The changes in dimensions and lattice parameters produced by irradiation in two reactors with very different dose rate have been studied over the temperature range 400-700Β°C. In this range it is found that the activation energy associated with the equivalent temperature concept is not constant. It i
A study on ion-irradiation damage of graphite surface
β Scribed by Shigemi Yugo; Tadamasa Kimura; Yukio Kazumata
- Publisher
- Elsevier Science
- Year
- 1985
- Tongue
- English
- Weight
- 412 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0008-6223
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π SIMILAR VOLUMES
## 214 ABSTRACTS height, layer spacing and anisotropy were measured. Significant increases in preferred orientation resulted from irradiation at temperatures above 1100Β°C. The crystallite dimensional changes were derived from the measured dimensional changes and the preferred orientations. Compari
Electron spin centers were produced in crystalline graphite samples irradiated with 1 MeV protons (p'), deuterons (d+) and helium ions (4He2+) at 77Β°K. Under these conditions, the linear energy transfer (LET) increased in the sequence p+ < d+ < 'He'+. The paramagnetic properties were studied by elec
## Abstract MicroβRaman studies were performed on ionβirradiated oxidized silicon surfaces with different ion energies, ion fluences and subsequent hydrogenation to determine the efficacy and sensitivity for obtaining information on the degree of ion beamβinduced damage in very thin (__ca.__ 100 Γ )
Ah&net-Samples of highly oriented pyrolytic graphite doped substitutionally with B" to concentrations of 1100, 35,s and S2 ppm have been irradiated to doses of I,2 and 3 x lOI n/cm\* (Ni5\* (n, p) CoS8) at a temperature of 60Β°C. It is observed that the crystallite growth parallel to the hexagonal ax