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200 and 300 MeV/nucleon Nuclear Reactions Responsible for Single-Event Effecrs in Microelectronics
Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Fysiska sektionen, Institutionen för fysik och astronomi, Kärn- och partikelfysik.
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Artikel i tidskrift (Refereegranskat) Submitted
Identifikatorer
URN: urn:nbn:se:uu:diva-96829OAI: oai:DiVA.org:uu-96829DiVA, id: diva2:171535
Tillgänglig från: 2008-03-14 Skapad: 2008-03-14Bibliografiskt granskad
Ingår i avhandling
1. Fragmentation in Proton-Nucleus Reactions from 100 to 1400 MeV
Öppna denna publikation i ny flik eller fönster >>Fragmentation in Proton-Nucleus Reactions from 100 to 1400 MeV
2008 (Engelska)Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
Abstract [en]

The heaviest fragments, recoils, have been studied in proton and deuteron induced 28Si reactions and proton-20Ne reactions at 100-300 MeV per nucleon. Inclusive charge and angular distributions and coincidences between He nuclei and recoils have been compared to two theoretical models, Dubna Cascade Model and JAERI Quantum Molecular Dynamics. The overall agreement was good for the reactions with 28Si, however the angular distributions of He fragments could not be reproduced.

For the 20Ne reactions the recoil angular distributions were only reproduced for large angles. There was a significant underestimation at small angles and low recoil charge. α-clustering in the bombarding nucleus is a possible explanation for the deviations. In the 100 MeV per nucleon reactions all assumptions of the models may not be valid and the agreement was worst for these reactions.

In proton-natXe reactions intermediate mass fragments have been studied from 200 to 1400 MeV. Slow ramping was used to scan the energy. Charge distributions and a caloric curve have been compared to Cascade Fragmentation Evaporation Model. Charge distributions showed good agreement for fragments with Z<8 but the heavier fragments were underestimated.

Ort, förlag, år, upplaga, sidor
Uppsala: Acta Universitatis Upsaliensis, 2008. s. 73
Serie
Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology, ISSN 1651-6214 ; 402
Nyckelord
Nuclear physics, proton, deuteron, 20Ne, 28Si, Xe, nuclear reactions, inverse kinematics, recoils, intermediate mass fragments, angular distribution, DCM model, JQMD model, CFEM model, single event upset, Kärnfysik
Identifikatorer
urn:nbn:se:uu:diva-8504 (URN)978-91-554-7115-6 (ISBN)
Disputation
2008-04-04, Polhemsalen, Ångström Laboratoriet, Lägerhyddsvägen 1, Uppsala, 10:15 (Engelska)
Opponent
Handledare
Tillgänglig från: 2008-03-14 Skapad: 2008-03-14 Senast uppdaterad: 2010-01-11Bibliografiskt granskad

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