Experiences with the narrow gap undulator at max-lab

Åke Andersson, Sverker Werin (Corresponding Author), Tor Meinander, Arnaldo Naves de Brito, Seppo Aksela

Research output: Contribution to journalArticleScientificpeer-review

16 Citations (Scopus)


An undulator with short poles (period 24 mm) and extremely narrow gap (magnet gap 7.7 mm) using a squeezable vacuum chamber has been installed and is in operation at the MAX-lab 550 MeV storage ring. The device operates with a vacuum chamber aperture down to 6.2 mm. The behaviour of the storage ring concerning lifetime, emittance, tune shift and closed orbit is well described by conventional models. We present here the design of the device, the influence on the storage ring and the spectral characteristics, as well as comparison with expected theoretical results and an overview of the activities at the beam line.
Original languageEnglish
Pages (from-to)586-591
JournalNuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number2-3
Publication statusPublished - 1995
MoE publication typeNot Eligible


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