Parameters of the optical properties of the lunar surface powder in relation to solar-wind bombardment.
Optical properties of moon quantitatively compared with powder samples, bombarded with ions from hydrogen discharge plasma
SOLAR WIND↗
SEARCH · Search NASA
Results for “bombardment”
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.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Performance of a cesium bombardment ion engine with a self-rectifying discharge and automatic controls.
Cesium bombardment ion engine performance, giving starting circuit and automatic discharge power control system
PROPULSION SYSTEM PERFORMANCE↗
LM cathode electron-bombardment thrusters.
Liquid metal cathode electron bombardment thrustor operable at high temperatures, noting stability in neutralizer current range
CATHODE↗
Ion-bombardment level-crossing spectroscopy.
Ion bombardment excitation used to extend excited state range for level crossing spectroscopy studies, giving Zeeman energy level diagram
EXCITED STATE↗
Neutron and proton spectra from targets bombarded by 160-Mev protons.
Secondary neutron spectral data measured by proton recoil spectrometer from targets bombarded by 160 Mev protons
NEUTRON SPECTRUM↗
ANALYTIC CONSIDERATIONS RELATED TO THE LEWIS TYPE BOMBARDMENT ION ENGINE
Plasma theory of lewis type bombardment ion engine
IONIC PROPULSION↗
BEAM NEUTRALIZATION TESTS OF A FLIGHT MODEL ELECTRON BOMBARDMENT ENGINE
Beam neutralization tests of a flight model electron bombardment engine
FLIGHT TEST↗
Modification of the lunar surface by the solar-wind bombardment
Solar wind bombardment of lunar surface - simulation with hydrogen ion beam
LUNAR SURFACE↗
Dust bombardment on the lunar surface.
Flux of planetary dust particles bombarding lunar surface and effects on accretion processes and dendroid layer formation
HYPERVELOCITY IMPACT↗
Electron bombardment improves vacuum chamber efficiency
Bombardment of vacuum chamber walls by an electron gun within the chamber achieves greater efficiency with less cost. The ultimate vacuum reached using the gun is greater than the system design level.
Przybyszewski, J.↗
Damage to germanium due to 22 and 40 mev proton bombardments
Proton bombardment damage to single crystal germanium
PROTON IRRADIATION↗
Solar-wind bombardment of a surface in space
The solar wind is described and its effects on surfaces are reviewed. Experimental results are given for materials subjected to simulated solar-wind bombardment. Among the effects discussed are sputtering-type erosion, chemical reaction with paint vehicles and reduction of oxide pigments, and production of lunar-surface optical characteristics in a basalt powder.
SOLAR WIND↗
Production of aluminum hydride by hydrogen-ion bombardment.
Aluminum hydride production by high energy deuteron bombardment of ultrapure aluminum
X-RAY DIFFRACTION↗
Absolute photon yields of light elements by deuteron bombardment
Absolute measurements of K X-ray quantum yields resulting from deuteron bombardment of thick targets containing carbon and boron
X-RAY↗
Effects of simulated solar-wind bombardment on spacecraft thermal control surfaces.
Spacecraft thermal control surface damage by solar wind bombardment in hydrogen and helium plasmas, with measurements of solar spectral reflectance and thermal emittance
PROTECTIVE COATING↗
Secondary ionization processes due to proton bombardment in aurorae.
Proton bombardment for generation of polar glow aurora
PROTON IRRADIATION↗
Effects of simulated solar-wind bombardment on spacecraft thermal control surfaces.
Spacecraft thermal control surface damage by solar wind bombardment in hydrogen and helium plasmas, with measurements of solar spectral reflectance and thermal emittance
TEMPERATURE CONTROL↗
The Operation of an Electron-Bombardment Ion Source with Various Gases
The efficiency of the electron-bombardment thrustor is approaching the maximum that can be expected. Desired lifetimes (of the order of 10,000 hr) have not yet been reached, but present knowledge indicates such lifetimes should be obtainable, The simplicity of this thrustor makes it interesting as an ion source for various laboratory experiments. Various gases have been used to determine the ion-chamber and accelerator performance for such applications.
Reader, Paul D.↗