6533b7d0fe1ef96bd125a3d3

RESEARCH PRODUCT

Advanced time-stamped total data acquisition control front-end for MeV ion beam microscopy and proton beam writing

Leona GilbertNitipon PuttaraksaMikko LaitinenPeter M. JonesK. RanttilaRattanaporn NoraratHarry J. WhitlowVarpu MarjomäkiMikko RossiVäinö HänninenP. HeikkinenTimo SajavaaraHenri Kivistö

subject

Materials scienceIon beamta221Analytical chemistryHardware_PERFORMANCEANDRELIABILITYIon beam lithographyProton beam writingFront and back endsComputer Science::Hardware ArchitectureData acquisitionOpticsMicroscopyHardware_INTEGRATEDCIRCUITSElectrical and Electronic EngineeringField-programmable gate arrayHardware_REGISTER-TRANSFER-LEVELIMPLEMENTATIONta114business.industryta1182MicrobeamCondensed Matter PhysicsAtomic and Molecular Physics and OpticsSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsPhysics::Accelerator Physicsbusiness

description

Many ion-matter interactions exhibit [email protected] time dependences such as, fluorophore emission quenching and ion beam induced charge (IBIC). Conventional event-mode MeV ion microbeam data acquisition systems discard the time information. Here we describe a fast time-stamping data acquisition front-end based on the concurrent processing capabilities of a Field Programmable Gate Array (FPGA). The system is intended for MeV ion microscopy and MeV ion beam lithography. The speed of the system (>240,000 events s^-^1 for four analogue to digital converters (ADC)) is limited by the ADC throughput and data handling speed of the host computer.

10.1016/j.mee.2012.02.011http://juuli.fi/Record/0039965113