Experimental and theoretical cross sections for K-shell ionization of 52Te, 73Ta, and 83Bi by electrons with energies up to 100 keV

dc.creatorSANTOS, O.C.B.
dc.creatorVANIN, V.R.
dc.creatorMAIDANA, N.L.
dc.creatorMARTINS, M.N.
dc.creatorTABACNIKS, M.H.
dc.creatorRODRIGUES, C.L.
dc.creatorSILVA, T.F.
dc.creatorSANTOS, A.D.
dc.creatorBARROS, S.F.
dc.creatorGARCIA-ALVAREZ, J.A.
dc.creatorKOSKINAS, M.F.
dc.creatorFERNANDEZ-VAREA, J.M.
dc.creatorPINDZOLA, M.S.
dc.date2019
dc.date2019-12-10T14:17:39Z
dc.date2019-12-10T14:17:39Z
dc.date.accessioned2023-09-28T14:12:45Z
dc.date.available2023-09-28T14:12:45Z
dc.identifier2469-9926
dc.identifierhttp://repositorio.ipen.br/handle/123456789/30429
dc.identifier2
dc.identifier100
dc.identifier10.1103/PhysRevA.100.022703
dc.identifier0000-0001-8407-9833
dc.identifier67.386
dc.identifier78.00
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/9000658
dc.descriptionIn this work we present a combined experimental and theoretical study of K-shell ionization by electrons with energies close to the threshold. The ionization cross sections of the K shells of Te, Ta, and Bi atoms have been measured up to 100 keV with uncertainties ranging from 4% to 8%. In turn, calculations have been done using the subconfiguration average distorted-wave (SCADW) method, which includes the full two-body retarded electromagnetic interaction between the projectile and target electrons. The predictions of the SCADW method are in good agreement with the experimental data. In contrast, theoretical cross sections based on first-order perturbation theory where the transverse interaction is computed with plane waves instead of distorted waves underestimate the SCADW values as well as the experimental data. The difference between the two investigated ab initio formalisms grows with atomic number, being 3% for Te, 15% for Ta, and 25% for Bi. An additional comparison of both theoretical approaches with recent measurements for Au K supports the conclusion that the SCADW method reproduces well the experimental K-shell ionization cross section of atoms with intermediate to large Z near the threshold.
dc.descriptionFunda????o de Amparo ?? Pesquisa do Estado de S??o Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Cient??fico e Tecnol??gico (CNPq)
dc.descriptionFAPESP: 15/14530-7
dc.descriptionCNPq: 131658/2014-0; INCT-FNA 464898/2014-5
dc.format022703-1 - 022703-9
dc.relationPhysical Review A
dc.rightsopenAccess
dc.subjectionization
dc.subjectinner-shell ionization
dc.subjectk shell
dc.subjecttellurium
dc.subjecttantalum
dc.subjectbismuth
dc.subjectcross sections
dc.subjecttheoretical data
dc.subjectexperimental data
dc.subjectdata analysis
dc.titleExperimental and theoretical cross sections for K-shell ionization of 52Te, 73Ta, and 83Bi by electrons with energies up to 100 keV
dc.typeArtigo de peri??dico
dc.coverageI


Este ítem pertenece a la siguiente institución