| 1. Identity statement | ||||
| Reference Type | Conference Paper (Conference Proceedings) | |||
| Site | mtc-m21c.sid.inpe.br | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identifier | 8JMKD3MGP3W34R/43L8URS | |||
| Repository | sid.inpe.br/mtc-m21c/2020/11.23.10.52 | |||
| Metadata Repository | sid.inpe.br/mtc-m21c/2020/11.23.10.52.57 | |||
| Metadata Last Update | 2022:01.04.01.35.38 (UTC) administrator | |||
| Secondary Key | INPE--PRE/ | |||
| Citation Key | OliveiraAgSoMeBaMi:2020:EvQfNi | |||
| Title | Evaluation of the Q-factor of niobium superconducting reentrant cavities treated by nitrogen plasma based ion implantation  | |||
| Year | 2020 | |||
| Access Date | 2024, May 19 | |||
| Secondary Type | PRE CN | |||
| 2. Context | ||||
| Author | 1 Oliveira, Rogério de Moraes 2 Aguiar, Odylio Denys de 3 Souza, Renata Lopes Gonçalves de 4 Mello, Carina Barros 5 Baldan, Maurício Ribeiro 6 Miranda, Edson Luiz de | |||
| Resume Identifier | 1 8JMKD3MGP5W/3C9JJ6L 2 8JMKD3MGP5W/3C9JJ2A 3 4 5 8JMKD3MGP5W/3C9JHTA | |||
| Group | 1 LABAP-COCTE-INPE-MCTIC-GOV-BR 2 DIDAS-CGCEA-INPE-MCTIC-GOV-BR 3 4 LABAP-COCTE-INPE-MCTIC-GOV-BR 5 LABAS-COCTE-INPE-MCTIC-GOV-BR | |||
| Affiliation | 1 Instituto Nacional de Pesquisas Espaciais (INPE) 2 Instituto Nacional de Pesquisas Espaciais (INPE) 3 4 Instituto Nacional de Pesquisas Espaciais (INPE) 5 Instituto Nacional de Pesquisas Espaciais (INPE) | |||
| Author e-Mail Address | 1 rogerio.oliveira@inpe.br 2 odylio.aguiar@inpe.br 3 4 carina.mello@inpe.br 5 mauricio.baldan@inpe.br | |||
| Conference Name | Encontro de Outono Sociedade Brasileira de Física | |||
| Conference Location | Online | |||
| Date | 23 a 26 nov. | |||
| History (UTC) | 2020-11-23 10:52:57 :: simone -> administrator :: 2020-11-24 20:31:56 :: administrator -> simone :: 2020 2020-12-14 11:50:36 :: simone -> administrator :: 2020 2022-01-04 01:35:38 :: administrator -> simone :: 2020 | |||
| 3. Content and structure | ||||
| Is the master or a copy? | is the master | |||
| Content Stage | completed | |||
| Transferable | 1 | |||
| Content Type | External Contribution | |||
| Abstract | Surface treatment is a mandatory stage to enhnace the performance (Q-factor) of the niobium superconducting cavities, which play the role of parametric transducers at the Mario Schenberg gravitational wave detector, located in the astrophsical department at INPE. In this work the respective cavities were treated by electropolishing (EP) and Plasma Based Ion Implantation (PBII), leading to an increase of the Q-factors by up two orders of magnitude. While EP is responsible for chemically removing the outer layer of the machined cavities, N-PBII is employed to implant nitrogen ions into Nb. In addition, Ar-PBII performed afterwards at high temperature (substrate heated) is a fundamental step used to remove contaminants (C and O) from the surface of Nb. A systematic investigation has been performed by strictly adjusting the parameters of the processes in order to reduce at maximum the amount of contaminants on the surfaces and to control the nitrogendoping, an important impurity to avoiod the formation of niobium hydrides, compounds with very low critical temperatures, as previously reported by experiments performed in Fermilab with Nb superconducting cavities1 . A set of characterization methods involving MEV/EDS, XRD and XPS were used to monitoring the morphology/elemental analysis, phase phormation and the chemical state of the elements, respectively. A correlation of the Q-factors (measured at 4k) with the chemical composition of the elements present on the surface of Nb is demonstrated, indicating a clear path to attain high performance of the cavities, helping with the enhancement of the sensitivity of the Mario Schenber detector. | |||
| Area | FISPLASMA | |||
| Arrangement 1 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > LABAS > Evaluation of the... | |||
| Arrangement 2 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > LABAP > Evaluation of the... | |||
| Arrangement 3 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDAS > Evaluation of the... | |||
| doc Directory Content | there are no files | |||
| source Directory Content | there are no files | |||
| agreement Directory Content |
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| 4. Conditions of access and use | ||||
| User Group | simone | |||
| Reader Group | administrator simone | |||
| Visibility | shown | |||
| Update Permission | not transferred | |||
| 5. Allied materials | ||||
| Next Higher Units | 8JMKD3MGPCW/3ESR3H2 8JMKD3MGPCW/3ET2RFS 8JMKD3MGPCW/3ETR8EH | |||
| Host Collection | urlib.net/www/2017/11.22.19.04 | |||
| 6. Notes | ||||
| Empty Fields | archivingpolicy archivist booktitle callnumber copyholder copyright creatorhistory descriptionlevel dissemination doi e-mailaddress edition editor format isbn issn keywords label language lineage mark mirrorrepository nextedition notes numberoffiles numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress readpermission rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle size sponsor subject targetfile tertiarymark tertiarytype type url versiontype volume | |||
| 7. Description control | ||||
| e-Mail (login) | simone | |||
| update | ||||