Progress on the computer simulation of LANSCE's production H-ion source
Conference
·
OSTI ID:977689
- Edwin
- Kevin J.
1D and 2D particle-in-cell (PIC) codes have been developed to study the negative hydrogen (H{sup -}) ion sources used at the LANSCE accelerator. These ion sources operate through a surface conversion process, generating an H{sup -} beam at a negatively biased, cesiated electrode immersed in a hydrogen plasma. Preliminary results indicate that some modifications of the original design may improve the ion source efficiency. The simulations indicate that the propagating beam is highly divergent due to a larger than expected sheath region around the cesiated electrode and due to the defocusing edge fields at the converter.
- Research Organization:
- Los Alamos National Laboratory
- Sponsoring Organization:
- DOE
- OSTI ID:
- 977689
- Report Number(s):
- LA-UR-04-4117
- Country of Publication:
- United States
- Language:
- English
Similar Records
Transients on arc and Convertor Currents in the Multi-Cusp Cesiated Surface Conversion H-Ion Source at Lansce
Upgrading the LANSCE accelerator with a SNS RF-driven H− ion source
Incremental performance improvements for a surface-convergency H- ion source
Journal Article
·
Fri May 31 20:00:00 EDT 2019
· IEEE Pulsed Power Conference
·
OSTI ID:1623424
Upgrading the LANSCE accelerator with a SNS RF-driven H− ion source
Journal Article
·
Tue Jan 21 19:00:00 EST 2020
· Review of Scientific Instruments
·
OSTI ID:1593178
Incremental performance improvements for a surface-convergency H- ion source
Conference
·
Tue Nov 09 23:00:00 EST 2010
·
OSTI ID:1040833