Search Results - "Mäckel, V"

The ASACUSA antihydrogen and hydrogen program: results and prospects by Malbrunot, C., Amsler, C., Arguedas Cuendis, S., Breuker, H., Dupre, P., Fleck, M., Higaki, H., Kanai, Y., Kolbinger, B., Kuroda, N., Leali, M., Mäckel, V., Mascagna, V., Massiczek, O., Matsuda, Y., Nagata, Y., Simon, M. C., Spitzer, H., Tajima, M., Ulmer, S., Venturelli, L., Widmann, E., Wiesinger, M., Yamazaki, Y., Zmeskal, J.

“…The goal of the ASACUSA-CUSP collaboration at the Antiproton Decelerator of CERN is to measure the ground-state hyperfine splitting of antihydrogen using an…”
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An unexpectedly low oscillator strength as the origin of the Fe xvii emission problem by Bernitt, S., Brown, G. V., Rudolph, J. K., Steinbrügge, R., Graf, A., Leutenegger, M., Epp, S. W., Eberle, S., Kubiček, K., Mäckel, V., Simon, M. C., Träbert, E., Magee, E. W., Beilmann, C., Hell, N., Schippers, S., Müller, A., Kahn, S. M., Surzhykov, A., Harman, Z., Keitel, C. H., Clementson, J., Porter, F. S., Schlotter, W., Turner, J. J., Ullrich, J., Beiersdorfer, P., López-Urrutia, J. R. Crespo

“…Fluorescence of iron ions induced by an X-ray laser allows the relative oscillator strength for Fe xvii emission to be determined; it is found to differ by 3.6…”
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Measurement of the principal quantum number distribution in a beam of antihydrogen atoms by Kolbinger, B., Amsler, C., Cuendis, S. Arguedas, Breuker, H., Capon, A., Costantini, G., Dupré, P., Fleck, M., Gligorova, A., Higaki, H., Kanai, Y., Kletzl, V., Kuroda, N., Lanz, A., Leali, M., Mäckel, V., Malbrunot, C., Mascagna, V., Massiczek, O., Matsuda, Y., Murtagh, D. J., Nagata, Y., Nanda, A., Nowak, L., Radics, B., Sauerzopf, C., Simon, M. C., Tajima, M., Torii, H. A., Uggerhøj, U., Ulmer, S., Venturelli, L., Weiser, A., Wiesinger, M., Widmann, E., Wolz, T., Yamazaki, Y., Zmeskal, J.

“…The ASACUSA (Atomic Spectroscopy And Collisions Using Slow Antiprotons) collaboration plans to measure the ground-state hyperfine splitting of antihydrogen in…”
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Monte-Carlo based performance assessment of ASACUSA’s antihydrogen detector by Nagata, Y., Kuroda, N., Kolbinger, B., Fleck, M., Malbrunot, C., Mäckel, V., Sauerzopf, C., Simon, M.C., Tajima, M., Zmeskal, J., Breuker, H., Higaki, H., Kanai, Y., Matsuda, Y., Ulmer, S., Venturelli, L., Widmann, E., Yamazaki, Y.

“…An antihydrogen detector consisting of a thin BGO disk and a surrounding plastic scintillator hodoscope has been developed. We have characterized the…”
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Soft x-ray laser spectroscopy on trapped highly charged ions at FLASH by Epp, S W, López-Urrutia, J R Crespo, Brenner, G, Mäckel, V, Mokler, P H, Treusch, R, Kuhlmann, M, Yurkov, M V, Feldhaus, J, Schneider, J R, Wellhöfer, M, Martins, M, Wurth, W, Ullrich, J

“…In a proof-of-principle experiment, we demonstrate high-resolution resonant laser excitation in the soft x-ray region at 48.6 eV of the 2 (2)S(1/2) to 2…”
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Imaging antimatter with a Micromegas detector by Mäckel, V., Radics, B., Dupre, P., Higaki, H., Kanai, Y., Kuroda, N., Matsuda, Y., Nagata, Y., Tajima, M., Widmann, E., Yamazaki, Y.

