| 1. Identity statement | ||||
| Reference Type | Journal Article | |||
| Site | mtc-m21b.sid.inpe.br | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identifier | 8JMKD3MGP3W34P/3J9RMFP | |||
| Repository | sid.inpe.br/mtc-m21b/2015/04.07.16.47 (restricted access) | |||
| Last Update | 2015:04.07.16.48.14 (UTC) administrator | |||
| Metadata Repository | sid.inpe.br/mtc-m21b/2015/04.07.16.47.40 | |||
| Metadata Last Update | 2018:06.04.02.55.21 (UTC) administrator | |||
| DOI | 10.1088/1748-0221/10/03/P03001 | |||
| ISSN | 1748-0221 | |||
| Citation Key | PaulaFerrCarvAgui:2015:HiSeNi | |||
| Title | High sensitivity niobium parametric transducer for the Mario Schenberg gravitational wave detector  | |||
| Year | 2015 | |||
| Access Date | 2024, May 19 | |||
| Type of Work | journal article | |||
| Secondary Type | PRE PI | |||
| Number of Files | 1 | |||
| Size | 3415 KiB | |||
| 2. Context | ||||
| Author | 1 Paula, L. A. N. 2 Ferreira, Elvis Camilo 3 Carvalho, N. C. 4 Aguiar, Odylio Denys de | |||
| Resume Identifier | 1 2 3 4 8JMKD3MGP5W/3C9JJ2A | |||
| Group | 1 2 AST-CEA-SPG-INPE-MCTI-GOV-BR 3 4 DAS-CEA-INPE-MCTI-GOV-BR | |||
| Affiliation | 1 Instituto Tecnológico de Aeronáutica (ITA) 2 Instituto Nacional de Pesquisas Espaciais (INPE) 3 University of Western Australia 4 Instituto Nacional de Pesquisas Espaciais (INPE) | |||
| Author e-Mail Address | 1 leandroifusp@yahoo.com 2 elvis.ferreira@inpe.br 3 4 odylio.aguiar@inpe.br | |||
| Journal | Journal of Instrumentation | |||
| Volume | 10 | |||
| History (UTC) | 2015-04-07 16:47:40 :: simone -> administrator :: 2018-06-04 02:55:21 :: administrator -> simone :: 2015 | |||
| 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 | Instrument optimisation resonant deterctors modeling of microwave systems | |||
| Abstract | Parametric transducers can work below the quantum limit of sensitivity for resonant mass gravitational wave detectors. This makes them a promising alternative for electromechanical transductance for such detectors. These transducers consist of a reentrant superconducting niobium cavity coupled to a mass-spring system with three mechanical modes. These cavities have a central post responsible for creating a narrow axial gap between its top and the cavity wall, which is a resonant membrane. Their displacement sensitivity (df/dx) increases as the gap spacing decreases. However, this is not a linear relationship and the dimensioning of the cavity becomes critical if the gap is of the order of a few microns. In this paper, we describe how to obtain a gap spacing of ~ 3 μ m and also the development of parametric transducers that will be employed in the coming experimental runs of the Schenberg gravitational wave antenna. Mechanical thinning methods were performed followed by mechanical and electrical frequency measurements to tune the device to operate at the required frequencies. The main results present better frequency stability and an improvement of df/dx by one order of magnitude higher than the preceding models. These results will allow us to reach the quantum limit of detector sensitivity of ~ 10−22 Hz−1/2 in the near future, making it possible to search for gravitational waves around 3.2 kHz. | |||
| Area | CEA | |||
| Arrangement 1 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDAS > High sensitivity niobium... | |||
| Arrangement 2 | urlib.net > BDMCI > Fonds > Produção pgr ATUAIS > AST > High sensitivity niobium... | |||
| doc Directory Content | access | |||
| source Directory Content | there are no files | |||
| agreement Directory Content |
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| 4. Conditions of access and use | ||||
| Language | en | |||
| User Group | self-uploading-INPE-MCTI-GOV-BR simone | |||
| Reader Group | administrator simone | |||
| Visibility | shown | |||
| Read Permission | deny from all and allow from 150.163 | |||
| Update Permission | not transferred | |||
| 5. Allied materials | ||||
| Linking | 8JMKD3MGP7W/3FMELKS | |||
| Mirror Repository | urlib.net/www/2011/03.29.20.55 | |||
| Next Higher Units | 8JMKD3MGPCW/3ETR8EH 8JMKD3MGPCW/3F2NE4L | |||
| Citing Item List | sid.inpe.br/mtc-m21/2012/07.13.14.57.26 2 | |||
| 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 e-mailaddress format isbn label lineage mark month nextedition notes number orcid pages parameterlist parentrepositories previousedition previouslowerunit progress project rightsholder schedulinginformation secondarydate secondarykey secondarymark session shorttitle sponsor subject targetfile tertiarytype url | |||
| 7. Description control | ||||
| e-Mail (login) | simone | |||
| update | ||||