A construction diffusion cloud chamber for science museums and didactic laboratories

Detalhes bibliográficos
Autor(a) principal: Silva, Osmar Henrique Moura
Data de Publicação: 2019
Outros Autores: Laburú, Carlos Eduardo
Tipo de documento: Artigo
Idioma: por
Título da fonte: Caderno Brasileiro de Ensino de Física (Online)
Texto Completo: https://periodicos.ufsc.br/index.php/fisica/article/view/2175-7941.2019v36n2p514
Resumo: Cloud chambers are interesting experiments where traces produced by subatomic particles are evidenced. In the diffusion version for educational and demonstrative purposes, the necessary cooling of the chamber has been popularly established with the practice of dry ice, liquid nitrogen or thermoelectric devices (Peltier pellets). This work suggests a differentiated proposal of construction that has relatively low cost and advantageous refrigeration system by cycle of compression that show advantage in the following aspects: wide area of observation of traces; automation of maintenance-free cooling; duration of demonstrations for hours. Such a camera is convenient for exposure in non-formal education environments, such as science museums and similar spaces, looking for to contribute by taking into account the high costs of cloud chambers in the marketed with these similar characteristics. The proposal can also be used in didactic laboratories of universities and other interested parties.
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spelling A construction diffusion cloud chamber for science museums and didactic laboratoriesUma montagem de câmara de nuvens por difusão para museus de ciências e laboratórios didáticosCloud chambers are interesting experiments where traces produced by subatomic particles are evidenced. In the diffusion version for educational and demonstrative purposes, the necessary cooling of the chamber has been popularly established with the practice of dry ice, liquid nitrogen or thermoelectric devices (Peltier pellets). This work suggests a differentiated proposal of construction that has relatively low cost and advantageous refrigeration system by cycle of compression that show advantage in the following aspects: wide area of observation of traces; automation of maintenance-free cooling; duration of demonstrations for hours. Such a camera is convenient for exposure in non-formal education environments, such as science museums and similar spaces, looking for to contribute by taking into account the high costs of cloud chambers in the marketed with these similar characteristics. The proposal can also be used in didactic laboratories of universities and other interested parties.Câmaras de nuvens são interessantes experimentos onde se evidenciam traços produzidos por partículas subatômicas. Na versão de difusão para fins educacionais e demonstrativos, a necessária refrigeração da parte inferior da câmara tem sido popularmente estabelecida com o uso de gelo seco, nitrogênio líquido ou dispositivos termoelétricos (pastilhas Peltier). Este trabalho sugere uma proposta diferenciada de montagem, de custo relativamente baixo, cujo sistema de refrigeração por ciclo de compressão se mostra vantajoso nos seguintes aspectos: ampla área de observação de traços; automatização da refrigeração sem manutenção; duração das demonstrações por horas. Tal proposta de câmara é conveniente para exposição em ambientes de educação não formal, como museus de ciências e similares, procurando, nesse sentido, contribuir ao levar em conta os altos valores de câmaras de nuvens comercializadas com essas características. A proposta pode ser também aproveitada em laboratórios didáticos de universidades e demais interessados.Imprensa Universitária - UFSC2019-08-28info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufsc.br/index.php/fisica/article/view/2175-7941.2019v36n2p51410.5007/2175-7941.2019v36n2p514Caderno Brasileiro de Ensino de Física; v. 36 n. 2 (2019); 514-5282175-79411677-2334reponame:Caderno Brasileiro de Ensino de Física (Online)instname:Universidade Federal de Santa Catarina (UFSC)instacron:UFSCporhttps://periodicos.ufsc.br/index.php/fisica/article/view/2175-7941.2019v36n2p514/40739Copyright (c) 2019 Caderno Brasileiro de Ensino de Físicainfo:eu-repo/semantics/openAccessSilva, Osmar Henrique MouraLaburú, Carlos Eduardo2019-09-01T23:39:23Zoai:periodicos.ufsc.br:article/60753Revistahttp://www.periodicos.ufsc.br/index.php/fisicaPUBhttps://periodicos.ufsc.br/index.php/fisica/oaicbefisica@gmail.com||fscccef@fsc.ufsc.br|| cbefisica@gmail.com2175-79411677-2334opendoar:2019-09-01T23:39:23Caderno Brasileiro de Ensino de Física (Online) - Universidade Federal de Santa Catarina (UFSC)false
