Zobrazeno 1 - 10
of 57
pro vyhledávání: '"Yu-Seok Kim"'
Publikováno v:
Science and Technology of Nuclear Installations, Vol 2016 (2016)
Particle-induced X-ray emission is used for determining the elemental composition of materials. This method uses low-energy protons (of several MeV), which can be obtained from high-energy (of tens MeV) accelerators. Instead of manufacturing an accel
Externí odkaz:
https://doaj.org/article/04051a7437b741f483301b874920a497
Publikováno v:
Journal of the Korean Physical Society. 82:257-262
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77593bb924c92b9c310f1add5a985306
https://doi.org/10.1007/s40042-023-00723-y
https://doi.org/10.1007/s40042-023-00723-y
Publikováno v:
Radiocarbon. 65:201-207
Radiocarbon (14C) in natural samples undergoes changes due to variations in atmospheric CO2 resulting from anthropogenic activities. To analyze the variation of the 14C ratio in atmospheric CO2, deciduous tree leaves were collected in Gyeongju, a pop
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::76178f9a72e020374bc5ad8505139772
https://doi.org/10.1017/rdc.2022.77
https://doi.org/10.1017/rdc.2022.77
Publikováno v:
Journal of the Korean Society for Precision Engineering. 38:365-371
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::362df1cda15be463470ee3631cdb20d5
https://doi.org/10.7736/jkspe.021.009
https://doi.org/10.7736/jkspe.021.009
Publikováno v:
IEEE Transactions on Plasma Science. 49:298-301
A negative carbon-ion source has been designed and tested at the Dongguk University accelerator mass-spectrometer facility in Korea. The beam-extraction conditions in the ion-source test stand were determined experimentally. Negative carbon-ion beam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ec46112ba8a26d9b7dad772a6366657
https://doi.org/10.1109/tps.2020.3043730
https://doi.org/10.1109/tps.2020.3043730
Publikováno v:
Journal of the Korean Physical Society. 77:425-428
Radiocarbon dating using a compact or low energy accelerator mass spectrometer has been rapidly developing in recent times. A gaseous ion source was designed and simulated to reduce sample preparation times. Then, a simulation study for low-energy ac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1011eb3af5cb698b2dedf66f810cad08
https://doi.org/10.3938/jkps.77.425
https://doi.org/10.3938/jkps.77.425
Publikováno v:
Journal of the Korean Physical Society. 76:613-616
The demand for radiocarbon dating using the accelerator mass spectrometer (AMS) is rapidly increasing. Accordingly, a system to inject gaseous samples directly into an ion source in order to measure isotopic ratios by using an Ams system is proposed.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aa0b68a6131edf7c8f8d01a148326a48
https://doi.org/10.3938/jkps.76.613
https://doi.org/10.3938/jkps.76.613
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 465:15-18
A compact accelerator mass spectrometry (AMS) system dedicated to measuring 14C was installed at the Dongguk University, Korea. Standards SRM 4990B (Ox-I), SRM 4990C (Ox-II), IAEA C-7, and IAEA C-8 were used to conduct the acceptance tests. Phthalic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a43158d3c4d03185611cf35b1410cc03
https://doi.org/10.1016/j.nimb.2019.12.027
https://doi.org/10.1016/j.nimb.2019.12.027
Publikováno v:
IEEE Transactions on Plasma Science. :1-5
A negative carbon-ion source was designed for accelerator mass spectrometry for application in the medical field to minimize cross-contamination and to increase the measurement efficiency. The ion source was designed by adjusting the distance between
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d06e51ebe32b83134703c49d5e84d1db
https://doi.org/10.1109/tps.2019.2958656
https://doi.org/10.1109/tps.2019.2958656
Publikováno v:
Vacuum. 164:246-249
A gaseous ion source has been designed at Dongguk University accelerator mass spectrometer facility, Korea. Radiocarbon dating is conducted at this facility with a mini carbon dating system and a prototype ion source has been developed for a gas inje
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f64cf65007be66ddf158f753bdc2b5e
https://doi.org/10.1016/j.vacuum.2019.03.034
https://doi.org/10.1016/j.vacuum.2019.03.034