退火对He注入及随后208 Pb27+辐照的Al2O3单晶PL谱的影响
퇴화대He주입급수후208 Pb27+복조적Al2O3단정PL보적영향
Effects of annealing on the photoluminescence of He ion implanted sapphire after 230-MeV Pb ion irradiation
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