The X-ray spectra induced by the highly charged xenon and argon ions impinging on a tantalum surface are reported. The experiment was done at the ECR ion source of H1RFL. It is found that the yield of the tantalum M-X...The X-ray spectra induced by the highly charged xenon and argon ions impinging on a tantalum surface are reported. The experiment was done at the ECR ion source of H1RFL. It is found that the yield of the tantalum M-X rays increases intensively as the projectile kinetic energy increasing. Moreover, the tantalum M-X ray induced by the xenon ions is higher in energy and broader in width than that induced by the argon ions (as shown in Figs. 1 and 2).展开更多
The light spectrum of a wavelength from 200 to 1 000 nm emitted from Ti-atoms sputtered from the solid surface of Ti-target by slow highly charged ions (SHCI) has been done on the atomic physics experimental setup at ...The light spectrum of a wavelength from 200 to 1 000 nm emitted from Ti-atoms sputtered from the solid surface of Ti-target by slow highly charged ions (SHCI) has been done on the atomic physics experimental setup at the lab of ECRIS (14.5 GHz) in IMP (shown in Fig.1). The result shows that the atoms of the solid material can be strongly excited by the SHCIs even though the intensity of the incident ions is lower as展开更多
We have systematically investigated the X-rays emission of hollow atoms (HA) which formed in the interaction of highly charged ions with a variety of solid surfaces at the atomic physics experimental setup of IMP. The...We have systematically investigated the X-rays emission of hollow atoms (HA) which formed in the interaction of highly charged ions with a variety of solid surfaces at the atomic physics experimental setup of IMP. The X-ray spectra were measured by Si(Li) detectors with effective energy ranging from 1 keV to 60 keV. The results show that, the X-ray emission from the formed HA is closely correlated with the charge state of the projectile ions, and weakly correlated with the velocity of the projectile ions. For example, it was found that when Ar^18+ ions interact with Be-target, the yield of K X-ray with character energy of 3.0 keV is 7.2×10^-3 per ion, which is two times and 5 order of magnitude higher than those in the interactions of Ar^17+ and Ar^16+ ions respectively. When Ar15+ ions interact with the same targets, the Argon K X-ray would be too feeble to be detected. The X-ray yield with single ion in this experiment can be represented by the following equation,展开更多
The X-rays with energy from 1 keV to 60 keV in the interaction of highly charged ions (HCI) with a variety of solid surfaces were investigated at the research platform for atomic physics with the electron cyclone reso...The X-rays with energy from 1 keV to 60 keV in the interaction of highly charged ions (HCI) with a variety of solid surfaces were investigated at the research platform for atomic physics with the electron cyclone resonance (ECR) ion resource at IMP. We altered the projectile kinetic energy from 150 keV to about 400 keV. The X-ray excited by the projectile with the surface is shown in Fig.l, and a threshold of the projectile kinetic energy for this excitation is observed. Combining the colliding theory of classic electrodynamics with the concept of quantized orbits, we crudely give this threshold energy Tm as follows,展开更多
文摘The X-ray spectra induced by the highly charged xenon and argon ions impinging on a tantalum surface are reported. The experiment was done at the ECR ion source of H1RFL. It is found that the yield of the tantalum M-X rays increases intensively as the projectile kinetic energy increasing. Moreover, the tantalum M-X ray induced by the xenon ions is higher in energy and broader in width than that induced by the argon ions (as shown in Figs. 1 and 2).
文摘The light spectrum of a wavelength from 200 to 1 000 nm emitted from Ti-atoms sputtered from the solid surface of Ti-target by slow highly charged ions (SHCI) has been done on the atomic physics experimental setup at the lab of ECRIS (14.5 GHz) in IMP (shown in Fig.1). The result shows that the atoms of the solid material can be strongly excited by the SHCIs even though the intensity of the incident ions is lower as
文摘We have systematically investigated the X-rays emission of hollow atoms (HA) which formed in the interaction of highly charged ions with a variety of solid surfaces at the atomic physics experimental setup of IMP. The X-ray spectra were measured by Si(Li) detectors with effective energy ranging from 1 keV to 60 keV. The results show that, the X-ray emission from the formed HA is closely correlated with the charge state of the projectile ions, and weakly correlated with the velocity of the projectile ions. For example, it was found that when Ar^18+ ions interact with Be-target, the yield of K X-ray with character energy of 3.0 keV is 7.2×10^-3 per ion, which is two times and 5 order of magnitude higher than those in the interactions of Ar^17+ and Ar^16+ ions respectively. When Ar15+ ions interact with the same targets, the Argon K X-ray would be too feeble to be detected. The X-ray yield with single ion in this experiment can be represented by the following equation,
文摘The X-rays with energy from 1 keV to 60 keV in the interaction of highly charged ions (HCI) with a variety of solid surfaces were investigated at the research platform for atomic physics with the electron cyclone resonance (ECR) ion resource at IMP. We altered the projectile kinetic energy from 150 keV to about 400 keV. The X-ray excited by the projectile with the surface is shown in Fig.l, and a threshold of the projectile kinetic energy for this excitation is observed. Combining the colliding theory of classic electrodynamics with the concept of quantized orbits, we crudely give this threshold energy Tm as follows,
