TY - JOUR
T1 - Direct observation of the primary state of damage of ion-irradiated tungsten. II. Definitions, analyses and results
AU - Current, Michael I.
AU - Wei, Ching Yeu
AU - Seidman, David N.
N1 - Funding Information:
We wish to thank Dr. D. Pramanik for useful discussions, Drs. J. P. Biersack and L. G. Haggmark for the TRIM code and Dr. A. Macrander for help with the TRIM Monte Carlo program. D.N.S. wishes to thank the John Simon Guggenheim Memorial Foundation for a fellowship (1980-81) during which a large part of this paper was written. This research was supported by the U.S. Department of Energy under Contract No. DE-AC02-76ER03158. Additional support was received from the National Science Foundation through the use of the technical facilities of the Materials Science Center at Cornell University.
PY - 1983/3
Y1 - 1983/3
N2 - In a previous paper (Wei, Current and Seidman 1981) the results of an extensive field-ion microscope investigation of the vacancy portion of the primary state of damage of ion-irradiated tungsten specimens were presented. The vacancies were contained in depleted zones (DZs) which had been created, at ≤ 15 K, by a variety of single projectile ions with initial energies in the range 15 to 70 keV. In this paper (Part II) the definitions of all the principal quantities used to characterize the three-dimensional vacancy population within a DZ are presented; 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-neighbour cluster functions. All the DZs are analysed in great detail, using these principal quantities, and the results are presented in graphical form. In addition, many other detailed physical proporties of DZs are presented.
AB - In a previous paper (Wei, Current and Seidman 1981) the results of an extensive field-ion microscope investigation of the vacancy portion of the primary state of damage of ion-irradiated tungsten specimens were presented. The vacancies were contained in depleted zones (DZs) which had been created, at ≤ 15 K, by a variety of single projectile ions with initial energies in the range 15 to 70 keV. In this paper (Part II) the definitions of all the principal quantities used to characterize the three-dimensional vacancy population within a DZ are presented; 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-neighbour cluster functions. All the DZs are analysed in great detail, using these principal quantities, and the results are presented in graphical form. In addition, many other detailed physical proporties of DZs are presented.
UR - http://www.scopus.com/inward/record.url?scp=0020719024&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0020719024&partnerID=8YFLogxK
U2 - 10.1080/01418618308245236
DO - 10.1080/01418618308245236
M3 - Article
AN - SCOPUS:0020719024
SN - 0141-8610
VL - 47
SP - 407
EP - 433
JO - Philosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties
JF - Philosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties
IS - 3
ER -