University of Lodz an electron spectrometer--a new conversion-electron spectrometer for "in-beam" measurements

J Perkowski; J Andrzejewski; Ł Janiak; J Samorajczyk; T Abraham; Ch Droste; E Grodner; K Hadyńska-Klęk; M Kisieliński; M Komorowska; M Kowalczyk; J Kownacki; J Mierzejewski; P Napiorkowski; A Korman; J Srebrny; A Stolarz; M Zielińska

doi:10.1063/1.4870899

University of Lodz an electron spectrometer--a new conversion-electron spectrometer for "in-beam" measurements

Rev Sci Instrum. 2014 Apr;85(4):043303. doi: 10.1063/1.4870899.

Authors

J Perkowski¹, J Andrzejewski¹, Ł Janiak¹, J Samorajczyk¹, T Abraham², Ch Droste³, E Grodner³, K Hadyńska-Klęk², M Kisieliński², M Komorowska², M Kowalczyk², J Kownacki², J Mierzejewski², P Napiorkowski², A Korman⁴, J Srebrny², A Stolarz², M Zielińska²

Affiliations

¹ Faculty of Physics and Applied Computer Science, University of Lodz, Lodz 90-236, Poland.
² Heavy Ion Laboratory, University of Warsaw, Pasteura 5A, 02-093 Warsaw, Poland.
³ Faculty of Physics, University of Warsaw, Warsaw 00-681, Poland.
⁴ The National Centre for Nuclear Research, Andrzeja Sołtana 7, 05-400 Otwock, Świerk, Poland.

PMID: 24784598
DOI: 10.1063/1.4870899

Abstract

The designed and constructed at the University of Lodz an electron spectrometer is devoted to "in-beam" measurements. The apparatus is characterized by high efficiency up to 9%, good energy resolution (FWHM = 5 keV at 482 keV) and, what is very important good suppression of delta electrons, positrons, and photons emitted by the targets. This achievement was obtained using a combination of magnetic field in two different layouts: perpendicular and parallel to the axis of the spectrometer being orthogonal to the beamline. The conversion-electron spectrometer coupled to the EAGLE array was successfully tested in an "in-beam" measurement.