Kramm, J. R.; Keller, H. U.; Bredthauer, R.; Tomasko, M.: Imaging technique of the DISR camera on the Huygens lander. In: Scientific Detectors for Astronomy 2005, pp. 199 - 204 (Eds. Beletic, J. E.; Beletic, J. W.; Amico, P.). Springer, Dordrecht, The Netherlands (2006)
Kramm, J. R.; Keller, H. U.; Müller, R.; Germerott, D.; Tomasch, G.: A Marconi CCD42-40 with anti-blooming - Experiences with the OSIRIS CCDs for the ROSETTA mission. In: Scientific detectors for astronomy - The beginning of a new era, pp. 131 - 135 (Eds. Amico, P.; Beletic, J. W.; Beletic, J. E.). Kluwer Academic Press, Dordrecht, The Netherlands (2004)
Kramm, J. R.; Keller, H. U.: CCD's for the Rosetta Science Imaging System OSIRIS. In: Optical Detectors for Astronomy II, pp. 55 - 62 (Eds. Amico, P.; Beletic, J. W.). Kluwer Acadmic Press, The Netherlands (2000)
Michels, D. J.; Schwenn, R.; Howard, R. A.; Bartoe, J.-D. F.; Antiochos, S. K.; Brueckner, G. E.; Cheng, C.-C.; Dere, K. P.; Doschek, G. A.; Mariska, J. T.et al.; Sheeley Jr., N. R.; Socker, D. G.; Daly, P. W.; Inhester, B.; Keller, H.-U.; Kramm, J. R.; Rosenbauer, H.; Lamy, P.; Llebaria, A.; Maucherat, A.; Parker, E. N.; Kahler, S. W.; Koutchmy, S. L.; Smartt, R. N.; Wagner, W. J.; Bougeret, J.-L.; Pick, M.; Noens, J.-C.; Giese, R. H.; Koomen, M. J.; Giovane, F.; Misconi, N. Y.; Simnett, G. M.; Eyles, C.; Bedford, D.; Priest, E.; Lallement, R.: 'LASCO' - A wide-field white light and spectrometric coronagraph for SOHO. In: The SOHO Mission, pp. 55 - 61. ESA Publications Division, ESTEC, Noordwijk, Holland (1989)
Kramm, J. R.; Keller, H. U.: An FFT method to optimise the removal of coherent noise in small and large images. In: Image Processing II, pp. 180 - 184. (1988)
Kramm, J. R.; Keller, H. U.; Thomas, N.: The dynamic range of individual images improved by cross-correlation. In: Image Processing II, pp. 174 - 179. SPIE (1988)
Thomas, N.; Kramm, J. R.; Keller, H. U.: Video of Giotto's encounter with comet P/Halley. In: Dust in the universe, pp. 161 - 167 (Eds. Bailey, M. E.; Williams, D. A.). Cambridge University Press, Cambridge (1988)
Schwarz, G.; Schmidt, K.; Kramm, R.; Wilhelm, K.: Restoration and enhancement of cometary images taken by the Halley Multicolour Camera. In: Proceedings of the 13th annual conference of the remote sensing society. Univ. of Nottingham, Nottingham (1987)
Keller, H. U.; Arpigny, C.; Barbieri, C.; Bonnet, R. M.; Cazes, S.; Coradini, M.; Cosmovici, C. B.; Curdt, W.; Delamere, W. A.; Huebner, W. F.et al.; Hughes, D. W.; Jamar, C.; Kramm, R.; Malaise, D.; Reitsema, H.; Schmidt, H. U.; Schmidt, K.; Schmidt, W. K. H.; Seige, P.; Whipple, F. L.; Wilhelm, K.: Observations by the Halley multicolour Camera. Proc. 20th ESLAB Symposium on the Exploration of Halley's Comet (ESA SP-250, vol. II), pp. 347 - 350 (1986)
Macau-Hercot, D.; Kramm, J. R.; Schmidt, W. K. H.; Macau, J. P.: Optimization, test and calibration of the Halley Moulticolour Camera CCD detectors. ESO Conference and Workshop Proceedings (25), pp. 115 - 124 (1986)
Schwarz, G.; Craubner, H.; Delamere, A.; Göbel, M.; Gonano, M.; Huebner, W. F.; Keller, H. U.; Kramm, R.; Mikusch, E.; Reitsema, H.et al.; Whipple, F. L.; Wilhelm, K.: Detailed analysis of a surface feature on comet Halley. In: Proc. 20th ESLAB Symposium on the Exploration of Halley's Comet, Heidelberg, pp. 371 - 374. (1986)
Kramm, J. R.; Keller, H. U.: Getting more by taking less: A method of summing up pixels on a CCD imager. In: Advances in Electronics and Electron Physiks, pp. 193 - 203. Academic press, Inc., London (1985)
Kramm, J. R.; Keller, H. U.; Behnke, T.: Performance degradations observed on scientific CCD imagers from Loral with erratic substrate grounding. Max-Planck-Institut für Aeronomie, Katlenburg-Lindau, Germany (1994)
The Planetary Plasma Environments group (PPE) has a strong heritage in the exploration of planetary magnetospheres and space plasma interactions throughout the solar system. It has contributed instruments to several past missions that flew-by or orbited Jupiter (Galileo, Cassini, Ulysses). The PPE participates in the JUICE mission by contributing hardware and scientific expertise to the Particle Environment Package (PEP).
Application deadline 1 October 2024. PhD projects in planetary science, solar and stellar physics, solar magnetism, heliophysics, helioseismology, asteroseismology, ...