Omegatron studies of a skimmed beam system.
Continuum source molecular beam facility, examining effect of source-skimmer distance variation on flux and spatial distribution of beam in collimation chamber downstream
MOLECULAR BEAM↗
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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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Local measurements in turbulent flows through cross correlation of optical signals
Crossed beam correlation method measures turbulent fluctuations in transonic and supersonic flows. Two collimated beams of radiation are crossed at the point of interest in the flow, and the power loss of each beam is measured with two independent photodetectors, which yield information about the turbulent properties.
Fisher, M. J.↗
Star/horizon simulator used to test space guidance system
Star/horizon simulator is used for alignment and optical plus photoelectric tests of the sextant for the Apollo guidance and navigation system optical unit assembly. The unit is basically a refractive collimator with a two inch objective lens system and a twenty-four inch focal length.
Schmidt, W. C.↗
Electron beam parallel X-ray generator
Broad X ray source produces a highly collimated beam of low energy X rays - a beam with 2 to 5 arc minutes of divergence at energies between 1 and 6 keV in less than 5 feet. The X ray beam is generated by electron bombardment of a target from a large area electron gun.
Payne, P.↗
Proposed method of rotary dynamic balancing by laser
Laser method, where high energies of monochromatic light can be precisely collimated to perform welding and machining processes, is proposed for rotary dynamic balancing. The unbalance, as detected with the velocity pickup, would trigger the laser system which would emit high energy pulses directed at the heavy side of the component.
Perkins, W. E.↗
Monitor senses amount of contamination deposited on surfaces
Monitoring device detects and indicates directly the amount of contamination deposited on a surface. It uses an optical system in conjunction with a reliable collimated light source and associated electronics. Change in its output signal is proportional to change in the optical absorption characteristics of the sample plate surface.
Sheehy, R. N.↗
A continuation of a program of high angular resolution studies of celestial X-ray sources Final report, Jul. 6 - Dec. 29, 1967
High angular resolution studies of celestial X ray sources and design of aspect camera, proportional collimators, telemetry, and attitude control systems
Source record↗
Energy-storage of a prescribed impedance
Reflector antenna of the parabolic type offers complete control of its aperature illumination function. The antennas beam width can be changed easily by excitation of various amounts of the line-source feed. The conical reflector collimates a beam when the feed complies with certain geometric constraints.
Seaton, A. F.↗
Method of directing a laser beam with very high accuracy
System will collimate and direct an argon laser beam with high angular tracking accuracy at objects on the moons surface. It can be adapted to missile and satellite tracking.
Allen, L. H.↗
Design and construction of the 15-ft-beam solar simulator SS15B
Design and performance of collimated beam solar simulator
Eddy, R. P.↗
The X-ray spectrum of Sco XR-1 to 100 kev.
Spectrum of high energy X ray flux from Sco XR- 1 during balloon flight using active collimator detector and graded shield detector
Davison, P. J. N.↗
A measurement of the diffuse cosmic X-ray background from 17 to 167 kev.
Diffuse cosmic X ray background measured during balloon flight with actively shielded and collimated detector
Thomas, R. M.↗
Limit on the angular size of Cyg XR-1.
X ray source Cyg XR-1 angular diameter upper limit determined from balloon experiment data obtained with collimated X ray telescopes
Floyd, F. W.↗
Refractive index of several glasses as a function of wavelength and temperature.
Refractive indices for various glasses obtained as function of wavelengths and temperature, using spectrometer as collimator
Neu, J. T.↗
Electron beam from a magnetoplasmadynamic arc.
Luminous tenuous collimated electron beam from plume of MPD arc in fiberglass vacuum tank, examining beam trajectory in geomagnetic fields
Ducati, A. C.↗
Diffusion filter eliminates fringe effects of coherent laser light source
Diffusion filter comprised of small particles in colloidal suspension reduces the coherence of a laser beam used as a photographic light source. Interference patterns which obscure details in photographic film are eliminated, the intensity and collimation are moderately affected.
Olsasky, M. J.↗
Ambient-light-absorbing screen for front projection
Screen permits front surface projection of collimated light beam under conditions of high extraneous illumination. Screen has high reflective efficiency over any desired viewing area. Its optical properties are maintained when moisture droplets are present on the external front planar surface. Surface is easily cleaned and maintained.
Hilborn, E. H.↗
Optical research facilities
Optical collimator for precision measurements in design, fabrication, and evaluation of systems and components
Pershing, W. R.↗