Development of C(60) plasma ion source for time-of-flight secondary ion mass spectrometry applications.
Initial data from a multicusp ion source developed for buckminsterfullerene (C(60)) cluster ion production are reported in this article. A C(60)(+) beam current of 425 nA and a C(60)(-) beam current of 200 nA are obtainable in continuous mode. Compared to prior work using electron impact ionization, the multicusp ion source provides at least two orders of magnitude increase in the extractable C(60)(+) beam current. Mass spectra for both positive and negative bismuth cluster ions generated by the multicusp ion source are also included.
Ji
Qing
Q
Lawrence Berkeley National Laboratory, University of California, Berkeley, CA 94720, USA.
Chen
Ye
Y
Ji
Lili
L
Hahto
Sami
S
Leung
Ka-Ngo
KN
Lee
Tae Geol
TG
Moon
Dae Won
DW
D004867:Equipment Design; D019544:Equipment Failure Analysis; D037741:Fullerenes / Q000737:chemistry*; D005740:Gases / Q000737:chemistry; D006361:Heating / Q000295:instrumentation*; D020450:Heavy Ions; D021241:Spectrometry, Mass, Electrospray Ionization / Q000295:instrumentation*; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization / Q000295:instrumentation*
D037741:Fullerenes; D005740:Gases; C069837:fullerene C60