منابع مشابه
Study of laser ablation using nano-second laser pulses
In this paper, the laser ablation process based on the irradiation of nanosecond pulsed lasers on a copper target surface in the presence of Helium gas is studied. The dynamical behaviors of the generated plasma in the helium gas and evaporated copper at the atmospheric pressure are examined using a laser pulse, laser wavelength of and intensity of 7×1010W/cm2. A one-dimensional thermal model ...
متن کاملPhoto-Spectro-Metric Study of CR-39 Detectors Irradiated with Heavy Ions
The fission fragments and heavy ions tracks in CR-39 detectors registered by Cf-252 radioactive source have been observed by using photo-spectrometric techniques. CR39 detectors were exposed at 5 cm distance from radioactive source for registering nuclear tracks created by nuclear particles emitted from Cf-252 radioactive source. Cr-39 detectors were etched in 6N NaOH solution at 70 C for 400 m...
متن کاملLaser Ablation Ion Source for Highly Charge-state Ion Beams*
The KEK Laser ablation ion source (KEK-LAIS) is under development in order to generate highly ionized metal and fully ionized carbon for future applications. Laser ablation experiments have been carried out by using NdYAG laser (0.75 J/pulse, 20 ns) at the KEK test bench. Basic parameters such as a charge-state spectrum and momentum spectrum of the plasma and extracted ion beam current have bee...
متن کاملResponse of CR-39 to Heat Exposure
As a nuclear track detector, CR-39 (polyallyl diglycol carbonate) is used to reveal the products of fusion reactions. Positioned around the OMEGA target chamber, pieces of CR-39 absorb and are damaged by ejected particles. The plastic is then etched in NaOH solution at 80°C for 6 hours, resulting in the formation of nuclear tracks visible under a digital microscope. The etching process also rev...
متن کاملMicrostructural Examination of Ni-ion Irradiated Fe-Ni-Cr Alloys Followed to Micro-zone Deformation
Examination of deformation microstructures induced by micro-indentation technique by means of transmission electron microscopy following an MV range metallic ion irradiation was performed in order to study the influence of irradiation-produced microstructural defects on plastic deformation behavior of materials. In this work, specimens of an Fe-Cr-Ni austenitic model ternary alloy before and af...
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ژورنال
عنوان ژورنال: Laser and Particle Beams
سال: 2007
ISSN: 0263-0346,1469-803X
DOI: 10.1017/s0263034607070231