Technical Note: Nanometric organic photovoltaic thin film detectors for dose monitoring in diagnostic x-ray imaging

2015 ◽  
Vol 42 (7) ◽  
pp. 4027-4032 ◽  
Author(s):  
Bassem Elshahat ◽  
Hardeep Singh Gill ◽  
Ilya Filipyev ◽  
Suman Shrestha ◽  
Jürgen Hesser ◽  
...  
Keyword(s):  
Thin Film ◽  
Technical Note ◽  
Organic Photovoltaic ◽  
X Ray ◽  
Dose Monitoring ◽  
X Ray Imaging

scholarly journals Quality management systems in radiology

2013 ◽  
Vol 17 (3) ◽  
pp. 84-88
Author(s):  
Geoffrey K. Korir ◽  
Jeska S. Wambani ◽  
Ian K. Korir ◽  
Mark Tries ◽  
Beatrice M. Mulama
Keyword(s):  
Quality Control ◽  
Quality Management ◽  
Management Systems ◽  
Reference Level ◽  
Quality Management Systems ◽  
X Ray ◽  
Dose Monitoring ◽  
X Ray Imaging ◽  
National Quality ◽  
Medical Facilities

Background: The use of X-ray imaging is ever increasing in proportion to the need for radiological services and technological capabilities. Quality management that includes patient radiation dose monitoring is fundamental to safety and quality improvement of radiological services.Objective: To assess the level of quality management systems in X-ray medical facilities in Kenya.Methods: Quality management inspection, quality control performance tests and patient radiation exposure were assessed in 54 representative X-ray medical facilities. Additionally, a survey of X-ray examination frequency was conducted in 140 hospitals across the country.Results: The overall findings placed the country’s X-ray imaging quality management systems at 61±3% out of a possible 100%. The most and the least quality assurance performance indicators were general radiography X-ray equipment quality control tests at 88±4%, and the interventional cardiology adult examinations below diagnostic reference level at 25±1%, respectively.Conclusions: The study used a systematic evidence-based approach for the assessment of national quality management systems in radiological practice in clinical application, technical conduct of the procedure, image quality criteria, and patient characteristics as part of the quality management programme.

scholarly journals Growth and instability of the liquid rim in the crown splash regime

2014 ◽  
Vol 752 ◽  
pp. 485-496 ◽  
Author(s):  
G. Agbaglah ◽  
R. D. Deegan
Keyword(s):  
Thin Film ◽  
High Speed ◽  
Unstable Mode ◽  
Linear Stability Theory ◽  
Scaling Relations ◽  
X Ray ◽  
X Ray Imaging ◽  
Secondary Droplets ◽  
The Impact ◽  
Good Agreement

AbstractWe study the formation, growth and disintegration of jets following the impact of a drop on a thin film of the same liquid for $\def \xmlpi #1{}\def \mathsfbi #1{\boldsymbol {\mathsf {#1}}}\let \le =\leqslant \let \leq =\leqslant \let \ge =\geqslant \let \geq =\geqslant \def \Pr {\mathit {Pr}}\def \Fr {\mathit {Fr}}\def \Rey {\mathit {Re}}\mathit{We}<1000$ and $\mathit{Re}<2000$ using a combination of numerical simulations and linear stability theory (Agbaglah, Josserand & Zaleski, Phys. Fluids, vol. 25, 2013, 022103). Our simulations faithfully capture this phenomena and are in good agreement with experimental profiles obtained from high-speed X-ray imaging. We obtain scaling relations from our simulations and use these as inputs to our stability analysis. The resulting predictions for the most unstable wavelength are in excellent agreement with experimental data. Our calculations show that the dominant destabilizing mechanism is a competition between capillarity and inertia but that deceleration of the rim provides an additional boost to growth. We also predict over the entire parameter range of our study the number and timescale for formation of secondary droplets formed during a splash, based on the assumption that the most unstable mode sets the droplet number.

scholarly journals Blue-enhanced thin-film photodiode for dual-screen x-ray imaging

2009 ◽  
Vol 95 (26) ◽  
pp. 263505 ◽  
Author(s):  
Y. Vygranenko ◽  
A. Sazonov ◽  
G. Heiler ◽  
T. Tredwell ◽  
M. Vieira ◽  
...  
Keyword(s):  
Thin Film ◽  
X Ray ◽  
X Ray Imaging

scholarly journals A Transparent Nano-Polycrystalline ZnWO4 Thin-Film Scintillator for High-Resolution X-ray Imaging

ACS Omega ◽  
2021 ◽  
Author(s):  
Heon Yong Jeong ◽  
Ju Hyuk Lee ◽  
Sang Yoon Lee ◽  
Jaewoo Lee ◽  
Sung Oh Cho
Keyword(s):  
Thin Film ◽  
High Resolution ◽  
X Ray ◽  
X Ray Imaging
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