Newsletter February 2014
Dear colleagues and friends of the HI-Jena,
welcome to the first issue of the newsletter of the Helmholtz Institute Jena in 2014.
As clearly visible from the group photo recently taken at the semi-annual palaver of the HI-Jena (cf. below), the HI-Jena has grown substantially since its foundation in 2009.
We are happy to provide you with some informations and news concerning the HI-Jena and its activities.
Kind Regards,
Helmholtz Institute Jena
Semi-annual Palaver Helmholtz Institute Jena
On February 12th, 2014 the Helmholtz Institute Jena invited to its semi-annual palaver followed by a small reception in its main building.
On this occacion colleagues from Jena, HZDR Dresden and GSI Darmstadt reported about recent and ongoing research activities. The talks spanned the whole range from laser development and experimental activities with HI-Jena involvement to new theoretical proposals.
Moreover, the employee representatives of FSU Jena and GSI took the opportunity to introduce themselves and their work to the members of the Helmholtz Institute.
Research Highlight
Highly-Segmented Hard X-Ray Detectors for Compton Polarimetry
Particle and photon polarization phenomena occurring in collisions of relativistic particles with matter have recently attracted particular interest. Investigations of the emitted characteristic x-ray and radiative transition have been found to be a versatile tool for probing our present understanding of the dynamics of charged particles in extreme electromagnetic fields. For example, studies of the polarization of hard x-rays emitted in energetic heavy-ion atom collisions provide detailed information of the collision dynamics as well as of the atomic structure at high-Z [1]. Moreover, hard x-ray polarimetry also opens a novel route for polarization diagnosis of spin-polarized ion and electron beams with important implications for future experiments on the effects of parity non-conservation for the structure of atomic systems at the future FAIR facility [2]. However, due to the lack of efficient polarimeters, all previous studies of high-energy radiation stemming from highly-charged ions or samples exposed to synchrotron radiation were severely restricted to measurements of the spectral and angular distribution.
Owing to recent progress in the development of highly segmented solid-state detectors, a novel type of polarimeter for the hard x-ray regime has become available. Applied as Compton polarimeters, two-dimensional position-sensitive x-ray detectors now enable precise and efficient measurements of photon linear polarization properties in the energy region between roughly 60 and a few 100 keV [3]. In recent years a dedicated Si(Li) polarimeter shown in Fig. 1 which was developed within the SPARC collaboration was successfully used in several polarization studies performed at GSI, TU Darmstadt and DESY. In Fig. 2 the anisotropic distribution of Compton scattered photons inside the detector crystal is shown. An analysis of this scattering distribution leads to the determination of the degree and orientation of the linear polarization of the incident radiation.
Among the results yielded by recent polarization measurements, it has also enabled for the very time for a precise determination of higher-order multipole contributions to characteristic transitions in high-Z ions with a sensitivity to QED contributions [4]. Moreover, the investigation of bremsstrahlung arising from polarized electrons confirmed the feasibility of a proposed scheme for polarization monitoring of spin-polarized ions beams which is planned for the FAIR project [5]. In close collaboration with the theory group of HI-Jena a recent measurement of elastically scattered hard x-ray radiation at the PETRA III synchrotron of DESY aims for a detailed analysis of the polarization-correlation between the incident and the outgoing photons. Data analysis of this experiment is ongoing.
Finally, we like to emphasize that the 2D sensitivity of the detector allows discriminating between the various radiation sources according to their spatial position (see right side on Fig.2). Compared to conventional solid states detectors for hard x-rays, this is a unique feature to allow for an efficient control and eliminations of unwanted effects due to background radiation.
[1] Th. Stöhlker et al., Eur. Phys. J.-Spec. Top. 169, 5 (2009)
[2] A. Bondarevskaya et al., J. Phys. B 43, 245001 (2010)
[3] G. Weber et al., JINST 5, C07010 (2010)
[4] G. Weber et al., Phys. Rev. Lett. 105, 243002 (2010)
[5] R. Märtin et al., Phys. Rev. Lett. 108, 26480 (2012)
News and Announcements
The Helmholtz Institute Jena has a new logo
The new official logo of the Helmholtz Institute is now available for download in various graphics formats on the following website:
https://www.gsi.de/en/presse_medien/mediathek/logo_download.htm
Upcoming events
Topical Workshop of the FLAIR Collaboration
MPIK, Heidelberg
The workshop is jointly organized by the Max-Planck-Institut für Kernphysik MPIK Heidelberg, the GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt, the Johannes Gutenberg-Universität, Mainz, and the Stefan-Meyer-Institut für Subatomare Physik, Vienna.
