PLASMA DIAGNOSTICS WITH SHORT ELECTROMAGNETIC PULSES

PDF Version Also Available for Download.

Description

The propagation of short electromagnetic pulses in an ionized medium and the reflection of transient pulses from bounded ionized regions is discussed. Analyticai expressions for transient oscillations in reflected and propagated electromagnetic fields excited by a unidirectional pulse are derived for certain simple cases. The transient oscillations show a periodicity that is directly related to the plasma frequency and are useful for nearly instantaneous plasma diagnostics. An experiment is described in which the reflection and transmission of unidirectional pulses of approximately 1-nanosecond duration is observed in the afterflow of a coaxial discharge tube. In addition to the dispersion of the ... continued below

Physical Description

Pages: 22

Creation Information

Schmitt, H.J. July 1, 1963.

Context

This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this report can be viewed below.

Who

People and organizations associated with either the creation of this report or its content.

Author

Publisher

Provided By

UNT Libraries Government Documents Department

Serving as both a federal and a state depository library, the UNT Libraries Government Documents Department maintains millions of items in a variety of formats. The department is a member of the FDLP Content Partnerships Program and an Affiliated Archive of the National Archives.

Contact Us

What

Descriptive information to help identify this report. Follow the links below to find similar items on the Digital Library.

Description

The propagation of short electromagnetic pulses in an ionized medium and the reflection of transient pulses from bounded ionized regions is discussed. Analyticai expressions for transient oscillations in reflected and propagated electromagnetic fields excited by a unidirectional pulse are derived for certain simple cases. The transient oscillations show a periodicity that is directly related to the plasma frequency and are useful for nearly instantaneous plasma diagnostics. An experiment is described in which the reflection and transmission of unidirectional pulses of approximately 1-nanosecond duration is observed in the afterflow of a coaxial discharge tube. In addition to the dispersion of the quasi TEM mode in the coaxial test tube, a transient oscillation with much lower periodicity is also observed and is interpreted as arising from a surface-wave propagating near the interface between glass walls and the annular ionized region. This surface-wave propagates only at frequencies below the plasma freguency of the ionized region, and its application for diagnostics of dense plasmas is indicated. (auth)

Physical Description

Pages: 22

Source

  • Other Information: Sandia Corp. Monograph. Orig. Receipt Date: 31-DEC-63

Language

Item Type

Identifier

Unique identifying numbers for this report in the Digital Library or other systems.

  • Report No.: SCR-692
  • Grant Number: AT(29-1)-789
  • DOI: 10.2172/4621277 | External Link
  • Office of Scientific & Technical Information Report Number: 4621277
  • Archival Resource Key: ark:/67531/metadc1033127

Collections

This report is part of the following collection of related materials.

Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

What responsibilities do I have when using this report?

When

Dates and time periods associated with this report.

Creation Date

  • July 1, 1963

Added to The UNT Digital Library

  • Oct. 18, 2017, 7:39 a.m.

Usage Statistics

When was this report last used?

Congratulations! It looks like you are the first person to view this item online.

Interact With This Report

Here are some suggestions for what to do next.

Start Reading

PDF Version Also Available for Download.

Citations, Rights, Re-Use

Schmitt, H.J. PLASMA DIAGNOSTICS WITH SHORT ELECTROMAGNETIC PULSES, report, July 1, 1963; United States. (digital.library.unt.edu/ark:/67531/metadc1033127/: accessed April 24, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.