6533b81ffe1ef96bd1277d84
RESEARCH PRODUCT
Concept of a high-resolution online mass separator for the Munich fission fragment accelerator
Ulrich SchrammThomas FaestermannJ. OttP. ThirolfPaul KienleDietrich HabsUlli KösterOliver KesterDirk RudolphG. HindererH. J. KörnerT. Von EgidyHartmut Backesubject
Nuclear and High Energy PhysicsChemistryFissionCoulomb barrierPenning trapNuclear physicsNuclear fusionThermal emittanceNeutronIon trapAtomic physicsNuclear ExperimentInstrumentationBeam (structure)description
A fission fragment accelerator combined with the Munich high-flux reactor FRM-II is under design for the delivery of intense beams of mass separated very neutron-rich fission fragments with energies at the Coulomb barrier They can be used to produce very heavy neutron-rich nuclei in fusion reactions. The large neutron excess will result in much longer lifetimes of the produced heavy elements, compared to neutron-deficient ones produced in reactions with stable nuclear beams. Thus fast a-chains can no longer be used to identify the heavy reaction products. A new separator will be used consisting of a velocity filter, an ion guide system (IGISOL) and a Penning trap. The velocity filter separates the primary beam and results in a strong background suppression. The IGISOL system improves the emittance and enriches the 1(+) ions in the beam, which will then be efficiently transferred into a Penning trap. In the Penning trap the ions are bunched, stopped and mass separated with high resolving power (R approximate to 10(5)). (Less)
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1997-04-01 |