PENNING-TRAP MASS MEASUREMENTS OF NEUTRON-DEFICIENT RB AND SR ISOTOPES

被引：56

作者：

OTTO, T

BOLLEN, G

SAVARD, G

SCHWEIKHARD, L

STOLZENBERG, H

AUDI, G

MOORE, RB

ROULEAU, G

SZERYPO, J

PATYK, Z

机构：

[1] CSNSM,IN2P3,RENE BERNAS LAB,CNRS,F-91405 ORSAY,FRANCE

[2] MCGILL UNIV,FOSTER RADIAT LAB,MONTREAL H3A 2B2,PQ,CANADA

[3] WARSAW UNIV,INST EXPTL PHYS,PL-00681 WARSAW,POLAND

[4] SOLTAN INST NUCL STUDIES,PL-00681 WARSAW,POLAND

来源：

NUCLEAR PHYSICS A | 1994年 / 567卷 / 02期

基金：

加拿大自然科学与工程研究理事会;

关键词：

RB-75; RB-76; RB-77; RB-78; RB-79; RB-80; RB-81; RB-82; RB-83; RB-84; RB-85; RB-86; RB-87; SR-78; SR-79; SR-80; SR-81; SR-82; SR-83; MEASURED MASSES; PENNING-TRAP MASS SPECTROMETER (ONLINE); LEAST-SQUARES ADJUSTMENT OF DATA; MACROSCOPIC/MICROSCOPIC MASS CALCULATIONS;

D O I：

10.1016/0375-9474(94)90149-X

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The Penning-trap mass spectrometer ISOLTRAP installed at the on-line mass separator ISOLDE 2 at CERN has been used for mass determination of Rb-75-87 and Sr-78-83,Sr-87. Ions are captured in a Penning trap and their cyclotron frequency Omega(c) = (q/m)B in the trapping field B is measured. Ratios of these frequencies lead to the determination of the atomic mass of these isotopes. A resolving power of typically m/Delta m approximate to 10(6) and an accuracy of delta m = 10 keV is obtained. The mass of Sr-78 is measured for the first time and, in most cases, the mass values of the other isotopes are significantly improved. The experimental masses are compared with theoretical predictions.

引用

页码：281 / 302

页数：22

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