Author: Lawrence W. TownsendPublisher:
ISBN:
Category :
Languages : en
Pages : 58
Book Description
Heavy-ion Total and Absorption Cross Sections Above 25 MeV/nucleon
Author: Lawrence W. TownsendProton-Nucleus Total Cross Sections in Coupled-Channel Approach
Author: R. K. TripathiPublisher:
ISBN:
Category : Cross sections (Nuclear physics)
Languages : en
Pages : 18
Book Description
Recently, nucleon-nucleon (N-N) cross sections in the medium have been extracted directly from experiment. The in-medium N-N cross sections form the basic ingredients of several heavy-ion scattering approaches including the coupled-channel approach developed at the Langley Research Center. In the present study the ratio of the real to the imaginary part of the two-body scattering amplitude in the medium was investigated. These ratios are used in combination with the in-medium N-N cross sections to calculate total proton-nucleus cross sections. The agreement is excellent with the available experimental data. These cross sections are needed for the radiation risk assessment of space missions.
Proton-Nucleus Elastic Cross Sections Using Two-Body In-Medium Scattering Amplitudes
Author: R. K. TripathiPublisher:
ISBN:
Category : Cross sections (Nuclear physics)
Languages : en
Pages : 20
Book Description
NASA Technical Note
Author: NASA Reference Publication
Author: NASA Technical Paper
Author: ERDA Energy Research Abstracts
Author: Scientific and Technical Aerospace Reports
Author: Transport Methods and Interactions for Space Radiations
Author: Publisher:
ISBN:
Category : Extraterrestrial radiation
Languages : en
Pages : 624
Book Description
Biological Effects and Physics of Solar and Galactic Cosmic Radiation Part B
Author: Charles E. SwenbergPublisher: Springer Science & Business Media
ISBN: 1461529166
Category : Science
Languages : en
Pages : 938
Book Description
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.