Detection of molecular infrared spectra

Total energy distribution measurements of field emitted electrons detect molecular infrared spectra of adsorbed molecules. Tunneling electron gives up energy to excite various modes of adsorbed molecule. These electrons, when energy-analyzed, show up on the collector and exhibit the spectra of various modes excited by tunneling electrons

Single crystal surface work function and desorption studies Final report

Single crystal surface work function and desorption studie

The stability of an air-maintained cavity behind a stationary object in flowing water

In studies made in the Free Surface Water Tunnel of a projectile running in an air-maintained cavity, the experimental relation between air entrainment rate and cavitation number was determined. The entrainment-rate coefficient CQ = Q/V0d^2, where Q is the air rate in cfs, V0 the free-stream velocity, and d the disk nose diameter, was plotted against cavitation parameter, K = (p0 - pk)/q0 where p0 is the free-stream pressure at the disk center line, pk the cavity pressure, and q0 the free-stream dynamic pressure. This experimental relationship for one single disc is shown for three different velocities in Fig. 1. The curves are similar in shape and each has a minimum value of entrainment coefficient which is designated by CQ^* at a value of K as designated as K^*

Investigation of electron emission characteristics of low work function surfaces Quarterly progress report no. 3, 1 Apr. - 30 Jun. 1965

Electron emission characteristics of low work function surfaces - total energy distributions for five crystallographic directions of tungste

Millimeter radiometer system technology

JPL has had a large amount of experience with spaceborne microwave/millimeter wave radiometers for remote sensing. All of the instruments use filled aperture antenna systems from 5 cm diameter for the microwave Sounder Units (MSU), 16 m for the microwave limb sounder (MLS) to 20 m for the large deployable reflector (LDR). The advantages of filled aperture antenna systems are presented. The requirements of the 10 m Geoplat antenna system, 10 m multified antenna, and the MLS are briefly discussed

Total energy distribution measurements of field emitted electrons Final report, 15 Nov. 1968 - 15 Dec. 1969

Total energy distribution of field emitted electrons with respect to adsorption effect

Fabrication and surface characterization of composite refractory compounds suitable for thermionic converters

Thermal faceting was observed for the high index planes of LaB6. The (100), (110), and (111) planes were found to be the most thermodynamically stable faces in vacuum in a study of electrode materials for thermionic emitters. The properties of adsorbed carbon, cesium, and cesium-oxygen layers were investigated on LaB6 single crystal surfaces as well as on Zr/0/W(100) and W(100). Cesium was found to increase electron reflection near the collision threshold on LaB6(100) and W(100) and to decrease the reflection on Zr/0/W(100). This difference may be explained by the unusually high threshold reflection coefficient of Zr/0/W without adsorbed cesium

Investigation of electron emission characteristics of low work function surfaces quarterly progress report no. 2, 28 dec. 1964 - 31 mar. 1965

Quality and stability of electron emission characteristics of low work function surfaces - tungste

Total Energy Distribution Measurements of Field Emitted Electrons Progress Report, 14 Feb. - 14 May 1968

Potential energy analyzer tube for measuring field emitted electrons from coated tungsten and molybdenum surface

Total energy distribution measurements of field emitted electrons Progress report, 15 May - 15 Sep. 1969

Fermi surfaces, Brillouin zones, and field energy distributions in band structures of rheniu