Direct observation of the primary state of damage of ion-irradiated tungsten. II. Definitions, analyses, and results
In a previous paper (Wei, Current and Seidman, 1981) we have presented the results of an extensive field-ion microscope investigation of the vacancy portion of the primary state of damage of ion-irradiated tungsten specimens. The vacancies were contained in depleted zones (DZs) which had been created, at less than or equal to 15 K, by a variety of single projectile ions with initial energies in the range 15 to 70 keV. In this paper (Part II) we present the definitions of all the principal quantities used to characterize the three-dimensional vacancy population within a DZ; that is, the number of vacancies, the average diameter and orientation of a DZ with respect to the incident ion beam, the average vacancy concentration within a DZ, the radial distribution functions, and the first-nearest neighbor cluster functions. All of the DZs are analyzed in great detail employing these principal quantities and the results are presented in graphical form. In addition, many other detailed physical properties of DZs are presented.
- Research Organization:
- Cornell Univ., Ithaca, NY (USA)
- DOE Contract Number:
- AC02-76ER03158
- OSTI ID:
- 7087462
- Report Number(s):
- DOE/ER/03158-75; ON: DE83001861
- Country of Publication:
- United States
- Language:
- English
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