0000000000056120

AUTHOR

P. Reichert

showing 2 related works from this author

Cubic boron nitride: A new prospective material for ultracold neutron application

2009

Abstract At the ultracold neutron (UCN) source of the TRIGA research reactor in Mainz, we have measured for the first time the material optical wall-potential of cubic boron nitride. The measurements were performed with a time-of-flight (TOF) spectrometer. The samples investigated had a wall-potential of ( 305 ± 15 ) neV . This value is in good agreement with the result extracted from neutron reflectometry data and theoretical expectations. Because of its high critical velocity for UCN and its good dielectric characteristics, cubic boron nitride coatings (isotopically enriched) will be useful for a number of applications in UCN experiments.

PhysicsNuclear and High Energy PhysicsSpectrometerPhysics::Instrumentation and DetectorsFOS: Physical sciencesDielectricCritical ionization velocityTRIGACondensed Matter::Materials Sciencechemistry.chemical_compoundNuclear magnetic resonancechemistryBoron nitrideNeutronResearch reactorNeutron reflectometryNuclear Experiment (nucl-ex)Atomic physicsNuclear ExperimentNuclear ExperimentInstrumentation
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The recoil transfer chamber—An interface to connect the physical preseparator TASCA with chemistry and counting setups

2011

Performing experiments with transactinide elements demands highly sensitive detection methods due to the extremely low production rates (one-atom-at-a-time conditions). Preseparation with a physical recoil separator is a powerful method to significantly reduce the background in experiments with sufficiently long-lived isotopes (t1/2≥0.5 s). In the last years, the new gas-filled TransActinide Separator and Chemistry Apparatus (TASCA) was installed and successfully commissioned at GSI. Here, we report on the design and performance of a Recoil Transfer Chamber (RTC) for TASCA—an interface to connect various chemistry and counting setups with the separator. Nuclear reaction products recoiling o…

PhysicsNuclear reactionNuclear and High Energy Physicschemistry.chemical_elementTransactinide elementRecoil separatorIonNuclear physicsRecoilCardinal pointRigidity (electromagnetism)chemistryRutherfordiumInstrumentationNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
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