Mt. Fuji submillimeter-wave telescope

Yutaro Sekimoto, Yuji Arikawa, Yoshiyuki Aso, Hideo Fujiwara, Masafumi Ikeda, Junji Inatani, Tetsuya Ito, Mituhiro Iwata, Kazuhisa Kamegai, Hiroyuki Maezawa, Takashi Noguchi, Masatoshi Ohishi, Tomoharu Oka, Hiroyuki Ozeki, Gaku Saito

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The Mt. Fuji submillimeter-wave telescope has been operated since November 1998 to survey neutral atomic carbon (CI) toward the Milky Way. It has a 1.2 m main reflector with a surface accuracy of 10 μm in rms. A dual polarization superconductor-insulator-superconductor (SIS) mixer receiver mounted on the Nasmyth focus receives 810/492/345 GHz bands in DSB simultaneously. An acousto-optical spectrometer (AOS) has 1024 channels for 0.8 GHz bandwidth. The telescope was installed with a helicopter and bulldozers at the summit of Mt. Fuji (alt. 3725 m) in July 1998 after a test operation at Nobeyama for a year. It has been remotely operated via a satellite communication from Tokyo or Nobeyama. Atmospheric opacity at Mt. Fuji was 0.4 - 1.0 at 492 GHz in 30% of time and 0.07 - 0.5 at 345 GHz in 60% of time during winter five months. The system noise temperature was typically 1200 K (SSB) at 492 GHz and 500 K (DSB) at 345 GHz. The beam size was measured to be 2.′2 and 3.′1 at 492 and 345 GHz, respectively. We have conducted a large-scale survey of the CI (492 GHz) and CO (3-2:345 GHz) emission from nearby molecular clouds with a total area of 10 square degrees. We describe the telescope system and report the performance obtained in the 1998 winter.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSociety of Photo-Optical Instrumentation Engineers
Pages185-196
Number of pages12
Volume4015
Publication statusPublished - 2000
Externally publishedYes
EventRadio Telescopes - Munich, Ger
Duration: 2000 Mar 272000 Mar 30

Other

OtherRadio Telescopes
CityMunich, Ger
Period00/3/2700/3/30

Fingerprint

Submillimeter waves
submillimeter waves
Telescopes
telescopes
winter
Superconducting materials
SIS (superconductors)
satellite communication
noise temperature
helicopters
Opacity
Communication satellites
opacity
molecular clouds
Helicopters
reflectors
Spectrometers
receivers
spectrometers
Polarization

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Sekimoto, Y., Arikawa, Y., Aso, Y., Fujiwara, H., Ikeda, M., Inatani, J., ... Saito, G. (2000). Mt. Fuji submillimeter-wave telescope. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 4015, pp. 185-196). Society of Photo-Optical Instrumentation Engineers.

Mt. Fuji submillimeter-wave telescope. / Sekimoto, Yutaro; Arikawa, Yuji; Aso, Yoshiyuki; Fujiwara, Hideo; Ikeda, Masafumi; Inatani, Junji; Ito, Tetsuya; Iwata, Mituhiro; Kamegai, Kazuhisa; Maezawa, Hiroyuki; Noguchi, Takashi; Ohishi, Masatoshi; Oka, Tomoharu; Ozeki, Hiroyuki; Saito, Gaku.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 4015 Society of Photo-Optical Instrumentation Engineers, 2000. p. 185-196.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Sekimoto, Y, Arikawa, Y, Aso, Y, Fujiwara, H, Ikeda, M, Inatani, J, Ito, T, Iwata, M, Kamegai, K, Maezawa, H, Noguchi, T, Ohishi, M, Oka, T, Ozeki, H & Saito, G 2000, Mt. Fuji submillimeter-wave telescope. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 4015, Society of Photo-Optical Instrumentation Engineers, pp. 185-196, Radio Telescopes, Munich, Ger, 00/3/27.
Sekimoto Y, Arikawa Y, Aso Y, Fujiwara H, Ikeda M, Inatani J et al. Mt. Fuji submillimeter-wave telescope. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 4015. Society of Photo-Optical Instrumentation Engineers. 2000. p. 185-196
Sekimoto, Yutaro ; Arikawa, Yuji ; Aso, Yoshiyuki ; Fujiwara, Hideo ; Ikeda, Masafumi ; Inatani, Junji ; Ito, Tetsuya ; Iwata, Mituhiro ; Kamegai, Kazuhisa ; Maezawa, Hiroyuki ; Noguchi, Takashi ; Ohishi, Masatoshi ; Oka, Tomoharu ; Ozeki, Hiroyuki ; Saito, Gaku. / Mt. Fuji submillimeter-wave telescope. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 4015 Society of Photo-Optical Instrumentation Engineers, 2000. pp. 185-196
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AU - Inatani, Junji

AU - Ito, Tetsuya

AU - Iwata, Mituhiro

AU - Kamegai, Kazuhisa

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AU - Ohishi, Masatoshi

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AU - Saito, Gaku

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