Zobrazeno 1 - 10
of 94
pro vyhledávání: '"Reimar Spohr"'
Autor:
Lars Westerberg, Bernd Eberhard Fischer, Cristian Zet, Helge Kiesewetter, Pavel Yu Apel, Takeshi Ohgai, Igor Gunko, Reimar Spohr
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 268(6):676-686
We describe a system for fabricating prescribed numbers of ion track nanochannels and nanowires from a few hundred down to one. It consists of two parts: first, a mobile tape transport system, which, in connection with an ion beam from a heavy-ion ac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::031e93bcf21d0c85f5a80dc9ddb67b36
http://hdl.handle.net/10069/32233
http://hdl.handle.net/10069/32233
Autor:
Anders Hallén, Reimar Spohr, Pontus Forsberg, Lars Westerberg, Gunjana Sharma, Mikael Karlsson
Publikováno v:
Langmuir. 26:6790-6796
The stroke asymmetry of contact angles of water drops on tilted hydrophobic textures is demonstrated, obtained by ion track etching followed by a hydrophobic treatment. Preliminary trends concerning the advancing and receding contact angles are estab
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9587fe0b4fc0b9ac5894c3ae76767b3b
https://doi.org/10.1021/la904137t
https://doi.org/10.1021/la904137t
Autor:
I.V. Blonskaya, Thomas W. Cornelius, K. Schwartz, Vladimir A. Skuratov, Christina Trautmann, R. Neumann, P. Yu. Apel, Reimar Spohr
Publikováno v:
Radiation Measurements. 44:759-762
Stacks consisting of several layers of polycarbonate foils 10 μm thick were irradiated with U, Sm and Ni ions at the UNILAC (GSI, Darmstadt) and with Kr ions from the U-400 cyclotron (JINR, Dubna). The energy of the ions varied from 1 to 11 MeV/u. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::88a727bb5d03a90153c4c6023d53cf71
https://doi.org/10.1016/j.radmeas.2009.09.008
https://doi.org/10.1016/j.radmeas.2009.09.008
Autor:
Reimar Spohr
Publikováno v:
Radiation Measurements. 43:S560-S570
Part (1) of the report sketches a computer controlled electrolytic cell system for track etching and electro replication. Track and bulk etch rates are determined in real-time. Processing can be stopped at a prescribed parameter, e.g. current, diamet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::71552a5c1c5029e5ecbeea161d5f4943
https://doi.org/10.1016/j.radmeas.2008.03.078
https://doi.org/10.1016/j.radmeas.2008.03.078
Publikováno v:
Journal of Applied Electrochemistry. 38:713-719
Polycarbonate films of thickness 30 μm were irradiated with heavy ions by applying a flux of 108 ions cm-2 to produce straight tracks perpendicular to the film surface. The tracks were preferentially etched in 6 M aqueous solution of sodium hydroxid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68a9210317f849f6307299c3d14fe180
https://doi.org/10.1007/s10800-008-9499-1
https://doi.org/10.1007/s10800-008-9499-1
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 265:621-625
The influence of the alkali resistant surfactant Dowfax 2A1 on single ion track etching in 30 μm polycarbonate foils is studied at low etch rate (5 M NaOH at 41.5 ± 2 °C) using electro conductivity measurements. At surfactant concentrations above
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f9e112ec5cf76dcd85ba6e118b57f84a
https://doi.org/10.1016/j.nimb.2007.09.029
https://doi.org/10.1016/j.nimb.2007.09.029
Autor:
M. Daub, Ionut Enculescu, R. Neumann, Maria Eugenia Toimil-Molares, Cristian Zet, Reimar Spohr, Lars Westerberg
Publikováno v:
Applied Physics A. 86:43-47
By electrochemical deposition in a single nanopore membrane we fabricate Cu/Co layered single nanowires, that exhibit up to 10% magnetoresistance at room temperature. Single nanopore membranes are prepared by irradiating polycarbonate membranes with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ab5b000f492bb8f8142679612068dac
https://doi.org/10.1007/s00339-006-3738-2
https://doi.org/10.1007/s00339-006-3738-2
Autor:
Klas Hjort, R. Neumann, Cristian Zet, Lars Westerberg, Ionut Enculescu, Takeshi Ohgai, Reimar Spohr
Publikováno v:
Journal of Applied Electrochemistry. 36(10):1157-1162
Polycarbonate templates of (30±1) μm thickness containing cylindrical etched-track nanochannels of (500±50) nm diameter were used for electrodeposition of Ni nanowires. Using 104 channels per cm2, the most favourable deposition potential of − 1.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::23580012c7e8ecff85eebe9209e46902
http://hdl.handle.net/10069/32216
http://hdl.handle.net/10069/32216
Autor:
R. Neumann, Reimar Spohr, K. Schwartz, A. P. Akimenko, I.V. Blonskaya, Thomas W. Cornelius, P. Yu. Apel, Christina Trautmann
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 245:284-287
Temperature effects on the formation of ion tracks in polycarbonate at different energy losses have been investigated. Samples of polycarbonate foils Makrofol were irradiated at 298 K and 15 K with Ni and U ions of initial energy 11.1 MeV/u. The cond
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56d72449d9aeed8c9b7627faa61730e9
https://doi.org/10.1016/j.nimb.2005.11.164
https://doi.org/10.1016/j.nimb.2005.11.164
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 546:312-318
Ultra-thin Δ E detectors for spectroscopic applications have been fabricated and characterized down to a thickness of 4.5 μm. A common one-side mask aligner was used to fabricate the detectors. The detectors display low leakage current and the resu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::94d12bff64b15acc4d43e25e66ef7b31
https://doi.org/10.1016/j.nima.2005.03.053
https://doi.org/10.1016/j.nima.2005.03.053