Low energy muon spin rotation and point contact tunneling applied to niobium films for SRF cavities

Muon spin rotation (muSR) and point contact tunneling (PCT) are used since several years for bulk niobium studies. Here we present studies on niobium thin film samples of different deposition techniques (diode, magnetron and HIPIMS) and compare the results with RF measurements and bulk niobium resul...

Descripción completa

Detalles Bibliográficos
Autores principales: Junginger, Tobias, Calatroni, Sergio, Prokscha, Thomas, Proslier, Thomas, Salman, Zaher, Suter, Andreas, Terenziani, Giovanni, Zasadzinski, John
Lenguaje:eng
Publicado: 2015
Materias:
Accelerators and Storage Rings
Acceso en línea:https://dx.doi.org/10.18429/JACoW-SRF2015-TUPB042
http://cds.cern.ch/record/2288265
_version_ 1780956152134107136
author Junginger, Tobias
Calatroni, Sergio
Prokscha, Thomas
Proslier, Thomas
Salman, Zaher
Suter, Andreas
Terenziani, Giovanni
Zasadzinski, John
author_facet Junginger, Tobias
Calatroni, Sergio
Prokscha, Thomas
Proslier, Thomas
Salman, Zaher
Suter, Andreas
Terenziani, Giovanni
Zasadzinski, John
author_sort Junginger, Tobias
collection CERN
description Muon spin rotation (muSR) and point contact tunneling (PCT) are used since several years for bulk niobium studies. Here we present studies on niobium thin film samples of different deposition techniques (diode, magnetron and HIPIMS) and compare the results with RF measurements and bulk niobium results. It is consistently found from muSR and RF measurements that HIPIMS can be used to produce thin films of high RRR. Hints for magnetism are especially found on the HIPIMS samples. These could possibly contribute to the field dependent losses of superconducting cavities, which are strongly pronounced on niobium on copper cavities.
id oai-inspirehep.net-1482084
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2015
record_format invenio
spelling oai-inspirehep.net-14820842019-09-30T06:29:59Zdoi:10.18429/JACoW-SRF2015-TUPB042http://cds.cern.ch/record/2288265engJunginger, TobiasCalatroni, SergioProkscha, ThomasProslier, ThomasSalman, ZaherSuter, AndreasTerenziani, GiovanniZasadzinski, JohnLow energy muon spin rotation and point contact tunneling applied to niobium films for SRF cavitiesAccelerators and Storage RingsMuon spin rotation (muSR) and point contact tunneling (PCT) are used since several years for bulk niobium studies. Here we present studies on niobium thin film samples of different deposition techniques (diode, magnetron and HIPIMS) and compare the results with RF measurements and bulk niobium results. It is consistently found from muSR and RF measurements that HIPIMS can be used to produce thin films of high RRR. Hints for magnetism are especially found on the HIPIMS samples. These could possibly contribute to the field dependent losses of superconducting cavities, which are strongly pronounced on niobium on copper cavities.oai:inspirehep.net:14820842015
spellingShingle Accelerators and Storage Rings
Junginger, Tobias
Calatroni, Sergio
Prokscha, Thomas
Proslier, Thomas
Salman, Zaher
Suter, Andreas
Terenziani, Giovanni
Zasadzinski, John
Low energy muon spin rotation and point contact tunneling applied to niobium films for SRF cavities
title Low energy muon spin rotation and point contact tunneling applied to niobium films for SRF cavities
title_full Low energy muon spin rotation and point contact tunneling applied to niobium films for SRF cavities
title_fullStr Low energy muon spin rotation and point contact tunneling applied to niobium films for SRF cavities
title_full_unstemmed Low energy muon spin rotation and point contact tunneling applied to niobium films for SRF cavities
title_short Low energy muon spin rotation and point contact tunneling applied to niobium films for SRF cavities
title_sort low energy muon spin rotation and point contact tunneling applied to niobium films for srf cavities
topic Accelerators and Storage Rings
url https://dx.doi.org/10.18429/JACoW-SRF2015-TUPB042
http://cds.cern.ch/record/2288265
work_keys_str_mv AT jungingertobias lowenergymuonspinrotationandpointcontacttunnelingappliedtoniobiumfilmsforsrfcavities
AT calatronisergio lowenergymuonspinrotationandpointcontacttunnelingappliedtoniobiumfilmsforsrfcavities
AT prokschathomas lowenergymuonspinrotationandpointcontacttunnelingappliedtoniobiumfilmsforsrfcavities
AT proslierthomas lowenergymuonspinrotationandpointcontacttunnelingappliedtoniobiumfilmsforsrfcavities
AT salmanzaher lowenergymuonspinrotationandpointcontacttunnelingappliedtoniobiumfilmsforsrfcavities
AT suterandreas lowenergymuonspinrotationandpointcontacttunnelingappliedtoniobiumfilmsforsrfcavities
AT terenzianigiovanni lowenergymuonspinrotationandpointcontacttunnelingappliedtoniobiumfilmsforsrfcavities
AT zasadzinskijohn lowenergymuonspinrotationandpointcontacttunnelingappliedtoniobiumfilmsforsrfcavities

Ejemplares similares