X-ray and gamma irradiation effects on dipole defects in CaF2 : La, Yb, Al

dc.creatorArantes, L O
dc.creatorFerreira, R B
dc.creatorCarvalhaes, R P M
dc.creatorBlak, Ana Regina
dc.date.accessioned2012-10-20T04:11:57Z
dc.date.accessioned2018-07-04T15:40:55Z
dc.date.available2012-10-20T04:11:57Z
dc.date.available2018-07-04T15:40:55Z
dc.date.created2012-10-20T04:11:57Z
dc.date.issued2008
dc.identifierRADIATION MEASUREMENTS, v.43, n.2/Jun, p.227-230, 2008
dc.identifier1350-4487
dc.identifierhttp://producao.usp.br/handle/BDPI/29435
dc.identifier10.1016/j.radmeas.2007.09.020
dc.identifierhttp://dx.doi.org/10.1016/j.radmeas.2007.09.020
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1626075
dc.description.abstractImpurity-interstitial dipoles in calcium fluoride solutions with Al3+, Yb3+ and La3+ fluorides were studied using the thermally stimulated depolarization current (TSDC) technique. The dipolar complexes are formed by substitutional trivalent ions in Ca2+ sites and interstitial fluorine in nearest neighbor sites. The relaxations observed at 150 K are assigned to dipoles nnR(S)(3+)- F-i(-) (R-S = La or Yb). The purpose of this work is to study the processes of energy storage in the fluorides following X-ray and gamma irradiation. Computer modelling techniques are used to obtain the formation energy of dipole defects. (C) 2007 Elsevier Ltd. All rights reserved.
dc.languageeng
dc.publisherPERGAMON-ELSEVIER SCIENCE LTD
dc.relationRadiation Measurements
dc.rightsCopyright PERGAMON-ELSEVIER SCIENCE LTD
dc.rightsrestrictedAccess
dc.subjectthermally stimulated depolarization currents
dc.subjectcalcium fluoride
dc.subjectstatic computer simulation
dc.titleX-ray and gamma irradiation effects on dipole defects in CaF2 : La, Yb, Al
dc.typeArtículos de revistas


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