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Your search keyword '"Greiner, F"' showing total 6 results
Start Over Author "Greiner, F" Publisher elsevier b.v.
6 results on '"Greiner, F"'

1. Increasing the rate capability for the cryogenic stopping cell of the FRS Ion Catcher

Author

Zhao, J.W., Amanbayev, D., Dickel, T., Miskun, I., Plaß, W.R., Tortorelli, N., San Andrés, S. Ayet, Beck, S., Bergmann, J., Brencic, Z., Constantin, P., Geissel, H., Greiner, F., Gröf, L., Hornung, C., Kuzminchuk, N., Kripkó-Koncz, G., Mardor, I., Pohjalainen, I., Scheidenberger, C., Thirolf, P.G., Bagchi, S., Haettner, E., Kazantseva, E., Kostyleva, D., Oberstedt, A., Pietri, S., Reiter, M.P., Tanaka, Y.K., Wada, M., Balabanski, D.L., Benyamin, D., Harakeh, M.N., Hubbard, N., Kalantar-Nayestanaki, N., Mollaebrahimi, A., Mukha, I., Narang, M., Niwase, T., Patyk, Z., Purushothaman, S., Rotaru, A., Spǎtaru, A., Stanic, G., Vencelj, M., Weick, H., and Yu, J.

Published
2024
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2. First coupling of the FRS particle identification and the FRS-Ion Catcher data acquisition systems: The case of 109In

Author

Spătaru, A., Hornung, C., Dickel, T., Haettner, E., Pietri, S., Ayet San Andrés, S., Bagchi, S., Balabanski, D.L., Bergmann, J., Ebert, J., Finley, A., Geissel, H., Greiner, F., Hall, O., Kaur, S., Lippert, W., Miskun, I., Otto, J.-H., Plaß, W.R., Prochazka, A., Purushothaman, S., Rappold, C., Rink, A.-K., Scheidenberger, C., Tanaka, Y.K., Toernqvist, H., Weick, H., and Winfield, J.S.

Published
2022
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3. Rate capability of a cryogenic stopping cell for uranium projectile fragments produced at 1000 MeV/u

Author

Reiter, M.P., Rink, A.-K., Dickel, T., Haettner, E., Heiße, F., Plaß, W.R., Purushothaman, S., Amjad, F., Ayet San Andrés, S., Bergmann, J., Blum, D., Dendooven, P., Diwisch, M., Ebert, J., Geissel, H., Greiner, F., Hornung, C., Jesch, C., Kalantar-Nayestanaki, N., Knöbel, R., Lang, J., Lippert, W., Miskun, I., Moore, I.D., Nociforo, C., Petrick, M., Pietri, S., Pfützner, M., Pohjalainen, I., Prochazka, A., Scheidenberger, C., Takechi, M., Tanaka, Y.K., Weick, H., Winfield, J.S., and Xu, X.

Published
2016
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4. The FRS Ion Catcher – A facility for high-precision experiments with stopped projectile and fission fragments

Author

Plaß, W.R., Dickel, T., Purushothaman, S., Dendooven, P., Geissel, H., Ebert, J., Haettner, E., Jesch, C., Ranjan, M., Reiter, M.P., Weick, H., Amjad, F., Ayet, S., Diwisch, M., Estrade, A., Farinon, F., Greiner, F., Kalantar-Nayestanaki, N., Knöbel, R., Kurcewicz, J., Lang, J., Moore, I., Mukha, I., Nociforo, C., Petrick, M., Pfützner, M., Pietri, S., Prochazka, A., Rink, A.-K., Rinta-Antila, S., Schäfer, D., Scheidenberger, C., Takechi, M., Tanaka, Y.K., Winfield, J.S., and Yavor, M.I.

Published
2013
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5. Accurate simultaneous lead stopping power and charge-state measurements in gases and solids: Benchmark data for basic atomic theory and nuclear applications.

Author

Ishikawa, S., Geissel, H., Purushothaman, S., Weick, H., Haettner, E., Iwasa, N., Scheidenberger, C., Sørensen, A.H., Tanaka, Y.K., Abel, T., Äystö, J., Bagchi, S., Dickel, T., Drozd, V., Franczak, B., Greiner, F., Harakeh, M.N., Kalantar-Nayestanaki, N., Kindler, B., and Knöbel, R.

Subjects
*ATOMIC theory, *LEAD, *NUCLEAR physics, *ATOMIC collisions, *HEAVY ions, *OPTIMAL stopping (Mathematical statistics)
Abstract

We have measured for the first time simultaneously both the mean charge states and stopping powers of (35–280) MeV/u 208Pb ions in gases and solids with an accuracy of 1%. The existence at lower energies and disappearance at higher of density effects in the charge-state distribution and the corresponding stopping power are directly confirmed and comparisons with widely used theories and simulations for heavy ions demonstrate strong deviations of up to 27%. However, an unprecedented prediction power of better than 3% has been achieved for the energy loss when the measured mean charge-states are implemented in the Lindhard-Sørensen theory. Our present benchmark data contribute to an improved understanding of the basic atomic collision processes and to numerous applications in nuclear physics. Extending the GANIL data [1] to higher accuracy and energies, we can now answer at which velocities the Bohr-Lindhard density effect in stopping will vanish. [ABSTRACT FROM AUTHOR]

Published
2023
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6. First spatial separation of a heavy ion isomeric beam with a multiple-reflection time-of-flight mass spectrometer.

Author

Dickel, T., Plaß, W.R., Ayet San Andres, S., Ebert, J., Geissel, H., Haettner, E., Hornung, C., Miskun, I., Pietri, S., Purushothaman, S., Reiter, M.P., Rink, A.-K., Scheidenberger, C., Weick, H., Dendooven, P., Diwisch, M., Greiner, F., Heiße, F., Knöbel, R., and Lippert, W.

Subjects
*CRYOGENICS, *HEAVY ions, *METASTABLE states, *MASS spectrometers, *LOW temperature physics
Abstract

211 Po ions in the ground and isomeric states were produced via 238 U projectile fragmentation at 1000 MeV/u. The 211 Po ions were spatially separated in flight from the primary beam and other reaction products by the fragment separator FRS. The ions were energy-bunched, slowed-down and thermalized in a gas-filled cryogenic stopping cell (CSC). They were then extracted from the CSC and injected into a high-resolution multiple-reflection time-of-flight mass spectrometer (MR-TOF-MS). The excitation energy of the isomer and, for the first time, the isomeric-to-ground state ratio were determined from the measured mass spectrum. In the subsequent experimental step, the isomers were spatially separated from the ions in the ground state by an ion deflector and finally collected with a silicon detector for decay spectroscopy. This pioneering experimental result opens up unique perspectives for isomer-resolved studies. With this versatile experimental method new isomers with half-lives longer than a few milliseconds can be discovered and their decay properties can be measured with highest sensitivity and selectivity. These experiments can be extended to studies with isomeric beams in nuclear reactions. [ABSTRACT FROM AUTHOR]

Published
2015
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