| 1. Identity statement | ||||
| Reference Type | Journal Article | |||
| Site | mtc-m21c.sid.inpe.br | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identifier | 8JMKD3MGP3W34R/42JUKQP | |||
| Repository | sid.inpe.br/mtc-m21c/2020/06.02.13.20 (restricted access) | |||
| Last Update | 2020:06.02.13.20.22 (UTC) simone | |||
| Metadata Repository | sid.inpe.br/mtc-m21c/2020/06.02.13.20.22 | |||
| Metadata Last Update | 2022:01.04.01.35.10 (UTC) administrator | |||
| DOI | 10.1016/j.ijheatmasstransfer.2020.119863 | |||
| ISSN | 0017-9310 | |||
| Citation Key | ConstâncioJúniorAdAgArMaOkWi:2020:SiEmFu | |||
| Title | Silicon emissivity as a function of temperature  | |||
| Year | 2020 | |||
| Month | Aug. | |||
| Access Date | 2024, May 19 | |||
| Type of Work | journal article | |||
| Secondary Type | PRE PI | |||
| Number of Files | 1 | |||
| Size | 2998 KiB | |||
| 2. Context | ||||
| Author | 1 Constâncio Júnior, Márcio 2 Adhikari, Rana X. 3 Aguiar, Odylio Denys de 4 Arai, Koji 5 Markowitz, Aaron 6 Okada, Marcos André 7 Wipf, Chris C. | |||
| Resume Identifier | 1 2 3 8JMKD3MGP5W/3C9JJ2A | |||
| Group | 1 YYY-CGCEA-INPE-MCTIC-GOV-BR 2 3 DIDAS-CGCEA-INPE-MCTIC-GOV-BR 4 5 6 DIDAS-CGCEA-INPE-MCTIC-GOV-BR | |||
| Affiliation | 1 Instituto Nacional de Pesquisas Espaciais (INPE) 2 California Institute of Technology 3 Instituto Nacional de Pesquisas Espaciais (INPE) 4 California Institute of Technology 5 California Institute of Technology 6 Instituto Nacional de Pesquisas Espaciais (INPE) 7 California Institute of Technology | |||
| Author e-Mail Address | 1 2 3 odylio.aguiar@inpe.br 4 5 6 marcos.okada@inpe.br | |||
| Journal | International Journal of Heat and Mass Transfer | |||
| Volume | 157 | |||
| Pages | e119863 | |||
| Secondary Mark | A1_INTERDISCIPLINAR A1_ENGENHARIAS_III A1_ENGENHARIAS_II A1_ENGENHARIAS_I A2_MATERIAIS A2_CIÊNCIAS_AGRÁRIAS_I B1_ENGENHARIAS_IV B1_BIOTECNOLOGIA | |||
| History (UTC) | 2020-06-02 13:20:22 :: simone -> administrator :: 2020-06-02 13:20:23 :: administrator -> simone :: 2020 2020-06-02 13:20:47 :: simone -> administrator :: 2020 2022-01-04 01:35:10 :: 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 | |||
| Version Type | publisher | |||
| Keywords | LIGO Silicon Thermal emissivity Gravitational waves | |||
| Abstract | In this paper we present the temperature-dependent emissivity of a silicon sample, estimated from its cool-down curve in a constant low temperature environment ( ~ 82K). The emissivity value follow a linear dependency in the 120260 K temperature range. This result is of great interest to the LIGO Voyager gravitational wave interferometer project since it would mean that no extra high thermal emissivity coating on the test masses would be required in order to cool them down to 123 K. The results presented here indicate that bulk silicon itself can have sufficient thermal emissivity in order to cool the 200 kg LIGO Voyager test masses only by radiation in a reasonable short amount of time (less than a week). However, it is still not clear if the natural emissivity of silicon will be sufficient to maintain the LIGO Voyager test masses at the desired temperature (123 K) while removing power absorbed by the test masses. With the present results, a black coating on the barrel surface of the test masses would be necessary if power in excess of 6 W is delivered. However, the agreement we found between the hemispherical emissivity obtained by a theory of semi-transparent Silicon and the obtained experimental results makes us believe that the LIGO Voyager test masses, because of their dimensions, will have effective emissivities around 0.7, which would be enough to remove about 8.6 W (7.5 W) for a shield at 60 K (80 K). This hypothesis may be confirmed in the near future with new measurements. | |||
| Area | CEA | |||
| Arrangement 1 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDAS > Silicon emissivity as... | |||
| Arrangement 2 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > YYY-PCI-CGCEA > Silicon emissivity as... | |||
| 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 | |||
| Target File | constancio_silicon.pdf | |||
| User Group | simone | |||
| Reader Group | administrator simone | |||
| Visibility | shown | |||
| Archiving Policy | denypublisher denyfinaldraft24 | |||
| Read Permission | deny from all and allow from 150.163 | |||
| Update Permission | not transferred | |||
| 5. Allied materials | ||||
| Next Higher Units | 8JMKD3MGPCW/3ETR8EH 8JMKD3MGPCW/4467GD8 | |||
| Citing Item List | sid.inpe.br/bibdigital/2021/02.11.01.58 3 sid.inpe.br/bibdigital/2013/10.01.00.07 3 sid.inpe.br/mtc-m21/2012/07.13.14.57.26 1 | |||
| Dissemination | WEBSCI; PORTALCAPES; COMPENDEX. | |||
| Host Collection | urlib.net/www/2017/11.22.19.04 | |||
| 6. Notes | ||||
| Empty Fields | alternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn label lineage mark mirrorrepository nextedition notes number orcid parameterlist parentrepositories previousedition previouslowerunit progress project rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject tertiarymark tertiarytype url | |||
| 7. Description control | ||||
| e-Mail (login) | simone | |||
| update | ||||