A single-photon counting astronomical spectrophotometer.
Single photon counting astronomical spectrophotometer to take advantage of increased information rate obtainable
Tull, R. G.↗
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Linear-log counting-rate meter uses transconductance characteristics of a silicon planar transistor
Counting rate meter compresses a wide range of data values, or decades of current. Silicon planar transistor, operating in the zero collector-base voltage mode, is used as a feedback element in an operational amplifier to obtain the log response.
Eichholz, J. J.↗
Direct determination of lead-210 by liquid-scintillation counting
Soft betas, the internal conversion electrons, and unconverted gamma rays from lead-210 are efficiently detected in a liquid scintillation counting system with efficiency of 97 percent. The counter is interfaced with a multichannel pulse height analyzer. The spectra obtained is stored on paper tape and plotted on an x-y plotter.
Fairman, W. D.↗
Highly stable high-rate discriminator for nuclear counting
Pulse amplitude discriminator is specially designed for nuclear counting applications. At very high rates, the threshold is stable. The output-pulse width and the dead time change negligibly. The unit incorporates a provision for automatic dead-time correction.
English, J. J.↗
Lunar crater counts. 3 - Post Mare and ''Archimedian'' variations
Density variation data for lunar crater count
Hartmann, W. K.↗
Photon statistics for threshold laser light with finite counting time
Correlations of intensity fluctuations for threshold laser light with finite counting times
Chang, R. F.↗
Lunar crater counts. IV - Mare Orientale and its basin system.
Lunar crater count observations of mare surface and ejecta blanket in Orientale basin
Hartmann, W. K.↗
Quantum theory of an optical maser. III - Theory of photoelectron counting statistics.
Quantum mechanics method for obtaining photocount distribution from optical maser photoelectron counting statistics
Lamb, W. E., Jr.↗
Apparatus for simultaneous ion counting and current recording in mass spectrometry
Ion counting system is coupled to the last dynode of an Allen-type electron multiplier on the mass analyzer of a double focusing mass spectrometer. This leaves the anode available for an electrometer, making possible simultaneous measurements. Coupling is achieved by a ferrite core transformer and associated circuitry.
Kohl, F. J.↗
A cold cathode ion source mass spectrometer employing ion counting techniques
Design and construction of mass spectrometer using cold cathode source of ions, quadrupole mass analyzer, and ion counting detectors
Blum, P.↗
Exponential decontamination models for count data
Exponential decontamination models for count data
Bansal, A. K.↗
The use of single photon counting methods in solving basic problems in chemiluminescent reactions
Single photon counting and fast coincidence system in nuclear physics experiment involving two body luminescent reaction
Emerson, J. A.↗
Environmental control low level radiation counting facility of the lunar receiving laboratory
Environmental control underground low level radiation counting facility of Lunar Receiving Laboratory for gamma ray spectrometry, including radon adsorption system
Anderson, W. C.↗
Intensity correlations in optical nonlinear processes by photon counting techniques
Intensity correlations in optical parametric noise and second harmonic generation measured by two photon delayed coincidence counting
Davidson, F.↗
A readily implemented single-error-correcting unit-distance counting code
Unit distance redundant counting code for single error correction or double error detection with digital equipment simplicity advantages
Kautz, W. H.↗
Effects of hyperoxia on white blood cells. I - In vivo changes in the total white blood cell counts of normal rats
Hyperoxia effects on rats in vivo white blood cell counts
Brubaker, L. H.↗
Photon counting - A problem in classical noise theory
Quantum detector with impinging EM field, discussing photoelectron counting distribution and signal with white noise
Clark, J. R.↗
Research and development program on the use of counting techniques
Reducing noise in multiplier of quadrupole mass spectrometer when operating in ion counting mode
Roehrig, J. R.↗