Showing items with similar title or keywords.

• Fabrication and characterisation of a miniature Helium-4 evaporation pot made from single crystal silicon 

  Agar, David (2002)

• Minimum detection limits and applications of proton and helium induced X-ray emission using transition-edge sensor array 

  Käyhkö, Marko; Palosaari, M. R. J.; Laitinen, Mikko; Arstila, Kai; Maasilta, Ilari; Fowler, J. W.; Doriese, W. B.; Ullom, J. N.; Sajavaara, Timo (Elsevier B.V., 2017)

  We have determined minimum detection limits, MDLs, for elements 14 ≤ Z ≤ 86 using a transition-edge sensor array, TES array, and as a comparison using an Amptek X-123SDD silicon drift detector, SDD. This was done using ...

• Imaging Bacterial Colonies and Phage-Bacterium Interaction at Sub-Nanometer Resolution Using Helium-Ion Microscopy 

  Leppänen, Miika; Sundberg, Lotta-Riina; Laanto, Elina; De Freitas Almeida, Gabriel; Papponen, Petri; Maasilta, Ilari (Wiley, 2017)

  Imaging of microbial interactions has so far been based on well‐established electron microscopy methods. This study presents a new way to study bacterial colonies and interactions between bacteria and their viruses, ...

• Observation of a superfluid component within solid helium 

  Lauter, Hans; Apaja, Vesa; Kalinin, I.; Kats, E.; Koza, M.; Krotscheck, E.; Lauter, V.V.; Puchkov, A.V. (American Physical Society, 2011)

  We demonstrate by neutron scattering that a localized superfluid component exists at high pressures within solid helium in aerogel. Its existence is deduced from the observation of two sharp phonon-roton spectra which ...

• A study of the helium-jet recoil-transport method and its application to on-line isotope separation 

  Äystö, Juha (1977)

  The helium-jet recoil-transport method and its coupling to the isotope separator on-line have been investigated. The dependence of the transport efficiency on several equipment parameters was studied both experimentally ...