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TRINIDY: Transport of ions and neut...

University of Illinois at Urbana-Champaign.

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TRINIDY: Transport of ions and neutrons in dynamic materials.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	TRINIDY: Transport of ions and neutrons in dynamic materials./
作者:	Spencer, Joshua B.
面頁冊數:	265 p.
附註:	Adviser: Roy Axford.
Contained By:	Dissertation Abstracts International70-06B.
標題:	Computer Science. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3363129
ISBN:	9781109222647

TRINIDY: Transport of ions and neutrons in dynamic materials.
Spencer, Joshua B.

TRINIDY: Transport of ions and neutrons in dynamic materials. - 265 p.

Adviser: Roy Axford.

Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2009.

The TRansport of Ions and Neutrons In DYnamic (TRINIDY) materials code is a new code designed to study the effects of high fluence ion and neutron radiation on solid surfaces. This is done in a quasi-deterministic way, in that the transport of pseudo-particles within target material is accomplished via a Monte Carlo approach while the changes within the target are calculated deterministically by use of a one-dimensional Lagrangian mesh into which each of the tracked pseudo-particles are either deposited or removed. After each cycle the mesh is allowed to relax to a solid state areal density adjusted for its new constituency. As a natural corollary to the change in material compositions in each mesh element comes the resultant change in thickness of the target.

ISBN: 9781109222647Subjects--Topical Terms:

626642
Computer Science.

TRINIDY: Transport of ions and neutrons in dynamic materials.
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300 $a 265 p.
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500 $a Includes supplementary digital materials.
500 $a Source: Dissertation Abstracts International, Volume: 70-06, Section: B, page: .
502 $a Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2009.
520 $a The TRansport of Ions and Neutrons In DYnamic (TRINIDY) materials code is a new code designed to study the effects of high fluence ion and neutron radiation on solid surfaces. This is done in a quasi-deterministic way, in that the transport of pseudo-particles within target material is accomplished via a Monte Carlo approach while the changes within the target are calculated deterministically by use of a one-dimensional Lagrangian mesh into which each of the tracked pseudo-particles are either deposited or removed. After each cycle the mesh is allowed to relax to a solid state areal density adjusted for its new constituency. As a natural corollary to the change in material compositions in each mesh element comes the resultant change in thickness of the target.
520 $a Within TRINIDY charged particles are transported by means of a Binary Collision Approximation (BCA) where the elastic nuclear and inelastic electronic stopping forces are decoupled in such a way that the projectile only interacts with one target atom at a time. TRINIDY builds on the legacy of the Transport of Ions in Matter (TRIM), TRIM-SP and TRIDYN codes, in that it uses Biersack's analytic approximation to the quantum scattering integral and a screened coulomb potential as the basic for the charged particle transport. The neutron transport within TRINIDY is based on 32-group elastic scattering and total absorption cross-section data which has been derived from the ENDF7 continuous neutron data sets for each of the naturally occurring elements Hydrogen through Uranium.
520 $a This work is comprised of essentially three sections. First, there is a detailed technical description of the science behind TRINIDY. Secondly there will be a complete write-up of the validation and verification work done during the development of TRINIDY. Lastly, a series of practical demonstration of particular interest to the semi-conductor industry are presented to exemplify the use of TRINIDY within the realm of applied materials research.
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791 $a Ph.D.
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