Accession Number : ADA456260


Title :   Studies of Plasma Instabilities Excited by Ground-Based High Power HF (Heating) Facilities and of X and Gamma Ray Emission in Runaway Breakdown Processes


Descriptive Note : Final rept. 7 Jan 2002-14 Sep 2006


Corporate Author : RUSSIAN ACADEMY OF SCIENCES MOSCOW (RUSSIA) LEBEDEV INST


Personal Author(s) : Gurevich, Aleksander V


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a456260.pdf


Report Date : Aug 2006


Pagination or Media Count : 66


Abstract : This report results from a contract tasking P. N. Lebedev Physical Institute as follows: The investigation will focus on how high power HF radio waves and quasistationary electric field interact with collisional plasmas, such as the earth's ionosphere or thunderstorm atmosphere. The aim of this proposal to investigate: 1. The interaction of Langmuir turbulence with surrounding ionospheric plasma determining kinetics of thermal and suprathermal electrons; 2. The optic emission of suprathermal electrons; 3. The effect of ionospheric drifts on the generation of field aligned small scale striations; 4. The runaway breakdown process in inhomogeneous thunderstorm electric field; 5. X-ray emission in different gases due to runaway breakdown phenomena in a laboratory cyclotron installation; 6. An influence of combined effects of runaway breakdown and cosmic rays on lightning processes in thunderstorm atmosphere.


Descriptors :   *IONOSPHERE , *X RAYS , *RADIO WAVES , *GAMMA EMISSION , *PLASMA INSTABILITIES , *GAS BREAKDOWN , *RADIOFREQUENCY , THERMAL PROPERTIES , HIGH POWER , RADIATION , FREQUENCY MODULATION , DRIFT , INSTALLATION , LABORATORIES , CYCLOTRONS , COSMIC RAYS , THUNDERSTORMS , STRIATIONS , COLLISIONS , ATMOSPHERES , RUNWAYS , EARTH(PLANET) , GROUND BASED , STORMS , LIGHTNING , ELECTRONS , REPORTS , PLASMAS(PHYSICS) , OPTICS , EMISSION


Subject Categories : Physical Chemistry
      Nuclear Physics & Elementary Particle Physics
      Plasma Physics and Magnetohydrodynamics
      Radiofrequency Wave Propagation


Distribution Statement : APPROVED FOR PUBLIC RELEASE