Abstract
Aberrations are inevitable when the charged particle beams are extracted, accelerated, transmitted, and focused with electrostatic and magnetic fields. In this study, we investigate the aberration of a negative ion accelerator for a neutral beam injector theoretically, especially the spherical aberration caused by the negative ion beam expansion due to the space charge effect. The negative ion current density profiles with the spherical aberration are compared with those without the spherical aberration. It is found that the negative ion current density profiles in a log scale are tailed due to the spherical aberration.
| Original language | English |
|---|---|
| Article number | 02A724 |
| Journal | Review of Scientific Instruments |
| Volume | 81 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2010 |
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ASJC Scopus subject areas
- Instrumentation
Cite this
Aberration of a negative ion beam caused by space charge effect. / Miyamoto, K.; Wada, S.; Hatayama, Akiyoshi.
In: Review of Scientific Instruments, Vol. 81, No. 2, 02A724, 2010.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Aberration of a negative ion beam caused by space charge effect
AU - Miyamoto, K.
AU - Wada, S.
AU - Hatayama, Akiyoshi
PY - 2010
Y1 - 2010
N2 - Aberrations are inevitable when the charged particle beams are extracted, accelerated, transmitted, and focused with electrostatic and magnetic fields. In this study, we investigate the aberration of a negative ion accelerator for a neutral beam injector theoretically, especially the spherical aberration caused by the negative ion beam expansion due to the space charge effect. The negative ion current density profiles with the spherical aberration are compared with those without the spherical aberration. It is found that the negative ion current density profiles in a log scale are tailed due to the spherical aberration.
AB - Aberrations are inevitable when the charged particle beams are extracted, accelerated, transmitted, and focused with electrostatic and magnetic fields. In this study, we investigate the aberration of a negative ion accelerator for a neutral beam injector theoretically, especially the spherical aberration caused by the negative ion beam expansion due to the space charge effect. The negative ion current density profiles with the spherical aberration are compared with those without the spherical aberration. It is found that the negative ion current density profiles in a log scale are tailed due to the spherical aberration.
UR - http://www.scopus.com/inward/record.url?scp=77949300422&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77949300422&partnerID=8YFLogxK
U2 - 10.1063/1.3298842
DO - 10.1063/1.3298842
M3 - Article
C2 - 20192393
AN - SCOPUS:77949300422
VL - 81
JO - Review of Scientific Instruments
JF - Review of Scientific Instruments
SN - 0034-6748
IS - 2
M1 - 02A724
ER -