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001 ocn747859941;

003 OCoLC;

005 20141212070851.0;

006 m d ;

007 cr bn|||||||||;

008 110825s2011 ncua ob 000 0 eng d;

035 a| (Sirsi) o747859941;

035 a| (OCoLC)747859941;

040 a| EREc| EREd| EREd| UtOrBLW;

049 a| EREE;

090 a| QD181.C9;

100 1 a| McLawhorn, Steven L.?| UNAUTHORIZED;

245 10 a| Secondary electron emission yields from fast fluorine ions on copper and amorphous solid water foils /c| Steven L. McLawhorn.;

260 a| [Greenville, N.C.] :b| East Carolina University,c| 2011.;

300 a| 126 pages :b| illustrations (some color), digital, PDF file;

336 a| text2| rdacontent;

337 a| computer2| rdamedia;

338 a| online resource2| rdacarrier;

538 a| System requirements: Adobe Reader.;

538 a| Mode of access: World Wide Web.;

502 b| Ph.D.c| East Carolina Universityd| 2011.;

500 a| Presented to the faculty of the Department of Physics.;

500 a| Advisor: Larry Toburen.;

500 a| Title from PDF t.p. (viewed Oct.. 7, 2011).;

520 3 a| The biological outcomes from charged particle radiation exposure are heavily influenced by the spatial patterns of energy distributed within the biological system. Monte Carlo track structure codes can be used to model these patterns of energy deposition event-by-event provided that cross sections for interactions are accurately known. Interaction cross sections in condensed phase materials cannot be directly measured and are therefore often estimated from theory. In order to test the accuracy of Monte Carlo electron transport codes double-differential electron emission yields [upsilon(epsilon,theta)], differential in energy [epsilon] and emission angle [theta], have been measured from condensed phase targets following impact by fast Fluorine ions. Secondary electron emission spectra were measured using electron time-of-flight energy analysis for emission angles from 15° to 155° with respect to the incident beam. Copper foil targets were studied independently and later used as a substrate for amorphous solid water targets which best simulate the liquid water medium commonly used in track structure codes. The electron emission yields collected will serve in the future as a benchmark for comparison with simulated yields from Monte Carlo transport codes to assess the modeling accuracy of the production and transport of secondary electrons in condensed phase materials.;

504 a| Includes bibliographical references.;

650 0 a| Copperx| Effect of radiation on.=| ^A1064814;

650 0 a| Fluorine.=| ^A11650;

650 0 a| Electronsx| Emission.=| ^A283789;

650 0 a| Radiation.=| ^A11388;

653 a| Biophysics;

700 1 a| Toburen, Larry H.?| UNAUTHORIZED;

710 2 a| East Carolina University.b| Department of Physics.?| UNAUTHORIZED;

856 40 z| Access via ScholarShipu| http://hdl.handle.net/10342/3673;

949 o| jgml;

994 a| C0b| ERE;

596 a| 1 4;

998 a| 2533146;

999 a| CLICK ON WEB ADDRESSw| ASISc| 1i| 2533146-1001l| JNETm| JOYNERr| Ys| Yt| JNE3ETDu| 8/26/2011x| ETDz| JERESOURCE;

999 a| CLICK ON WEB ADDRESSw| ASISc| 1i| 2533146-2001l| HSLELECm| HSLr| Ys| Yt| HEETDu| 8/26/2011x| ETDz| HERESOURCE;

Secondary electron emission yields from fast fluorine ions on copper and amorphous solid water foils / Steven L. McLawhorn.

Author/creator	McLawhorn, Steven L.
Other author	Toburen, Larry H.
Other author	East Carolina University. Department of Physics.
Format	Theses and dissertations
Publication Info	[Greenville, N.C.] : East Carolina University, 2011.
Description	126 pages : illustrations (some color), digital, PDF file
Supplemental Content	Access via ScholarShip
Subjects	Copper--Effect of radiation on. Fluorine. Electrons--Emission. Radiation.

Summary	The biological outcomes from charged particle radiation exposure are heavily influenced by the spatial patterns of energy distributed within the biological system. Monte Carlo track structure codes can be used to model these patterns of energy deposition event-by-event provided that cross sections for interactions are accurately known. Interaction cross sections in condensed phase materials cannot be directly measured and are therefore often estimated from theory. In order to test the accuracy of Monte Carlo electron transport codes double-differential electron emission yields [upsilon(epsilon,theta)], differential in energy [epsilon] and emission angle [theta], have been measured from condensed phase targets following impact by fast Fluorine ions. Secondary electron emission spectra were measured using electron time-of-flight energy analysis for emission angles from 15° to 155° with respect to the incident beam. Copper foil targets were studied independently and later used as a substrate for amorphous solid water targets which best simulate the liquid water medium commonly used in track structure codes. The electron emission yields collected will serve in the future as a benchmark for comparison with simulated yields from Monte Carlo transport codes to assess the modeling accuracy of the production and transport of secondary electrons in condensed phase materials.
General note	Presented to the faculty of the Department of Physics.
General note	Advisor: Larry Toburen.
General note	Title from PDF t.p. (viewed Oct.. 7, 2011).
Dissertation note	Ph.D. East Carolina University 2011.
Bibliography note	Includes bibliographical references.
Technical details	System requirements: Adobe Reader.
Technical details	Mode of access: World Wide Web.

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Secondary electron emission yields from fast fluorine ions on copper and amorphous solid water foils / Steven L. McLawhorn.

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