Search Results - "Beyer, H F"

Quantum electrodynamics in strong electric fields : The ground-state lamb shift in hydrogenlike uranium by GUMBERIDZE, A, STÖHLKER, Th, NOLDEN, F, MA, X, MOKLER, P. H, STECK, M, SIERPOWSKI, D, TASHENOV, S, BANAS, D, BECKERT, K, BELLER, P, BEYER, H. F, BOSCH, F, HAGMANN, S, KOZHUHAROV, C, LIESEN, D

“…X-ray spectra following radiative recombination of free electrons with bare uranium ions (U92+) were measured at the electron cooler of the ESR storage ring…”
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First measurement of the linear polarization of radiative electron capture transitions by Tashenov, S, Stöhlker, Th, Banaś, D, Beckert, K, Beller, P, Beyer, H F, Bosch, F, Fritzsche, S, Gumberidze, A, Hagmann, S, Kozhuharov, C, Krings, T, Liesen, D, Nolden, F, Protic, D, Sierpowski, D, Spillmann, U, Steck, M, Surzhykov, A

“…For radiative electron capture into the K shell of bare uranium ions, a study of the polarization properties has been performed. For this purpose a position…”
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Author Correction: Testing quantum electrodynamics in extreme fields using helium-like uranium by Loetzsch, R., Beyer, H. F., Duval, L., Spillmann, U., Banaś, D., Dergham, P., Kröger, F. M., Glorius, J., Grisenti, R. E., Guerra, M., Gumberidze, A., Heß, R., Hillenbrand, P.-M., Indelicato, P., Jagodzinski, P., Lamour, E., Lorentz, B., Litvinov, S., Litvinov, Yu. A., Machado, J., Paul, N., Paulus, G. G., Petridis, N., Santos, J. P., Scheidel, M., Sidhu, R. S., Steck, M., Steydli, S., Szary, K., Trotsenko, S., Uschmann, I., Weber, G., Stöhlker, Th, Trassinelli, M.

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Spatial characterization of the internal gas target at the ESR for the FOCAL experiment by T Gassner, Beyer, H F

“…The FOCAL experiment involves a highly accurate twin crystal spectrometer, designed for the measurement of the ground state Lamb shift of stored highly charged…”
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Testing quantum electrodynamics in extreme fields using helium-like uranium by Loetzsch, R., Beyer, H. F., Duval, L., Spillmann, U., Banaś, D., Dergham, P., Kröger, F. M., Glorius, J., Grisenti, R. E., Guerra, M., Gumberidze, A., Heß, R., Hillenbrand, P.-M., Indelicato, P., Jagodzinski, P., Lamour, E., Lorentz, B., Litvinov, S., Litvinov, Yu. A., Machado, J., Paul, N., Paulus, G. G., Petridis, N., Santos, J. P., Scheidel, M., Sidhu, R. S., Steck, M., Steydli, S., Szary, K., Trotsenko, S., Uschmann, I., Weber, G., Stöhlker, Th, Trassinelli, M.

“…Quantum electrodynamics (QED), the quantum field theory that describes the interaction between light and matter, is commonly regarded as the best-tested…”
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Electron-electron interaction in strong electromagnetic fields: the two-electron contribution to the ground-state energy in He-like uranium by Gumberidze, A, Stöhlker, Th, Banaś, D, Beckert, K, Beller, P, Beyer, H F, Bosch, F, Cai, X, Hagmann, S, Kozhuharov, C, Liesen, D, Nolden, F, Ma, X, Mokler, P H, Orsić-Muthig, A, Steck, M, Sierpowski, D, Tashenov, S, Warczak, A, Zou, Y

“…Radiative recombination transitions into the ground state of cooled bare and hydrogenlike uranium ions were measured at the storage ring ESR. By comparing the…”
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Electron- and proton-impact excitation of heliumlike uranium in relativistic collisions by Gumberidze, A., Thorn, D. B, Surzhykov, A., Fontes, C., Najjari, B., Voitkiv, A., Fritzsche, S., Banaś, D., Beyer, H. F, Chen, W., Grisenti, R., Hagmann, S., Hess, R., Hillenbrand, P.-M., Indelicato, P., Kozhuharov, C., Lestinsky, M., Märtin, R., Petridis, N., Popov, R., Schuch, R., Spillmann, U., Tashenov, S., Trotsenko, S., Warczak, A., Weber, G., Wen, W., Winters, A., Winters, N., Yin, Z., Stöhlker, Th