“…The ASACUSA collaboration aims at measuring the ground state hyperfine splitting of antihydrogen for probing fundamental symmetries. A cryogenic trap for…”
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Upgrade of ASACUSA’s antihydrogen detector by Kraxberger, V., Amsler, C., Breuker, H., Chesnevskaya, S., Costantini, G., Ferragut, R., Giammarchi, M., Gligorova, A., Gosta, G., Higaki, H., Hunter, E.D., Killian, C., Kletzl, V., Kuroda, N., Lanz, A., Leali, M., Mäckel, V., Maero, G., Malbrunot, C., Mascagna, V., Matsuda, Y., Migliorati, S., Murtagh, D.J., Nagata, Y., Nanda, A., Nowak, L., Pasino, E., Romé, M., Simon, M.C., Tajima, M., Toso, V., Ulmer, S., Venturelli, L., Weiser, A., Widmann, E., Wolz, T., Yamazaki, Y., Zmeskal, J.

“…The goal of the ASACUSA (Atomic Spectroscopy And Collisions Using Slow Antiprotons) CUSP experiment at CERN’s Antiproton Decelerator is to measure the ground…”
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CORONIUM IN THE LABORATORY: MEASURING THE Fe XIV GREEN CORONAL LINE BY LASER SPECTROSCOPY by Schnorr, K, Mackel, V, ORESHKINA, N S, Augustin, S, Brunner, F, Harman, Z, Keitel, C H, Ullrich, J, LOPEZ-URRUTIA, J R CRESPO

“…The green coronal line at 530.3 nm was first observed during the total solar eclipse of 1869. Once identified as emitted by Fe XIV, it became clear that this…”
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Hyperfine spectroscopy of hydrogen and antihydrogen in ASACUSA by Widmann, E., Amsler, C., Arguedas Cuendis, S., Breuker, H., Diermaier, M., Dupré, P., Evans, C., Fleck, M., Gligorova, A., Higaki, H., Kanai, Y., Kolbinger, B., Kuroda, N., Leali, M., Leite, A. M. M., Mäckel, V., Malbrunot, C., Mascagna, V., Massiczek, O., Matsuda, Y., Murtagh, D. J., Nagata, Y., Nanda, A., Phan, D., Sauerzopf, C., Simon, M. C., Tajima, M., Spitzer, H., Strube, M., Ulmer, S., Venturelli, L., Wiesinger, M., Yamazaki, Y., Zmeskal, J.

“…The ASACUSA collaboration at the Antiproton Decelerator of CERN aims at a precise measurement of the antihydrogen ground-state hyperfine structure as a test of…”
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A novel facility for 3D micro-irradiation of living cells in a controlled environment by MeV ions by Mäckel, V, Meissl, W, Ikeda, T, Clever, M, Meissl, E, Kobayashi, T, Kojima, T M, Imamoto, N, Ogiwara, K, Yamazaki, Y

“…We present a novel facility for micro-irradiation of living targets with ions from a 1.7 MV tandem accelerator. We show results using 1 MeV protons and 2 MeV…”
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Single proton counting at the RIKEN cell irradiation facility by Mäckel, V, Puttaraksa, N, Kobayashi, T, Yamazaki, Y

“…We present newly developed tapered capillaries with a scintillator window, which enable us to count single protons at the RIKEN cell irradiation setup. Their…”
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Recent Developments from ASACUSA on Antihydrogen Detection by Kolbinger, B., Amsler, C., Breuker, H., Diermaier, M., Dupré, P., Fleck, M., Gligorova, A., Higaki, H., Kanai, Y., Kobayashi, T., Leali, M., Mäckel, V., Malbrunot, C., Mascagna, V., Massiczek, O., Matsuda, Y., Murtagh, D.j., Nagata, Y., Sauerzopf, C., Simon, M.C., Tajima, M., Ulmer, S., Kuroda, N., Venturelli, L., Widmann, E., Yamazaki, Y., Zmeskal, J.

“…The ASACUSA Collaboration at CERNs Antiproton Decelerator aims to measure the ground state hyperfine splitting of antihydrogen with high precision to test the…”
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Resonant and near-threshold photoionization cross sections of Fe14 by Simon, M C, López-Urrutia, J R Crespo, Beilmann, C, Schwarz, M, Harman, Z, Epp, S W, Schmitt, B L, Baumann, T M, Behar, E, Bernitt, S, Follath, R, Ginzel, R, Keitel, C H, Klawitter, R, Kubiček, K, Mäckel, V, Mokler, P H, Reichardt, G, Schwarzkopf, O, Ullrich, J

