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Time-of-flight measurements in atomic beam devices using adiabatic high frequency transitions and sextupole magnets
- Publication Year :
- 2002
-
Abstract
- Atomic beam devices are frequently equipped with sextupole magnets to focus the beam or to act as spin filters in combination with RF-transitions for manipulating the hyperfine population within the atomic beam. A useful tool for the analysis of sextupole systems, the application of time-of-flight (TOF) measurements is presented. TOF measurements are enabled without mechanical beam chopper by utilizing adiabatic radio frequency transitions to select atoms within a certain time interval. This method is especially interesting for the use in atomic beam devices that are already equipped with RF-transitions and sextupole magnets and where space limitations or the required quality of the vacuum do not allow the installation of a mechanical chopper. The measurements presented here were performed with the atomic beam polarimeter of the HERMES polarized deuterium target and the results have been used to optimize the sextupole system of the polarimeter.
- Subjects :
- Nuclear and High Energy Physics
Physics::Instrumentation and Detectors
Population
07.60.F
Chopper
Hyperfine interactions
Optics
07.77
Physics::Atomic Physics
education
Polarized targets
Polarimeters
Detection of atomic beams
Spin-polarized hydrogen
29.25.P
67.65
31.30.G
Instrumentation
Hyperfine structure
Physics
education.field_of_study
business.industry
Polarimeter
Time of flight
Magnet
Physics::Accelerator Physics
Radio frequency
business
Beam (structure)
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....40bac23a28332bbbb4f4a8f47d21a30f