Newsletter December 2014
Dear colleagues and friends of the HI-Jena,
With this newsletter we want to wish you and your families Merry Christmas and a Happy and Healthy New Year 2015.
Kind Regards,
Helmholtz Institute Jena
Current Status of Metallic Magnetic Calorimeters for High-Resolution X-ray Spectroscopy
Metallic magnetic calorimeters are energy dispersive particle detectors that are operated at temperatures below 100 mK. Applied to x-ray spectroscopy they combine the high energy resolution of crystal spectrometers with the large energy bandwidth of semiconductor detectors which opens a broad range of fascinating applications. After the absorption of a photon its energy is converted into heat. A paramagnetic alloy converts the temperature change into a change of magnetization that is read out by a sensitive SQUID magnetometer [1,2]. With such a metallic magnetic calorimeter we performed two successful measurements at the internal gas target of the Experimental Storage Ring at GSI. In one of these beam times we observed a projectile beam of bare Xe ions interacting with a Xe gas target (see preliminary spectrum in the figure) [3]. Here we achieved an energy resolution below 60 eV from 0 keV to 60 keV. We were able to detect K-lines from differently charged Xe ions, including the Lyman series involving high n levels and could fully resolve the Ly-α-doublet in hydrogen-like Xe. The K-α doublet (as well as the K-α hyper-satellite transitions) produced by double-electron capture events are also clearly visible in the spectrum. This current development is dedicated to experiments of the SPARC collaboration at FAIR (e.g. CRYRING and HESR). Moreover, additional future activities are planned at ion sources and synchrotron as well as intense laser facilities.
This project is performed in close collaboration between the Kirchhoff-Institute for Physics at the University of Heidelberg, Atomic Physics division of GSI-Darmstadt, IOQ at the University of Jena and the Helmholtz-Institute Jena.
References:
[1] C. Pies, et al., Journal of Low Temp Phys, 167:269ff, 2012.
[2] A. Fleischmann, et al., Topics in Appl. Phys., 99:151–216, 2005.
[3] D. Hengstler, submitted to Physica Scripta.
Zweite gemeinsame Lecture Week von RS-APS und HGS-HIRe fand im Schluss Buchenau statt.
The second Joint HGS-HIRe (Helmholtz Graduate School for Hadron and Ion Research) and RS-APS (Research School of Advanced Photon Science) Lecture Week was held at Schloss Buchenau during November 16-20, 2014.
The lecturers Alexandre Gumberidze (EMMI & GSI), Daniel Seipt (HI-Jena), Paul Neumayer (EMMI & GSI) and Ulf Zastrau (U Jena & LCLS) gave a comprehensive overview of the various aspects of "X-ray spectroscopy as a diagnostic tool in atomic and plasma physics". The lectures were complemented by student presentations dedicated to a deeper insight into selected topics.
Upcoming events
Institute’s Seminar
Seminar room HI-Jena, Fröbelstieg 3
Physics with Trapped Charged Particles 2015
Les Houches (France)
The target audience is Ph.D. students or post docs in the field. The school includes lectures on a range of topics from basic confinement to advanced applications and all major topics are covered by problem classes (tutorials) allowing the students to engage in depth with the subjects. Please see the attached poster or the school website for further details on the subjects covered.
The school will take place in Les Houches (France) from January 19-30, 2015 and applications are now open on the school web-site at http://indico.cern.ch/event/pwtcp2015. Please note that the deadline for applications is September 22nd.
35th International Workshop on High Energy Density Physics with Intense Ion and Laser Beams
Hirschegg, Kleinwalsertal (Austria)
The workshop will again provide an international forum to discuss high energy density physics including fundamental science, intense laser and particle beams interaction with matter and inertial confinement fusion. Following the tradition of the “Hirschegg Workshops”, the special atmosphere and schedule will leave enough time for discussions among participants.
