6533b851fe1ef96bd12a983a
RESEARCH PRODUCT
Development of the Jyväskylä microbeam facility
Rattanaporn NoraratVäinö HänninenK. RanttilaMikko RossiVarpu MarjomäkiP. HeikkinenPeter M. JonesHarry J. WhitlowKari YlikorkalaMikko LaitinenLeona GilbertTimo Sajavaarasubject
Nuclear and High Energy PhysicsMaterials scienceta114business.industryRigid frameDetectorSolid angleMicrobeamSecondary electronsIonlaw.inventionPelletronOpticsOptical microscopelawbusinessInstrumentationdescription
Abstract A new microbeam facility is being constructed at the 1.7 MV Pelletron Accelerator in Jyvaskyla. The facility is designed for easy upgrading and incorporates a number of innovative features. Initially, it is based on a Heidelberg doublet with a design capability of a 3 × 5 μm beamspot at PIXE intensities and later upgraded to nanobeam performance. A thermal-expansion compensated rigid frame mounted on a mechanically isolated floor section is used to support the ion optical components. A compact-post focusing electrostatic deflector is used for high linearity beam scanning. This together with a novel time-stamped data collection (TDC) allows dynamic effects in IBIC, fluorescence bleaching to be studied as well as facilitating multi-resolution image support for low-fluence imaging of cells. The target chamber is fitted with a novel low-cost large working distance optical microscope, extremely compact large solid angle photon detectors as well as conventional secondary electron, PIXE and Scanning Transmission Ion Microscopy (STIM) detectors.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-02-01 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms |