Advantages of Helium and Neon Ion Beams for Intelligent Imaging

Evaluation of variable relative biological effectiveness and the creation of homogenous biological dose in the tumor region in helium ion radiation to the V79 cell line

In radiation therapy, ions heavier than proton have more biological advantages than a proton beam. Recently, ion helium has been considered due to high linear energy transfer (LET) to the medium and a higher relative biological effect (RBE). To design the spread-out Bragg peak (SOBP) of biological dose for radiation with any type of ion, we need exact values of RBE, which is dependent to dose, ...

Polyvinyltoluene scintillators for relative ion dosimetry: An investigation with Helium, Carbon and Neon beams

Numerical investigation of depth profiling capabilities of helium and neon ions in ion microscopy

The analysis of polymers by secondary ion mass spectrometry (SIMS) has been a topic of interest for many years. In recent years, the primary ion species evolved from heavy monatomic ions to cluster and massive cluster primary ions in order to preserve a maximum of organic information. The progress in less-damaging sputtering goes along with a loss in lateral resolution for 2D and 3D imaging. By...

Heavy Ion Radiotherapy: Yesterday, Today and Tomorrow*

At EO Lawrence Berkeley National Laboratory (LBNL), clinical trials were conducted (1975-1992) for treating human cancer using heavy ion beams, in which about 700 patients were treated with helium-ion and about 300 patients with neon-ion beams. Clinical trials at the Gesellschaft für Schwerionenforschung (GSI) in Darmstadt, Germany used carbon-ion beams to treat about 250 patients (1997-2005). ...

Ion Beam Induced Current Measurements of Solar Cells with Helium Ion Microscopy

The scanning electron microscope (SEM) is a versatile high-resolution microscopy tool, and perhaps the most widely used imaging platform across many engineering and scientific fields [1]. Within the last decade, another microscopy technique based on a gaseous field ionization source, utilizing Helium and Neon ions has been introduced [2]. While the popularity of the SEM is hardly challenged by ...