Investigation of the magnetic field fluctuation and implementation of a temperature and pressure stabilization at SHIPTRAP

Penning traps have proven to be powerful tools for the determination of nuclear masses with high accuracy. A crucial parameter for precision mass measurements in Penning traps is the accurate determination of the magnetic-field strength. However, the magnetic field of a superconducting magnet is not...

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Published inNuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Vol. 632; no. 1; pp. 157 - 163
Main Authors Droese, C., Block, M., Dworschak, M., Eliseev, S., Minaya Ramirez, E., Nesterenko, D., Schweikhard, L.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 11.03.2011
Subjects
Magnetic-field stabilization
Penning traps
Pressure stabilization
SHIPTRAP
Temperature stabilization
Penning traps
Magnetic-field stabilization
SHIPTRAP
Pressure stabilization
Temperature stabilization
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Summary:Penning traps have proven to be powerful tools for the determination of nuclear masses with high accuracy. A crucial parameter for precision mass measurements in Penning traps is the accurate determination of the magnetic-field strength. However, the magnetic field of a superconducting magnet is not constant in time, but changes due to intrinsic effects of the solenoid and external perturbations. These effects have been investigated for SHIPTRAP. Furthermore, a stabilization of the temperature in the magnet bore as well as of the pressure in the liquid-helium cryostat has been implemented. Thus, the magnetic-field related uncertainties have been reduced to 7(6)×10 −11/h.
ISSN:0168-9002
1872-9576
DOI:10.1016/j.nima.2010.12.176