TY - JOUR
T1 - Development of a dual-ion beam accelerator connected with a TEM for in situ observation of radiation-induced defects
AU - Suzuki, Kazumichi
AU - Shigenaka, Naoto
AU - Hashimoto, Tsuneyuki
AU - Nishimura, Eiichi
PY - 1987/4/3
Y1 - 1987/4/3
N2 - A dual-ion beam accelerator connected with a TEM has been developed for in situ observation of radiation-induced defects. The system consists of a 400-kV Cockcroft-Walton accelerator, which can accelerate two different kinds of ions alternatively, and a 200-kV TEM equipped with a high-sensitivity TV camera. The ion beam from the accelerator is fed into the TEM by an electrostatic beam transport system which consists of three deflectors, two quadrupole lenses and a 57° static prism. A copper specimen is bombarded with 150-keV Ar ions. A small cascade of < 5 nm in diameter is observed for an Ar-ion current of about 85 nA/cm2. At a higher current of 1 μA/cm2, recombination, growth, overlap, and collective motions of cascades are observed during irradiation. In situ observation of argon bubbles at a grain boundary of copper gives a diameter growth rate of 2.8 × 10-2 nm/s at a dose rate of 5.3 × 1014 Ar+/cm2 s and a temperature of about 500 K.
AB - A dual-ion beam accelerator connected with a TEM has been developed for in situ observation of radiation-induced defects. The system consists of a 400-kV Cockcroft-Walton accelerator, which can accelerate two different kinds of ions alternatively, and a 200-kV TEM equipped with a high-sensitivity TV camera. The ion beam from the accelerator is fed into the TEM by an electrostatic beam transport system which consists of three deflectors, two quadrupole lenses and a 57° static prism. A copper specimen is bombarded with 150-keV Ar ions. A small cascade of < 5 nm in diameter is observed for an Ar-ion current of about 85 nA/cm2. At a higher current of 1 μA/cm2, recombination, growth, overlap, and collective motions of cascades are observed during irradiation. In situ observation of argon bubbles at a grain boundary of copper gives a diameter growth rate of 2.8 × 10-2 nm/s at a dose rate of 5.3 × 1014 Ar+/cm2 s and a temperature of about 500 K.
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U2 - 10.1016/0168-583X(87)90716-6
DO - 10.1016/0168-583X(87)90716-6
M3 - Article
AN - SCOPUS:0022983819
SN - 0168-583X
VL - 24-25
SP - 591
EP - 593
JO - Nuclear Inst. and Methods in Physics Research, B
JF - Nuclear Inst. and Methods in Physics Research, B
IS - PART 1
ER -