Stadtgespräch mit Hans Paul Bahrdt

Bahrdt, Hans Paul

doi:10.1007/978-3-531-91122-9_2

Cited by 9 publications

(9 citation statements)

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“…By cooling the multilayer and a reduction of the pinhole size the heat load capability of the detector, which is mainly determined by the multilayer, should be sufficient to permit a characterization of the helical insertion device UE56 being designed for BESSY II, where its third harmonic will cover the energy range of the current assembly. 16 …”

Section: Discussionmentioning

confidence: 97%

A detector for circular polarization of soft x rays

Holldack

Kachel

Schäfers

et al. 1996

Review of Scientific Instruments

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Section: Discussionmentioning

confidence: 97%

A detector for circular polarization of soft x rays

Holldack

Kachel

Schäfers

et al. 1996

Review of Scientific Instruments

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“…12 Wissenschaftliche Publikationen der 1950er und frühen 1960er Jahre, die das Wort ,,interdisziplinär'' verwendeten, thematisierten so zum einen Formen der Wissenschaftsorganisation in den Vereinigten Staaten. 13 Zudem erschien das Adjektiv in der Auseinandersetzung mit amerikanischen Forschungsarbeiten und Tagungen. 14 Insbesondere deutschsprachige Rezensionen englischsprachiger Veröffentlichungen griffen das Adjektiv ,,interdisciplinary'' direkt aus den besprochenen Texten auf, übersetzten es und transferierten es so in die deutsche Sprache.…”

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Interdisziplinarität im Entwurf

Schregel

2016

N.T.M.

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This article traces the history of interdisciplinarity as a contemporary form of thought and of producing knowledge in the Federal Republic of Germany from 1955 to 1975. It establishes that concepts of interdisciplinary research and teaching circulated in diverse fields of knowledge and modes of articulation, and evaluates the transformations that interdisciplinarity underwent along the way. After detailing the process by which the adjective ''interdisciplinary'' first came into usage in scientific publications in the late 1950s, this article discusses how interdisciplinary research and teaching began to feature in debates about university reforms and the founding of new universities in the 1960s. The article then draws on the examples of Bochum, Konstanz, and Bielefeld to illustrate how debates about disciplinary specialization and interdisciplinary connections unfolded in visual modes of expression such as diagrams or sketches. In a last step, the article examines how visual and textual reflections connected interdisciplinarity to the architecture of envisioned universities, and hence related this time-specific form of thought and knowledge production to the material environments of future research and teaching. Wenn heute von disziplinenübergreifender Wissenschaft die Rede ist, ist die Figur der Interdisziplinarität nicht weit. Hohe Erwartungen und Begriffsverwirrungen gehen hierbei Hand in Hand. So lädt etwa die Autorin einer aktuellen Publikation zur Inter-und Transdisziplinarität zur Diskussion darüber ein, ,,ob interdisziplinäre und transdisziplinäre Wissenschaft Formen sein könnten, sich mehr und anders am Projekt der permanenten Wieder-und N.T.M. 24 (2016) 1-37 0036-6978/16/010001-37

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“…Magnetization measurements of each undulator magnet taken before assembly and a subsequent matching of neighbor magnets in the undulator together with sub micrometer processing accuracy, lead to a relative rms field error of the assembled device below 1.75% corresponding to a phase error below 3.7°both measured at 15 K [16]. The specifications measured by an in vacuum Hallprobe bench are listed in Table I.…”

Section: Undulator Specificationsmentioning

confidence: 99%

First spectral measurements of a cryogenic high-field short-period undulator

Holy

Maier

Zeitler

et al. 2014

Phys. Rev. ST Accel. Beams

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Further development of synchrotron light sources and new concepts for free electron lasers require undulators with short periods and high magnetic fields. A promising approach is the cryogenic permanent magnet undulator concept based on an advanced magnet material. This new rare earth alloy ðPr; NdÞ 2 Fe 14 B, shows an increasing remanent field of up to 1.7 T without the limits of spin reorientation transition. This work presents first spectral measurements of a prototype cryogenic permanent magnet undulator, consisting of 20 periods of 9 mm in length, cooled by a closed cycle cryo-cooler to temperatures below 30 K. The K parameter of 0.837 at RT is increased by more than 15% to 0.966, and an increase of the third harmonics photon flux of up to 66% was achieved. A possible degradation of the on-axis field quality due to thermally induced magnetic field errors, deduced from the measured bandwidth of the spectrum, is below the limits of the detector resolution of 2%.

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Stadtgespräch mit Hans Paul Bahrdt

Cited by 9 publications

References 0 publications

A detector for circular polarization of soft x rays

A detector for circular polarization of soft x rays

Interdisziplinarität im Entwurf

First spectral measurements of a cryogenic high-field short-period undulator

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