Jahnvi Pflueger

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Campaniform sensilla (CS) of the locust proximal leg segments are arranged predominantly as homologous groups on the trochantera and femora. Their number is reduced in the more specialized jumping legs. The specific projections of the primary afferent axons from single groups of CS are visualized after backfilling them with CoCl2 introduced through the(More)
Experimental results are presented from vacuum-ultraviolet free-electron laser (FEL) operating in the self-amplified spontaneous emission (SASE) mode. The generation of ultrashort radiation pulses became possible due to specific tailoring of the bunch charge distribution. A complete characterization of the linear and nonlinear modes of the SASE FEL(More)
Five SASE FEL’s and five spontaneous undulator systems are proposed for the FEL lab at TESLA. The SASE systems are the longest. Their total length can be in excess of 300m. In order to keep the beam size small over the whole system a strong focusing FODO lattice is needed. The parameters for the X-ray FEL’s allow to separate between the undulators and the(More)
In SASE FELs, the radiation power has to saturate in a single pass through the undulator. In the VUV and X-ray regime, with undulators ranging in length from several tens to hunderds of meters, even a few percent increase in gain length could mean a lengthening of the undulator by several meters. Therefore, determining what increases the gain length is of(More)
Recent reports on the characteristics of naive human pluripotent stem cells (hPSCs) obtained using independent methods differ. Naive hPSCs have been mainly derived by conversion from primed hPSCs or by direct derivation from human embryos rather than by somatic cell reprogramming. To provide an unbiased molecular and functional reference, we derived(More)
Pump-probe experiments combining pulses from a X-ray FEL and an optical femtosecond laser are very attractive for sub-picosecond time-resolved studies. Since the synchronization between the two independent light sources to an accuracy of 100 fs is not yet solved, it is proposed to derive both femtosecond radiation pulses from the same electron bunch but(More)
During the past years, the experience gained with the TESLA Test Facility FEL resulted in several changes of its design. In addition, as the FEL is developed further to become a user facility during 2003, more details of future development of the FEL and the complete experimental hall for the users is taking shape. In this contribution, some of the aspects(More)
An X-ray diagnostic station will be installed for each of the XFEL undulator beamlines at TESLA. Primary purpose of the X-ray diagnostics is to provide an additional tool for alignment and commissioning of the numerous undulator cells along an XFEL beamline independently from electron beam based alignment procedures. Both methods will complement one(More)
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