“…We have studied the K-shell excitation of He-like uranium (U90+) in relativistic collisions with hydrogen and argon atoms. Performing measurements with…”
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Wavelength-dispersive spectroscopy in the hard x-ray regime of a heavy highly-charged ion: the 1s Lamb shift in hydrogen-like gold by Gassner, T, Trassinelli, M, Heß, R, Spillmann, U, Bana, D, Blumenhagen, K-H, Bosch, F, Brandau, C, Chen, W, Dimopoulou, Chr, Förster, E, Grisenti, R E, Gumberidze, A, Hagmann, S, Hillenbrand, P-M, Indelicato, P, Jagodzinski, P, Kämpfer, T, Kozhuharov, Chr, Lestinsky, M, Liesen, D, Litvinov, Yu A, Loetzsch, R, Manil, B, Märtin, R, Nolden, F, Petridis, N, Sanjari, M S, Schulze, K S, Schwemlein, M, Simionovici, A, Steck, M, Stöhlker, Th, Szabo, C I, Trotsenko, S, Uschmann, I, Weber, G, Wehrhan, O, Winckler, N, Winters, D F A, Winters, N, Ziegler, E, Beyer, H F

“…Accurate spectroscopy of highly-charged high-Z ions in a storage ring is demonstrated to be feasible by the use of specially adapted crystal optics. The method…”
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Spectral shape of the 2E1 decay from 2s state in He-like tin by Kumar, A., Trotsenko, S., Volotka, A. V., Banaś, D., Beyer, H. F., Bräuning, H., Gumberidze, A., Hagmann, S., Hess, S., Kozhuharov, C., Reuschl, R., Spillmann, U., Trassinelli, M., Weber, G., Stöhlker, Th

“…The two-photon 2E1 transition from the singlet 2s state of heliumlike tin was measured. An alternative experimental approach was adopted in the present…”
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Ray-tracing simulations of spherical Johann diffraction spectrometer for in-beam X-ray experiments by Jagodziński, P., Pajek, M., Banaś, D., Beyer, H.F., Trassinelli, M., Sto¨hlker, Th

“…The results of the Monte-Carlo ray-tracing simulations for a Johann-type Bragg spectrometer with spherically curved-crystal designed to detect the X-rays from…”
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Near-threshold photoionization of hydrogenlike uranium studied in ion-atom collisions via the time-reversed process by Stöhlker, T, Ma, X, Ludziejewski, T, Beyer, H F, Bosch, F, Brinzanescu, O, Dunford, R W, Eichler, J, Hagmann, S, Ichihara, A, Kozhuharov, C, Krämer, A, Liesen, D, Mokler, P H, Stachura, Z, Swiat, P, Warczak, A

“…Radiative electron capture, the time-reversed photoionization process occurring in ion-atom collisions, provides presently the only access to photoionization…”
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FOCAL: X-ray optics for accurate spectroscopy by Beyer, H.F., Stöhlker, Th, Banas, D., Liesen, D., Protić, D., Beckert, K., Beller, P., Bojowald, J., Bosch, F., Förster, E., Franzke, B., Gumberidze, A., Hagmann, S., Hoszowska, J., Indelicato, P., Klepper, O., Kluge, H.-J., König, St, Kozhuharov, Chr, Ma, X., Manil, B., Mohos, I., Oršić-Muthig, A., Nolden, F., Popp, U., Simionovici, A., Sierpowski, D., Spillmann, U., Stachura, Z., Steck, M., Tachenov, S., Trassinelli, M., Warczak, A., Wehrhan, O., Ziegler, E.

“…A crystal spectrometer has been constructed in the Focusing Compensated Asymmetric Laue geometry covering the energy range between 30 and 120 keV. We summarize…”
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High‐resolution wavelength‐dispersive spectroscopy of K‐shell transitions in hydrogen‐like gold by Gassner, T., Gumberidze, A., Trassinelli, M., Heß, R., Spillmann, U., Banaś, D., Blumenhagen, K.‐H., Bosch, F., Brandau, C., Chen, W., Dimopoulou, Chr, Förster, E., Grisenti, R.E., Hagmann, S., Hillenbrand, P.‐M., Indelicato, P., Jagodzinski, P., Kämpfer, T., Lestinsky, M., Liesen, D., Litvinov, Yu.A., Loetzsch, R., Manil, B., Märtin, R., Nolden, F., Petridis, N., Sanjari, M.S., Schulze, K.S., Schwemlein, M., Simionovici, A., Steck, M., Stöhlker, Th, Szabo, C.I., Trotsenko, S., Uschmann, I., Weber, G., Wehrhan, O., Winckler, N., Winters, D.F.A., Winters, N., Ziegler, E., Beyer, H.F.

