In-beam spectroscopy using the JYFL gas-filled magnetic recoil separator RITU

• Published in: Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Beam interactions with materials and atoms, 2003-05, Vol.204 (Complete), p.638-643
• Main Authors: Uusitalo, J., Jones, P., Greenlees, P., Rahkila, P., Leino, M., Andreyev, A.N., Butler, P.A., Enqvist, T., Eskola, K., Grahn, T., Herzberg, R.-D., Hessberger, F., Julin, R., Juutinen, S., Keenan, A., Kettunen, H., Kuusiniemi, P., Leppänen, A-P., Nieminen, P., Page, R., Pakarinen, J., Scholey, C.
• Format: Article
• Language: English
• Subjects: Gas-filled separator; Heavy elements; In-beam spectroscopy; Recoil-decay tagging; Recoil-gating
• ISSN: 0168-583X; 1872-9584
• DOI: 10.1016/S0168-583X(02)02144-4

The techniques of recoil-gating and recoil-decay tagging have been employed at Jyväskylä to perform in-beam γ-ray and electron spectroscopy studies of heavy nuclei. The JUROSPHERE γ-ray array and the SACRED electron spectrometer have been placed at the target position of the JYFL gas-filled recoil separator recoil ion transport unit (RITU). The RITU separator has been used to collect the recoils of interest and separate them from beam particles and fission products. At the focal plane a detector system consisting of time-of-flight and implantation detectors has been used for further event identification. The method and some highlights from the results in the lead region close to the proton drip line and in the transuranium region will be presented and discussed.