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- Josefson, Kristina, et al.
(author)
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Student participation in developing student feedback
- 2011
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In: Quality in Higher Education. - : Informa UK Limited. - 1353-8322 .- 1470-1081. ; 17:2, s. 257-262
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Journal article (peer-reviewed)abstract
- Sweden has a high level of student influence. At Lund University, students are not viewed as counterparts but partners in the university’s activities. Lund University has carried out Student Satisfaction Surveys (baromoters) since the 1990s and an overview has shown that an evaluation culture has grown during the past decade. It is, however, time to pose the critical question: do we ask the right questions? It is important that course evaluations and the institution-wide barometers complement each other without too much overlap. This article proposes a different way to carry through a barometer, where students’ experience mirrors the responses of alumni.
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- Stråhlman, Christian, et al.
(author)
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Angle-resolved time-of-flight spectroscopy applied to multi-bunch operation at MAX-lab: a design study
- 2013
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In: IOP Conference Series. - : IOP Publishing. - 1742-6588 .- 1742-6596. ; 425
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Conference paper (peer-reviewed)abstract
- Angle-resolved time-of-flight (ARTOF) spectrometers have found use in a number of applications, including ARPES. However, the fundamental requirement of an external start trigger matching the read-out time of the instrument limits its usability at many storage rings. Hitherto all reported experiments have been performed at storage rings capable of running in single-bunch mode. To eliminate this restriction, we propose a method where a pulsed electronic gate is introduced to allow for ARTOF usage at normal multi-bunch operation of the MAX II storage ring. This paper will show the working principle and outline the design for this technique.
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- Stråhlman, Christian
(author)
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On the Challenges for Time-of-Flight Electron Spectroscopy at Storage Rings
- 2014
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Licentiate thesis (other academic/artistic)abstract
- Time-of-flight (TOF) techniques for energy analysis have been common in electron spectroscopy for many decades. TOF-based electron spectrometers benefit from higher transmission and information rate compared to their main competitor: the hemispherical analyser; the drawback being their lower energy resolution. However, the advent of angle-resolved TOF spectrometers for electron energy analysis challenges this perception. State-of-the-art TOF analysers, such as the Scienta ARTOF, offer energy resolution comparable to the hemispherical analyser resolution, while keeping the high transmission. Electron TOF should therefore be valuable complementary instrumentation at any future high-brilliance storage rings such as MAX IV. TOF instruments demand pulsed light with comparably low repetition rates. At storage rings they often rely on the availability of single bunch modes with lower pulse repetition rates. However, time-sharing limits the beamtime available both for timing based instrumentation and experiments, and for those demanding high intensity. Solutions to allow simultaneous operation are therefore critical for the user community. This thesis explores four classes of solutions: Accelerator adaptations, choppers, instrument gating and coincidence techniques. A review of accelerator adaptations, choppers and coincidence techniques is presented which in particular highlights future opportunities for timing based experiments at MAX IV. With regard to gating, this thesis reports the development of an electronic gate for the ARTOF analyser. It is showed how a pulsed electric potential and a system of transmission meshes can be used to simulate single bunch operation and discard electrons which would be unresolvable in the analyser. One paper shows how a detector gate has been implemented to allow use of the instrument in hybrid mode at BESSY storage ring in Berlin. We show that detection efficiency can be increased more than ten times. A second paper discusses the necessary requirements to build a similar gate for the operation mode of the future MAX~IV rings and outlines some initial experimental results.
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- Stråhlman, Christian, et al.
(author)
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Partners or Counterparts?: Student Involvement in Management and Quality Assurance at Lund University
- 2011
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In: EUA Case Studies. - 9789078997252 ; , s. 64-68
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Conference paper (peer-reviewed)abstract
- There is an increasing demand from students and their organisations all over Europe for involvement in quality assurance. Today, this demand is met with a wide international understanding that student involvement is a key factor in quality assurance. Student representatives and organisations are involved in the development and execution of quality assurance processes in many higher education institutions. While involvement is desirable, it puts higher demands on student organisations to act professionally. Sweden has a long tradition of student involvement in higher education. Swedish legislation entitles students to representation in all decision-making and preparatory bodies at universities. At Lund University this has evolved into a student partnership model where student representatives have full insight as equal partners in university management. This has been a successful and appreciated model. This paper discusses how the partnership model has evolved, how it is maintained and how the student voice has changed.
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