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Title: Plasma momentum meter for momentum flux measurements

Abstract

Invention comprises an instrument in which momentum flux onto a biasable target plate is transferred via a suspended quartz tube onto a sensitive force transducer--a capacitance-type pressure gauge. The transducer is protected from thermal damage, arcing and sputtering, and materials used in the target and pendulum are electrically insulating, rigid even at elevated temperatures, and have low thermal conductivity. The instrument enables measurement of small forces (10.sup.-5 to 10.sup.3 N) accompanied by high heat fluxes which are transmitted by energetic particles with 10's of eV of kinetic energy in a intense magnetic field and pulsed plasma environment.

Inventors:
 [1];  [2];  [3];  [4]
  1. (Rome, IT)
  2. (Hopewell, NJ)
  3. (Princeton, NJ)
  4. (Allentown, NJ)
Issue Date:
Research Org.:
Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ
OSTI Identifier:
868900
Patent Number(s):
5239563
Assignee:
United States of America as represented by United States (Washington, DC) PPPL
DOE Contract Number:  
AC02-76CH03073
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
plasma; momentum; meter; flux; measurements; comprises; instrument; biasable; target; plate; transferred; via; suspended; quartz; tube; sensitive; force; transducer-a; capacitance-type; pressure; gauge; transducer; protected; thermal; damage; arcing; sputtering; materials; pendulum; electrically; insulating; rigid; elevated; temperatures; conductivity; enables; measurement; forces; 10; -5; accompanied; heat; fluxes; transmitted; energetic; particles; kinetic; energy; intense; magnetic; field; pulsed; environment; thermal damage; heat flux; electrically insulating; elevated temperatures; thermal conductivity; magnetic field; elevated temperature; kinetic energy; pressure gauge; force transducer; momentum flux; energetic particles; pulsed plasma; quartz tube; target plate; type pressure; /376/73/

Citation Formats

Zonca, Fulvio, Cohen, Samuel A., Bennett, Timothy, and Timberlake, John R. Plasma momentum meter for momentum flux measurements. United States: N. p., 1993. Web.
Zonca, Fulvio, Cohen, Samuel A., Bennett, Timothy, & Timberlake, John R. Plasma momentum meter for momentum flux measurements. United States.
Zonca, Fulvio, Cohen, Samuel A., Bennett, Timothy, and Timberlake, John R. Fri . "Plasma momentum meter for momentum flux measurements". United States. https://www.osti.gov/servlets/purl/868900.
@article{osti_868900,
title = {Plasma momentum meter for momentum flux measurements},
author = {Zonca, Fulvio and Cohen, Samuel A. and Bennett, Timothy and Timberlake, John R.},
abstractNote = {Invention comprises an instrument in which momentum flux onto a biasable target plate is transferred via a suspended quartz tube onto a sensitive force transducer--a capacitance-type pressure gauge. The transducer is protected from thermal damage, arcing and sputtering, and materials used in the target and pendulum are electrically insulating, rigid even at elevated temperatures, and have low thermal conductivity. The instrument enables measurement of small forces (10.sup.-5 to 10.sup.3 N) accompanied by high heat fluxes which are transmitted by energetic particles with 10's of eV of kinetic energy in a intense magnetic field and pulsed plasma environment.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {1}
}

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