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Related publications (41)

Development and application of objective uncertainty measures for nuclear power plant transient analysis

For the development, design and licensing of a nuclear power plant (NPP), a sound safety analysis is necessary to study the diverse physical phenomena involved in the system behaviour under a wide range of operational and transient conditions. Such studies ...

EPFL2007

Effects of void uncertainties on the void reactivity coefficient and pin power distributions for a 1010 BWR assembly

Rakesh Chawla, Fabian Jatuff, Flavio Dante Giust

An important source of uncertainty in boiling water reactor physics is associated with the precise characterisation of the moderation properties of the coolant and by-pass regions, with significant impact on reactor physics parameters such as the lattice n ...

Elsevier2006

Application of the shaped electrode technique to a large area rectangular capacitively coupled plasma reactor to suppress standing wave nonuniformity

Christoph Hollenstein, Alan Howling, Laurent Fabien Hubert Sansonnens, Hannes Schmidt

The electromagnetic standing wave effect can become the main source of nonuniformity limiting the use of very high frequency in large area reactors exceeding 1 m(2) required for industrial applications. Recently, it has been proposed and shown experimental ...

2006

Comparisons of deterministic neutronic calculations with Monte Carlo results for an advanced BWR fuel assembly with hafnium control blades

Rakesh Chawla, Filippo Tani, Fabian Jatuff, Michaël Plaschy, Flavio Dante Giust

From the neutronic viewpoint, the optimization of BWR core designs is strongly related to the accurate determination of flux variations inside and around fuel assemblies. These fluctuations, which are mainly due to the high heterogeneity of the fuel and mo ...

Atomic Energy Society of Japan2006

Aerobic granular sludge reactor technology Aerobic granulation in bubble column reactor at unregulated temperature

Sébastien Gabus

Aerobic granular sludge technology offer a possibility to design compact wastewater treatment plant based on simultaneous COD, nitrogen and phosphate removal in a sequencing batch reactor.Simultaneous nutriment removal was possible, because of heterotrophi ...

2006

Characterization of a high-density, large-area VHF plasma source

Hannes Schmidt

Feasibility Study of Shaped Electrode The objective of this project was a feasibility study of a novel, large-area plasma reactor for thin film production, based on a shaped electrode technique ("lens") to compensate the standing wave non-uniformity. Cyli ...

EPFL2006

Within-pin 238U-capture distributions: CASMO-4 and MCNP vs. activation foil measurements

Rakesh Chawla, Fabian Jatuff

The design of modern BWR assemblies is governed by general requirements such as safe and reliable performance, optimal fuel utilization and cycle length, and a high degree of flexibility in reactor operation. These requirements are fulfilled via the use of ...

ANS2005

BWR stability and bifurcation analysis using a novel reduced order model and the system code RAMONA

Abdelhamid Dokhane

Boiling water reactor (BWR) stability analysis is usually carried out using large system codes. However, because of the large computational efforts required, such codes cannot in practice be employed for the detailed investigation of the complete manifold ...

EPFL2004

High Efficiency p-i-n a-Si:H Solar Cells with Low Boron Cross-Contamination Prepared in a Large Area Single-Chamber PECVD Reactor

Christoph Hollenstein, Arvind Shah, Alan Howling, Cédric Bucher, Juliette Ballutaud, Stefano Benagli

In this work, a new type of short water vapor treatment of the interface between the p- and i-layer is presented. This novel treatment is performed under vacuum below 1 mbar for 5 min and considerably reduces the i-layer boron contamination in amorphous si ...

2004

Reduction of the boron cross-contamination for plasma deposition of p–i–n devices in a single-chamber large area radio-frequency reactor

Christoph Hollenstein, Arvind Shah, Alan Howling, Cédric Bucher, Juliette Ballutaud, Stefano Benagli

In this article, a new treatment to reduce boron contamination of the interface between the p- and i- layer is presented. An ammonia flush, performed at 10 Pa for 1 min, after deposition of the p-layer considerably reduces the boron contamination at the p- ...

2004

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