The Gas Motion Due To Non-Uniform Heating By 3He(n,p)3H Reactions In The Nuclear-Pumped3He -Lasers

Journal Article · Mon Apr 23 00:00:00 EDT 2007 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2733057· OSTI ID:21057090

Cetin, Fuesun ^[1]

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1. Istanbul Technical University, Energy Institute, Istanbul (Turkey)

In the nuclear pumped-lasers, the passage of these energetic charged particles through gas results in a non-uniform volumetric energy deposition. This spatial non-uniformity induces a gas motion, which results in density and hence refractive index gradients that affects the laser's optical behaviour. The motion of 3He gas in a closed cavity is studied when it experiences transient and spatially non-uniform volumetric heating caused by the passage of 3He(n,p)3H reaction products. Gas motion is described by the radial velocity field of gas flow. Spatial and temporal variations of radial gas velocity are calculated for various tube parameters by using a dynamic energy deposition model. In the calculations, it is assumed that the laser tube is irradiated with neutrons from the pulse at a peak power of 1200 MW corresponding to a maximum thermal neutron flux of 8x1016 n / cm2sn in the central channel of ITU TRIGA Mark II Reactor. Results are examined.

• OSTI ID: 21057090
• Journal Information: AIP Conference Proceedings, Vol. 899, Issue 1; Conference: 6. international conference of the Balkan Physical Union, Istanbul (Turkey), 22-26 Aug 2006; Other Information: DOI: 10.1063/1.2733057; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
DENSITY
GAS FLOW
HEATING
HELIUM 3
HELIUM 3 TARGET
IRRADIATION
LASERS
NEUTRON FLUX
NEUTRON REACTIONS
NUCLEAR PUMPING
NUMERICAL ANALYSIS
PROTON-NEUTRON INTERACTIONS
PROTONS
PULSES
RADIAL VELOCITY
REFRACTIVE INDEX
THERMAL NEUTRONS
TRANSIENTS
TRIGA-2 REACTOR
TRITONS