The response characterization of GafchromicTM EBT2 film to ultraviolet radiation of short wavelength (UVC)

2021 ◽  
Author(s):  
Hala I. El-Naggar ◽  
Mahmoud El Ghazaly ◽  
Tarek Talaat Salama ◽  
Mahmoud S. Dawood
2020 ◽  
Vol 20 (5) ◽  
pp. 3283-3286 ◽  
Author(s):  
Yuehua An ◽  
Xia Shen ◽  
Yuying Hao ◽  
Pengfei Guo ◽  
Weihua Tang

Conductive filament mechanism can explain major resistance switching behaviors. The forming/deforming of the filaments define the high/low resistance states. The ratio of high/low resistance depends on the characterization of the filaments. In many oxide systems, the oxygen vacancies are important to forming the conductive filaments for the resistance switching behaviors. As ultrawide band gap semiconductor, Ga2O3 has very high resistance for its high resistance state, while its low resistive state has relative high resistance, which normally results in low ratio of high/low resistance. In this letter, we report a high ratio of high/low resistance by ultraviolet radiation. The I–V characteristics of Au/Ti/β-Ga2O3/W sandwich structure device shows that the HRS to LRS ratio of 5 orders is achieved.


2019 ◽  
Vol 140 (2) ◽  
pp. 95-101 ◽  
Author(s):  
Ido Perlman ◽  
Mineo Kondo ◽  
Enid Chelva ◽  
Anthony G. Robson ◽  
Graham E. Holder

AbstractThe International Society for Clinical Electrophysiology of Vision (ISCEV) standard for full-field electroretinography (ERG) describes a minimum procedure for testing generalized retinal function but encourages more extensive testing. This extended protocol describes a method of assessing the function of the short-wavelength-sensitive cone (S-cone) retinal pathway, using a short-wavelength flash superimposed on a background that saturates the rods and adapts the L/M-cones to elicit a response, known as the S-cone ERG. Stimulus parameters such as the strength and luminance of the flash and background, respectively, and their spectral and temporal characteristics are specified. As a complement to the ISCEV standard, testing the S-cone ERG enables further characterization of light-adapted retinal function and may refine diagnosis of some retinal disorders. Typical applications are described including use in the diagnosis of rod monochromacy and S-cone monochromacy, identification and investigation of cone On-bipolar cell dysfunction and use of the technique to confirm the diagnosis of enhanced S-cone syndrome.


Author(s):  
М. М. Rasulov ◽  
I. G. Motorina ◽  
G. G. Yushkov ◽  
V. V. Igumen’shcheva ◽  
N. A. Malyshkina ◽  
...  

1956 ◽  
Vol 34 (10) ◽  
pp. 1038-1045 ◽  
Author(s):  
G. R. Bainbridge ◽  
W. A. Prowse

The sparking probability of a test gap, to which short-duration direct high voltage pulses are applied, is shown to depend on the distance of the gap from a source of short wavelength, ultraviolet radiation. The radiation is restricted to a small volume of gas midway between the electrodes. The sparking probability can therefore be used as a parameter in examining the absorption of the radiation responsible for triggering a discharge in the gas. Absorption of ultraviolet radiation by the gases argon, air, nitrogen, and oxygen has been studied.


2014 ◽  
Vol 176 (3-4) ◽  
pp. 363-369 ◽  
Author(s):  
P. Khosropanah ◽  
T. Suzuki ◽  
R. A. Hijmering ◽  
M. L. Ridder ◽  
M. A. Lindeman ◽  
...  

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