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As a continuous search for the “missing”α-decay of 239Cm, several irradiation experiments were done in July, 2005. The whole experimental procedure was similar as last year. To increase the yield of expected isotopes with intensive 12C beam, all of the irradiation have been done at night, and typical beam intensities varied between 0. 4-0.6 particleμA. Each irradiation lasted 4-6 h. The procedure of preparing a
As a continuous search for the “missing ” α-decay of 239Cm, several irradiation experiments were done in July, 2005. To increase the yield of the expected isotopes with intensive 12C beam, all of the irradiation have been done at night, and typical beam intensities varied between 0. 4-0.6 particleμA. Each irradiation lasted 4-6 h. The procedure of preparing a