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Development of Laser-driven Proton Source Toward Its Applications

  • Sagisaka, Akito;Daido, Hiroyuki;Pirozhkov, Alexander S.;Yogo, Akifumi;Ogura, Koichi;Orimo, Satoshi;Ma, Jinglong;Mori, Michiaki;Nishiuchi, Mamiko;Bulanov, Sergei V.;Esirkepov, Timur Zh.;Oishi, Yuji;Nayuki, Takuya;Fujii, Takashi;Nemoto, Koshichi;Nagatomo, Hideo
    • Journal of the Optical Society of Korea
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    • v.13 no.1
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    • pp.37-41
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    • 2009

  • We observe the proton signals produced by laser interaction with thin-foil targets of polyimide and of copper. We change the thickness of the polyimide target to $7.5{\mu}m$, $12.5{\mu}m$, and $50{\mu}m$. High-energy protons with the maximum energy of ${\sim}2.3\;MeV$ from $7.5{\mu}m$ thick polyimide are observed. This proton beam with the maximum energy of multi-MeV has various applications such as a proton shadowgraphy.

  • https://doi.org/10.3807/JOSK.2009.13.1.037 인용 PDF KSCI

Development of state-of-the-art detectors for X-ray astronomy

  • Lee, Sang Jun;Adams, J.S.;Audley, H.E.;Bandler, S.R.;Betancourt-Martinez, G.L.;Chervenak, J.A.;Eckart, M.E.;Finkbeiner, F.M.;Kelley, R.L.;Kilbourne, C.A.;Porter, F.S.;Sadleir, J.E.;Smith, S.J.;Wassell, E.J.
    • The Bulletin of The Korean Astronomical Society
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    • v.40 no.1
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    • pp.53.3-54
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    • 2015

  • We are developing large arrays of X-ray microcalorimeters for applications in X-ray astronomy. X-ray microcalorimeters can detect the energy of X-rays with extremely high resolution. High-resolution Imaging spectroscopy enabled by these arrays will allow us to study the hot and energetic nature of the Universe through the detection of X-rays from astronomical objects such as neutron stars or black holes. I will introduce the state-of-the-art X-ray microcalorimeters being developed at NASA/GSFC and the future X-ray observatory missions based on microcalorimeters.

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Cutaneous Liposarcoma in a Mongrel Dog

  • Lee, Jae-Hee;Hwang, Mee-Na;Han, Man-Gil;Jang, Se-Ung;Hong, Yeun-Jung;Lee, Gi-Jong;Jung, In-Sung
    • Proceedings of the Korean Society of Veterinary Clinics Conference
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    • 2007.05a
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    • pp.110-110
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    • 2007

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Pixel design for Improving Transmittance in OCB LCD

  • Lee, K.C.;Sha, Y.A.;Su, P.J.;Hsieh, C.H.;Chang, K.H.;Hsiao, C.C.;Fuh, S.Y.;Cheng, W.Y.;Liao, Y.C.;Yang, J.C.;Lo, K-L;Lee, D.W.;Chang, Y.P.;Shiu, J.W.
    • 한국정보디스플레이학회:학술대회논문집
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    • 2007.08a
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    • pp.395-398
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    • 2007

  • Two new cell structures for optical compensated bend were proposed. There are two groups of slit electrodes, which are driven by two different signals corresponding to the entire electrode as common electrode. The transmittance was enhanced without increasing the response time and light leakage. Compared with the traditional OCB mode, the increment of the transmittance of each kind is about 90% and 30%.

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A Micromachined Millimeter-Wave 60 GHz Band-pass Filter (마이크로머시닝 기술을 이용한 60 GHz 대역 통과 여파기)

  • Maeng, Sung-Chul;Yun, Tae-Soon;Kim, Ki-Byoung;Lee, Hoon;Kim, Jong-Yong;Lee, Jong-Chul;Lee, Bok-Hyoung;Kim, Hae-Sung;Shin, Dong-Hoon;Rhee, Jin-Koo
    • Proceedings of the Korea Electromagnetic Engineering Society Conference
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    • 2002.11a
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    • pp.25-28
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    • 2002

  • In this paper, a micromachined millimeter-wave end-gap band-pass filter (BPF) is presented. The millimeter-wave BPF is designed using 3D design software, Zeland IE3D with the center frequency of 60 GHz, band width of 3 GHz, ripple of 1㏈ and insertion loss of 2.5dB. This type of micromachined BPF can be used in millimeter-wave circuit.

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