The Facility for Low-Energy Antiproton and Ion Research (FLAIR) Collaboration has been formed within the new international Facility for Antiproton and Ion Research (FAIR) at GSI, Darmstadt, Germany, and makes use of the beams of antiprotons and highly-charged ions from NESR to further decelerate and cool them in two storage rings (LSR and USR) and a universal trap facility HITRAP. Antiprotons will be provided in both slow and fast extraction with energies down to the keV-range. The anticipated beam intensities will be significantly larger than currently available reaching unprecedented phase space densities that enable many new experiments. The facility will be also used with highly charged ions, leading to a strong overlap with the SPARC collaboration.
The workshop program will concentrate on the following topics:
- Experiments with antiprotons and antihydrogen
- Highly charged ions in traps and rings for spectroscopy
- Interactions of low-energy highly charged ions and antiprotons with composite and solid targets
- Nuclear and particle physics with antiprotons
- Heavy-ion experiments, ion surface interactions, collision dynamics
- X-ray spectroscopy of antiprotonic atoms
- New instrumentation and facilities
In order to allow the attendance of all sessions, no parallel sessions will be held.
More information: Link
EMMI Workshop on "X-Ray Scattering on High Energy Density Plasmas – Status and Future Developments"
Lecture Hall KBW, GSI, Darmstadt
The workshop will cover all aspects of XRTS including experiments at different facilities, data analysis, theory and simulations. There will be no conference fee but registration is needed to allow for a more efficient organization. Moreover, we have some funds to provide financial support for travel or accommodation. In particular, PhD students are encouraged to apply.
The first day will provide tutorials, in particular but not exclusively, for young scientist. These tutorials will cover both experimental techniques and the theoretical background of x‐ray scattering. This part is supposed to enhance the mutual understanding of experimentalists and theorists and, thus, to eliminating barriers for common efforts. For the second day, we invite participants to present new results with talks and posters. The last day will be devoted to the emerging possibilities of x‐ray scattering at free electron lasers. We particularly invite participants with experiences at FEL facilities (FLASH, LCLS) to present their results.
More information, registration and application for travel support will be made available here: Link
12th International Symposium on Electron Beam Ion Sources and Traps (EBIST'14)
East Lansing, Michigan, USA
The 12th International Symposium on Electron Beam Ion Sources and Traps, EBIST'14 will be held on May 18 - 21, 2014 at the National Superconducting Cyclotron Laboratory (NSCL) on the campus of Michigan State University (MSU) in the mid-western "Spartan" city of East Lansing, Michigan, USA.
NSCL is a rare-isotope accelerator facility conducting advanced research in fundamental nuclear science, nuclear astrophysics, accelerator physics, and related instrumentation technologies. The facility was recently selected by the Department of Energy (DOE) to establish the US national user Facility for Rare Isotope Beams (FRIB) for basic research with rare-isotope beams.
The EBIST symposia date back to 1977 and have taken place every 3 to 4 years to specifically discuss progress and exchange ideas in the design, development, applications of electron beam ion sources and traps, and the physics with highly charged ions. The topics to be covered in 2014 are:
- Progress and status of EBIS/T facilities,
- Atomic spectroscopy of highly charged ions,
- Charge-exchange and surface interaction with highly charged ions,
- Charge breeding of stable and radioactive isotopes,
- Nuclear physics with highly charged ions.
As in the past, the program of EBIST'14 will feature reviews and reports in a single session. We intend to organize a series of invited talks highlighting recent achievements and the future prospects in the above fields. In addition, contributions covering recent results will be selected for oral presentations. Furthermore, a small poster session is planned.
17th International Conference on the Physics of Highly Charged Ions (HCI2014)
San Carlos de Bariloche, Argentinia
The field of highly charged ions has seen in the last years a promising evolution originating from bold progress in theory and significant advances in experimental techniques.
The Bariloche HCI2014 conference aims at bringing together experimentalists and theoreticians from a wide range of fields:
- Fundamental Aspects, Structure and Spectroscopy
- Collisions with Electrons, Ions, Atoms and Molecules
- Interaction with Clusters, Surfaces and Solids
- Interactions with Photons and Plasmas
- Strong Field Processes
- Production, Experimental Developments and Applications
There will be no parallel sessions. Ample space for posters close to the main conference hall is available.
