A new experimental approach for isochronous mass measurements of short-lived exotic nuclei with the FRS-ESR facility

H. Geissel; R. Knöbel; Yu A. Litvinov; B. Sun; K. Beckert; P. Beller; F. Bosch; D. Boutin; C. Brandau; L. Chen; B. Fabian; M. Hausmann; C. Kozhuharov; J. Kurcewicz; S. A. Litvinov; M. Mazzocco; F. Montes; G. Münzenberg; A. Musumarra; C. Nociforo; F. Nolden; W. R. Plaß; C. Scheidenberger; M. Steck; H. Weick; M. Winkler

doi:10.1007/s10751-007-9541-4

A new experimental approach for isochronous mass measurements of short-lived exotic nuclei with the FRS-ESR facility

H. Geissel^*
, R. Knöbel
, Yu A. Litvinov
, B. Sun
, K. Beckert
, P. Beller
, F. Bosch
, D. Boutin
, C. Brandau
, L. Chen
, B. Fabian
, M. Hausmann
, C. Kozhuharov
, J. Kurcewicz
, S. A. Litvinov
, M. Mazzocco
, F. Montes
, G. Münzenberg
, A. Musumarra
, C. Nociforo

F. Nolden, W. R. Plaß, C. Scheidenberger, M. Steck, H. Weick, M. Winkler

^*Corresponding author for this work

GSI Helmholtz Centre for Heavy Ion Research
Justus Liebig University Giessen
Peking University
Michigan State University
National Institute for Nuclear Physics

Research output: Contribution to journal › Article › peer-review

62 Scopus citations

Abstract

Projectile fragments separated in flight with the FRS have been injected into the storage ring ESR. Operating the ESR in the isochronous mode has enabled high-resolution mass measurements of short-lived isotopes. Already in our pilot experiments the Isochronous Mass Spectrometry (IMS) has provided accurate results for a restricted isotope range in the neighborhood of a selected isotope characterized by the best isochronous condition. In the present experiment this restriction has been overcome by precise external magnetic rigidity determination (1.5•10^-4) at the dispersive midplane of the FRS. In this way the mass resolving power for neutron-rich fission fragments covering a large mass-over-charge ratio in one spectrum has been improved by up to one order of magnitude and the accuracy by more than a factor of two.

Original language	English
Pages (from-to)	49-54
Number of pages	6
Journal	Hyperfine Interactions
Volume	173
Issue number	1-3
DOIs	https://doi.org/10.1007/s10751-007-9541-4
State	Published - Nov 2006
Externally published	Yes

Keywords

Isochronous mode
Masses
Stored fragments

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10.1007/s10751-007-9541-4

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Geissel, H., Knöbel, R., Litvinov, Y. A., Sun, B., Beckert, K., Beller, P., Bosch, F., Boutin, D., Brandau, C., Chen, L., Fabian, B., Hausmann, M., Kozhuharov, C., Kurcewicz, J., Litvinov, S. A., Mazzocco, M., Montes, F., Münzenberg, G., Musumarra, A., ... Winkler, M. (2006). A new experimental approach for isochronous mass measurements of short-lived exotic nuclei with the FRS-ESR facility. Hyperfine Interactions, 173(1-3), 49-54. https://doi.org/10.1007/s10751-007-9541-4

@article{1e745ef2929f4102bfb029f8acdf8527,

title = "A new experimental approach for isochronous mass measurements of short-lived exotic nuclei with the FRS-ESR facility",

abstract = "Projectile fragments separated in flight with the FRS have been injected into the storage ring ESR. Operating the ESR in the isochronous mode has enabled high-resolution mass measurements of short-lived isotopes. Already in our pilot experiments the Isochronous Mass Spectrometry (IMS) has provided accurate results for a restricted isotope range in the neighborhood of a selected isotope characterized by the best isochronous condition. In the present experiment this restriction has been overcome by precise external magnetic rigidity determination (1.5•10-4) at the dispersive midplane of the FRS. In this way the mass resolving power for neutron-rich fission fragments covering a large mass-over-charge ratio in one spectrum has been improved by up to one order of magnitude and the accuracy by more than a factor of two.",

