First experimental results of a cryogenic stopping cell with short-lived, heavy uranium fragments produced at 1000 MeV/u

S. Purushothaman; M. P. Reiter; E. Haettner; P. Dendooven; T. Dickel; H. Geissel; J. Ebert; C. Jesch; W. R. Plass; M. Ranjan; H. Weick; F. Amjad; S. Ayet; M. Diwisch; A. Estrade; F. Farinon; F. Greiner; N. Kalantar-Nayestanaki; R. Knöbel; J. Kurcewicz; J. Lang; I. D. Moore; I. Mukha; C. Nociforo; M. Petrick; M. Pfützner; S. Pietri; A. Prochazka; A. K. Rink; S. Rinta-Antila; C. Scheidenberger; M. Takechi; Y. K. Tanaka; J. S. Winfield; M. I. Yavor

doi:10.1209/0295-5075/104/42001

First experimental results of a cryogenic stopping cell with short-lived, heavy uranium fragments produced at 1000 MeV/u

S. Purushothaman, M. P. Reiter, E. Haettner, P. Dendooven, T. Dickel, H. Geissel, J. Ebert, C. Jesch, W. R. Plass, M. Ranjan, H. Weick, F. Amjad, S. Ayet, M. Diwisch, A. Estrade, F. Farinon, F. Greiner, N. Kalantar-Nayestanaki, R. Knöbel, J. KurcewiczJ. Lang, I. D. Moore, I. Mukha, C. Nociforo, M. Petrick, M. Pfützner, S. Pietri, A. Prochazka, A. K. Rink, S. Rinta-Antila, C. Scheidenberger, M. Takechi, Y. K. Tanaka, J. S. Winfield, M. I. Yavor

Physics

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Abstract

A cryogenic stopping cell (CSC) has been commissioned with ²³⁸U 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 100 K). A helium stopping gas density of up to 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 24 ms were achieved for heavy -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.

Original language	English
Article number	42001
Journal	EPL
Volume	104
Issue number	4
DOIs	https://doi.org/10.1209/0295-5075/104/42001
State	Published - Nov 2013

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

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title = "First experimental results of a cryogenic stopping cell with short-lived, heavy uranium fragments produced at 1000 MeV/u",

abstract = "A cryogenic stopping cell (CSC) has been commissioned with 238U 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 100 K). A helium stopping gas density of up to 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 24 ms were achieved for heavy -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.",

author = "S. Purushothaman and Reiter, {M. P.} and E. Haettner and P. Dendooven and T. Dickel and H. Geissel and J. Ebert and C. Jesch and Plass, {W. R.} and M. Ranjan and H. Weick and F. Amjad and S. Ayet and M. Diwisch and A. Estrade and F. Farinon and F. Greiner and N. Kalantar-Nayestanaki and R. Kn{\"o}bel and J. Kurcewicz and J. Lang and Moore, {I. D.} and I. Mukha and C. Nociforo and M. Petrick and M. Pf{\"u}tzner and S. Pietri and A. Prochazka and Rink, {A. K.} and S. Rinta-Antila and C. Scheidenberger and M. Takechi and Tanaka, {Y. K.} and Winfield, {J. S.} and Yavor, {M. I.}",

year = "2013",

month = nov,

doi = "10.1209/0295-5075/104/42001",

language = "English",

volume = "104",

journal = "EPL",

issn = "0295-5075",

number = "4",

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Purushothaman, S, Reiter, MP, Haettner, E, Dendooven, P, Dickel, T, Geissel, H, Ebert, J, Jesch, C, Plass, WR, Ranjan, M, Weick, H, Amjad, F, Ayet, S, Diwisch, M, Estrade, A, Farinon, F, Greiner, F, Kalantar-Nayestanaki, N, Knöbel, R, Kurcewicz, J, Lang, J, Moore, ID, Mukha, I, Nociforo, C, Petrick, M, Pfützner, M, Pietri, S, Prochazka, A, Rink, AK, Rinta-Antila, S, Scheidenberger, C, Takechi, M, Tanaka, YK, Winfield, JS & Yavor, MI 2013, 'First experimental results of a cryogenic stopping cell with short-lived, heavy uranium fragments produced at 1000 MeV/u', EPL, vol. 104, no. 4, 42001. https://doi.org/10.1209/0295-5075/104/42001

TY - JOUR

T1 - First experimental results of a cryogenic stopping cell with short-lived, heavy uranium fragments produced at 1000 MeV/u

AU - Purushothaman, S.

AU - Reiter, M. P.

AU - Haettner, E.

AU - Dendooven, P.

AU - Dickel, T.

AU - Geissel, H.

AU - Ebert, J.

AU - Jesch, C.

AU - Plass, W. R.

AU - Ranjan, M.

AU - Weick, H.

AU - Amjad, F.

AU - Ayet, S.

AU - Diwisch, M.

AU - Estrade, A.

AU - Farinon, F.

AU - Greiner, F.

AU - Kalantar-Nayestanaki, N.

AU - Knöbel, R.

AU - Kurcewicz, J.

AU - Lang, J.

AU - Moore, I. D.

AU - Mukha, I.

AU - Nociforo, C.

AU - Petrick, M.

AU - Pfützner, M.

AU - Pietri, S.

AU - Prochazka, A.

AU - Rink, A. K.

AU - Rinta-Antila, S.

AU - Scheidenberger, C.

AU - Takechi, M.

AU - Tanaka, Y. K.

AU - Winfield, J. S.

AU - Yavor, M. I.

PY - 2013/11

Y1 - 2013/11

N2 - A cryogenic stopping cell (CSC) has been commissioned with 238U 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 100 K). A helium stopping gas density of up to 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 24 ms were achieved for heavy -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.

AB - A cryogenic stopping cell (CSC) has been commissioned with 238U 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 100 K). A helium stopping gas density of up to 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 24 ms were achieved for heavy -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.

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JF - EPL

SN - 0295-5075

IS - 4

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ER -

First experimental results of a cryogenic stopping cell with short-lived, heavy uranium fragments produced at 1000 MeV/u

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