9th International Conference on Atomic and Molecular Data and Their Applications (ICAMDATA 2014)
Lecture hall 1, Abbeanum, Fröbelstieg 1
ICAMDATA 2014 is continuing the series of international conferences to promote the use of atomic and molecular data in various fields of science and technology, and provides a forum for the interaction of data producers, database designers and compilers, and data users. The conference will focus on the following topics.
I. Applications of and needs for atomic and molecular data
- Astrophysics and atmospheric physics
- Magnetic and inertial fusion
- Laboratory and industrial plasmas
- Lighting science and technology
- Biomedicine and biophysics
- Combustion and environmental sciences and technology
- Surface physics, gaseous electronics, solid state spectroscopy, optoelectronics, etc.
II. Atomic and molecular data collections, assessment and dissemination
- Data collection and selection, critical evaluation, estimates of uncertainties
- Databases, data exchange and dissemination
- Data center activities, standardization of data formats
III. Experimental and theoretical atomic and molecular data generation
- Atomic and molecular structure and spectroscopy
- Electron collisions with atoms and molecules
- Heavy particle collisions
- Particle - surface interactions
More information: http://www.icamdata.uni-jena.de/
9th International Conference on Nuclear Physics in Storage Rings (STORI'14)
Sankt Goar, Germany
The conference, which will be hosted by the GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany, is the 9th of its kind and follows the previous conferences held at Lund, St. Petersburg, Bernkastel-Kues, Bloomington, Uppsala, Jülich, Lanzhou and Frascati.
The purpose of the conference is to provide a forum for the international research community for the presentation and discussion of all aspects of nuclear physics at storage rings and related fields.
In this spirit the conference will cover the following topics:
- Nuclear structure and astrophysics
- In-ring nuclear reactions
- Hadron spectroscopy and sub-nucleonic degrees of freedom
- Antiproton-nucleus interactions
- Stored radioactive beams
- Fundamental symmetries and interactions
- Elementary atomic processes explored with cooled few-electron ions
- Nuclear properties by atomic physics techniques
- Beam-cooling, manipulation and diagnostics
- Targets and detectors
- Ion traps and electrostatic rings
- Future facilities
The scientific program will consist of invited talks, contributed talks and a poster session. Besides the experts in the field we encourage in particular young scientists to join the conference and to present their results.
The conference will be held at the “Schloss Rheinfels” Castle in Sankt Goar, Germany. Sankt Goar is a picturesque little town located on the Rhine river, about halfway between Köln and Mainz, close to the famous “Loreley”. It is located within the UNESCO cultural heritage site “Mittleres Rheintal”. The conference venue, Schloss Rheinfels, is situated above Sankt Goar, providing spectacular views of the valley of the Rhine river.
More information and registration: http://web-docs.gsi.de/~stori14/
Recent publications
Energy scaling of femtosecond amplifiers using actively controlled divided-pulse amplification
M. Kienel, A. Klenke, T. Eidam, S. Hädrich, J. Limpert, and A. Tünnermann
