The paper presents some preliminary results of PSS performances measured by using various exciting sources.The energy resolution of 25eV for Mn Kα and of -15eV for Ti Kα is obtained.respectively,for various exciting...The paper presents some preliminary results of PSS performances measured by using various exciting sources.The energy resolution of 25eV for Mn Kα and of -15eV for Ti Kα is obtained.respectively,for various exciting sources,the satellite structure of Si Kα has been clearly observed.The peak of Cr Kβ and of Mn Kα in a stainless steel sample has also been resolved and the detectable amount of Ti has been less than 10^-9 g. The comparisons of these results attempt to find more suitable exciting source for a different application of PSS and to discuss the possibility of application carried out by PSS combined with a new μ-X-ray exciting source.展开更多
It is well known that ultrasonic pulses can be generated in condensed materials by thermal sources caused by intense particles beams bombardment, such as the beams of photons, electrons, protons, and ions. For energy ...It is well known that ultrasonic pulses can be generated in condensed materials by thermal sources caused by intense particles beams bombardment, such as the beams of photons, electrons, protons, and ions. For energy ion beam impinging on a material, the beam deposits its energy gradually along the ion trajectory and a cylinder of heated material is created. The pressure in the heated zone initializes a two-dimensional shock wave or ultrasonic wave (along the radial direction as well along the beam direction). We refer this effect展开更多
文摘The paper presents some preliminary results of PSS performances measured by using various exciting sources.The energy resolution of 25eV for Mn Kα and of -15eV for Ti Kα is obtained.respectively,for various exciting sources,the satellite structure of Si Kα has been clearly observed.The peak of Cr Kβ and of Mn Kα in a stainless steel sample has also been resolved and the detectable amount of Ti has been less than 10^-9 g. The comparisons of these results attempt to find more suitable exciting source for a different application of PSS and to discuss the possibility of application carried out by PSS combined with a new μ-X-ray exciting source.
文摘It is well known that ultrasonic pulses can be generated in condensed materials by thermal sources caused by intense particles beams bombardment, such as the beams of photons, electrons, protons, and ions. For energy ion beam impinging on a material, the beam deposits its energy gradually along the ion trajectory and a cylinder of heated material is created. The pressure in the heated zone initializes a two-dimensional shock wave or ultrasonic wave (along the radial direction as well along the beam direction). We refer this effect
