Χαρακτηρισμός της νέας πειραματικής γραμμής νετρονίων NEAR στο n_TOF στο CERN - Κώδικας MCNP

Κόπανος, Σωτήρης Αλέξανδρος; Kopanos, Sotiris Alexandros

dc.contributor.author	Κόπανος, Σωτήρης Αλέξανδρος	el
dc.contributor.author	Kopanos, Sotiris Alexandros	en
dc.date.accessioned	2023-01-16T10:58:12Z
dc.date.available	2023-01-16T10:58:12Z
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/56721
dc.identifier.uri	http://dx.doi.org/10.26240/heal.ntua.24419
dc.rights	Default License
dc.subject	Νετρόνια	el
dc.subject	Ενεργοποίηση	el
dc.subject	Χαρακτηρισμός	el
dc.subject	MCNP	en
dc.title	Χαρακτηρισμός της νέας πειραματικής γραμμής νετρονίων NEAR στο n_TOF στο CERN - Κώδικας MCNP	el
heal.type	bachelorThesis
heal.classification	Physics	en
heal.language	el
heal.access	free
heal.recordProvider	ntua	el
heal.publicationDate	2022-10-06
heal.abstract	A new experimental area, the NEAR Station, has recently been setup at the n_TOF facility at CERN. It is located at ~3m distance from the spallation target, just outside the target-moderator shielding wall [1]. The main purpose of the new area is to exploit the extremely high neutron flux in the vicinity of the spallation target to perform irradiation and activation measurements on short-lived radioactive isotopes or on small mass samples, of interest for Nuclear Astrophysics. The use of a suitable moderator and of filters of different thickness, is currently investigated, as is expected to produce Maxwellian-like neutron spectra of different temperatures, enabling challenging measurement of Maxwellian Averaged Cross Sections for nuclear astrophysics and other application purposes. Additionally, the extremely high intensity of the neutron beam is very convenient for measurements related to technological applications, such as material and fusion-technology related studies [1]. Following the completion of the NEAR Station, an extensive campaign for its commissioning has been undertaken, aiming at determining the spectral features of the neutron beam. The measurements rely on the use of the multi-foil activation method, as well as of a thermalization detector based on the activation of gold foils at different depths inside a moderator along the neutron beam direction (see contribution to this conference [2]). In this presentation, the main characteristics of the newly built NEAR Station will be presented, together with Monte Carlo simulations of the moderator/filter assembly and of the foreseen physics program. Finally, the first results of the commissioning campaign will be reported.	el
heal.advisorName	Vlastou, Roza	en
heal.committeeMemberName	Kokkoris, Michael	en
heal.committeeMemberName	Vlastou, Roza	en
heal.committeeMemberName	Diakaki, Maria	en
heal.academicPublisher	Εθνικό Μετσόβιο Πολυτεχνείο. Σχολή Εφαρμοσμένων Μαθηματικών και Φυσικών Επιστημών. Τομέας Φυσικής	el
heal.academicPublisherID	ntua
heal.numberOfPages	110 σ.	el
heal.fullTextAvailability	false