Nanoscale dispensing (NADIS) has been recently developed for liquid deposition and manipulation. In NADIS, atomic force microscope probe milled by a focused ion beam was used for nanoscale dispensing of liquid. We present an approach to control the size of dispensed droplets by several parameters such as the aperture size on the probe, the surface energy of both tip outer wall and sample surfac...

The ion energy distribution of each ion species in the SPT-100 plume was obtained at various angles off thruster axis at 1 m and 50 cm from the thruster exit using an ExB probe. Each peak of the measured ExB probe traces were fitted using a model based on the kinetic theory of gases, and the energy distribution functions f(Ei) were obtained. From the fitting parameters, Eb (the beam energy) and...

Azide ion is an excellent vibrational probe for studying ion-ion and ion-dipole interactions in solutions because its frequency is sensitively dependent on its local environments. When azide ion forms contact ion pairs with cations in dimethylsulfoxide (DMSO), free azide ion and contact ion pairs are spectrally well distinguished in FTIR spectra. Here, we investigated vibrational population rel...

Related Articles Measurement of ion and electron temperatures in plasma blobs by using an improved ion sensitive probe system and statistical analysis methods Rev. Sci. Instrum. 83, 023502 (2012) Diagnostics of the ITER neutral beam test facility Rev. Sci. Instrum. 83, 02B103 (2012) Electron cyclotron resonance ion source plasma chamber studies using a network analyzer as a loaded cavity probe ...

We demonstrate the use of a single trapped ion as sensor to probe electric-field noise from interchangeable test surfaces. As proof principle, we measure magnitude and distance dependence two ion-trap-like samples with patterned Au electrodes. This trapped-ion could be combined other surface characterization tools help elucidate mechanisms that give rise ion-trap Such presents significant hurdl...