Theoretical model of the modulation transfer function for fiber optic taper

2005 ◽  
Author(s):  
Yaoxiang Wang ◽  
Weijian Tian ◽  
XiangLi Bin
Keyword(s):  
Theoretical Model ◽  
Transfer Function ◽  
Modulation Transfer Function ◽  
Fiber Optic ◽  
Modulation Transfer

Light angular distribution and modulation transfer function of a fluorescent screen excited by an electron beam

1979 ◽  
Vol 57 (12) ◽  
pp. 2190-2193 ◽  
Author(s):  
G. E. Giakoumakis ◽  
C. D. Nomicos ◽  
P. C. Euthymiou
Keyword(s):  
Electron Beam ◽  
Angular Distribution ◽  
Theoretical Model ◽  
Transfer Function ◽  
Modulation Transfer Function ◽  
Experimental Results ◽  
Modulation Transfer ◽  
Grain Sizes ◽  
Phosphor Screen ◽  
Fluorescent Screen

The angular distribution of the light emitted from a ZnCdS(Ag) phosphor screen excited by an electron beam is measured for different thicknesses of the screen and for two grain sizes. This angular distribution is found to have a divergence from the Lambert law. A theoretical model is proposed leading to an equation fitting to the experimental results. Using this equation the modulation transfer function (MTF) of the screen was calculated.

Comparison of Optical and Scintillation Images Obtained by Using a Fiber-Optic Beta/Gamma Imaging Detector

2015 ◽  
Vol 1083 ◽  
pp. 137-141
Author(s):  
Seung Han Hong ◽  
Wook Jae Yoo ◽  
Sang Hun Shin ◽  
Hyeok In Sim ◽  
Seon Guen Kim ◽  
...  
Keyword(s):  
Transfer Function ◽  
Gamma Rays ◽  
Modulation Transfer Function ◽  
Gamma Ray ◽  
Fiber Optic ◽  
Region Of Interest ◽  
Modulation Transfer ◽  
Gamma Imaging ◽  
Optical Images ◽  
Imaging Detector

We developed a fiber-optic beta/gamma imaging detector that can obtain the scintillating images for beta-or gamma-ray emitted from the radioisotope. To evaluate spatial resolution of proposed imaging detector, we obtained the optical images using USAF 1951 resolution target. And then, a modulation transfer function curve of the optical image was calculated. Also, we measured the scintillating images of Tl-204 and Cs-137 with information respecting the beta-and gamma-rays distribution. Finally, the intensities of scintillating light as a function of radioactivity were analyzed from the region of interest in the scintillating image.

Novel methods for measuring modulation transfer function for fiber optic taper

2006 ◽  
Author(s):  
Wei Zhang ◽  
Yaoxiang Wang ◽  
Weijian Tian ◽  
Weihong Ma ◽  
Hongjian Zhang ◽  
...  
Keyword(s):  
Transfer Function ◽  
Modulation Transfer Function ◽  
Fiber Optic ◽  
Modulation Transfer ◽  
Novel Methods

Modulation transfer function of infrared focal plane arrays

2015 ◽  
Author(s):  
S. D. Gunapala ◽  
S. B. Rafol ◽  
D. Z. Ting ◽  
A. Soibel ◽  
C. J. Hill ◽  
...  
Keyword(s):  
Transfer Function ◽  
Modulation Transfer Function ◽  
Focal Plane ◽  
Focal Plane Arrays ◽  
Modulation Transfer ◽  
Infrared Focal Plane Arrays
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