dc.title.none.fl_str_mv A construction diffusion cloud chamber for science museums and didactic laboratories
Uma montagem de câmara de nuvens por difusão para museus de ciências e laboratórios didáticos
title A construction diffusion cloud chamber for science museums and didactic laboratories
spellingShingle A construction diffusion cloud chamber for science museums and didactic laboratories
Silva, Osmar Henrique Moura
title_short A construction diffusion cloud chamber for science museums and didactic laboratories
title_full A construction diffusion cloud chamber for science museums and didactic laboratories
title_fullStr A construction diffusion cloud chamber for science museums and didactic laboratories
title_full_unstemmed A construction diffusion cloud chamber for science museums and didactic laboratories
title_sort A construction diffusion cloud chamber for science museums and didactic laboratories
author Silva, Osmar Henrique Moura
author_facet Silva, Osmar Henrique Moura
Laburú, Carlos Eduardo
author_role author
author2 Laburú, Carlos Eduardo
author2_role author
dc.contributor.author.fl_str_mv Silva, Osmar Henrique Moura
Laburú, Carlos Eduardo
description Cloud chambers are interesting experiments where traces produced by subatomic particles are evidenced. In the diffusion version for educational and demonstrative purposes, the necessary cooling of the chamber has been popularly established with the practice of dry ice, liquid nitrogen or thermoelectric devices (Peltier pellets). This work suggests a differentiated proposal of construction that has relatively low cost and advantageous refrigeration system by cycle of compression that show advantage in the following aspects: wide area of observation of traces; automation of maintenance-free cooling; duration of demonstrations for hours. Such a camera is convenient for exposure in non-formal education environments, such as science museums and similar spaces, looking for to contribute by taking into account the high costs of cloud chambers in the marketed with these similar characteristics. The proposal can also be used in didactic laboratories of universities and other interested parties.
publishDate 2019
dc.date.none.fl_str_mv 2019-08-28
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://periodicos.ufsc.br/index.php/fisica/article/view/2175-7941.2019v36n2p514
10.5007/2175-7941.2019v36n2p514
url https://periodicos.ufsc.br/index.php/fisica/article/view/2175-7941.2019v36n2p514
identifier_str_mv 10.5007/2175-7941.2019v36n2p514
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://periodicos.ufsc.br/index.php/fisica/article/view/2175-7941.2019v36n2p514/40739
dc.rights.driver.fl_str_mv Copyright (c) 2019 Caderno Brasileiro de Ensino de Física
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2019 Caderno Brasileiro de Ensino de Física
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Imprensa Universitária - UFSC
publisher.none.fl_str_mv Imprensa Universitária - UFSC
dc.source.none.fl_str_mv Caderno Brasileiro de Ensino de Física; v. 36 n. 2 (2019); 514-528
2175-7941
1677-2334
reponame:Caderno Brasileiro de Ensino de Física (Online)
instname:Universidade Federal de Santa Catarina (UFSC)
instacron:UFSC
instname_str Universidade Federal de Santa Catarina (UFSC)
instacron_str UFSC
institution UFSC
reponame_str Caderno Brasileiro de Ensino de Física (Online)
collection Caderno Brasileiro de Ensino de Física (Online)
repository.name.fl_str_mv Caderno Brasileiro de Ensino de Física (Online) - Universidade Federal de Santa Catarina (UFSC)
repository.mail.fl_str_mv cbefisica@gmail.com||fscccef@fsc.ufsc.br|| cbefisica@gmail.com
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