Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Development of a compact EUV photometer for imaging the planetary magnetosphere
Autore:
Yoshikawa, I; Yamazaki, A; Shiomi, K; Nakmura, M; Yamashita, K; Saito, Y; Hirahara, M; Takizawa, Y; Miyake, W; Matsuura, S;
Indirizzi:
Inst Space & Astronaut Sci, Kanagawa 2298510, Japan Inst Space & AstronautSci Kanagawa Japan 2298510 anagawa 2298510, Japan Commun Res Labs, Koganei, Tokyo 1848795, Japan Commun Res Labs Koganei Tokyo Japan 1848795 Koganei, Tokyo 1848795, Japan Univ Tokyo, Grad Sch Sci, Tokyo 1130033, Japan Univ Tokyo Tokyo Japan 1130033 Tokyo, Grad Sch Sci, Tokyo 1130033, Japan Nagoya Univ, Dept Phys, Nagoya, Aichi 4648602, Japan Nagoya Univ Nagoya Aichi Japan 4648602 Phys, Nagoya, Aichi 4648602, Japan Rikkyo Univ, Coll Sci, Dept Phys, Tokyo 1718501, Japan Rikkyo Univ TokyoJapan 1718501 oll Sci, Dept Phys, Tokyo 1718501, Japan Inst Phys & Chem Res, Adv Comp Ctr, Div Image Informat, Wako, Saitama 3510198, Japan Inst Phys & Chem Res Wako Saitama Japan 3510198 o, Saitama 3510198, Japan Hamamatsu Photon KK, Electron Tube Div, Shizuoka 4380193, Japan Hamamatsu Photon KK Shizuoka Japan 4380193 Div, Shizuoka 4380193, Japan
Titolo Testata:
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
fascicolo: A11, volume: 106, anno: 2001,
pagine: 26057 - 26074
SICI:
0148-0227(20011101)106:A11<26057:DOACEP>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Soggetto:
HE-II 304-A; ULTRAVIOLET-SCANNER; EXTREME-ULTRAVIOLET; LOBE/MANTLE REGIONS; GEOTAIL OBSERVATION; ION DISTRIBUTION; PLASMA; IONOSPHERE; HELIUM; MARS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
45
Recensione:
Indirizzi per estratti:
Indirizzo: Yoshikawa, I Inst Space & Astronaut Sci, Kanagawa 2298510, Japan Inst Space & Astronaut Sci Kanagawa Japan 2298510 10, Japan
Citazione:
I. Yoshikawa et al., "Development of a compact EUV photometer for imaging the planetary magnetosphere", J GEO R-S P, 106(A11), 2001, pp. 26057-26074

Abstract

We have developed a lightweight, compact, and highly sensitive Extreme ultraviolet (EUV) photometer for a space-borne instrument. The photometer is onboard Japan's Mars orbiter, Planet-B, which was successfully launched on July 4, 1998, and stayed in the parking orbits around the Earth for 6 months. The new photometer is designed for studying the spatial distribution of helium ions and atoms by detecting He Il (304 Angstrom) and He I (584 Angstrom), which are major emission lines detectable around a planet. The photometer is a type of normal-incidence telescope that consists of a mirror, filters, and a detector. The mirror employs a new technology of a molybdenum/silicon multilayer coating and is designed to have peak reflectivity at 304 Angstrom. The photometer is capable of taking two-dimensional images by using the spin and orbital motions of the spacecraft. There are open questions concerning the Earth's plasmasphere and plasma sheet that cannot be resolved by in situ observations alone (e.g., global shape of the plasmasphere andcold ions in the plasma sheet). Our observations with the EUV photometer over a reasonable number of orbits will answer them. The photometer also shows an outstanding performance of measuring the Martian helium.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/04/20 alle ore 21:45:51