Evaluation of ion microprobe mass analysis by deuteron beam.

Microscopical speciation analysis with laser microprobe mass

This paper presents a set of data which compares the potential and limitations of laser microprobe mass spectrometry (TOFLMMS and FT-LMMS) and static secondary ion mass spectrometry (S-SIMS) for inorganic speciation at a microscopical level. In general LMMS yields prominent signals of adduct ions consisting of the intact molecule combined with a stable ion, which allows a direct identification ...

Dynamic Stability Analysis of a Beam Excited by a Sequence of Moving Mass Particles

In this paper, the dynamic stability analysis of a simply supported beam carrying a sequence of moving masses is investigated. Many applications such as motion of vehicles or trains on bridges, cranes transporting loads along their span, fluid transfer pipe systems and the barrel of different weapons can be represented as a flexible beam carrying moving masses. The periodical traverse of masses...

evaluation of fat atrophy in patients with dermis fat graft of orbit by ct-scan

چکیده ندارد.

Ion microprobe analysis a review of geological applications

In ion microprobe analysis the specimen is bombarded with a focussed ion beam a few #m in diameter and the secondary ions produced are accelerated into the entrance slit of a mass spectrometer. An outline of the salient features of the instrument is given here, together with an account of the methods used for quantitative elemental and isotopic analysis. The major part of this paper consists of...

Ion beam analysis.