RADIATION OF PLASMA OSCILLATION
Plasma radiation of the same frequency as the electron plasma oscillations was studied in the microwave region using a mercury-filled hot cathode tube and detecting the radiation with an electromagnetic horn and a superheterodyne receiver of intermediate frequency 70 Mc (band width 2 Mc). Experiments on microwave reflection were also carried out using a klystron signal source in order to determine the electron concentration in the plasma. From the radiation and reflection data vs. discharge current for a frequency of 9600 Mc and a pressure of 3 x 10/sup -3/ mm mercury, the radiation shows a resonance at the current where reflection reaches saturation and thus appears to originate from plasma oscillations. When the tube pressure was increased to lO/sup -2/ mm mercury, the resonance decreased to below the noise level. The observations support the conclusion that the plasma oscillations are strongly excited in front of the cathode and that its transformation into radiation takes place markedly in inhomogeneous plasma. (D.L.C.)
- Research Organization:
- Tokyo Univ. of Education
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-15-002283
- OSTI ID:
- 4119901
- Journal Information:
- J. Phys. Soc. Japan, Journal Name: J. Phys. Soc. Japan Vol. Vol: 15
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
Similar Records
OSCILLATIONS IN A PLASMA IN A WEAK MAGNETIC FIELD
Coherent very high power microwave source using a virtual cathode oscillator
OSCILLATIONS IN PLASMA. II
Journal Article
·
Wed Jun 01 00:00:00 EDT 1960
· J. Phys. Soc. Japan
·
OSTI ID:4172462
Coherent very high power microwave source using a virtual cathode oscillator
Conference
·
Tue Dec 31 23:00:00 EST 1985
·
OSTI ID:5280770
OSCILLATIONS IN PLASMA. II
Journal Article
·
Mon Jun 01 00:00:00 EDT 1959
· J. Phys. Soc. Japan
·
OSTI ID:4247852