Recoil atomic

Dodonoy A I, Mashkova E S and Molchanov V A 1989 Medium-energy ion scattering by solid surfaces. Ill ejection of fast recoil atoms from solids under ion bombardment Rad. Eff. Def Sol. 110 227-341... 

Kim C, Hdfner C, Bykov V and Rabalais J W 1997 Element-, time-, and spatially-resolved images of scattered and recoiled atoms Nucl. Instrum. Methods B 125 315-22... 

The material factor A contains the material parameters and is a description of the number of recoil atoms that can escape from the soUd. In one description (31) (eq. 18), N is the atomic density of target atoms and is the surface binding energy. 

For quantitative evaluation of ERDA energy spectra considerable deviations of recoil cross-sections from the Rutherford cross-section (Eq. 3.51) must be taken into account. Light projectiles with high energy can penetrate the Coulomb barrier of the recoil atom the nuclear interaction generally leads to a cross-section that is larger than ctr, see Eq. (3.51). For example, the H recoil cross-section for MeV He projec-... 

The energies of recoil atoms and scattered projectiles are usually measured by solid state SBDs. For identification of particles with same energy but different atomic number an additional quantity (TOF, AF, or Ne) must be measured in coincidence with the energy. Usually, both quantities (energy and the identification quantity) are then stored in a two-dimensional multichannel analyzer [3.164]. Only for the sim-... 

The effect of recoil is three-fold firstly, the recoil atom is displaced from the site where it was located. It can thus be ejected directly into an adjacent phase. The displacement distance is approximately 40 nm, depending on the substrate (Harvey 1962) and is known as the range. It can be estimated using the following equation ... 

To convert this energy into the density of low energy recoil atoms. 

To determine the number of recoil atoms which reach the very surface. 

Inorganic compounds may be more stable to radiation damage than organic compounds, and their decomposition products are less deleterious. Accordingly, a search was made for inorganic compounds which would contain these trivalent ions in a nonexchangeable state and, at the same time, allow recoil atoms ejected from their position in the structure to be separated. Szilard-Chalmers reactions have been reported for certain inorganic systems, for example clays ( ), but yields and enrichment factors were both low. 

The contrast between the behavior of recoil atoms and those produced in the carbon arc may reflect the larger kinetic energy of the former. However, even in solid xenon at low temperatures the recoil atoms yield no spiropentane from ethylene.17 It has been suggested that the initial carbon atom-olefin adducts may partition themselves differently for different olefins.17... 

A recoil atom is an atom that undergoes a sudden change or reversal of its direction of motion as the result of the emission by it of a particle or radiation in a nuclear reaction. 

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