The SPEDE spectrometer

P. Papadakis; D. M. Cox; G. G. O’Neill; M. J. G. Borge; P. A. Butler; L. P. Gaffney; P. T. Greenlees; R. -D. Herzberg; A. Illana; D. T. Joss; J. Konki; T. Kröll; J. Ojala; R. D. Page; P. Rahkila; K. Ranttila; J. Thornhill; J. Tuunanen; P. Van Duppen; N. Warr; J. Pakarinen

doi:10.1140/epja/i2018-12474-9

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2024 Impact factor 2.8

Hadrons and Nuclei

Eur. Phys. J. A (2018) 54: 42
https://doi.org/10.1140/epja/i2018-12474-9

Special Article - New Tools and Techniques

The SPEDE spectrometer

P. Papadakis¹^,2, D. M. Cox¹^,2, G. G. O’Neill³, M. J. G. Borge⁴, P. A. Butler³, L. P. Gaffney⁴, P. T. Greenlees¹^,2, R. -D. Herzberg³, A. Illana⁵, D. T. Joss³, J. Konki¹^,2, T. Kröll⁶, J. Ojala¹^,2, R. D. Page³, P. Rahkila¹^,2, K. Ranttila¹, J. Thornhill³, J. Tuunanen¹, P. Van Duppen⁵, N. Warr⁷ and J. Pakarinen¹^,2^*

¹ University of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014, Jyvaskyla, Finland
² Helsinki Institute of Physics, P.O. Box 64, FI-00014, Helsinki, Finland
³ Oliver Lodge Laboratory, University of Liverpool, L69 7ZE, Liverpool, UK
⁴ EP Department, ISOLDE, CERN, CH-1211, Geneva, Switzerland
⁵ Instituut voor Kern-en Stralingsfysica, KU Leuven, B-3001, Leuven, Belgium
⁶ Institut für Kernphysik, Technische Universität Darmstadt, D-64289, Darmstadt, Germany
⁷ Institut für Kernphysik, Universität zu Köln, Zülpicher Straße 77, D-50937, Köln, Germany

^* e-mail: janne.pakarinen@jyu.fi

Received: 1 September 2017
Accepted: 4 February 2018
Published online: 12 March 2018

Abstract

The electron spectrometer, SPEDE, has been developed and will be employed in conjunction with the Miniball spectrometer at the HIE-ISOLDE facility, CERN. SPEDE allows for direct measurement of internal conversion electrons emitted in-flight, without employing magnetic fields to transport or momentum filter the electrons. Together with the Miniball spectrometer, it enables simultaneous observation of $\gamma$ rays and conversion electrons in Coulomb excitation experiments using radioactive ion beams.