Concept

Uranium dioxide

Related publications (46)

Development and benchmarking of a 2D transient thermal model for GFR plate-type fuel

Rakesh Chawla, Konstantin Mikityuk, Petr Petkevich

Several new fuel designs are currently being considered within the generation-IV gas-cooled fast reactor (GFR) project. One of them, which is the GFR reference design, is a ceramic plate matrix with a honeycomb inner structure containing small fuel cylinde ...

Elsevier Science Ltd.2007

Trapping, self-trapping and the polaron family

Henrik Moodysson Rønnow

The earliest ideas of the polaron recognized that the coupling of an electron to ionic vibrations would affect its apparent mass and could effectively immobilize the carrier (self-trapping). We discuss how these basic ideas have been generalized to recogni ...

IOP PUBLISHING LTD2007

Optically tunable microcavity in a planar photonic crystal silicon waveguide buried in oxide

Hans Peter Herzig

We present all-optical tuning and switching of a microcavity inside a two-dimensional photonic crystal waveguide. The photonic crystal structure is fabricated in silicon-on-insulator using complementary metal-oxide semiconductor processing techniques based ...

2006

Characterization of buried photonic crystal waveguides and microcavities fabricated by deep ultraviolet lithography

Hans Peter Herzig

We present results of the optical characterization of silicon photonic crystal waveguides and microcavities that are completely buried in a silicon dioxide cladding and are fabricated by deep ultraviolet (UV) lithography. The advantages of buried waveguide ...

2005

Characterization of buried photonic crystal waveguides and microcavities fabricated by deep UV-lithography

Hans Peter Herzig, Ross Stanley, Iwan Märki

2005

Interpretation of experimental results from moderate-power in-pile testing of a Pu-Er-Zr-oxide inert matrix fuel

Rakesh Chawla

Pu-Er-Zr oxide as an inert matrix fuel (IMF) could be an attractive option for a once-through LWR strategy aimed at reducing the currently growing plutonium stockpiles. A basic question related to the practical introduction of such an IMF into a current-da ...

Elsevier2003

Numerical neutronics benchmark study for inert matrix plutonium fuels in uranium dioxide and mixed plutonium-uranium dioxide environments

Rakesh Chawla

A numerical benchmark exercise has been under way for comparing the results of different calculational methods/data sets used for the analysis of light water reactor (LWR) configurations employing Pu inert matrix fuels (IMFs). The first phase of the exerci ...

Elsevier Science Ltd2001

Behaviour of implanted xenon in yttria-stabilised zirconia as inert matrix of a nuclear fuel

Manuel Alexandre Pouchon

A zirconia-based fuel is studied for use of plutonium in light water reactors. Among the relevant properties for a nuclear fuel, efficient retention of fission products is required since the fuel matrix constitutes the first barrier against fission product ...

Elsevier2001

Integral measurements with a plutonium inert matrix fuel rod in a heterogeneous light water reactor lattice

Rakesh Chawla, Fabian Jatuff

As part of PSI's validatory efforts for neutronics calculations pertaining to inert matrix fuel (IMF) deployment in light water reactors, first-of-their-kind integral measurements have been carried out at the PROTEUS facility employing a specially fabricat ...

Elsevier Science Ltd2001

The influence of carbonate complexes on the solubility of zirconia: new experimental data

Manuel Alexandre Pouchon

New experiments conducted at pH 9 and 298 K clearly indicate that addition of bicarbonate ions in aqueous solutions increases the solubility of both cubic and monoclinic zirconia by several orders of magnitude. In pure water the solubility of zirconia prov ...

Elsevier2001

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