NDLI: Spatially resolved measurements of electron cyclotron resonance ion source beam profile characteristics.

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Invited article: Digital beam-forming imaging riometer systems.

Secondary ion counting for surface-sensitive chemical analysis of organic compounds using time-of-flight secondary ion mass spectroscopy with cluster ion impact ionization.

Active control of the pointing of a multi-terawatt laser.

Optical cell for combinatorial in situ Raman spectroscopic measurements of hydrogen storage materials at high pressures and temperatures.

Laser ablation with resonance-enhanced multiphoton ionization time-of-flight mass spectrometry for determining aromatic lignin volatilization products from biomass.

Calibration method to characterize the accuracy of phase-shifting point diffraction interferometer.

Performance of Y2O3∕Al multilayer coatings for the He-II radiation at 30.4 nm.

Measuring gain and noise in active long-range surface plasmon-polariton waveguides.

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Temperature-insensitive laser frequency locking near absorption lines.

Determination of the temperature of bremsstrahlung photon generated by ultraintense laser using various thickness attenuators.

Spatially resolved measurements of electron cyclotron resonance ion source beam profile characteristics.

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Note: A scanning thermal probe microscope that operates in liquids.

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Spatially resolved measurements of electron cyclotron resonance ion source beam profile characteristics.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Panitzsch, Lauri Stalder, Michael Wimmer-Schweingruber, Robert F.
Description	Country affiliation: Germany Author Affiliation: Panitzsch L ( Institute for Experimental and Applied Physics, University of Kiel, Kiel, Germany. panitzsch@physik.uni-kiel.de)
Abstract	Simulations predict that the concentric rings and the triangular structures in the profiles of strongly focused ion beams that are found in different experiments should be dominated by ion species with the same or at least similar m/q-ratio. To verify these theoretical predictions we have tuned our ECR ion source to deliver a beam consisting of multiple ion species whose particular m/q-depending focusing ranges from weakly focused to overfocused. We then recorded spatially resolved charge-state distributions of the beam profile at characteristic positions in the plane perpendicular to the beam line. The results validate theoretical predictions and are summarized in this paper. To achieve the required beam profile characteristics we moved the extraction along the beam line to achieve stronger focusing than by only changing the extraction voltage. To fit the regions of interest of the beam profile into the transmission area of the sector magnet, we steered the beam by moving the extraction in the plane perpendicular to the beam axis. The results of both investigations, beam focusing and beam steering by using a 3D-movable extraction, are also reported in this paper. A brief overview of the new beam monitor extensively used during these measurements, the Faraday cup array, is also given.
ISSN	00346748
Issue Number	3
Journal	Review of Scientific Instruments
Volume Number	82
e-ISSN	10897623
Language	English
Publisher	American Institute of Physics
Publisher Date	2011-03-01
Publisher Place	United States
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Physics Discipline Chemistry
Content Type	Text
Resource Type	Article
Subject	Medicine Instrumentation

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