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 |
|---|---|
| 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 - Sept 2000 |
| Externally published | Yes |