Biological Effects and Physics of Solar and Galactic Cosmic Radiation Part B

Biological Effects and Physics of Solar and Galactic Cosmic Radiation Part B PDF

Author: Charles E. Swenberg

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 938

ISBN-13: 1461529166

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Space missions subject human beings or any other target of a spacecraft to a radiation environment of an intensity and composition not available on earth. Whereas for missions in low earth orbit (LEO), such as those using the Space Shuttle or Space Station scenario, radiation exposure guidelines have been developed and have been adopted by spacefaring agencies, for exploratory class missions that will take the space travellers outside the protective confines of the geomagnetic field sufficient guidelines for radiation protection are still outstanding. For a piloted Mars mission, the whole concept of radiation protection needs to be reconsidered. Since there is an increasing interest of many nations and space agencies in establishing a lunar base and lor exploring Mars by manned missions, it is both, timely and important to develop appropriate risk estimates and radiation protection guidelines which will have an influence on the design and structure of space vehicles and habitation areas of the extraterrestrial settlements. This book is the result of a multidisciplinary effort to assess the state of art in our knowledge on the radiation situation during deep space missions and on the impact of this complex radiation environment on the space traveller. It comprises the lectures by the faculty members as well as short contributions by the students given at the NATO Advanced Study Institute "Biological Effects and Physics of Solar and Galactic Cosmic Radiation" held in Armacao de Pera, Portugal, 12-23 October, 1991.

Calibration of the Rapid Scan Particle Detector Mounted in the SCATHA Satellite

Calibration of the Rapid Scan Particle Detector Mounted in the SCATHA Satellite PDF

Author: Frederick A. Hanser

Publisher:

Published: 1979

Total Pages: 48

ISBN-13:

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A rapid scan particle detector (RSPD) for electrons and protons in the range of 0.05 keV to greater than a few MeV has been designed, constructed, and calibrated. The RSPD uses electrostatic analyzers (ESA's) with Spiraltron electron multipliers (SEM's) for 0.05 to 60 keV particles, and solid-state detector telescopes for the higher energy particles. The ESA's have been extensively calibrated at the Rice University Calibration Facility, using 0.04 to 45 keV electrons and 0.1 to 30 keV ions, and the results are given in this report. The calibration procedure for the SSS's is also described, and the results are tabulated. The RSPD was launched in the SCATHA satellite on 30 January 1979 and is known as the SC5 instrument. Orbit operations have been excellent, with the SSS's operating nearly 100 percent of the time and the ESA's operating about 50 percent time operation at a higher bias level is achieving a sufficiently stable operation that should allow reliable data-taking for at least the one year- design lifetime.