Effect of anode shape on correlation of neutron emission with pinch energy for a 2.7 kJ Mather-type plasma focus device

Journal Article · Wed Jul 15 00:00:00 EDT 2009 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.3177253· OSTI ID:21359318

Hussain, S S; Murtaza, Ghulam; Zakaullah, M ^[1]; Ahmad, S ^[2]

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1. Department of Physics, Quaid-i-Azam University, 45320 Islamabad (Pakistan)
2. National Tokamak Fusion Program, P.O. Box 3329, Islamabad (Pakistan)

Correlation of neutron emission with pinch energy for a Mather-type plasma focus energized by a single capacitor 12.5 muF, 21 kV (2.7 kJ) is investigated by employing time resolved and time integrated detectors for two different anode shapes. The maximum average neutron yield of about 1.3x10{sup 8} per shot is recorded with cylindrical anode, that increases to 1.6x10{sup 8} per shot for tapered anode. At optimum pressure the input energy converted to pinch energy is about 24% for cylindrical anode as compared to 36% for tapered anode. It is found that the tapered anode enhances neutron flux about 25+-5% both in axial and radial directions and also broadens the pressure range for neutron emission as well as pinch energy. The neutron yield and optimum gas filling pressures are found strongly dependent on the anode shape.

• OSTI ID: 21359318
• Journal Information: Journal of Applied Physics, Vol. 106, Issue 2; Other Information: DOI: 10.1063/1.3177253; (c) 2009 American Institute of Physics; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ANODES
CAPACITORS
NEUTRON EMISSION
NEUTRON FLUX
NEUTRONS
PINCH EFFECT
PLASMA FOCUS
PLASMA FOCUS DEVICES
TIME RESOLUTION
BARYONS
ELECTRICAL EQUIPMENT
ELECTRODES
ELEMENTARY PARTICLES
EMISSION
EQUIPMENT
FERMIONS
HADRONS
NUCLEONS
OPEN PLASMA DEVICES
RADIATION FLUX
RESOLUTION
THERMONUCLEAR DEVICES
TIMING PROPERTIES