[Studies in the 11 Meter Range of Radio Astronomy Using High Resolution and High Sensitivity Antenna Arrays at Clark Lake]
Interplanetary scintillation observations from solar wind inhomogeneities
SOLAR WIND↗
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Observations of nuclei heavier than iron in the primary cosmic radiation
Charge and energy spectra of primary cosmic rays made with large area Cerenkov scintillation counter on baloon flights - heavier than iron nuclei
SPECTRAL ENERGY DISTRIBUTION↗
An upper limit on the quiet time solar neutron flux at energies greater than 60 MeV
Upper limit on quiet time solar neutron flux at energies above 60 MeV determined by using balloon flights with Cerenkov scintillation counters
CERENKOV COUNTER↗
Application of radioactive tracers in the investigation of shielding
Scintillation counters for measuring gamma radiation of tracers in nuclear reactor shielding studies
SCINTILLATION COUNTER↗
The gamma-spectrometer based on the formation of electron-positron pairs
Gamma scintillation spectrometer design based on electron-positron pair formation
SCINTILLATION SPECTROMETER↗
Gamma spectrometry with semiconductor detectors
Lithium drifted germanium and silicon semiconducting detectors compared with thallium activated sodium iodide crystal scintillation counter for gamma spectrometry
SODIUM IODIDE↗
Quasifree scattering of 160-Mev protons from nuclei.
Spectra of outgoing protons for various targets using scintillation counter, interpreting data by means of impulse-approximation calculation
SCATTERING CROSS SECTION↗
A measurement of the lifetime of the 14.4 kev level of super 57 Fe.
Measurement of half-life of 14.4 kev level of 57 Fe with scintillation detectors and digital timer
IRON 57↗
A zero-crossing pulse shape discriminator for space applications.
Circuit for discriminating neutrons, gammas and charged particles from each other in phoswich scintillator
FAST NEUTRON↗
Directional neutron spectrometer.
Directional neutron spectrometer for events in which neutron is scattered by first scintillator into second
NEUTRON SPECTROMETRY↗
Directional neutron detector for rocket and satellite experiments.
Directional neutron detector using liquid scintillator for low mev energy range for rocket and satellite experiments
ROCKET MEASUREMENT↗
Upper limits to the hard X-ray flux from the quiet sun and Jupiter.
Upper limits to hard X-ray flux from quiet sun analyzed by balloon-borne scintillation detector measuring celestial sources
BALLOON SOUNDING↗
A determination of the energy spectrum of extraterrestrial electrons in the energy range 70-2000 mev.
Atmospheric electron energy spectrum in range 70-2000 mev measured, using scintillation telescope with gas Cerenkov detector and lead glass total energy spectrometer
ELECTRON ENERGY↗
Energetic protons from the solar flare of March 24, 1966.
Energetic protons from March 24, 1966 solar flare observed with OGO 1 satellite scintillation counter
PROTON ENERGY↗
Pionic and muonic X rays in liquid helium.
Pionic and muonic K-series X-rays studied by liquid He scintillation counter, obtaining separation peaks
MUON↗
Planned operations for the JPL optical communications telescope laboratory (OCTL)
We shall perform a series of active satellite tracking experiments to develop atmospheric scintillation mitigation strategies.
telescope laser communications scintillation retro↗
Comment on: The Pioneer 6 Faraday Rotation Transients -- On the Interpretation of Coronal Faraday Rotation Data, by Patzold and Bird
The detection of coronal streamers in Doppler scintillation measurements revealed for the first time that variations in radio occultation measurements near the Sun could be caused by quasi-stationary raylike structures.
Faraday observation doppler scintillation coronal ↗
Development of Laser Beam Transmission Strategies for Future Ground-to-Space Optical Communications
Optical communications is a key technology to meet the bandwidth expansion required in the global information grid. High bandwidth bi-directional links between sub-orbital platforms and ground and space terminals can provide a seamless interconnectivity for rapid return of critical data to analysts. The JPL Optical Communications Telescope Laboratory (OCTL) is located in Wrightwood California at an altitude of 2.2.km. This 200 sq-m facility houses a state-of- the-art 1-m telescope and is used to develop operational strategies for ground-to-space laser beam propagation that include safe beam transmission through navigable air space, adaptive optics correction and multi-beam scintillation mitigation, and line of sight optical attenuation monitoring. JPL has received authorization from international satellite owners to transmit laser beams to more than twenty retro-reflecting satellites. This paper presents recent progress in the development of these operational strategies tested by narrow laser beam transmissions from the OCTL to retro-reflecting satellites. We present experimental results and compare our measurements with predicted performance for a variety of atmospheric conditions.
optical communications↗