Opt. Lett. 39, 1049 (2014)
doi: 10.1364/OL.39.001049
Design considerations for a high power, ultrabroadband optical parametricchirped-pulse amplifier
M. J. Prandolini, R. Riedel, M. Schulz, A. Hage, H. Höppner, and F. Tavella
Opt. Express 22, 1594 (2014)
doi: 10.1364/OE.22.001594
Experimental investigation of hole boring and light sail regimes of RPA by varying laser and target parameters
S. Kar, K. F. Kakolee, M. Cerchez, D. Doria, A. Macchi, P. McKenna, D. Neely, J. Osterholz, K. Quinn, B. Ramakrishna, G. Sarri, O. Willi, X. H. Yuan, M. Zepf, and M. Borghesi
Plasma. Phys. Contr. F. 55, 124030 (2013)
doi: 10.1088/0741-3335/55/12/124030
Laser-driven generation of collimated ultra-relativistic positron beams
G. Sarri, W. Schumaker, A. D. Piazza, K. Poder, J. M. Cole, M. Vargas, D. Doria, S. Kushel, B. Dromey, G. Grittani, L. Gizzi, M. E. Dieckmann, A. Green, V. Chvykov, A. Maksimchuk, V. Yanovsky, Z. H. He, B. X. Hou, J. A. Nees, S. Kar, Z. Najmudin, A. G. R. Thomas, C. H. Keitel, K. Krushelnick, and M. Zepf
Plasma. Phys. Contr. F. 55, 124017 (2013)
doi: 10.1088/0741-3335/55/12/124017
Polarization correlations in the elastic Rayleigh scattering of photons by hydrogenlike ions
A. Surzhykov, V. A. Yerokhin, T. Jahrsetz, P. Amaro, Th. Stöhlker, and S. Fritzsche
Phys. Rev. A 88, 062515 (2013)
doi: 10.1103/PhysRevA.88.062515
Charge transfer of slow highly charged xenon ions in collisions with magnesium atoms
W. Chen, G. Vorobyev, D. Guo, P.-M. Hillenbrand, F. Herfurth, S. Hagmann, U. Spillmann, S. Trotsenko, A. Gumberidze, and Th. Stöhlker
Phys. Rev. A 88, 052703 (2013)
doi: 10.1103/PhysRevA.88.052703
High-resolution measurement of the time-modulated orbital electron capture and of the β+ decay of hydrogen-like 142Pm^60+ ions
P. Kienle, F. Bosch, P. Bühler, T. Faestermann, Y. Litvinov, N. Winckler, M. Sanjari, D. Shubina, D. Atanasov, H. Geissel, V. Ivanova, X. Yan, D. Boutin, C. Brandau, I. Dillmann, Ch. Dimopoulou, R. Hess, P.-M. Hillebrand, T. Izumikawa, R. Knöbel, J. Kurcewicz, N. Kuzminchuk, M. Lestinsky, S. Litvinov, X. Ma, L. Maier, M. Mazzocco, I. Mukha, C. Nociforo, F. Nolden, Ch. Scheidenberger, U. Spillmann, M. Steck, Th. Stöhlker, B. Sun, F. Suzaki, T. Suzuki, S. Torilov, M. Trassinelli, X. Tu, M. Wang, H. Weick, D. F. A. Winters, N. Winters, P. Woods, T. Yamaguchi, G. Zhang, and T. Ohtsubo
Phys. Lett. B 726, 638 (2013)
http://dx.doi.org/10.1016/j.physletb.2013.09.033
Nuclear physics with unstable ions at storage rings
F. Bosch, Y. A. Litvinov, and T. Stöhlker
Prog. Part. Nucl. Phys. 73, 84 (2013)
http://dx.doi.org/10.1016/j.ppnp.2013.07.002
Plasmon measurements with a seeded x-ray laser
L. B. Fletcher, E. Galtier, P. Heimann, H. J. Lee, B. Nagler, J. Welch, U. Zastrau, J. B. Hastings, and S. H. Glenzer
J. Instrum. 8, C11014 (2013)
doi: 10.1088/1748-0221/8/11/C11014
Focusing and transport of high-intensity multi-MeV proton bunches from a compact laser-driven source
S. Busold, D. Schumacher, O. Deppert, C. Brabetz, S. Frydrych, F. Kroll, M. Joost, H. Al-Omari, A. Blazevic, B. Zielbauer, I. Hofmann, V. Bagnoud, T. E. Cowan, and M. Roth
Phys. Rev. ST Accel. Beams 16, 101302 (2013)
doi: 10.1103/PhysRevSTAB.16.101302
Preparation and characterization of nanometer-thin freestanding polymer foils for laser-ion acceleration
B. Aurand, B. Elkin, L.-O. Heim, B. Lommel, B. Kindler, M. Tomut, C. Rödel, S. Kuschel, O. Jäckel, J. Barz, and T. Kühl
