A METHOD FOR INVESTIGATION OF THE FLOW OF ATOMS EMITTED FROM A PLASMA

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

OSTI ID:4055215

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

A method is described in which the uncharged atomic particles leaving the impulse Alpha facility are analyzed for intensity, energy dependence, time of occurrence, and mass. The uncharged particles leaving the plasma of Alpha enter a collimating slit system which defines the geometry; electrostatic plates permit only neutral particles to enter a gas cell with pressure of nitrogen of 10/sup -4/ mm Hg. Here ionization of the neutrals takes place and the emerging charged particles are swept onto a target. The secondary electrons emitted from this target are accelerated to 10 kev and then strike a scintillation crystal where a photomultiplier counts the number of particles. The sereitivity of this instrument was found by using an independent ion source and accelerating system; the coefficient for ionization and the integral and differential amplitude of the impulse were found, along with the saturation for accelerating voltage and the energy dependence. The method is useful over the energy range 250 ev to 40 kev. Circuits are outlined which give oscillographs of energy distribution, of the time dependence of particles with respect to original impulse, and analysis of mass by time of flight. Calculations are also given which relate the measured parameters to the internal plasma parameters: the erergy distribution of the impulse, the density within the plasma, and the type of emerging particle. (TTT)

• Research Organization: Inst. of Physics and Tech., Academy of Sciences, Leningrad
• NSA Number: NSA-15-013864
• OSTI ID: 4055215
• 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

ACCELERATORS
ALPHA DEVICE
ATOMS
CHARGED PARTICLES
CIRCUITS
CONFIGURATION
CRYSTALS
DENSITY
ELECTRIC POTENTIAL
ELECTRONS
ELECTROSTATICS
EMISSION
ENERGY
ENERGY RANGE
GASES
ION SOURCES
IONIZATION
LOSSES
MASS
MEASURED VALUES
NEUTRAL PARTICLES
NITROGEN
OSCILLOGRAPHS
PARTICLES
PHOTOMULTIPLIERS
PHYSICS
PINCH
PLATES
PRESSURE
PULSES
SCINTILLATION COUNTERS
SENSITIVITY
SPECTRA
TARGETS
THERMONUCLEAR DEVICES
TORUS
VESSELS
ZETA DEVICE