“…We present a measurement of K‐shell transitions in H‐like gold (Au78+) using specially developed transmission type crystal spectrometers combined with Ge(i)…”
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Experimental study of the dielectronic recombination into Li-like uranium by Trotsenko, S, Gumberidze, A, Gao, Y, Kozhuharov, C, Fritzsche, S, Beyer, H F, Hagmann, S, Hillenbrand, P-M, Petridis, N, Spillmann, U, Surzhykov, A, Thorn, D B, Weber, G, Stöhlker, Th

“…We have measured the x-rays following 116.15 MeV u−1 collisions with H2 at 35°, 90°, 120° and 150° observation angles with regard to the ion beam direction…”
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Observation of the 2p3/2→2s1/2 intra-shell transition in He-like uranium by Trassinelli, M, Kumar, A, Beyer, H. F, Indelicato, P, Märtin, R, Reuschl, R, Kozhedub, Y. S, Brandau, C, Bräuning, H, Geyer, S, Gumberidze, A, Hess, S, Jagodzinski, P, Kozhuharov, C, Liesen, D, Spillmann, U, Trotsenko, S, Weber, G, Winters, D. F. A, Stöhlker, Th

“…We present the first observation of the 1s2p 3P2 → 1s2s 3S1 transition in He-like uranium. The experiment was performed at the internal gas-jet target of the…”
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A microstrip germanium detector for position-sensitive X-ray spectroscopy by Protic, D., Stohlker, T., Ebeyer, H.F., Bojowald, J., Borchert, G., Gumberidze, A., Hamacher, A., Kozhuharov, C., Ma, X., Mohos, I.

“…For the current X-ray spectroscopy program at the ESR storage ring (GSI-Darmstadt), a position-sensitive germanium detector system was completed. The…”
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The 1s Lamb shift of hydrogen-like very heavy ions measured at an electron cooler by Beyer, H.F.

“…Spontaneous capture of free cooling electrons by bare high-Z ions leads to the emission of X rays. The distinctive features of this new X-ray source for…”
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Crystal optics for hard-X-ray spectroscopy of highly charged ions by Beyer, H.F., Attia, D., Banas, D., Le Bigot, E.-O., Bosch, F., Dousse, J.-Cl, Förster, E., Gumberidze, A., Hagmann, S., Heß, S., Hoszowska, J., Indelicato, P., Jagodzinski, P., Kozhuharov, Chr, Krings, Th, Liesen, D., Ma, X., Manil, B., Mohos, I., Pajek, M., Protić, D., Reuschl, R., Rzadkiewicz, J., Simionovici, A., Spillmann, U., Stachura, Z., Stöhlker, Th, Trassinelli, M., Trotsenko, S., Warczak, A., Wehrhan, O., Ziegler, E.

“…A twin crystal-spectrometer assembly, operated in the focusing compensated asymmetric Laue geometry has been developed for accurate spectroscopy of fast highly…”
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Differential energy measurement between He- and Li-like uranium intra-shell transitions by Trassinelli, M, Kumar, A, Beyer, H F, Indelicato, P, Märtin, R, Reuschl, R, Kozhedub, Y S, Brandau, C, Bräuning, H, Geyer, S, Gumberidze, A, Hess, S, Jagodzinski, P, Kozhuharov, C, Liesen, D, Spillmann, U, Trotsenko, S, Weber, G, Winters, D F A, Stöhlker, Th

“…We present the first clear identification and highly accurate measurement of the intra-shell transition $1s2p\, ^3\!P_2 \to 1s2s\, ^3\!S_1$ of He-like uranium…”
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A high-resolution asymmetric von Hamos spectrometer for low-energy X-ray spectroscopy at the CRYRING@ESR electron cooler by Jagodziński, P, Banaś, D, Pajek, M, Kubala-Kukuś, A, Jabłoński, Ł, Stabrawa, I, Szary, K, Sobota, D, Warczak, A, Gumberidze, A, Beyer, H. F, Lestinsky, M, Weber, G, Stöhlker, Th, Trassinelli, M

“…We present research program and project for high-resolution wavelength-dispersive spectrometer dedicated to low-energy X-ray spectroscopy at the electron…”
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