NEUTRON AND X RADIATION IN THE STABILIZED LINEAR PINCH EFFECT

Journal Article · Wed Apr 01 04:00:00 EST 1959 · Zeitschrift fuer Naturforschung (West Germany) Divided into Z. Nautrforsch., A, and Z. Naturforsch., B: Anorg. Chem., Org. Chem., Biochem., Biophys.,

OSTI ID:4251875

Funfer, E; Herold, H; Lehner, G; Tuczek, H; Andelfinger, C

The influence of stabilizing longitudinal fields on the intensity and the transient pattern of neutron emission in the linear pinch effect was investigated. In generals the studies were made with deuterium at 4 x 10/sup -2/ Torr, with a current strength of 3 x 10/sup 5/ amp and current increase of 6 x 10/ sup 11/ amp/sec. Witbout stubilization fields, approximately 3 x 10/sup 6/ neutrons were obtained per discharge. With increasing stabilization field this value decreases to a third at 900 gauss. The transient pattern in low longitudinal field is two neutron pulses and in higher fields three or more. The first pulse begins in approximately 2 ic sec shortly before the second plasma contraction and decreases very rapidly with increasing longitudinal fields which points to a relationship with (m = 0) instability. The periodic second pulse is connected to the occurrcnce of (m = 1) instability and is displaced with it to later timcs (from 2.5 ic sec at 0 gauss to 3.7 ic sec at 1100 gauss). Additional pulses, whose occurrence does not depond on the field and whose origin can not be explained by the so-called instabilities, occur between these points, Without a fields in measurements with nuclear emulsions, an asymmetry of the neutron energy was found which corresponds to an acceleration of deuterons in the direction of the discharge axis to 40 kev. At 300 gauss an x-ray pulse in connection with the first contraction of the plasma (in approximately 1.3 ic sec) was observed; its frequency increases with the field. Its average energy is at least several hundred kev. It was explained by the occurrence of runaway electrons in the electric field induced by the plasma contraction. A relationship between neutron and x-ray pulses could not be established. (tr-auth)

• Research Organization: Technische Hochschule, Munich
• NSA Number: NSA-13-013818
• OSTI ID: 4251875
• Journal Information: Zeitschrift fuer Naturforschung (West Germany) Divided into Z. Nautrforsch., A, and Z. Naturforsch., B: Anorg. Chem., Org. Chem., Biochem., Biophys.,, Journal Name: Zeitschrift fuer Naturforschung (West Germany) Divided into Z. Nautrforsch., A, and Z. Naturforsch., B: Anorg. Chem., Org. Chem., Biochem., Biophys., Vol. Vol: 14a; ISSN ZNTFA
• Country of Publication: Country unknown/Code not available
• Language: German

Related Subjects

CONFINEMENT
CURRENTS
DEUTERIUM
ELECTRIC DISCHARGES
ELECTRIC FIELDS
ELECTRONS
EMISSION
ENERGY
EXCURSIONS
FREQUENCY
KEV RANGE
MAGNETIC FIELDS
MEASURED VALUES
NEUTRONS
NUCLEAR EMULSIONS
PHYSICS AND MATHEMATICS
PINCH
PLASMA
PRESSURE
PULSES
STABILITY
TRANSIENTS
VELOCITY
X RADIATION