Workshop website: http://indico.gsi.de/conferenceDisplay.py?confId=3005
2015 European XFEL Users' Meeting and Satellite Meetings
DESY Hamburg
The European XFEL Users’ Meeting is an annual opportunity to strengthen the interaction between the European XFEL project and the scientific user community. The scope of this meeting includes:
- Progress and current status of the European XFEL
- Instrument design developments and advances
- Selected science applications
- Current developments in the field of XFEL facilities
- Satellite Meetings and Workshops
Workshop website: http://www.xfel.eu/events/users_meetings/2015_users_meeting/
Semiannual Meeting of the HI Jena
Main lecture hall, Max-Wien-Platz 1, Jena
All members of HI Jena are cordially invited to participate in the 8th semiannual palaver of the Helmholtz Institute Jena. Each research group will contribute with a few talks to present their current activities. After several presentations we will continue the discussions in an informal atmosphere at our main building at Fröbelstieg 3.
To facilitate planning, please let us know if you will be participating.
More information: preliminary program
36. Extreme Atomic Systems conference
Riezlern, Kleinwalsertal (Austria)
Modern Atomic Physics witnesses a fast progress towards extreme conditions, in the ultracold and the ultrafast.
To explore these new parameter regimes is the common scheme of this atomic physics meeting.
Recent topics, defined by the participants, include:
- dynamics of atoms, molecules and clusters under light from new sources (XFEL sources and attosecond pulses)
- coherent diffraction imaging
- QED and relativistic effects
- ultracold complex atomic dynamics
- ultracold Rydberg interactions
- entanglement of ions and electrons or light and matter
- technological developments and new measurement tools
Workshop website: http://www.mpipks-dresden.mpg.de/~eas/
Kickoff meeting Matter and Technologies
DESY Hamburg
Registration for the kickoff meeting Matter and Technologies is now open under
https://indico.desy.de/conferenceDisplay.py?ovw=True&confId=11168
where you will also find more details about the meeting, about accomodations etc.
The program is slowly taking shape. It will consist of a plenary part, where the accelerator and the detector topic are together and discuss highlights and plans, and parallel sessions, where details of the ARD and the DTS topic will be discussed.
Recent publications
Tm-based fiber-laser system with more than 200 MW peak power
F. Stutzki, C. Gaida, M. Gebhardt, F. Jansen, C. Jauregui, J. Limpert, and A. Tünnermann
Opt. Lett. 40, 9 (2015)
doi: 10.1364/OL.40.000009
22 GW peak-power fiber chirped-pulse-amplification system
A. Klenke, S. Hädrich, T. Eidam, J. Rothhardt, M. Kienel, S. Demmler, T. Gottschall, J. Limpert, and A. Tünnermann
Opt. Lett. 39, 6875 (2014)
doi: 10.1364/OL.39.006875
Method for the production of highly charged ions with polarized nuclei and zero total electron angular momentum
A. Bondarevskaya, E. A. Mistonova, K. N. Lyashchenko, O. Yu. Andreev, A. Surzhykov, L. N. Labzowsky, G. Plunien, D. Liesen, F. Bosch, and Th. Stöhlker
Phys. Rev. A 90, 064701 (2014)
doi: 10.1103/PhysRevA.90.064701
Relativistic theory for radiative forward electron emission in heavy ion-atom encounters
D. Jakubaßa-Amundsen, R. Müller, A. Surzhykov, and V. Yerokhin