keywords = "Isochronous mode, Masses, Stored fragments",

author = "H. Geissel and R. Kn{\"o}bel and Litvinov, \{Yu A.\} and B. Sun and K. Beckert and P. Beller and F. Bosch and D. Boutin and C. Brandau and L. Chen and B. Fabian and M. Hausmann and C. Kozhuharov and J. Kurcewicz and Litvinov, \{S. A.\} and M. Mazzocco and F. Montes and G. M{\"u}nzenberg and A. Musumarra and C. Nociforo and F. Nolden and Pla{\ss}, \{W. R.\} and C. Scheidenberger and M. Steck and H. Weick and M. Winkler",

year = "2006",

month = nov,

doi = "10.1007/s10751-007-9541-4",

language = "英语",

volume = "173",

pages = "49--54",

journal = "Hyperfine Interactions",

issn = "0304-3843",

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}

Geissel, H, Knöbel, R, Litvinov, YA, Sun, B, Beckert, K, Beller, P, Bosch, F, Boutin, D, Brandau, C, Chen, L, Fabian, B, Hausmann, M, Kozhuharov, C, Kurcewicz, J, Litvinov, SA, Mazzocco, M, Montes, F, Münzenberg, G, Musumarra, A, Nociforo, C, Nolden, F, Plaß, WR, Scheidenberger, C, Steck, M, Weick, H & Winkler, M 2006, 'A new experimental approach for isochronous mass measurements of short-lived exotic nuclei with the FRS-ESR facility', Hyperfine Interactions, vol. 173, no. 1-3, pp. 49-54. https://doi.org/10.1007/s10751-007-9541-4

TY - JOUR

T1 - A new experimental approach for isochronous mass measurements of short-lived exotic nuclei with the FRS-ESR facility

AU - Geissel, H.

AU - Knöbel, R.

AU - Litvinov, Yu A.

AU - Sun, B.

AU - Beckert, K.

AU - Beller, P.

AU - Bosch, F.

AU - Boutin, D.

AU - Brandau, C.

AU - Chen, L.

AU - Fabian, B.

AU - Hausmann, M.

AU - Kozhuharov, C.

AU - Kurcewicz, J.

AU - Litvinov, S. A.

AU - Mazzocco, M.

AU - Montes, F.

AU - Münzenberg, G.

AU - Musumarra, A.

AU - Nociforo, C.

AU - Nolden, F.

AU - Plaß, W. R.

AU - Scheidenberger, C.

AU - Steck, M.

AU - Weick, H.

AU - Winkler, M.

PY - 2006/11

Y1 - 2006/11

N2 - Projectile fragments separated in flight with the FRS have been injected into the storage ring ESR. Operating the ESR in the isochronous mode has enabled high-resolution mass measurements of short-lived isotopes. Already in our pilot experiments the Isochronous Mass Spectrometry (IMS) has provided accurate results for a restricted isotope range in the neighborhood of a selected isotope characterized by the best isochronous condition. In the present experiment this restriction has been overcome by precise external magnetic rigidity determination (1.5•10-4) at the dispersive midplane of the FRS. In this way the mass resolving power for neutron-rich fission fragments covering a large mass-over-charge ratio in one spectrum has been improved by up to one order of magnitude and the accuracy by more than a factor of two.

AB - Projectile fragments separated in flight with the FRS have been injected into the storage ring ESR. Operating the ESR in the isochronous mode has enabled high-resolution mass measurements of short-lived isotopes. Already in our pilot experiments the Isochronous Mass Spectrometry (IMS) has provided accurate results for a restricted isotope range in the neighborhood of a selected isotope characterized by the best isochronous condition. In the present experiment this restriction has been overcome by precise external magnetic rigidity determination (1.5•10-4) at the dispersive midplane of the FRS. In this way the mass resolving power for neutron-rich fission fragments covering a large mass-over-charge ratio in one spectrum has been improved by up to one order of magnitude and the accuracy by more than a factor of two.

KW - Isochronous mode

KW - Masses

KW - Stored fragments

UR - https://www.scopus.com/pages/publications/34547879326

U2 - 10.1007/s10751-007-9541-4

DO - 10.1007/s10751-007-9541-4

M3 - 文章

AN - SCOPUS:34547879326

SN - 0304-3843

VL - 173

SP - 49

EP - 54

JO - Hyperfine Interactions

JF - Hyperfine Interactions

IS - 1-3

ER -

A new experimental approach for isochronous mass measurements of short-lived exotic nuclei with the FRS-ESR facility

Abstract

Keywords

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