Abstract
A novel coil system is described that enables the magnetic angle-changing technique to be used at higher energies. The system consists of coils of wire that are combined with specially shaped iron cores in such a way as to preserve localization of the magnetic field. The system extends the operational energy range of previous systems consisting of solenoids alone by a factor of 25. Measurements of the electron impact excitation of the n = 2 states of helium are presented as an example of the use of the device.
Original language | English |
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Pages (from-to) | 3323-3325 |
Number of pages | 3 |
Journal | Review of Scientific Instruments |
Volume | 71 |
Issue number | 9 |
Early online date | 30 Aug 2000 |
DOIs | |
Publication status | Published - Sep 2000 |
Externally published | Yes |