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Title: Use of .sup.3 He.sup.30 + ICRF minority heating to simulate alpha particle heating

Abstract

Neutron activation due to high levels of neutron production in a first heated deuterium-tritium plasma is substantially reduced by using Ion Cyclotron Resonance Frequency (ICRF) heating of energetic .sup.3 He.sup.++ ions in a second deuterium-.sup.3 He.sup.++ plasma which exhibit an energy distribution and density similar to that of alpha particles in fusion reactor experiments to simulate fusion alpha particle heating in the first plasma. The majority of the fast .sup.3 He.sup.++ ions and their slowing down spectrum can be studied using either a modulated hydrogen beam source for producing excited states of He.sup.+ in combination with spectrometers or double charge exchange with a high energy neutral lithium beam and charged particle detectors at the plasma edge. The maintenance problems thus associated with neutron activation are substantially reduced permitting energetic alpha particle behavior to be studied in near term large fusion experiments.

Inventors:
 [1];  [2];  [3]
  1. (Belle Mead, NJ)
  2. Lawrencevill, NJ
  3. Plainsboro, NJ
Issue Date:
Research Org.:
Princeton Univ., NJ (United States)
OSTI Identifier:
865820
Patent Number(s):
4584161
Application Number:
06/552,532
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05H - PLASMA TECHNIQUE
DOE Contract Number:  
AC02-76CH03073
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
30; icrf; minority; heating; simulate; alpha; particle; neutron; activation; due; levels; production; heated; deuterium-tritium; plasma; substantially; reduced; cyclotron; resonance; frequency; energetic; deuterium-; exhibit; energy; distribution; density; similar; particles; fusion; reactor; experiments; majority; fast; slowing; spectrum; studied; modulated; hydrogen; beam; source; producing; excited; combination; spectrometers; double; charge; exchange; neutral; lithium; charged; detectors; edge; maintenance; associated; permitting; behavior; near; term; particle detectors; substantially reduced; fusion reactor; charged particle; beam source; energy distribution; cyclotron resonance; alpha particle; alpha particles; particle detector; substantially reduce; resonance frequency; charge exchange; energy neutral; energetic alpha; /376/

Citation Formats

Post, Jr., Douglass E., Hwang, David Q, and Hovey, Jane. Use of .sup.3 He.sup.30 + ICRF minority heating to simulate alpha particle heating. United States: N. p., 1986. Web.
Post, Jr., Douglass E., Hwang, David Q, & Hovey, Jane. Use of .sup.3 He.sup.30 + ICRF minority heating to simulate alpha particle heating. United States.
Post, Jr., Douglass E., Hwang, David Q, and Hovey, Jane. Tue . "Use of .sup.3 He.sup.30 + ICRF minority heating to simulate alpha particle heating". United States. https://www.osti.gov/servlets/purl/865820.
@article{osti_865820,
title = {Use of .sup.3 He.sup.30 + ICRF minority heating to simulate alpha particle heating},
author = {Post, Jr., Douglass E. and Hwang, David Q and Hovey, Jane},
abstractNote = {Neutron activation due to high levels of neutron production in a first heated deuterium-tritium plasma is substantially reduced by using Ion Cyclotron Resonance Frequency (ICRF) heating of energetic .sup.3 He.sup.++ ions in a second deuterium-.sup.3 He.sup.++ plasma which exhibit an energy distribution and density similar to that of alpha particles in fusion reactor experiments to simulate fusion alpha particle heating in the first plasma. The majority of the fast .sup.3 He.sup.++ ions and their slowing down spectrum can be studied using either a modulated hydrogen beam source for producing excited states of He.sup.+ in combination with spectrometers or double charge exchange with a high energy neutral lithium beam and charged particle detectors at the plasma edge. The maintenance problems thus associated with neutron activation are substantially reduced permitting energetic alpha particle behavior to be studied in near term large fusion experiments.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1986},
month = {4}
}

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