Abstract
Natural neon has three stable isotopes, 20Ne (90.92%), 21Ne (0,257%) and 22Ne (8.8%) which can be detected by nuclear reactions. An experiment on the elastic scattering of 2 MeV 4He ions from a solid neon target at 5.5 K is described, the spectrum is correctly fitted with a calculation using the Rutherford scattering cross section. Most applications are in the analysis of neon implanted metals. Depth profiling is possible by nuclear resonant reactions. A review is given of the main resonances used; in each case prompt λ-rays are detected. In the analysis of 20Ne, the 20Ne(p, λ) 21Na ∗ reaction has a narrow resonance at 1168,8 keV which can be used with detection of annihilation λ-rays from the β + decay of 21Na ∗. The 22Ne(p, λ) 23Na ∗ reaction has a resonance at 1005 keV yielding 2640 keV λ-rays, the half-line (120 fs) is short enough to allow Doppler shift analysis. PIXE using solid state detectors has few applications but dispersive X-ray spectroscopy of neon shows wide broadening of X-rays lines. This phenomenon is observed in metals implanted with neon ions. It can be used for the estimation of the pressure inside the bubbles formed by implantation.
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