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Shahid Muhammad Kim Kwangsoo Kim Guinyun Naik Haladhara Zaman Muhammad Lee Young-Ouk Cho Young-Sik 《Journal of Radioanalytical and Nuclear Chemistry》2017,311(3):1971-1981
Journal of Radioanalytical and Nuclear Chemistry - We measured excitation functions for the production of the 108m,108g,109g,110m,110g,111gIn, the 109g,111mCd, and the 105g,106m,110m,111gAg in... 相似文献
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Sungchul Yang Kwangsoo Kim Muhammad Zaman Haradhara Naik Guinyun Kim Tae-Yung Song Young-Ouk Lee Sung Gyun Shin Young-Uk Key Moo-Hyun Cho 《Journal of Radioanalytical and Nuclear Chemistry》2014,300(1):367-377
The independent isomeric yield ratios (IR) for the 139m,gNd and the 141m,gNd isomeric pairs produced from the natNd(γ, xn) reactions were determined by the activation and the off-line γ-ray spectrometric technique at the end-point bremsstrahlung energies of 45, 50, 55, and 60 MeV in the 100 MeV electron Linac of the Pohang accelerator laboratory, Korea. The present IR for the 141m,gNd isomeric pair were compared with those from the literature measured by the bremsstrahlung and the neutron to examine the role of excitation energy. The obtained IR for the 139m,gNd and the 141m,gNd isomeric pairs from natNd(γ, xn) reactions were compared with those from the 141Pr(p, x), the natCe(3He, x), and the 136Ce(α, n) reactions to examine the role of parameters in entrance channel i.e. excitation energy and the effect of the input angular momentum. The present IR of 139m,gNd and 141m,gNd were compared with those calculated by using the TALYS 1.4 code as well as those from the literature data of above mentioned reactions. 相似文献
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Sung-Chul Yang Guinyun Kim M. Zaman Kwangsoo Kim Tae-Yung Song Young-Ouk Lee Sung Gyun Shin Young-Uk Key Moo-Hyun Cho Duc Khue Pham Van Do Nguyen Haladhara Naik Tae-Ik Ro 《Journal of Radioanalytical and Nuclear Chemistry》2014,302(1):467-476
The independent isomeric yield ratios of 148Pm from the natSm(γ, x) reaction at the end-point bremsstrahlung energy of 45–64 MeV have been determined using an off-line γ-ray spectrometric technique at the 100 MeV electron linac of Pohang accelerator laboratory, Pohang, Korea. We also have determined the isomeric yield ratios of 148Pm from the natNd(p,xn) reactions in the proton energy of 5.08–44.72 MeV by a stacked-foil activation and an off-line γ-ray spectrometric techniques at the MC-50 cyclotron of the Korean Institute of Radiological and Medical Sciences, Korea. The determined isomeric yield ratios of 148Pm were compared with literature data and theoretical values estimated by the TALYS 1.4. The present data along with the similar data from literature at other energies shows that the isomeric yield ratio of 148Pm increases with the excitation energy both in the natSm(γ, x) and the natNd(p, xn) reactions. The isomeric yield ratios of 148Pm from the natNd(p, xn) reactions are always higher than those from the natSm(γ, x) reactions at the same excitation energy, which indicate the role of input angular momentum besides excitation energy. 相似文献
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Roland Beyer Arnd R. Junghans Peter Schillebeeckx Ivan Sirakov Tae-Yung Song Daniel Bemmerer Roberto Capote Anna Ferrari Andreas Hartmann Ronald Hannaske Jan Heyse Hyeon Il Kim Jong Woon Kim Toni Kögler Cheol Woo Lee Young-Ouk Lee Ralph Massarczyk Stefan E. Müller Tobias P. Reinhardt Marko Röder Konrad Schmidt Ronald Schwengner Tamás Szücs Marcell P. Takács Andreas Wagner Louis Wagner Sung-Chul Yang 《The European Physical Journal A - Hadrons and Nuclei》2018,54(5):81
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To reduce the crosstalk of the polymer waveguide optical switches, waveguide attenuators are integrated with the switch on the same substrate. The switch and attenuator shares a single connected electrode which is controlled by a single current source. Due to the simple structure of the integrated attenuator, the device length is reduced to 10 mm so as to provide low insertion loss of 0.8 and 1.1 dB for 1300 and 1550 nm, respectively. Further radiation of the remained optical signal on the switch-off branch is induced by the integrated attenuator so that the switching crosstalk is reduced to −70 dB with an applied electrical power of 200 mW. The low crosstalk is maintained for the environmental temperature range of −10 to 55 °C. 相似文献
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