Eur. Phys. J. D 68, 367 (2014)
doi: 10.1140/epjd/e2014-50574-7
Identification of X-ray spectra in the Na-like to O-like rubidium ions in the range of 3.8–7.3 Å
D. Denis-Petit, M. Comet, T. Bonnet, F. Hannachi, F. Gobet, M. Tarisien, M. Versteegen, G. Gosselin, V. Méot, P. Morel, J.-C. Pain, F. Gilleron, A. Frank, V. Bagnoud, A. Blazevic, F. Dorchies, O. Peyrusse, W. Cayzac, and M. Roth
J. Quant. Spectros. Radiat. Transfer 148, 70 (2014)
http://dx.doi.org/10.1016/j.jqsrt.2014.06.004
A concept for multiterawatt fibre lasers based on coherent pulse stacking in passive cavities
S. Breitkopf, T. Eidam, A. Klenke, L. v. Grafenstein, H. Carstens, S. Holzberger, E. Fill, T. Schreiber, F. Krausz, A. Tünnermann, I. Pupeza, and J. Limpert
Light Sci. Appl. 3, e211 (2014)
doi: 10.1038/lsa.2014.92
Ultra-high contrast frontend for high peak power fs-lasers at 1030 nm
H. Liebetrau, M. Hornung, A. Seidel, M. Hellwing, A. Kessler, S. Keppler, F. Schorcht, J. Hein, and M. C. Kaluza
Opt. Express 22, 24776 (2014)
doi: 10.1364/OE.22.024776
Bent crystal spectrometer for both frequency and wavenumber resolved x-ray scattering at a seeded free-electron laser
U. Zastrau, L. Fletcher, E. Förster, E. Galtier, E. Gamboa, S. Glenzer, P. Heimann, H. Marschner, B. Nagler, A. Schropp, O. Wehrhan, and H. Lee
Rev. Sci. Instrum. 85, 093106 (2014)
http://dx.doi.org/10.1063/1.4894821
Integrated reflectivity measurements of hydrogen phthalate crystals for high-resolution soft x-ray spectroscopy
U. Zastrau, and E. Förster
J. Instrum. 9, P09008 (2014)
doi: 10.1088/1748-0221/9/09/P09008
Polarization of atomic bremsstrahlung in coincidence studies
R. A. Müller, V. A. Yerokhin, and A. Surzhykov
Phys. Rev. A 90, 032707 (2014)
doi: 10.1103/PhysRevA.90.032707
Spatio-temporal coherence of free-electron laser radiation in the extreme ultraviolet determined by a Michelson interferometer
V. Hilbert, C. Rödel, G. Brenner, T. Döppner, S. Düsterer, S. Dziarzhytski, L. Fletcher, E. Förster, S. H. Glenzer, M. Harmand, N. J. Hartley, L. Kazak, D. Komar, T. Laarmann, H. J. Lee, T. Ma, M. Nakatsutsumi, A. Przystawik, H. Redlin, S. Skruszewicz, P. Sperling, J. Tiggesbäumker, S. Toleikis, and U. Zastrau
Appl. Phys. Lett. 105, 101102 (2014)
http://dx.doi.org/10.1063/1.4895455
Radiative-electron-capture-to-continuum cusp in U⁸⁸⁺+N₂ collisions and the high-energy endpoint of electron-nucleus bremsstrahlung
P.-M. Hillenbrand, S. Hagmann, D. Atanasov, D. Banaś, K.-H. Blumenhagen, C. Brandau, W. Chen, E. De Filippo, A. Gumberidze, D. L. Guo, D. H. Jakubassa-Amundsen, O. Kovtun, C. Kozhuharov, M. Lestinsky, Yu. A. Litvinov, A. Müller, R. A. Müller, H. Rothard, S. Schippers, M. S. Schöffler, U. Spillmann, A. Surzhykov, S. Trotsenko, N. Winckler, X. L. Yan, V. A. Yerokhin, X. L. Zhu, and Th. Stöhlker
Phys. Rev. A 90, 022707 (2014)
doi: 10.1103/PhysRevA.90.022707
Thermal properties of borate crystals for high power optical parametric chirped-pulse amplification
R. Riedel, J. Rothhardt, K. Beil, B. Gronloh, A. Klenke, H. Höppner, M. Schulz, U. Teubner, C. Kränkel, J. Limpert, A. Tünnermann, M. Prandolini, and F. Tavella
Opt. Express 22, 17607 (2014)
doi: 10.1364/OE.22.017607
Coherent beam combination of Yb:YAG single-crystal rod amplifiers
M. Kienel, M. Müller, S. Demmler, J. Rothhardt, A. Klenke, T. Eidam, J. Limpert, and A. Tünnermann
Opt. Lett. 39, 3278 (2014)
doi: 10.1364/OL.39.003278