- Radiation damage due to knock-on processes on carbon foils cooled to liquid helium temperature.
Radiation damage due to knock-on processes on carbon foils cooled to liquid helium temperature.
Ultramicroscopy (1978-01-01)
I Dietrich, F Fox, H G Heide, E Knapek, R Weyl
PMID695132
要旨
Radiation damage on a holey carbon foil was investigated in an electron microscope with a superconducting lens system, where the temperature of the specimen and its environment initially was 4 K. Due to an electron dose of 2 X 10(4) As/cm2 the diameter of a hole increased 5 nm. Rough calculations show that this increase can be ascribed to knock-on processes. Estimates of the rise in specimen temperature during the irradiation are given.
材料
製品番号
ブランド
製品内容
炭素, foil, 10x10mm, thickness 2.0mm, hOpg
炭素, foil, 5x5mm, thickness 2.0mm, hOpg
炭素, foil, 100x100mm, thickness 0.5mm, flexible graphite, 99.8%
炭素, foil, 50x50mm, thickness 0.2mm, flexible graphite, 99.8%
炭素, foil, 25x25mm, thickness 0.5mm, pyrolytic graphite, 99.99%
炭素, foil, not light tested, 100x100mm, thickness 0.075mm, flexible graphite, 99.8%
炭素, foil, 25x25mm, thickness 0.1mm, pyrolytic graphite, 99.99%
炭素, foil, 15x15mm, thickness 2.0mm, hOpg
炭素, foil, 50x50mm, thickness 1.0mm, flexible graphite, 99.8%
炭素, foil, 100x100mm, thickness 0.2mm, flexible graphite, 99.8%
炭素, foil, 25x25mm, thickness 0.25mm, rigid graphite, fine grain size, 99.997%
炭素, foil, 12mm disks, thickness 0.5mm, rigid graphite, fine grain size, 99.95%
炭素, foil, 100x100mm, thickness 0.125mm, rigid graphite, fine grain size, 99.95%
炭素, foil, 25x25mm, thickness 0.2mm, flexible graphite, 99.8%
炭素, foil, 50x50mm, thickness 0.1mm, pyrolytic graphite, 99.99%
炭素, foil, 150x150mm, thickness 1.0mm, rigid graphite, fine grain size, 99.95%
炭素, foil, 25x25mm, thickness 0.25mm, rigid graphite, fine grain size, 99.95%
炭素, foil, 50x50mm, thickness 0.35mm, flexible graphite, 99.8%
炭素, foil, 50x50mm, thickness 0.5mm, flexible graphite, 99.8%
炭素, foil, not light tested, 300x300mm, thickness 0.075mm, flexible graphite, 99.8%
炭素, foil, 300x300mm, thickness 0.2mm, flexible graphite, 99.8%
炭素, foil, 50x50mm, thickness 0.2mm, pyrolytic graphite, 99.99%
炭素, foil, not light tested, 150x150mm, thickness 0.075mm, flexible graphite, 99.8%
炭素, foil, 10mm disks, thickness 0.2mm, flexible graphite, 99.8%
炭素, foil, 150x150mm, thickness 1.0mm, flexible graphite, 99.8%
炭素, foil, 25x25mm, thickness 0.5mm, rigid graphite, fine grain size, 99.95%
炭素, foil, 25mm disks, thickness 0.2mm, flexible graphite, 99.8%
炭素, foil, 100x100mm, thickness 0.35mm, flexible graphite, 99.8%
炭素, foil, 250x250mm, thickness 0.5mm, flexible graphite, 99.8%
炭素, foil, 50x50mm, thickness 5.0mm, rigid graphite, medium grain size, 99.5%