]	ESTUDO DO RECEPTOR CdTe NA RADIOLOGIA ODONTOLÓGICA DIGITAL
	Thesis, 2018

[8]	Cadmium telluride semiconductor detector for improved spatial and energy resolution radioisotopic imaging
	World journal of nuclear medicine, 2017

[9]	Thin‐film CdTe detector for microdosimetric study of radiation dose enhancement at gold‐tissue interface
	Journal of Applied Clinical Medical Physics, 2016

[10]	Thin-film CdTe detector for microdosimetric study of radiation dose enhancement at gold-tissue interface
	2016

[11]	Charge transport in pure and stabilized amorphous selenium: re-examination of the density of states distribution in the mobility gap and the role of defects
	Journal of Materials Science: Materials in Electronics, 2015

[12]	Nanoparticle-aided radiation therapy: Micro-dosimetry and evaluation of the mediators producing biological damage
	2014

[13]	Fabrication of an x-ray detector based on molecular plastic electronics
	SPIE Organic Photonics+ Electronics. International Society for Optics and Photonics, 2014

[14]	Doctor of Philosophy Degree in Physics
	2014

Journals Menu

Follow SCIRP

	+1 323-425-8868
	customer@scirp.org
	+86 18163351462(WhatsApp)
	1655362766

	Paper Publishing WeChat

Journals Menu

Home

About SCIRP

Service

Policies