“…Photoionization (PI) of Fe14+ in the range from 450 to 1100 eV was measured at the BESSY II storage ring using an electron beam ion trap achieving high…”
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Experimental Investigations of Ion Charge Distributions, Effective Electron Densities, and Electron-Ion Cloud Overlap in Electron Beam Ion Trap Plasma Using Extreme-Ultraviolet Spectroscopy by Liang, G. Y, Crespo López-Urrutia, J. R, Baumann, T. M, Epp, S. W, Gonchar, A, Lapierre, A, Mokler, P. H, Simon, M. C, Tawara, H, Mäckel, V, Yao, K, Zhao, G, Zou, Y, Ullrich, J

“…Spectra in the extreme ultraviolet range from 107 to 353 A emitted from Fe ions in various ionization stages have been observed at the Heidelberg electron beam…”
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Minimizing plasma temperature for antimatter mixing experiments by Hunter, E.D., Amsler, C., Breuker, H., Chesnevskaya, S., Costantini, G., Ferragut, R., Giammarchi, M., Gligorova, A., Gosta, G., Higaki, H., Kanai, Y., Killian, C., Kletzl, V., Kraxberger, V., Kuroda, N., Lanz, A., Leali, M., Mäckel, V., Maero, G., Malbrunot, C., Mascagna, V., Matsuda, Y., Migliorati, S., Murtagh, D.J., Nagata, Y., Nanda, A., Nowak, L., Pasino, E., Romé, M., Simon, M.C., Tajima, M., Toso, V., Ulmer, S., Uggerhøj, U., Venturelli, L., Weiser, A., Widmann, E., Wolz, T., Yamazaki, Y., Zmeskal, J.

“…The ASACUSA collaboration produces a beam of antihydrogen atoms by mixing pure positron and antiproton plasmas in a strong magnetic field with a double cusp…”
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Laser spectroscopy of highly charged argon at the Heidelberg electron beam ion trap by Mäckel, V, Klawitter, R, Brenner, G, Crespo López-Urrutia, J R, Ullrich, J

“…We report on two-level laser spectroscopy on the electron dipole-forbidden 1s22s22p 2P3 2-2P1 2 transition in boron-like Ar13+ ions stored in an electron beam…”
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Studies of highly charged iron ions using electron beam ion traps for interpreting astrophysical spectra by Brown, G V, Beilmann, C, Bernitt, S, Clementson, J, Eberle, S, Epp, S W, Graf, A, Hell, N, Kelley, R L, Kilbourne, C A, Kubi ek, K, Leutenegger, M A, Mäckel, V, Porter, F S, Rudolph, J K, Simon, M C, Steinbrügge, R, Träbert, E, Ullrich, J, Crespo López-Urrutia, J R, Beiersdorfer, P

“…For over a decade, the x-ray astrophysics community has enjoyed a fruitful epoch of discovery largely as a result of the successful launch and operation of the…”
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On the Transition Rate of the Fe X Red Coronal Line by Brenner, G, Crespo López-Urrutia, J. R, Bernitt, S, Fischer, D, Ginzel, R, Kubiček, K, Mäckel, V, Mokler, P. H, Simon, M. C, Ullrich, J

“…We present a lifetime measurement of the 3s 23p 5 2 Po 1/2 first excited fine-structure level of the ground state configuration in chlorine-like Fe X, which…”
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Transition energy measurements in hydrogenlike and heliumlike ions strongly supporting bound-state QED calculations by Kubiček, K., Mokler, P. H., Mäckel, V., Ullrich, J., López-Urrutia, J. R. Crespo

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An unexpectedly low oscillator strength as the origin of the Fexvii emission problem by Bernitt, S, Brown, G V, Rudolph, J K, Steinbruegge, R, Graf, A, Leutenegger, M, Epp, S W, Eberle, S, Kubicek, K, Maeckel, V, Simon, M C, Traebert, E, Magee, E W, Beilmann, C, Hell, N, Schippers, S, Mueller, A, Kahn, S M, Surzhykov, A, Harman, Z, Keitel, CH, Clementson, J, Porter, F S, Schlotter, W, Turner, J J, Ullrich, J, Beiersdorfer, P, Lopez-Urrutia, JRCrespo

“…Highly charged iron (Fe super(16+), here referred to as Fexvii) produces some of the brightest X-ray emission lines from hot astrophysical objects, including…”
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