Manufacture, observation, and test of membranes with locatable single pores

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorPackard, R. E.
dc.contributor.authorPekola, Jukka P.
dc.contributor.authorPrice, P. B.
dc.contributor.authorSpohr, R. N. R.
dc.contributor.authorWestmacott, K. H.
dc.contributor.authorYu-Qun, Zhu
dc.contributor.departmentDepartment of Applied Physicsen
dc.contributor.departmentTeknillisen fysiikan laitosfi
dc.contributor.schoolPerustieteiden korkeakoulufi
dc.contributor.schoolSchool of Scienceen
dc.date.accessioned2015-05-29T09:01:08Z
dc.date.available2015-05-29T09:01:08Z
dc.date.issued1986
dc.description.abstractA method for generating single pores down to 0.1 μm diameter in the center of a large circular foil is described, based on nuclear tracks. The foil is framed by a tension ring which enables one to handle the foils in a well‐defined precise way. The single pore has a lateral displacement of ±0.1 mm with respect to the tension ring center. The foils used are polycarbonate of the type Makrofol and have thicknesses between 2 and 10 μm. For calibration of the single pore diameters, multiple nuclear tracks between 0.1 and 3.5 μm diameter are etched and observed by microscopy. The microscopic observations are compared with gas‐flow measurements, using two alternative methods: multiple holes are tested under viscous flow conditions of N2 gas at normal temperature and pressure; single holes are tested under collisionless flow conditions of 4He gas at liquid‐nitrogen temperature, using a capacitance method.en
dc.description.versionPeer revieweden
dc.format.extent1654-1660
dc.format.mimetypeapplication/pdfen
dc.identifier.citationPackard, R. E. & Pekola, Jukka & Price, P. B. & Spohr, R. N. R. & Westmacott, K. H. & Yu-Qun, Zhu. 1986. Manufacture, observation, and test of membranes with locatable single pores. Review of Scientific Instruments. Volume 57, Issue 8. 1654-1660. ISSN 0034-6748 (printed). DOI: 10.1063/1.1138545.en
dc.identifier.doi10.1063/1.1138545
dc.identifier.issn0034-6748 (printed)
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/16395
dc.identifier.urnURN:NBN:fi:aalto-201505293043
dc.language.isoenen
dc.publisherAIP Publishingen
dc.relation.ispartofseriesReview of Scientific Instrumentsen
dc.relation.ispartofseriesVolume 57, Issue 8
dc.rights© 1986 AIP Publishing. This is the accepted version of the following article: Packard, R. E. & Pekola, Jukka & Price, P. B. & Spohr, R. N. R. & Westmacott, K. H. & Yu-Qun, Zhu. 1986. Manufacture, observation, and test of membranes with locatable single pores. Review of Scientific Instruments. Volume 57, Issue 8. 1654-1660. ISSN 0034-6748 (printed). DOI: 10.1063/1.1138545, which has been published in final form at http://scitation.aip.org/content/aip/journal/rsi/57/8/10.1063/1.1138545en
dc.rights.holderAIP Publishing
dc.subject.keywordgas liquid flowsen
dc.subject.keywordcalibrationen
dc.subject.keywordcapacitanceen
dc.subject.keywordetchingen
dc.subject.keywordhelium-4en
dc.subject.otherPhysicsen
dc.titleManufacture, observation, and test of membranes with locatable single poresen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.dcmitypetexten
dc.type.versionFinal published versionen
Files
Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
A1_packard_r_e_1986.pdf
Size:
1.1 MB
Format:
Adobe Portable Document Format