Prototype high detective quantum efficiency imaging panel based on a fiber-optic scintillation glass array (FOSGA) for megavoltage imaging

2011 ◽  
Author(s):  
Sanjiv Samant ◽  
Jim Baciak ◽  
Arun Gopal
Keyword(s):  
Quantum Efficiency ◽  
Fiber Optic ◽  
Detective Quantum Efficiency ◽  
Megavoltage Imaging

scholarly journals Determination of the detective quantum efficiency of a prototype, megavoltage indirect detection, active matrix flat-panel imager

2001 ◽  
Vol 28 (12) ◽  
pp. 2538-2550 ◽  
Author(s):  
Youcef El-Mohri ◽  
Kyung-Wook Jee ◽  
Larry E. Antonuk ◽  
Manat Maolinbay ◽  
Qihua Zhao
Keyword(s):  
Quantum Efficiency ◽  
Indirect Detection ◽  
Detective Quantum Efficiency ◽  
Flat Panel ◽  
Active Matrix

A detective quantum efficiency for spectroscopic X‐ray imaging detectors

2021 ◽  
Author(s):  
Jesse Tanguay ◽  
Devon Richtsmeier ◽  
Christopher Dydula ◽  
James A. Day ◽  
Kris Iniewski ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
Detective Quantum Efficiency ◽  
X Ray ◽  
X Ray Imaging ◽  
Imaging Detectors

Intensity Calibration and Sensitivity Comparisons for CCD/Raman Spectrometers

1993 ◽  
Vol 47 (12) ◽  
pp. 1965-1974 ◽  
Author(s):  
Mark Fryling ◽  
Christopher J. Frank ◽  
Richard L. McCreery
Keyword(s):  
Quantum Efficiency ◽  
Figure Of Merit ◽  
Instrumental Response ◽  
Fiber Optic ◽  
Collection Efficiency ◽  
Signal To Noise Ratio ◽  
Quantitative Comparison ◽  
Sample Position ◽  
Fiber Output ◽  
Photodiode Arrays

A calibrated tungsten source combined with a fiber optic was used to correct Raman spectra for instrumental response. With the placement of the fiber output at the Raman sample position, the product of throughput, collection efficiency, quantum efficiency, and sampled area could be assessed. This product is related to a spectrometer figure of merit, which provides a quantitative comparison of spectrometer sensitivity and signal-to-noise ratio. Four spectrometer configurations were compared to illustrate the approach. An additional feature of the white light calibration is correction of relative Raman peak intensities. This issue is particularly important due to the substantial differences between CCD quantum efficiency curves and those of photomultipliers or intensified photodiode arrays.

Sign in / Sign up

Export Citation Format

Share Document