Zobrazeno 1 - 10
of 151
pro vyhledávání: '"Gutsmiedl, E."'
Autor:
Brenner, Th., Fierlinger, P., Geltenbort, P., Gutsmiedl, E., Hollering, A., Lauer, T., Petzoldt, G., Ruhstorfer, D., Seeman, K. M., Soltwedel, O., Stuiber, St., Taubenheim, B., Windmayer, D., Zechlau, T.
We report on the fabrication and use of deuterated polyethylene (dPE) as a coating material for ultra-cold neutron (UCN) storage and transport. The Fermi potential has been determined to be 214~neV and the wall loss coefficient $\eta$ is 1.3$\cdot$10
Externí odkaz:
http://arxiv.org/abs/1502.06252
Autor:
Altarev, I., Babcock, E., Beck, D., Burghoff, M., Chesnevskaya, S., Chupp, T., Degenkolb, S., Fan, I., Fierlinger, P., Frei, A., Gutsmiedl, E., Knappe-Grüneberg, S., Kuchler, F., Lauer, T., Link, P., Lins, T., Marino, M., McAndrew, J., Niessen, B., Paul, S., Petzoldt, G., Schläpfer, U., Schnabel, A., Sharma, S., Singh, J., Stoepler, R., Stuiber, S., Sturm, M., Taubenheim, B., Trahms, L., Voigt, J., Zechlau, T.
Publikováno v:
Rev. Sci. Instrum. 85, 075106 (2014)
A versatile and portable magnetically shielded room with a field of (700 \pm 200) pT within a central volume of 1m x 1m x 1m and a field gradient less than 300 pT/m is described. This performance represents more than a hundred-fold improvement of the
Externí odkaz:
http://arxiv.org/abs/1403.6467
Autor:
Salvat, D. J., Gutsmiedl, E., Liu, C. -Y., Geltenbort, P., Orecchini, A., Paul, S., Schober, H.
The dynamical structure factor of solid $^{15}$N$_{2}$ in the $\alpha$ phase ($T<35$K) is measured at the IN4 time-of-flight spectrometer at the Institut Laue Langevin, and the potential performance of this substance as a UCN converter is assessed. T
Externí odkaz:
http://arxiv.org/abs/1306.5455
Autor:
Altarev, I., Ban, G., Bison, G., Bodek, K., Daum, M., Fertl, M., Fierlinger, P., Franke, B., Gutsmiedl, E., Heil, W., Henneck, R., Horras, M., Khomutov, N., Kirch, K., Kistryn, S., Kraft, A., Knecht, A., Knowles, P., Kozela, A., Lauer, T., Lauss, B., Lefort, T., Lemière, Y., Mtchedlishvili, A., Naviliat-Cuncic, O., Pazgalev, A., Petzoldt, G., Piegsa, F. M., Pierre, E., Pignol, G., Quéméner, G., Rebetez, M., Rebreyend, D., Roccia, S., Schmidt-Wellenburg, P., Severijns, N., Sobolev, Yu., Weis, A., Zejma, J., Zenner, J., Zsigmond, G.
Physics at the Planck scale could be revealed by looking for tiny violations of fundamental symmetries in low energy experiments. In 2008, a sensitive test of the isotropy of the Universe using has been performed with stored ultracold neutrons (UCN),
Externí odkaz:
http://arxiv.org/abs/1009.6060
Autor:
Frei, A., Böhle, F., Bozhanova, R., Gutsmiedl, E., Huber, T., Klenke, J., Paul, S., Wlokka, S.
We have investigated solid oxygen as a converter material for the production of ultra-cold neutrons. In a first series of experiments the crystal preparation was examined. An optically semi-transparent solid $\alpha$-oxygen crystal has been prepared.
Externí odkaz:
http://arxiv.org/abs/1006.2970
Our recent neutron scattering measurements of phonons and magnons in solid \alpha-oxygen have led us to a new understanding of the production mechanismen of ultra-cold-neutrons (UCN) in this super-thermal converter. The UCN production in solid \alpha
Externí odkaz:
http://arxiv.org/abs/0911.4398
Autor:
Frei, A., Gutsmiedl, E., Morkel, C., Mueller, A. R., Paul, S., Schober, H., Rols, S., Unruh, T.
Our recent neutron scattering measurements of phonons and other quasi-particle excitations in solid deuterium (sD$_2$) and the extraction of the density of states for phonons and rotational transitions in sD2 have led us to a new understanding of the
Externí odkaz:
http://arxiv.org/abs/0910.0166
Autor:
Altarev, I., Baker, C. A., Ban, G., Bodek, K., Daum, M., Fierlinger, P., Geltenbort, P., Green, K., van der Grinten, M. G. D., Gutsmiedl, E., Harris, P. G., Henneck, R., Horras, M., Iaydjiev, P., Ivanov, S., Khomutov, N., Kirch, K., Kistryn, S., Knecht, A., Knowles, P., Kozela, A., Kuchler, F., Kuźniak, M., Lauer, T., Lauss, B., Lefort, T., Mtchedlishvili, A., Naviliat-Cuncic, O., Paul, S., Pazgalev, A., Pendlebury, J. M., Petzoldt, G., Pierre, E., Plonka-Spehr, C., Quéméner, G., Rebreyend, D., Roccia, S., Rogel, G., Severijns, N., Shiers, D., Sobolev, Yu., Stoepler, R., Weis, A., Zejma, J., Zenner, J., Zsigmond, G.
Publikováno v:
Phys. Rev. D 80, 032003 (2009)
We performed ultracold neutron (UCN) storage measurements to search for additional losses due to neutron (n) to mirror-neutron (n') oscillations as a function of an applied magnetic field B. In the presence of a mirror magnetic field B', UCN losses w
Externí odkaz:
http://arxiv.org/abs/0905.4208
Autor:
Frei, A., Gutsmiedl, E., Morkel, C., Müller, A. R., Paul, S., Urban, M., Schober, H., Rols, S., Hölzel, T. Unruh M.
The dynamics of solid deuterium (sD2) is studied by means of inelastic scattering (coherent and incoherent) of thermal and cold neutrons at different temperatures and para-ortho ratios. In this paper, the results for the generalized density of states
Externí odkaz:
http://arxiv.org/abs/0905.4017
Autor:
Altarev, I., Baker, C. A., Ban, G., Bison, G., Bodek, K., Daum, M., Fierlinger, P., Geltenbort, P., Green, K., van der Grinten, M. G. D., Gutsmiedl, E., Harris, P. G., Heil, W., Henneck, R., Horras, M., Iaydjiev, P., Ivanov, S. N., Khomutov, N., Kirch, K., Kistryn, S., Knecht, A., Knowles, P., Kozela, A., Kuchler, F., Kuźniak, M., Lauer, T., Lauss, B., Lefort, T., Mtchedlishvili, A., Naviliat-Cuncic, O., Pazgalev, A., Pendlebury, J. M., Petzoldt, G., Pierre, E., Pignol, G., Quéméner, G., Rebetez, M., Rebreyend, D., Roccia, S., Rogel, G., Severijns, N., Shiers, D., Sobolev, Yu., Weis, A., Zejma, J., Zsigmond, G.
Publikováno v:
Phys.Rev.Lett.103:081602,2009
A clock comparison experiment, analyzing the ratio of spin precession frequencies of stored ultracold neutrons and $^{199}$Hg atoms is reported. %57 No daily variation of this ratio could be found, from which is set an upper limit on the Lorentz inva
Externí odkaz:
http://arxiv.org/abs/0905.3221