0000000000505329

AUTHOR

Paul Schuurmans

showing 3 related works from this author

Development of a liquid Pb-Bi target for high-power ISOL facilities

2016

Abstract This paper describes some R&D activities conducted in support of the design and safe operation of a high-power liquid Pb-Bi target within the LIEBE (Liquid Eutectic Lead Bismuth Loop Target for EURISOL) project. The target material is lead bismuth eutectic (LBE) which also acts as a primary coolant. As a consequence of interaction of the highly pulsed 1.4-GeV protons at ISOLDE with the target, heat powers of the order of 2 GW would be instantaneously deposited in the target during a bunch. Considerable R&D effort is thus required to demonstrate its continued coolability and structural integrity. This paper mainly reports on the conjugate flow (CFD) and heat deposition (Monte Carlo)…

Nuclear and High Energy PhysicsLiquid metalMaterials science010308 nuclear & particles physicsLead-bismuth eutecticNuclear engineeringMonte Carlo methodRadiochemistrychemistry.chemical_elementFluid mechanics01 natural sciences010305 fluids & plasmasBismuthCoolantchemistry0103 physical sciencesDeposition (phase transition)InstrumentationEutectic systemNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
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Space Charge Effects in a Gas Filled Penning Trap

2001

Mass selective buffer gas cooling is a technique used for ions that are stored in a Penning trap. The technique can be applied to all elements and the mass resolving power achieved has proven to be sufficient to resolve isobars. When not only a few but 106 and more ions are stored at the same time, space charge starts to play a dominant role for the spatial distribution. In addition, the observed cyclotron frequency is shifted. This work investigates these effects by numerical calculations.

Work (thermodynamics)ChemistrylawBuffer gasCyclotronIsobarIon trapAtomic physicsPenning trapSpace chargeIonlaw.invention
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Search for new physics in beta-neutrino correlations with the WITCH spectrometer

2002

The WITCH (Weak Interaction Trap for CHarged particles) experiment is a retardation spectrometer coupled to a Penning trap and measures the beta-neutrino angular correlation via the shape of the recoil energy spectrum. The present form of the Standard Model describes weak processes in terms of vector and axial-vector type interactions, but the possible presence of scalar and tensor interactions is not yet ruled out. The main aim of this experiment is a test of the Standard Model for possible admixture of scalar and tensor currents. (C) 2002 Elsevier Science B.V. All rights reserved.

Nuclear physicsPhysicsNuclear and High Energy PhysicsParticle physicsSpectrometerScalar (mathematics)TensorNeutrinoWeak interactionPenning trapStandard ModelLeptonNuclear Physics
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