Imaging Performance Evaluation for Fiber Optical Plates with Modulation Transfer Function

2002 ◽  
Author(s):  
Weijian Tian ◽  
Wei Zhang ◽  
Weihong Ma ◽  
Yaoxiang Wang ◽  
Yulin Li
Keyword(s):  
Performance Evaluation ◽  
Transfer Function ◽  
Modulation Transfer Function ◽  
Modulation Transfer ◽  
Fiber Optical ◽  
Imaging Performance

Investigation of Scintillation Screens for X-Ray Imaging

2006 ◽  
Vol 321-323 ◽  
pp. 1056-1059 ◽  
Author(s):  
Jung Min Kim ◽  
Ho Kyung Kim ◽  
Min Ho Cheong ◽  
Min Kook Cho ◽  
Cheol Soon Shon ◽  
...  
Keyword(s):  
Transfer Function ◽  
Modulation Transfer Function ◽  
Columnar Structure ◽  
Diagnostic Radiology ◽  
Modulation Transfer ◽  
X Ray ◽  
X Ray Imaging ◽  
Conventional Film ◽  
Wide Range ◽  
Imaging Performance

Terbium-doped gadolinium oxysulfide (Gd2O2S:Tb) phosphor screen is the most popular X-ray converter in diagnostic radiology. We have investigated the fundamental imaging performance of Gd2O2S:Tb screens in terms of X-ray sensitivity and MTF (modulation-transfer function). The measurements were performed for a wide range of coverages (34 – 135 mg/cm2) by using a conventional film radiographic method. In addition, CsI:Tl having columnar structure was also investigated.

Modulation Transfer Function for a Multichannel Laser Induced Fluorescence Analyzer and its Numerical Calculation

2007 ◽  
Vol 364-366 ◽  
pp. 1138-1141
Author(s):  
Yan Shi ◽  
Li Qiang Wang ◽  
Hua Zheng ◽  
Jie Wang ◽  
Zu Kang Lu
Keyword(s):  
Numerical Calculation ◽  
Transfer Function ◽  
Modulation Transfer Function ◽  
Laser Induced Fluorescence ◽  
Modulation Transfer ◽  
Simple Method ◽  
Full Field ◽  
Multichannel Laser ◽  
Imaging Performance ◽  
Fluorescence Analyzer

In this paper, the modulation transfer function with aberration of a multichannel laser induced fluorescence analyzer is presented. Based on an f-theta lens, the confocal system was used both to transform the exciting laser and to collect the fluorescence emitted from sample. The total MTF is the combination of that of both systems. A simple method for the numerical calculation of that was also given. From the calculating result we could conclude that the aberration had poor impact on the MTF of a confocal multichannel fluorescence analyzer and the imaging performance was uniform in the full field.

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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