Search results for "carbon foil"

showing 2 items of 2 documents

Secondary electron flight times and tracks in the carbon foil time pick-up detector

2014

Carbon foil time pick-up detectors used in the time-of-flight measurements of MeV energy ions have been studied in connection to time-of-flight-energy spectrometer used for heavy ion elastic recoil detection analysis. In experimental coincident TOF-E data characteristic halos are observed around light element isobars, and the origin of these halos were studied. The experimental data indicated that these halos originate from single electron events occurring before the electron multiplication in the microchannel plate. By means of electron trajectory simulations, this halo effect is explained to originate from single electron, emitted from the carbon foil, hitting the non-active area of the m…

PhysicsToF-ERDANuclear and High Energy Physicstiming gateta114business.industryPhysics::Instrumentation and DetectorsDetectorElectrontime-of-flightSecondary electronsElastic recoil detectionTime of flightOpticsCoincidentMicrochannel plate detectorspectrometerAtomic physicsbusinesscarbon foil time pick-up detectorInstrumentationFOIL methodNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
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Trajectory bending and energy spreading of charged ions in time-of-flight telescopes used for ion beam analysis

2014

Carbon foil time pick-up detectors are widely used in pairs in ion beam applications as time-of-flight detectors. These detectors are suitable for a wide energy range and for all ions but at the lowest energies the tandem effect limits the achievable time of flight and therefore the energy resolution. Tandem effect occurs when an ion passes the first carbon foil of the timing detector and its charge state is changed. As the carbon foil of the first timing detector has often a non-zero voltage the ion can accelerate or decelerate before and after the timing detector. The combination of different charge state properties before and after the carbon foil now induces spread to the measured times…

ToF-ERDANuclear and High Energy PhysicsRange (particle radiation)Ion beam analysista114Ion beamPhysics::Instrumentation and DetectorsChemistryDetectortandem effectIonTime of flightPhysics::Plasma Physicscarbon foilElectric fieldtime-of-flighToF-EAtomic physicsInstrumentationFOIL methodNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
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