Journalartikel

Jahr der Veröffentlichung: 2013

Zeitschrift: European Physical Society Letters

Bandnummer: 104

Heftnummer: 4

ISSN: 0295-5075

eISSN: 1286-4854

DOI Link: https://doi.org/10.1209/0295-5075/104/42001

Verlag: IOP Publishing

Abstract: 
A cryogenic stopping cell (CSC) has been commissioned with U-238 projectile fragments produced at 1000 MeV/u. The spatial isotopic separation in flight was performed with the FRS applying a monoenergetic degrader. For the first time, a stopping cell was operated with exotic nuclei at cryogenic temperatures (70 to 100K). A helium stopping gas density of up to 0.05mg/cm(3) was used, about two times higher than reached before for a stopping cell with RF ion repelling structures. An overall efficiency of up to 15%, a combined ion survival and extraction efficiency of about 50%, and extraction times of 24ms were achieved for heavy a-decaying uranium fragments. Mass spectrometry with a multiple-reflection time-of-flight mass spectrometer has demonstrated the excellent cleanliness of the CSC. This setup has opened a new field for the spectroscopy of short-lived nuclei. Copyright (C) EPLA, 2013

Harvard-Zitierstil: Purushothaman, S., Reiter, M., Haettner, E., Dendooven, P., Dickel, T., Geissel, H., et al. (2013) First experimental results of a cryogenic stopping cell with short-lived, heavy uranium fragments produced at 1000 MeV/u, European Physical Society Letters, 104(4), Article 42001. https://doi.org/10.1209/0295-5075/104/42001

APA-Zitierstil: Purushothaman, S., Reiter, M., Haettner, E., Dendooven, P., Dickel, T., Geissel, H., Ebert, J., Jesch, C., Plass, W., Ranjan, M., Weick, H., Amjad, F., Ayet, S., Diwisch, M., Estrade, A., Farinon, F., Greiner, F., Kalantar-Nayestanaki, N., Knoebel, R., ...Yavor, M. (2013). First experimental results of a cryogenic stopping cell with short-lived, heavy uranium fragments produced at 1000 MeV/u. European Physical Society Letters. 104(4), Article 42001. https://doi.org/10.1209/0295-5075/104/42001