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DESIGN AND MANUFACTURING OF THE CASSEGRAIN INTERFACE MODULE OF THE BOAO ECHELLE SPECTROGRAPH
KIM KANG-MIN,JANG BE-HO,HAN INWOO,JANG JEONG GYUN,SUNG HYUN CHUL,CHUN MOO-YOUNG,HYUNG SIEK,YOON TAE-SEOG,VOGT STEVEN S. The Korean Astronomical Society 2002 Journal of The Korean Astronomical Society Vol.35 No.4
Cassegrain interface module (CIM) of the fiber-fed high resolution echelle spectrograph has been designed and manufactured for the 1.8 m reflector at the Bohynsan Optical Astronomy Observatory. We also constructed a long slit spectrograph attached to this CIM, which would replace the earlier rather inefficient medium dispersion spectrometer. We present detailed description for design and manufacturing concepts of the CIM which consists of a slit assembly, slit monitoring system, calibration lamp system and a long slit spectrograph, in order to provide how the overall system and each part. are constructed. The preliminary performance test carried out so far seems to indicate a successful result.
DATA ACQUISITION SYSTEM OF THE SOFT
Moon, Yong-Jae,Park, Young-Deuk,Jang, Be-Ho,Sim, Kyung-Jin,Yun, Hong-Sik,Kim, Jung-Hoon The Korean Astronomical Society 1996 天文學論叢 Vol.11 No.1
Data acquisition system mounted on the Solar Flare Telescope at Bohyunsan Optical Astronomy Observatory is briefly described. The system is made up with CCD cameras, an image processor, a PCI-type PC and a SUN workstation. The image processor, MVC 150/40 comprises a variable scan acquisition module, an image manager and a binary correlator computational module. A typical polarization image of a sunspot is presented to demonstrate performance of the system.
박영득,문용재,장비호,심경진,Park, Young-Deuk,Moon, Yong-Jae,Jang, Be-Ho,Sim, Kyung-Jin 한국천문학회 1997 天文學論叢 Vol.12 No.1
SOFT($\underline{So}lar\;\underline{F}lare\;\underline{T}elescope$) installed at BOAO(Bohyunsan Optical Astronomy Observatory) is purposed for observing solar active regions using four refractors on single mount with a $400"\times300"$ field of view: Two refractors with a diameter of 15cm(f15) are observe the white light and $H\alpha$, and the other two refractors with a diameter of 20cm(f8) are observe the magnetic field distribution and Doppler shifts at the solar chromosphere. Three Lyot filters, one of the most important observational instruments, are installed on the optical rails for VMG, LMG, and $H\alpha$ that possible to very narrow pass band observation under high precision stability of temperature. From the combination of KD*P and quarter wave plate in the Lyot filter possible observe the magnetic fields strength and doppler shifts by using the characteristics of polarization components. In this paper, we introduce the basic characteristics, optical system, and monitor system of the SOFT.