INVESTIGATION OF THE FLOW OF NEUTRAL ATOMIC PARTICLES EMITTED BY THE PLASMA OF THE ALPHA FACILITY

Journal Article · Thu Dec 01 04:00:00 EST 1960 · Zhur. Tekh. Fiz.

OSTI ID:4069495

Afrosimov, V V; Gladkovskii, I P; Gordeev, Yu S; Kalinkevich, I F; Petrov, M P; Fedorenko, N V

The energy dependence of the atomic particles leaving the Alpha facility upon loop voltage, magnetic field, and pressure was measured. Practically all the particles leaving were hydrogen atoms. The energy distributions were normalized at 500 ev and the energy range extended from 300 ev to 10 kev. The number of fast particles increased with increasing loop voltage but decreased with increasing magnetic field or increasing pressure. For a group of particles with average energy of 400 ev the time dependence showed that as the loop voltage was increased one pulse of particles occurring at the sams time as the impulse maximum spread into two pulses, one at the beginning and one at the end of the impulse. For higher fields the time interval between the maxima of the two pulses decreased. For higher pressures the first pulse decreased in amplitude whereas the second remain constant. The results were similar for other groups with higher average energy. The density of atoms of energies 300 ev to 10 kev varied from lO/sup 9/ to 7 x 10/sup 10/ atoms/cm/sup 3/ or 10/sup -4/ to 5 x 10/ sup -3/ of the density of ions in the plasma. The energy of the atoms having energy greater than 300 ev represented 5 to 13% of the total energy available. The current of fast atoms was caused by the charge exchange of fast ions within the discharge. The energy distribution could not be approximated by a Maxwellian distribution. (TTT)

• Research Organization: Inst. of Physics and Tech., Academy of Sciences, USSR; and Research Inst. for Electrophysical Apparatus, USSR
• NSA Number: NSA-15-013865
• OSTI ID: 4069495
• Journal Information: Zhur. Tekh. Fiz., Journal Name: Zhur. Tekh. Fiz. Vol. Vol: 30
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

ALPHA DEVICE
ATOMS
CHARGE EXCHANGE
DENSITY
ELECTRIC CHARGES
ELECTRIC POTENTIAL
EMISSION
ENERGY
ENERGY RANGE
HYDROGEN
INTERACTIONS
IONS
LOSSES
MAGNETIC FIELDS
MEASURED VALUES
NEUTRAL PARTICLES
PARTICLES
PHYSICS
PINCH
PLASMA
PRESSURE
PULSES
SPECTRA
THERMONUCLEAR DEVICES
TORUS
ZETA DEVICE