Compact low-noise preamplifier for noise spectroscopy with biased photodiodes in cargo inspection systems

2013 ◽  
Author(s):  
Bob Benetti ◽  
Willem G. J. Langeveld
Keyword(s):  
Low Noise ◽  
Noise Spectroscopy ◽  
Cargo Inspection ◽  
Inspection Systems ◽  
Low Noise Preamplifier

scholarly journals Low-Frequency Noise and Microplasma Analysis for c-Si Solar Cell Characterization

2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
Jiří Vanek ◽  
Jan Dolensky ◽  
Zdenek Chobola ◽  
Mirek Luňák ◽  
Aleš Poruba
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Conversion Efficiency ◽  
Low Frequency ◽  
Low Noise ◽  
Frequency Noise ◽  
Noise Spectral Density ◽  
Selective Emitter ◽  
Noise Spectroscopy ◽  
Cell Conversion

This paper brings the comparison of solar cell conversion efficiency and results from a noise spectroscopy and microplasma presence to evaluate the solar cell technology. Three sets of monocrystalline silicon solar cells (c-Si) varying in front side phosphorus doped emitters were produced by standard screen-printing technique. From the measurements it follows that the noise spectral density related to defects is of 1/ftype and its magnitude. It has been established that samples showing low noise feature high-conversion efficiency. The best results were reached for a group solar cells with selective emitter structure prepared by double-phosphorus diffusion process.

Low-noise preamplifier based on PMT and its signal processing

2013 ◽  
Author(s):  
Li-hua Ye ◽  
Hai-yang Wang ◽  
Wen-xuan Wang ◽  
Yi-ping Cui ◽  
Jian-jun Hang ◽  
...  
Keyword(s):  
Signal Processing ◽  
Low Noise ◽  
Low Noise Preamplifier
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