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Titolo:
A superconducting solenoidal spectrometer for a balloon-borne experiment
Autore:
Ajima, Y; Anraku, K; Haga, T; Higashi, Y; Honda, H; Imori, M; Inaba, S; Kimura, N; Kobayashi, M; Makida, Y; Matsui, N; Matsumoto, H; Matsunaga, H; Motoki, M; Nozaki, M; Nishihara, Y; Nishimura, J; Orito, S; Otoba, M; Saeki, T; Sanuki, T; Sasaki, M; Shimamura, K; Suzuki, J; Suzuki, K; Takimi, N; Tanaka, K; Tsunoda, T; Ueda, I; Yajima, T; Yamagami, T; Yamamoto, A; Yamaoka, H; Yoshida, T; Yoshimura, K;
Indirizzi:
KEK, High Energy Accelerator Res Org, Tsukuba, Ibaraki 3050801, Japan KEKTsukuba Ibaraki Japan 3050801 es Org, Tsukuba, Ibaraki 3050801, Japan Univ Tokyo, Dept Phys, Tokyo 1130033, Japan Univ Tokyo Tokyo Japan 1130033 iv Tokyo, Dept Phys, Tokyo 1130033, Japan Univ Tokyo, Int Ctr Elementary Particle Phys, Tokyo 1130033, Japan Univ Tokyo Tokyo Japan 1130033 ntary Particle Phys, Tokyo 1130033, Japan Kobe Univ, Dept Phys, Kobe, Hyogo 6578501, Japan Kobe Univ Kobe Hyogo Japan 6578501 Dept Phys, Kobe, Hyogo 6578501, Japan Kobe Univ, Grad Sch Sci & Technol, Kobe, Hyogo 6578501, Japan Kobe Univ Kobe Hyogo Japan 6578501 & Technol, Kobe, Hyogo 6578501, Japan Inst Space & Astronaut Sci, Sagamihara, Kanagawa 2298510, Japan Inst Space& Astronaut Sci Sagamihara Kanagawa Japan 2298510 98510, Japan
Titolo Testata:
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
fascicolo: 1, volume: 443, anno: 2000,
pagine: 71 - 100
SICI:
0168-9002(20000321)443:1<71:ASSSFA>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Soggetto:
COSMIC-RAY ANTIPROTONS;
Keywords:
BESS; balloon-borne payload; magnetic-rigidity spectrometer; thin superconducting solenoid;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
22
Recensione:
Indirizzi per estratti:
Indirizzo: Yoshida, T KEK, High Energy Accelerator Res Org, Tsukuba, Ibaraki 3050801,Japan KEK Tsukuba Ibaraki Japan 3050801 kuba, Ibaraki 3050801, Japan
Citazione:
Y. Ajima et al., "A superconducting solenoidal spectrometer for a balloon-borne experiment", NUCL INST A, 443(1), 2000, pp. 71-100

Abstract

The BESS detector is a new type of balloon-borne spectrometer which utilizes various technologies recently developed for collider experiments. The principal scientific objectives include a measurement of cosmic-ray antiproton spectrum, search for anti-nuclei in cosmic radiation, and precise meaurements of cosmic-ray primaries. A thin superconducting solenoidal coil produces a uniform magnetic field of 1 T. Cylindrical drift chambers are located inside and outside the coil and perform continuous tracking. The momentum resolution is 0.5% at 1 GeV/c. i.e., the maximum detectable rigidity is 200 GV. Scintillation counter hodoscopes, placed above and below the solenoid, provide timing and dE/dx measurements and trigger generation. The timing resolution is 80 ps/counter. This cylindrical configuration achieves a large geometrical acceptance of 0.35 m(2) sr which is essential to detect rare cosmic-ray particles. In order to cope with high trigger rate and large data size, intelligent trigger circuits and a fast and parallel data acquision system are also developed. In 1993, the first scientific flight of the BESS apparatus was carried out and the first mass-measured antiprotons were detected at energies below 500 MeV (C) 2000 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/11/20 alle ore 11:15:21