Observation of simultaneity in parametric production of optical photon pairs
Simultaneity in optical photon pairs parametric production, verifying quantum mechanical description of fluorescence
Burnham, D. C.↗
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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Operation of the Surveyor television system in the photon-integration mode
Surveyor 7 TV system in photon integration mode, analyzing slow scan vidicon storage characteristics and dark current limitations
Allen, L. H.↗
Search for short pulses of energetic photons from supernovae using the atmospheric fluorescence
Atmospheric fluorescence observation of supernova energetic photon short pulse burst, using photomultiplier
Bertsch, D.↗
The response of phosphor-output image intensifiers to single-photon inputs
Phosphor-output image intensifier response to single photon inputs in multichannel spectrophotometer for faint optical sources
Mcnall, J.↗
Response of superconducting weak links to photons
Radiation detectors with superconducting weak links response to single photons, considering Mercereau ring interferometer
Chiao, R. Y.↗
Nuclear rocket shielding methods, modification, updating, and input data preparation. Volume 2 - Compilation of neutron and photon cross section data Final progress report
Compilation of neutron and photon cross section data using computer programs developed for nuclear rocket shielding methods, modification, updating, and input data preparation - Vol. 2
Disney, R. K.↗
Astrophysical exclusion of photon-neutrino weak coupling
Photon-neutrino coupling theory of weak interactions, noting exclusion by astrophysical data for white dwarfs
Stothers, R. B.↗
Neutrino-pair production by photons
Cross section for electron and muon neutrino- antineutrino pair production by photons, using intermediate boson theory
Landovitz, L. F.↗
Use of photomultiplier tubes for photon counting
Critique on photomultiplier tube for photon counting, considering pulse height distribution, SNR and electron collection efficiency errors
Young, A. T.↗
Secondary electrons and photons in the upper atmosphere
Secondary electrons and photons energy spectra and depth dependence in upper atmosphere from numerical solution of one dimensional transport equations
Beuermann, K. P.↗
Collision rates in photon and relativistic- particle gases
Collision rates in photon and relativistic particle gases, noting importance for cosmic radio and X ray sources processes calculations
Gould, R. J.↗
On the absorption of gamma rays by photons in pulsars, quasi-stellar objects, and other source objects
Quasar and pulsar gamma ray absorption by critical energy collisions with low energy photons
Guthrie, P. D.↗
Photon induced secondary electron emission
Numerical models for predicting photon-induced secondary electron emission are presented. The results are compared with experimental measurements made using a Co-60 gamma ray source.
Spencer, R. B.↗
Lunar laser ranging data deposited in the National Space Science Data Center: Filtered observations for September 1969 through June 1970 and unfiltered photon detections for July through December 1970
The technique of laser ranging to a reflector fixed on the lunar surface is discussed. The causes for initial low rate of data acquisition are explained. The documentation to be used in conjunction with the deposition of the filtered data in the National Space Science Data Center are documented. Filtered data obtained during laser operations between the McDonald Observatory and the reflector at Tranquility Base during the interval September 1969 through June 1970 are presented. The unfiltered photon detections for the succeeding six months are examined.
Mulholland, J. D.↗
Measurement of the light-field amplitude-correlation function through joint photon-count distributions.
When an amplitude-stabilized He-Ne laser beam is scattered by a rotating ground glass with small surface inhomogeneities, the probability density of the instantaneous scattered-wave amplitude is Gaussian. In this paper, we suggest the use of the joint photon-count probability distribution to measure the absolute value of the electric-field amplitude-correlation function for random Gaussian light fields, and report the results of an experiment in which the Gaussian field is produced by scattering a light beam through a rotating ground glass. This procedure offers an alternative to other conventional methods, such as self-beating spectroscopy and irradiance-correlation techniques. The correlation time of the scattered-field amplitude in the present experiment has been measured with an accuracy of approximately 0.8%.
Furcinitti, P.↗
The ultrahigh energy photon spectrum
Results are made of a numerical calculation of the ultrahigh energy photon spectrum. After assuming that the ultrahigh energy cosmic-ray nucleons are universal, calculations are made without resorting to the previously employed delta function approximation.
Stecker, F. W.↗
Lunar laser ranging data deposited in the National Space Science Data Center: Filtered observations for January - June 1971 and unfiltered photon detections for July - December 1971
The filtered data are discussed which were obtained during laser ranging operations with Apollo reflectors placed on the moon at Tranquility Base, Fra Mauro, and Hadley. Unfiltered photon detections are described.
Mulholland, J. D.↗
An electrophotometer operating in a photon-counting regime
A photon counter photometer constructed allows one to carry out the UBV - photometry of stars from 6.0 to 14.0 stellar magnitude with the accuracy of 0.007 to 0.017 stellar magnitude. The absorption coefficients in U, B, V are determined and the color equations for transferring the observed magnitude differences to the UBV system are found.
Pugach, A. F.↗