J. Polym. Sci., Part B: Polym. Phys. 51, 1355 (2013)
doi: 10.1002/polb.23340
XUV coherent diffraction imaging in reflection geometry with low numerical aperture
M. Zürch, C. Kern, and C. Spielmann
Opt. Express 21, 21131 (2013)
doi: 10.1364/OE.21.021131
Coherent Control at Its Most Fundamental: Carrier-Envelope-Phase-Dependent Electron Localization in Photodissociation of a H₂+ Molecular Ion Beam Target
T. Rathje, A. M. Sayler, S. Zeng, P. Wustelt, H. Figger, B. D. Esry, and G. G. Paulus
Phys. Rev. Lett. 111, 093002 (2013)
doi: 10.1103/PhysRevLett.111.093002
Halo coupling and cleaning by a space charge resonance in high intensity beams
I. Hofmann
Phys. Rev. ST Accel. Beams 16, 084201 (2013)
doi: 10.1103/PhysRevSTAB.16.084201
Nonsequential double ionization of N_{2} in a near-single-cycle laser pulse
M. Kübel, N. Kling, K. J. Betsch, N. Camus, A. Kaldun, U. Kleineberg, I. Ben-Itzhak, R. R. Jones, G. G. Paulus, T. Pfeifer, J. Ullrich, R. Moshammer, M. F. Kling, and B. Bergues
Phys. Rev. A 88, 023418 (2013)
doi: 10.1103/PhysRevA.88.023418
Nuclear physics experiments with ion storage rings
Y. Litvinov, S. Bishop, K. Blaum, F. Bosch, C. Brandau, L. Chen, I. Dillmann, P. Egelhof, H. Geissel, R. Grisenti, S. Hagmann, M. Heil, A. Heinz, N. Kalantar-Nayestanaki, R. Knöbel, C. Kozhuharov, M. Lestinsky, X. Ma, T. Nilsson, F. Nolden, A. Ozawa, R. Raabe, M. Reed, R. Reifarth, M. Sanjari, D. Schneider, H. Simon, M. Steck, Th. Stöhlker, B. Sun, X. Tu, T. Uesaka, P. Walker, M. Wakasugi, H. Weick, N. Winckler, P. Woods, H. Xu, T. Yamaguchi, Y. Yamaguchi, and Y. Zhang
Nucl. Instr. Meth. Phys. Res. B 317, 603 (2013)
http://dx.doi.org/10.1016/j.nimb.2013.07.025
Photoelectron angular distributions for the two-photon sequential double ionization of xenon by ultrashort extreme ultraviolet free electron laser pulses
S. Mondal, R. Ma, K. Motomura, H. Fukuzawa, A. Yamada, K. Nagaya, S. Yase, Y. Mizoguchi, M. Yao, A. Rouzée, A. Hundertmark, M. J. J. Vrakking, P. Johnsson, M. Nagasono, K. Tono, T. Togashi, Y. Senba, H. Ohashi, M. Yabashi, T. Ishikawa, I. P. Sazhina, S. Fritzsche, N. M. Kabachnik, and K. Ueda
J. Phys. B 46, 164022 (2013)
doi: 10.1088/0953-4075/46/16/164022
Schottky mass measurements of heavy neutron-rich nuclides in the element range 70 ≤ Z ≤ 79 at the GSI Experimental Storage Ring
D. Shubina, R. B. Cakirli, Yu. A. Litvinov, K. Blaum, C. Brandau, F. Bosch, J. J. Carroll, R. F. Casten, D. M. Cullen, I. J. Cullen, A. Y. Deo, B. Detwiler, C. Dimopoulou, F. Farinon, H. Geissel, E. Haettner, M. Heil, R. S. Kempley, C. Kozhuharov, R. Knöbel, J. Kurcewicz, N. Kuzminchuk, S. A. Litvinov, Z. Liu, R. Mao, C. Nociforo, F. Nolden, Z. Patyk, W. R. Plass, A. Prochazka, M. W. Reed, M. S. Sanjari, C. Scheidenberger, M. Steck, Th. Stöhlker, B. Sun, T. P. D. Swan, G. Trees, P. M. Walker, H. Weick, N. Winckler, M. Winkler, P. J. Woods, T. Yamaguchi, and C. Zhou
Phys. Rev. C 88, 024310 (2013)
doi: 10.1103/PhysRevC.88.024310
Towards imaging of ultrafast molecular dynamics using FELs
A. Rouzée, P. Johnsson, L. Rading, A. Hundertmark, W. Siu, Y. Huismans, S. Düsterer, H. Redlin, F. Tavella, N. Stojanovic, A. Al-Shemmary, F. Lépine, D. M. P. Holland, T. Schlatholter, R. Hoekstra, H. Fukuzawa, K. Ueda, and M. J. J. Vrakking
J. Phys. B 46, 164029 (2013)
doi: 10.1088/0953-4075/46/16/164029