Particle measurements with liquid-borne particle counters: Effects of Counting Efficiency

2017 ◽  
Author(s):  
Bin Liu ◽  
Shi Liu
Keyword(s):  
Counting Efficiency ◽  
Particle Measurements

Collection and counting efficiency

2017 ◽  
Author(s):  
A. G. Wright
Keyword(s):  
Quantum Efficiency ◽  
Standard Method ◽  
Shot Noise ◽  
Count Rate ◽  
Detection Efficiency ◽  
Collection Efficiency ◽  
Counting Efficiency ◽  
Single Electron ◽  
Anode Current ◽  
Secondary Electrons

Standards laboratories can provide a photocathode calibration for quantum efficiency, as a function of wavelength, but their measurements are performed with the photomultiplier operating as a photodiode. Each photoelectron released makes a contribution to the photocathode current but, if it is lost or fails to create secondary electrons at d1, it makes no contribution to anode current. This is the basis of collection efficiency, F. The anode detection efficiency, ε‎, allied to F, refers to the counting efficiency of output pulses. The standard method for determining F involves photocurrent, anode current, count rate, and the use of highly attenuating filters; F may also be measured using methods based on single-electron responses (SERs), shot noise, or the SER at the first dynode.

FINE PARTICLE MEASUREMENTS IN TWO THERMAL POWER PLANTS

2001 ◽  
Vol 32 ◽  
pp. 31-32
Author(s):  
J. HOKKINEN ◽  
J. LYYRÄNEN ◽  
U. BACKMAN ◽  
J. JOKINIEMI
Keyword(s):  
Fine Particle ◽  
Power Plants ◽  
Thermal Power ◽  
Thermal Power Plants ◽  
Particle Measurements

Long-term particle measurements in Finnish Arctic: Part II – Trend analysis and source location identification

2014 ◽  
Vol 88 ◽  
pp. 285-296 ◽  
Author(s):  
James R. Laing ◽  
Philip K. Hopke ◽  
Eleanor F. Hopke ◽  
Liaquat Husain ◽  
Vincent A. Dutkiewicz ◽  
...  
Keyword(s):  
Trend Analysis ◽  
Source Location ◽  
Particle Measurements ◽  
Location Identification

scholarly journals Recent Particle Measurements from Voyagers 1 and 2

2015 ◽  
Vol 577 ◽  
pp. 012006 ◽  
Author(s):  
R B Decker ◽  
S M Krimigis ◽  
E C Roelof ◽  
M E Hill
Keyword(s):  
Particle Measurements
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