Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Arnold Milenko Müller"'
Autor:
Marcus Christl, Philip Gautschi, Sascha Maxeiner, Arnold Milenko Müller, Christof Vockenhuber, Hans-Arno Synal
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 534
Compact, low energy accelerator mass spectrometry (AMS) has evolved over the past years as one of the most sensitive, selective, and robust techniques for the analysis of heavy and long lived radionuclides. In this study, we focus on the analytical c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::231b63bfd48df8003a8405ade8b16af2
Autor:
Hans-Arno Synal, Martin Suter, Christof Vockenhuber, Arnold Milenko Müller, Marcus Christl, Sascha Maxeiner
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 439:84-89
A proof-of-principle experiment of a compact 300 kV multi-isotope AMS system is presented. An existing spectrometer (Tandy 500 kV AMS system) was combined with a novel 300 kV vacuum insulated tandem acceleration unit. Based on new models and simulati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7bb31a69edc76b90c18a749f61203b03
https://doi.org/10.1016/j.nimb.2018.11.028
https://doi.org/10.1016/j.nimb.2018.11.028
Autor:
Arnold Milenko Müller, Klaus-Ulrich Miltenberger, Hans-Arno Synal, Max Döbeli, Martina Schulte-Borchers, Matthias George
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 412:185-189
An MeV-SIMS microprobe has been constructed based on primary beam collimation by a conical glass capillary. Molecular surface mapping is obtained by raster scanning of the sample with a piezo-driven XY stage. The angular divergence of the collimated
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f73320a93c05e019e287669f9619ee5
https://doi.org/10.1016/j.nimb.2017.09.024
https://doi.org/10.1016/j.nimb.2017.09.024
Autor:
Klaus-Ulrich Miltenberger, Christof Vockenhuber, Arnold Milenko Müller, Hans-Arno Synal, Martin Suter
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 406:272-277
For accelerator mass spectrometry (AMS) measurements of 26Al the use of AlO− ions holds considerable promise given their ionization yield which is about an order of magnitude higher compared to the commonly used Al− ions. However, the strong isob
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b2d7e658ed2b5f09910e416c33f1c28a
https://doi.org/10.1016/j.nimb.2017.02.013
https://doi.org/10.1016/j.nimb.2017.02.013
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 407:40-46
The operation of the ETH gas ionization detector as a proportional chamber, where a secondary ionization avalanche is initiated between the Frisch grid and anode, was investigated for ions covering the mass range from H to 127I. By amplifying the det
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c0d7d1063693e9665af8af5d2a2807a1
https://doi.org/10.1016/j.nimb.2017.05.020
https://doi.org/10.1016/j.nimb.2017.05.020
Autor:
Arnold Milenko Müller, Max Döbeli, Martina Schulte-Borchers, Matthias George, Hans-Arno Synal
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 380:94-98
A new Time-of-flight MeV Secondary Ion Mass Spectrometry (MeV-SIMS) setup was developed to be used with a capillary microprobe for molecular imaging with heavy primary ions at MeV energies. Due to the low output current of the ion collimating capilla
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::54397fde5064f3bf92e2d8e6213c0d99
https://doi.org/10.1016/j.nimb.2016.05.011
https://doi.org/10.1016/j.nimb.2016.05.011
Autor:
Arnold Milenko Müller, Hans-Arno Synal, Claudia Christina Zanella, Marcus Christl, Johannes Lachner, Christof Vockenhuber
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 361:257-262
The use of helium as stripper gas improved the measurement efficiency of compact AMS systems for many radionuclides significantly because of a higher mean charge state and reduced scattering losses compared with other conventional gases. Recent tests
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d5e5eedd589d3f704e9cfbd3b0aca21
https://doi.org/10.1016/j.nimb.2015.04.049
https://doi.org/10.1016/j.nimb.2015.04.049
Autor:
Marcus Christl, Arnold Milenko Müller, Xingfang Ding, Hans-Arno Synal, Dongpo Fu, Kexin Liu, Martin Suter, Liping Zhou
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 361:178-182
The Peking University 500 kV NEC compact AMS radiocarbon facility (PKU-CAMS) has been modified in order to have additionally the possibility to measure 10 Be. In the preliminary experiment a silicon nitride foil was mounted in front of the electrosta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e1b8a80e293d0155c634e50bdb3b0fa
https://doi.org/10.1016/j.nimb.2015.01.059
https://doi.org/10.1016/j.nimb.2015.01.059
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. :81-87
A new compact Bragg type gas ionization chamber (GIC) has been built for use as particle counter in AMS and IBA applications. The detector stands out due to its simple concept, which does not include a Frisch grid. Test experiments have been performe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e975fde4de8f9e2b0c9f1e6f806884aa
https://doi.org/10.1016/j.nimb.2015.04.056
https://doi.org/10.1016/j.nimb.2015.04.056
Autor:
Max Döbeli, André Rubbia, Arnold Milenko Müller, Klaus Kirch, David R. Cooke, Tommaso Stefano Carzaniga, Saverio Braccini, C. Vermeulen, Paolo Crivelli, Lars Gerchow, Ulli Köster, Nicholas P. van der Meulen
Publikováno v:
Instruments
Instruments, 2018, 2 (3), pp.10. ⟨10.3390/instruments2030010⟩
Volume 2
Issue 3
Instruments, Vol 2, Iss 3, p 10 (2018)
Instruments, 2 (3)
'Instruments ', vol: 2, pages: 10-1-10-10 (2018)
Instruments, 2018, 2 (3), pp.10. ⟨10.3390/instruments2030010⟩
Volume 2
Issue 3
Instruments, Vol 2, Iss 3, p 10 (2018)
Instruments, 2 (3)
'Instruments ', vol: 2, pages: 10-1-10-10 (2018)
We report on the realisation of a cyclotron trap assisted positron tungsten moderator for the conversion of positrons with a broad keV&ndash
few MeV energy spectrum to a mono-energetic eV beam with an efficiency of 1.8(2)% defined as the ratio o
few MeV energy spectrum to a mono-energetic eV beam with an efficiency of 1.8(2)% defined as the ratio o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a038418eb888c59359c9e14d26f1877b
http://arxiv.org/abs/1703.06198
http://arxiv.org/abs/1703.06198