scholarly journals Development of a novel high quantum efficiency MV x‐ray detector for image‐guided radiotherapy: A feasibility study

2019 ◽  
Vol 47 (1) ◽  
pp. 152-163
Author(s):  
Jian Liu ◽  
Yuan Xu ◽  
Aram Teymurazyan ◽  
Zisis Papandreou ◽  
Geordi Pang
Keyword(s):  
Quantum Efficiency ◽  
Feasibility Study ◽  
High Quantum Efficiency ◽  
Image Guided Radiotherapy ◽  
X Ray ◽  
Image Guided ◽  
High Quantum

scholarly journals A Novel High Quantum Efficiency MV X-Ray Detector For Image-Guided Radiotherapy

2021 ◽  
Author(s):  
Jian Liu
Keyword(s):  
Quantum Efficiency ◽  
Spatial Resolution ◽  
Signal To Noise Ratio ◽  
High Quantum Efficiency ◽  
Image Guided Radiotherapy ◽  
X Ray ◽  
Image Guided ◽  
High Quantum ◽  
Prototype Detector ◽  
Scintillating Fibers

To develop a new MV x-ray detector with a high quantum efficiency and an adequate spatial resolution for image-guided radiotherapy, scintillating fibers with a diameter of 1 mm were embedded in lead to form a honeycomb pattern with a thickness of 2 cm. The properties of the detector were measured using a 6 MV beam on a Linac machine. The prototype detector has a quantum efficient of 35%, about an order of magnitude higher than that of current detectors used in the clinic. The spatial resolution of the prototype is comparable to that of video-based electronic portal imaging systems. The prototype detector can also suppress scattered signals which will help to improve the signal to noise ratio of the image. This work indicates that using scintillating fibers to generate and guide imaging signals, it is possible to increase the quantum efficiency and maintain an adequate spatial resolution for MV x-ray imaging.

scholarly journals A Novel High Quantum Efficiency MV X-Ray Detector For Image-Guided Radiotherapy

2021 ◽  
Author(s):  
Jian Liu
Keyword(s):  
Quantum Efficiency ◽  
Spatial Resolution ◽  
Signal To Noise Ratio ◽  
High Quantum Efficiency ◽  
Image Guided Radiotherapy ◽  
X Ray ◽  
Image Guided ◽  
High Quantum ◽  
Prototype Detector ◽  
Scintillating Fibers

To develop a new MV x-ray detector with a high quantum efficiency and an adequate spatial resolution for image-guided radiotherapy, scintillating fibers with a diameter of 1 mm were embedded in lead to form a honeycomb pattern with a thickness of 2 cm. The properties of the detector were measured using a 6 MV beam on a Linac machine. The prototype detector has a quantum efficient of 35%, about an order of magnitude higher than that of current detectors used in the clinic. The spatial resolution of the prototype is comparable to that of video-based electronic portal imaging systems. The prototype detector can also suppress scattered signals which will help to improve the signal to noise ratio of the image. This work indicates that using scintillating fibers to generate and guide imaging signals, it is possible to increase the quantum efficiency and maintain an adequate spatial resolution for MV x-ray imaging.

scholarly journals High-exposure-durability, high-quantum-efficiency (>90%) backside-illuminated soft-X-ray CMOS sensor

2019 ◽  
Vol 13 (1) ◽  
pp. 016502 ◽  
Author(s):  
Tetsuo Harada ◽  
Nobukazu Teranishi ◽  
Takeo Watanabe ◽  
Quan Zhou ◽  
Jan Bogaerts ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
High Exposure ◽  
High Quantum Efficiency ◽  
X Ray ◽  
High Quantum ◽  
Cmos Sensor ◽  
Backside Illuminated

A feasibility study for image guided radiotherapy using low dose, high speed, cone beam X-ray volumetric imaging

2005 ◽  
Vol 77 (1) ◽  
pp. 45-52 ◽  
Author(s):  
Jonathan R. Sykes ◽  
Ali Amer ◽  
Jadwiga Czajka ◽  
Christopher J. Moore
Keyword(s):  
Feasibility Study ◽  
High Speed ◽  
Low Dose ◽  
Cone Beam ◽  
Image Guided Radiotherapy ◽  
Volumetric Imaging ◽  
X Ray ◽  
Image Guided

Segmented crystalline scintillators: An initial investigation of high quantum efficiency detectors for megavoltage x-ray imaging

2005 ◽  
Vol 32 (10) ◽  
pp. 3067-3083 ◽  
Author(s):  
Amit Sawant ◽  
Larry E. Antonuk ◽  
Youcef El-Mohri ◽  
Qihua Zhao ◽  
Yixin Li ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
High Quantum Efficiency ◽  
X Ray ◽  
Initial Investigation ◽  
High Quantum ◽  
X Ray Imaging

CCD Based X-ray Detectors

1990 ◽  
Vol 34 ◽  
pp. 357-362 ◽  
Author(s):  
Mark W. Tate
Keyword(s):  
Synchrotron Radiation ◽  
Quantum Efficiency ◽  
Low Noise ◽  
X Ray Diffraction ◽  
High Quantum Efficiency ◽  
X Ray ◽  
High Quantum ◽  
Radiation Sources ◽  
Technology Improvement ◽  
Detector Technology

The advent of intense synchrotron radiation sources for X-ray diffraction has made many otherwise difficult experiments feasible. The increased intensity will not he fully utilized, however, unless there are farther developments in detector technology. Improvement in detector characteristics will, of course, aid those using laboratory sources as well. For instance, construction of low noise, high, quantum efficiency detectors will reduce integration times and enable one to detect weak signals.

scholarly journals Segmented phosphors: MEMS-based high quantum efficiency detectors for megavoltage x-ray imaging

2005 ◽  
Vol 32 (2) ◽  
pp. 553-565 ◽  
Author(s):  
Amit Sawant ◽  
Larry E. Antonuk ◽  
Youcef El-Mohri ◽  
Yixin Li ◽  
Zhong Su ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
High Quantum Efficiency ◽  
X Ray ◽  
High Quantum ◽  
X Ray Imaging
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