Ballooning activities in Japan

Yoshida, Tetsuya; Akita, Daisuke; Fuke, H.; Kadokura, Akira; Kawada, J.; Kawasaki, T.; Ijima, Issei; Izutsu, Naoki; Matsuzaka, Y.; Mizuta, Eiichi; Namiki, Michiyoshi; Nonaka, N.; Ohta, Shigeo; Saito, Yoshitaka; Seo, Motoharu; Toriumi, Michihiko; Yamada, Kazuhiko; Yamagami, T.

doi:10.1016/j.asr.2007.03.041

Cited by 4 publications

(3 citation statements)

References 7 publications

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“…There are many uncertainties for TeV observations, and the tens of TeV sepectrum observations may give a better understanding of whether the cut off really exists. Figure 1: Primary energy spectra of protons [12], electrons [1,2,14,15,16,17,18] and diffuse γ-rays at different galactic latitude [4,5]. The black solid line is the sum of cosmic-ray hadrons used in simulation.…”

Section: Introductionmentioning

confidence: 99%

Simulation study on the detection of high energy electrons and gamma rays with the newly upgraded Tibet ASgamma experiment

Chen¹

2016

Proceedings of the 34th International Cosmic Ray Conference — PoS(ICRC2015)

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The rapidly decreasing electron flux with the power index of -3.3 makes it difficult to measure directly with instruments on board balloons and satellites at energies higher than about 1 TeV. However, the large-area and wide-field EAS arrays could be used to extend cosmic-ray (CR) electrons spectrum (e + + e − , in the following electrons refer to both electrons and positrons) measurements up to several tens of TeV or more. The newly upgraded Tibet hybrid AS experiment (Tibet-III+MD) may become one of the world's most sensitive observatories of gamma rays or maybe electrons above ∼10 TeV due to its high separation ability of γ-rays and hadrons. In this paper, using a full Monte Carlo simulation, we examine its ability for measuring CR electrons in the high galactic latitude area above ∼10 TeV.

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Section: Introductionmentioning

confidence: 99%

Simulation study on the detection of high energy electrons and gamma rays with the newly upgraded Tibet ASgamma experiment

Chen¹

2016

Proceedings of the 34th International Cosmic Ray Conference — PoS(ICRC2015)

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“…The enterprise began in 1966, and from 1971 to 2007, around 400 scienti¯c balloons were launched from the former Sanriku Base (Yoshida et al, 2008). Since 2008, annual domestic balloon campaigns have been conducted from Taiki Aerospace Research Field (TARF) in Hokkaido (Fuke et al, 2010a,b).…”

Section: Introductionmentioning

confidence: 99%

Recent Highlights of Scientific Ballooning in Japan

Fuke

2017

J. Astron. Instrum.

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Since 2008, the Japan Aerospace Exploration Agency (JAXA) has carried out annual domestic balloon campaigns from Taiki Aerospace Research Field (TARF). Productive results have been obtained by many projects in academic¯elds such as atmospheric science, space engineering, cosmic-ray physics, and astronomy. In 2013, an 80,000-m 3 balloon made from a 2.8-m ultra-thin polyethylene¯lm reached an altitude of 53.7 km, equaling the world record for the altitude of an unmanned balloon. In 2015, JAXA carried out a balloon campaign from Alice Springs in Australia as a precursor of future sustainable overseas activities to compliment the domestic ones at TARF. In this paper, we discuss recent highlights of and future prospects for Japanese scienti¯c ballooning.

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“…We have been working toward development of a SPB that enables a long duration flight in the upper stratosphere. A number of indoor tests using a variety size of scaled models were done and many flight experiments also carried out 3,4) . As a result, we developed a SPB with a volume of 300,000 m 3 that enables to fly at 36.5 km in altitude suspended a payload of 550 kg.…”

Section: Introductionmentioning

confidence: 99%

Development of a Super-Pressure Balloon with an Improved Design

Izutsu

Akita

Fuke

et al. 2010

AEROSPACE TECHNOLOGY JAPAN

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A zero-pressure balloon used for scientific observation in the stratosphere has an unmanageable limitation that its floating altitude decreases during a nighttime because of temperature drop of the lifting gas. Since a super-pressure balloon may not change its volume, the lifetime can extend very long. We had introduced so called the 'lobed-pumpkin' type of super-pressure balloon that can realize a full-scale long-duration balloon and it will be in practical use in the very near future. As for larger super-pressure balloons, however, we still have some potential difficulties to be resolved. We here propose a new design suitable for a larger super-pressure balloon, which is roughly 'lobed pumpkin with lobed cylinder' and can adapt a single design for balloons of a wide range of volumes. Indoor inflation tests were successfully carried out with balloons designed and made by the method. It has been shown that the limit of the resisting pressure differential for a new designed balloon is same as that of a normal lobed-pumpkin balloon.

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Ballooning activities in Japan

Cited by 4 publications

References 7 publications

Simulation study on the detection of high energy electrons and gamma rays with the newly upgraded Tibet ASgamma experiment

Simulation study on the detection of high energy electrons and gamma rays with the newly upgraded Tibet ASgamma experiment

Recent Highlights of Scientific Ballooning in Japan

Development of a Super-Pressure Balloon with an Improved Design

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