摘要
Implantation experiments of low energy（1 keV【E【18 keV）hydrogen ion beamson hydrogen loaded metals are performed with high beam density(J<sub>max</sub>1.2 mA/cm<sup>2</sup>)and lowbeam density(J<sub>min</sub>0.02 mA/cm<sup>2</sup>).Palladium and titanium foils（plates）are bombarded withproton and deuteron beams in order to compare the atomic and nuclear interactions between dif-ferent ion beams.X-ray and charged particles are measured,and neutron and gamma doses arealso monitored during the implantation experiments.An anomalous peak in X-spectra,whoseenergy is about four times the beam energy,is observed during the high beam density experi-ment.The peak moves from about 40 keV to 62 keV and FWHM reduces rapidly,while thebeam energy and intensity increase.Another wide peak with over twice the beam energy is mea-sured in experiment with low beam density.It is located between 16 keV and 30 keV,and itspeak energy increases with the increase of implantation dose（implantation time）.Some anoma-lous intensities of neutrons correlated with a charged particle peak（2.93,3.85 MeV）are alsoobserved in the deuteron-palladium experiment.The highest neutron intensity reaches about8×10<sup>4</sup> n/s,while the beam energy and intensity are about 15 keV and 1.0 mA,respectively.
Implantation experiments of low energy（1 keV<E<18 keV）hydrogen ion beams on hydrogen loaded metals are performed with high beam density(J<sub>max</sub>1.2 mA/cm<sup>2</sup>)and low beam density(J<sub>min</sub>0.02 mA/cm<sup>2</sup>).Palladium and titanium foils（plates）are bombarded with proton and deuteron beams in order to compare the atomic and nuclear interactions between dif- ferent ion beams.X-ray and charged particles are measured,and neutron and gamma doses are also monitored during the implantation experiments.An anomalous peak in X-spectra,whose energy is about four times the beam energy,is observed during the high beam density experi- ment.The peak moves from about 40 keV to 62 keV and FWHM reduces rapidly,while the beam energy and intensity increase.Another wide peak with over twice the beam energy is mea- sured in experiment with low beam density.It is located between 16 keV and 30 keV,and its peak energy increases with the increase of implantation dose（implantation time）.Some anoma- lous intensities of neutrons correlated with a charged particle peak（2.93,3.85 MeV）are also observed in the deuteron-palladium experiment.The highest neutron intensity reaches about 8×10<sup>4</sup> n/s,while the beam energy and intensity are about 15 keV and 1.0 mA,respectively.
