Ion microbeam facility at the Wakasa Wan Energy Research Center

Localization of Aluminum in Epidermal Cells of Mature Tea Leaves

“…We used the microprobe beamline at the Wakasa Wan Energy Research Center [10][11][12], and the micro-PIXE measurements were conducted using a proton beam with an energy of 2.5 MeV. The smallest beam size attained with the facility was less than 1 µm × 1 µm [12]. The typical epidermal cell in the examined tea leaf was approximately 12 µm thick, 10-20 µm wide, and the thickness of the cell wall was about 3 µm.…”

In-air micro-PIGE measurement system for fluorine analysis of the tooth

“…The new in-air micro-PIGE and micro-PIXE measurement system were installed in the microprobe beam line at the Wakasa Wan Energy Research Center [9,10]. A schematic view of the system is shown in Fig.…”

“…Although the initial beam size was about 2 lm · 2 lm with a beam current of 140 pA under the vacuum condition [9], the beam is expected to broaden in the air due to the effect of the multiple scattering at the beam extraction window and gas in the beam path. Therefore, we measured beam sizes as a function of the distance between the window and the sample, and the beam energy and gas in the beam path in order to fix the conditions for the tooth measurement.…”

Quantitative Ion Beam Analysis for Light Elements using In-air and High Depth Resolution Systems

“…PIXE measurements have been performed mainly at the µ-beam line in WERC. This line can measure 2-dimensional mapping with X-Y scanning electrodes, and the position resolution becomes several µm [12].…”