NOTES ON PLASMA OSCILLATIONS,

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Abstract:

The full spectrum of oscillations generated in a low-pressure, low-voltage hot-cathode plasma maintained by an electron beam is outlined. It has been confirmed that a number of frequencies occur in the plasma-electron band but the simultaneity of the oscillations in a sufficiently short time scale is questioned. Problems also arise in connection with the reality and amplitude of harmonics and subharmonics. Study of ion-band oscillations showed the need for simplification of plasma geometry. A cylindircal tube constructed with this aim has proved to be a source of intermediate band 30 - 200 Mcs oscillations, which are being actively investigated. Some new experiments are also being done on two-beam instability, and on plasma-electron concentration contours. Author

Author(s):
Emeleus, K. G. ; Jones, J. M.
Author Organization(s):
QUEEN'S UNIV BELFAST (NORTHERN IRELAND)
Pagination:
0013

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
TN1, ARL-63 155
Contract/Grant Number(s):
AF EOAR62 68
Monitor Series:
63 155
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*OSCILLATION, FREQUENCY, ELECTRON BEAMS, EXCITATION, GAS IONIZATION, HIGH FREQUENCY, LOW FREQUENCY, ELECTROSTATIC FIELDS, ELECTROSTATIC FIELDS
Report Date:
1963 Jun 10