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Inclusive production of recoils in 20Ne + 1H reactions ar 100 and 300 MeV/nucleon
Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Fysiska sektionen, Institutionen för fysik och astronomi, Kärn- och partikelfysik.
Vise andre og tillknytning
Manuskript (Annet vitenskapelig)
Identifikatorer
URN: urn:nbn:se:uu:diva-96830OAI: oai:DiVA.org:uu-96830DiVA, id: diva2:171536
Tilgjengelig fra: 2008-03-14 Laget: 2008-03-14 Sist oppdatert: 2010-01-13bibliografisk kontrollert
Inngår i avhandling
1. Fragmentation in Proton-Nucleus Reactions from 100 to 1400 MeV
Åpne denne publikasjonen i ny fane eller vindu >>Fragmentation in Proton-Nucleus Reactions from 100 to 1400 MeV
2008 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
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.

sted, utgiver, år, opplag, sider
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
Emneord
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)
Disputas
2008-04-04, Polhemsalen, Ångström Laboratoriet, Lägerhyddsvägen 1, Uppsala, 10:15 (engelsk)
Opponent
Veileder
Tilgjengelig fra: 2008-03-14 Laget: 2008-03-14 Sist oppdatert: 2010-01-11bibliografisk kontrollert

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