TY - JOUR
T1 - Characteristics of a charged-droplet beam generated by vacuum electrospray of an ionic liquid
AU - Fujiwara, Yukio
AU - Saito, Naoaki
AU - Nonaka, Hidehiko
AU - Nakanaga, Taisuke
AU - Ichimura, Shingo
PY - 2011/1/7
Y1 - 2011/1/7
N2 - To develop a cluster ion beam source for secondary ion mass spectrometry (SIMS), beam characteristics of charged droplets electrosprayed in a vacuum were investigated using a room-temperature molten salt (i.e., an ionic liquid). A target current exceeding 200 nA was produced at a capillary voltage of 1.5 kV even with a low flow rate of 0.05 μL/min. Efficiency of beam generation varied with increasing capillary voltage and flow rate. Additionally, m/z values of emitted charged particles were investigated by a time-of-flight technique. In addition to masses and charge numbers, radii of the charged droplets were examined.
AB - To develop a cluster ion beam source for secondary ion mass spectrometry (SIMS), beam characteristics of charged droplets electrosprayed in a vacuum were investigated using a room-temperature molten salt (i.e., an ionic liquid). A target current exceeding 200 nA was produced at a capillary voltage of 1.5 kV even with a low flow rate of 0.05 μL/min. Efficiency of beam generation varied with increasing capillary voltage and flow rate. Additionally, m/z values of emitted charged particles were investigated by a time-of-flight technique. In addition to masses and charge numbers, radii of the charged droplets were examined.
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U2 - 10.1016/j.cplett.2010.11.067
DO - 10.1016/j.cplett.2010.11.067
M3 - Article
AN - SCOPUS:78650825351
SN - 0009-2614
VL - 501
SP - 335
EP - 339
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 4-6
ER -