TY - JOUR
T1 - Optimization of a compact multicusp He+ ion source for double-charge-exchanged He- beam
AU - Shinto, K.
AU - Sugawara, H.
AU - Takenaga, M.
AU - Takeuchi, S.
AU - Tanaka, N.
AU - Okamoto, A.
AU - Kitajima, S.
AU - Sasao, M.
AU - Nishiura, M.
AU - Wada, M.
N1 - Funding Information:
This work was supported by a Grant-in-Aid from the Ministry of Education, Culture, Sports, Science, and Technology of Japan.
PY - 2006/3
Y1 - 2006/3
N2 - Preliminary test bench results to study the beam quality extracted from a compact multicusp He+ ion source for He- beam production are reported. The bench is a part of the beam diagnostic system equipped with energy analyzers, emittance meters, focusing beam optics, an alkali-metal charge-exchange cell, a neutral particle energy analyzer, a double focusing magnetic momentum analyzer, a postaccelerator, and a drift tube. Utilizing the front end of the bench, the transverse emittance and the energy distribution function of a He+ beam extracted from a multi-line-cusp magnetic-field ion source 8 cm in diameter and 9 cm in length were measured. The results indicated that improvements in both formation of the plasma meniscus and reinforcement of pumping in the extraction region are necessary to produce a higher brightness He+ beam.
AB - Preliminary test bench results to study the beam quality extracted from a compact multicusp He+ ion source for He- beam production are reported. The bench is a part of the beam diagnostic system equipped with energy analyzers, emittance meters, focusing beam optics, an alkali-metal charge-exchange cell, a neutral particle energy analyzer, a double focusing magnetic momentum analyzer, a postaccelerator, and a drift tube. Utilizing the front end of the bench, the transverse emittance and the energy distribution function of a He+ beam extracted from a multi-line-cusp magnetic-field ion source 8 cm in diameter and 9 cm in length were measured. The results indicated that improvements in both formation of the plasma meniscus and reinforcement of pumping in the extraction region are necessary to produce a higher brightness He+ beam.
UR - http://www.scopus.com/inward/record.url?scp=33645834561&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33645834561&partnerID=8YFLogxK
U2 - 10.1063/1.2165775
DO - 10.1063/1.2165775
M3 - Article
AN - SCOPUS:33645834561
SN - 0034-6748
VL - 77
JO - Review of Scientific Instruments
JF - Review of Scientific Instruments
IS - 3
M1 - 03B512
ER -