| 1. Identity statement | |
| Reference Type | Journal Article |
| Site | mtc-m21b.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identifier | 8JMKD3MGP5W34M/3HE6FC2 |
| Repository | sid.inpe.br/mtc-m21b/2014/11.18.23.57.45 (restricted access) |
| Last Update | 2014:12.18.18.13.42 (UTC) administrator |
| Metadata Repository | sid.inpe.br/mtc-m21b/2014/11.18.23.57.46 |
| Metadata Last Update | 2018:06.04.03.04.30 (UTC) administrator |
| DOI | 10.1088/1748-0221/9/10/P10001 |
| ISSN | 1748-0221 |
| Label | scopus 2014-11 PaulaFuAgCaBa:2014:HiSuNi |
| Citation Key | PaulaFuAgOlCaBa:2014:HiSuNi |
| Title | High-Q superconducting niobium cavities for gravitational wave detectors  |
| Year | 2014 |
| Access Date | 2024, May 13 |
| Type of Work | journal article |
| Secondary Type | PRE PI |
| Number of Files | 1 |
| Size | 1356 KiB |
| 2. Context | |
| Author | 1 Paula, L. A. N. De 2 Furtado, Sérgio Ricardo 3 Aguiar, Odylio Denys de 4 Oliveira Jr., N. F. 5 Castro, Pedro José de 6 Barroso, Joaquim José |
| Resume Identifier | 1 2 8JMKD3MGP5W/3C9JJ8C 3 8JMKD3MGP5W/3C9JJ2A 4 5 8JMKD3MGP5W/3C9JJ44 |
| Group | 1 2 AST-CEA-SPG-INPE-MCTI-GOV-BR 3 DAS-CEA-INPE-MCTI-GOV-BR 4 5 LAP-CTE-INPE-MCTI-GOV-BR 6 LAP-CTE-INPE-MCTI-GOV-BR |
| Affiliation | 1 Physics Department, Technological Institute of Aeronautics - ITA, Praça Marechal-do-Ar Eduardo Gomes 50São José dos Campos, Brazil; Department of Mechanics and Material Physics, University of Sao Paulo - USP, Rua do Matão 187São Paulo, Brazil 2 Instituto Nacional de Pesquisas Espaciais (INPE) 3 Instituto Nacional de Pesquisas Espaciais (INPE) 4 Department of Mechanics and Material Physics, University of Sao Paulo - USP, Rua do Matão 187São Paulo, Brazil 5 Instituto Nacional de Pesquisas Espaciais (INPE) 6 Instituto Nacional de Pesquisas Espaciais (INPE) |
| e-Mail Address | marcelo.pazos@inpe.br |
| Journal | Journal of Instrumentation |
| Volume | 9 |
| Number | 10 |
| History (UTC) | 2018-06-04 03:04:30 :: administrator -> marcelo.pazos@inpe.br :: 2014 |
| 3. Content and structure | |
| Is the master or a copy? | is the master |
| Content Stage | completed |
| Transferable | 1 |
| Content Type | External Contribution |
| Version Type | publisher |
| Keywords | Gravitational wave detectors Microwave systems Niobium cavity Optimisations Resonant detector |
| Abstract | The main purpose of this work is to optimize the electric Q-factor of superconducting niobium klystron cavities to be used in parametric transducers of the Mario Schenberg gravitational wave detector. Many cavities were manufactured from niobium with relatively high tantalum impurities (1420 ppm) and they were cryogenically tested to determine their resonance frequencies, unloaded electrical quality factors (Q0) and electromagnetic couplings. These cavities were closed with a flat niobium plate with tantalum impurities below 1000 ppm and an unloaded electrical quality factors of the order of 105 have been obtained. AC conductivity of the order of 1012 S/m has been found for niobium cavities when matching experimental results with computational simulations. These values for the Q-factor would allow the detector to reach the quantum limit of sensitivity of < 10-22 Hz-1/2 in the near future, making it possible to search for gravitational waves around 3.2 kHz. The experimental tests were performed at the laboratories of the National Institute for Space Research (INPE) and at the Institute for Advanced Studies (IEAv - CTA). |
| Area | CEA |
| Arrangement 1 | urlib.net > LABAP > High-Q superconducting niobium... |
| Arrangement 2 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDAS > High-Q superconducting niobium... |
| Arrangement 3 | urlib.net > BDMCI > Fonds > Produção pgr ATUAIS > AST > High-Q superconducting niobium... |
| doc Directory Content | access |
| source Directory Content | there are no files |
| agreement Directory Content | there are no files |
| 4. Conditions of access and use | |
| Language | en |
| Target File | 1748-0221_9_10_P10001.pdf |
| User Group | administrator marcelo.pazos@inpe.br self-uploading-INPE-MCTI-GOV-BR |
| Reader Group | administrator marcelo.pazos@inpe.br |
| Visibility | shown |
| Read Permission | deny from all and allow from 150.163 |
| Update Permission | not transferred |
| 5. Allied materials | |
| Linking | Trabalho não Vinculado à Tese/Dissertação |
| Mirror Repository | iconet.com.br/banon/2006/11.26.21.31 |
| Next Higher Units | 8JMKD3MGPCW/3ET2RFS 8JMKD3MGPCW/3ETR8EH 8JMKD3MGPCW/3F2NE4L |
| Citing Item List | sid.inpe.br/bibdigital/2013/10.01.00.07 4 sid.inpe.br/mtc-m21/2012/07.13.15.00.10 2 sid.inpe.br/bibdigital/2013/09.25.21.49 1 |
| Dissemination | WEBSCI; PORTALCAPES; COMPENDEX; SCOPUS. |
| Host Collection | sid.inpe.br/mtc-m21b/2013/09.26.14.25.20 |
| 6. Notes | |
| Empty Fields | alternatejournal archivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel electronicmailaddress format isbn lineage mark month nextedition notes orcid pages parameterlist parentrepositories previousedition previouslowerunit progress project rightsholder schedulinginformation secondarydate secondarykey secondarymark session shorttitle sponsor subject tertiarytype url |
| 7. Description control | |
| e-Mail (login) | marcelo.pazos@inpe.br |
| update | |