Time-of-flight mass measurements of exotic nuclei

被引：23

作者：

Matos, M. ^{[1
,2
]}

Estrade, A. ^{[1
,3
,4
,5
]}

Schatz, H. ^{[1
,3
]}

Bazin, D. ^{[1
]}

Famiano, M. ^{[6
]}

Gade, A. ^{[1
]}

George, S. ^{[1
]}

Lynch, W. G. ^{[1
,3
]}

Meisel, Z. ^{[1
,3
]}

Portillo, M. ^{[1
]}

Rogers, A. ^{[1
,3
]}

Shapira, D. ^{[7
]}

Stolz, A. ^{[1
]}

Wallace, M. ^{[8
]}

Yurkon, J. ^{[1
]}

机构：

[1] Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA

[2] Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USA

[3] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA

[4] St Marys Univ, Halifax, NS B3H 3C3, Canada

[5] GSI Helmoltzzentrum Schwerionenforsch, Darmstadt, Germany

[6] Western Michigan Univ, Kalamazoo, MI 49008 USA

[7] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA

[8] Los Alamos Natl Lab, Los Alamos, NM USA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2012年 / 696卷

基金：

美国国家科学基金会;

关键词：

Binding energies and masses; Fast radioactive beam techniques; Exotic nuclei; NEUTRON-RICH ISOTOPES; SHELL CLOSURE; DETECTOR; RESOLUTION;

D O I：

10.1016/j.nima.2012.08.104

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Atomic masses play an important role in nuclear physics and astrophysics. The need of experimental mass values for unstable nuclides has triggered the development of a wide range of mass measurement techniques, with devices installed at many laboratories around the world. We have implemented a time-of-flight-magnetic-rigidity (TOF-B rho) technique at the National Superconducting Cyclotron Laboratory (NSCL) that includes a position measurement for magnetic rigidity corrections and uses the A1900 separator and the S800 spectrograph. We performed a successful first experiment measuring masses of neutron-rich isotopes in the region of Z similar to 20-30, important for calculations of processes occurring in the crust of accreting neutron stars. The masses of 16 nuclei were determined, for V-61, Cr-63, Mn-66, and Ni-74 for the first time, with atomic mass excesses of -30.510(890) MeV, 35.280(650) MeV, -36.900(790) MeV, and -49.210(990) MeV, respectively. The mass resolution achieved was 1.8 x 10(-4). (C) 2012 Published by Elsevier B.V.

引用

页码：171 / 179

页数：9

共 50 条

[1] TIME-OF-FLIGHT ISOCHRONOUS SPECTROMETER FOR DIRECT MASS MEASUREMENTS OF EXOTIC LIGHT-NUCLEI
BUTLER, GW
VIEIRA, DJ
WOUTERS, JM
WOLLNIK, H
VAZIRI, K
WOHN, FK
BRENNER, DS
[J]. ACS SYMPOSIUM SERIES, 1986, 324 : 459 - 463
[2] OPTICAL DESIGN OF THE TOFI (TIME-OF-FLIGHT ISOCHRONOUS) SPECTROMETER FOR MASS MEASUREMENTS OF EXOTIC NUCLEI
WOUTERS, JM
VIEIRA, DJ
WOLLNIK, H
ENGE, HA
KOWALSKI, S
BROWN, KL
[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1985, 240 (01): : 77 - 90
[3] THE TIME-OF-FLIGHT ISOCHRONOUS (TOFI) SPECTROMETER FOR DIRECT MASS MEASUREMENTS OF EXOTIC LIGHT-NUCLEI
WOUTERS, JM
VIEIRA, DJ
WOLLNIK, H
BUTLER, GW
KRAUS, RH
VAZIRI, K
[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1987, 26 (1-3): : 286 - 293
[4] Time-of-flight mass spectrometry of very exotic systems
Meisel, Z.
George, S.
[J]. INTERNATIONAL JOURNAL OF MASS SPECTROMETRY, 2013, 349 : 145 - 150
[5] History of mass measurements in time-of-flight mass analyzers
Wollnik, Hermann
[J]. INTERNATIONAL JOURNAL OF MASS SPECTROMETRY, 2013, 349 : 38 - 46
[6] MASS MEASUREMENTS WITH A MAGNETIC TIME-OF-FLIGHT MASS SPECTROMETER
HAYS, EE
RICHARDS, PI
GOUDSMIT, SA
[J]. PHYSICAL REVIEW, 1951, 84 (04): : 824 - 829
[7] Study of Cooling and Storage Properties of a Gas-Filled Linear Paul Trap Coupled to a Time-of-Flight Mass Spectrometer for Mass Measurements of Exotic Nuclei
M. Weidenmüller
S. A. Elisseev
W. R. Plass
U. Czok
M. Winkler
H. Wollnik
H. Geissel
C. Scheidenberger
H. Weick
Z. Zhou
A. F. Dodonov
V. Kozlovski
[J]. Hyperfine Interactions, 2003, 146-147 : 219 - 224
[8] Study of cooling and storage properties of a gas-filled linear Paul trap coupled to a time-of-flight mass spectrometer for mass measurements of exotic nuclei
Weidenmüller, M
Elisseev, SA
Plass, WR
Czok, U
Winkler, M
Wollnik, H
Geissel, H
Scheidenberger, C
Weick, H
Zhou, Z
Dodonov, AF
Kozlovski, V
[J]. HYPERFINE INTERACTIONS, 2003, 146 (1-4): : 219 - 224
[9] A TIME-OF-FLIGHT SPECTROMETER FOR MASS MEASUREMENTS AT LAMPF
VIEIRA, DJ
BUTLER, GW
CLARK, JL
WOUTERS, JM
POSKANZER, AM
REMSBERG, LP
WOLLNIK, H
[J]. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1982, 183 (MAR): : 18 - NUCL
[10] A multi-reflection time-of-flight mass spectrometer for mass measurements of short-lived nuclei
Ishida, Y
Wada, M
Wollnik, H
[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2005, 241 (1-4): : 983 - 985

← 1 2 3 4 5 →