On the Electric Breakdown in Liquid Argon at Centimeter Scale

We present a study on the dependence of electric breakdown discharge properties on electrode geometry and the breakdown field in liquid argon near its boiling point. The measurements were performed with a spherical cathode and a planar anode at distances ranging from 0.1 mm to 10.0 mm. A detailed study of the time evolution of the breakdown volt-ampere characteristics was performed for the first time. It revealed a slow streamer development phase in the discharge. The results of a spectroscopic study of the visible light emission of the breakdowns complement the measurements. The light emission from the initial phase of the discharge is attributed to electro-luminescence of liquid argon following a current of drifting electrons. These results contribute to set benchmarks for breakdown-safe design of ionization detectors, such as Liquid Argon Time Projection Chambers (LAr TPC).

The breakdown of IRS tax enforcement regarding multinational corporations : revenue losses, excessive litigation, and unfair burdens for U.S. producers : hearing before the Committee on Governmental Affairs, United States Senate, One Hundred Third Congress, first session, March 25, 1993.

Shipping list no.: 93-0404-P.

The effects of intense gamma irradiation on electric breakdown in helium /

"Physics Development Department, Tracerlab, Incorporated, Reactor Monitoring Center."

The efficiency of excitation of a surface wave on a dielectric cylinder /

Vita.

A practical interpretation of dielectric measurements up to 100-mc.

"PB 161545."

Illustrated parts breakdown : AN/GSC-24(V) multiplexer set 61860000.

"1 January 1976."

Operation and maintenance instructions with illustrated parts breakdown : air conditioner, type A/E32C-39, 54,000 Btu/hr, part no.'s 12090-601, 12090-602 ... American Air Filter Co., Inc. ... Engineered Air Systems, Inc. ....

"1 October 1982."

Operator, organizational, field, and DS & GS maintenance including repair parts and special tools lists (operation and maintenance instructions with illustrated parts breakdown) : T-4191 dial indicating depth gage.

Includes index.

Organizational/field/intermediate/DS, GS, and depot maintenance with illustrated parts breakdown : control, transponder set, C-6280(P)/APX, C-6280A(P)/APX, C-6717/APX, & C-7483/APX : Admiral aircraft radio.

"1 November 1969."

Organizational/intermediate maintenance with depot overhaul instructions and illustrated parts breakdown : transponder set test set TS-1843A/APX (P/N 01A233750-21-11, -12) (Stewart-Warner) (F33657-68-C-1265) (F33657-71-C-0752).

"15 February 1972."

Dielectric spectroscopy of high-temperture materials

Mode of access: Internet.

Dielectric measurements on high-temperature materials

Prepared by Massachusetts Institute of Technology, Laboratory for Insulation Research, under USAF Contract F33615-67C-1612.

Measurement of dielectric parameters of high-loss materials in distributed circuits.

"Prepared by the Massachusetts Institute of Technology, Laboratory for Insulation Research, Cambridge, Massachusetts, under USAF Contract AF 33(615)-2199."

Dimerlike positional correlation and resonant transmission of electromagnetic waves in aperiodic dielectric multilayers

In this paper, we investigate transmission of electromagnetic wave through aperiodic dielectric multilayers. A generic feature shown is that the mirror symmetry in the system can induce the resonant transmission, which originates from the positional correlations (for example, presence of dimers) in the system. Furthermore, the resonant transmission can be manipulated at a specific wavelength by tuning aperiodic structures with internal symmetry. The theoretical results are experimentally proved in the optical observation of aperiodic SiO2/TiO2 multilayers with internal symmetry. We expect that this feature may have potential applications in optoelectric devices such as the wavelength division multiplexing system.

Reducing the height of a circular array of monopoles using top hats and dielectric coatings

Using a Radial Guide Field Matching Method, an investigation is performed into reducing the height of an electronically steered circular array of monopole antennas composed of a central active element surrounded by passive elements being either short- or open-circuited. It is shown that a considerable height reduction can be achieved using top hats attached to monopoles ends and by applying dielectric coating underneath the top hats. The trade-off in achieving height reduction is narrower impedance bandwidth.