Abstract
Theoretical estimates of the dimensions of charged-particle tracks are conventionally based on Monte Carlo simulation of the trajectories of the primary as well as all secondary particles. The present note expresses the lateral width of a track by an integral over the primary cross-section and thus eliminates the need for simulating the primary trajectory. Expressions are given for the second-order and the fourth-order lateral average over the deposited-energy profile. These relations are applicable to tracks generated by either ionization or collision cascades. As an illustration, an analytical estimate is presented for the width of a collisional track generated by Au ions in Au which is of interest in current experimental work on sputtering by gold clusters.
| Original language | English |
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| Journal | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms |
| Volume | 164 |
| Pages (from-to) | 401-407 |
| Number of pages | 7 |
| ISSN | 0168-583X |
| DOIs | |
| Publication status | Published - Apr 2000 |
| Event | ICACS-18: 18th International Conference on Atomic Collisions in Solids - Odense, Denmark Duration: 3. Aug 1999 → 8. Aug 1999 |
Conference
| Conference | ICACS-18: 18th International Conference on Atomic Collisions in Solids |
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| City | Odense, Denmark |
| Period | 03/08/1999 → 08/08/1999 |
| Sponsor | Carlsbergs mindelegat for Brygger J.C.Jacobson, CRAC, Danfysik A/S, Elsevier Science Publishers, et al. |