A Shield In Space
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A Shield In Space
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Author : Sanford Lakoff
language : en
Publisher: Univ of California Press
Release Date : 2023-04-28
A Shield In Space written by Sanford Lakoff and has been published by Univ of California Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-04-28 with History categories.
This title is part of UC Press's Voices Revived program, which commemorates University of California Press’s mission to seek out and cultivate the brightest minds and give them voice, reach, and impact. Drawing on a backlist dating to 1893, Voices Revived makes high-quality, peer-reviewed scholarship accessible once again using print-on-demand technology. This title was originally published in 1989.
What Would It Take To Build A Deflector Shield
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Author : Roberta Baxter
language : en
Publisher: Sci-Fi Tech
Release Date : 2021-01-28
What Would It Take To Build A Deflector Shield written by Roberta Baxter and has been published by Sci-Fi Tech this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-01-28 with categories.
Design Considerations For A Space Station Radiation Shield For Protection From Both Man Made And Natural Sources
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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-07-06
Design Considerations For A Space Station Radiation Shield For Protection From Both Man Made And Natural Sources written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-06 with categories.
This study was conducted to analyze scenarios involving the use of nuclear-power vehicles in the vicinity of a manned Space Station (SS) in low-earth-orbit (LEO) to quantify their radiological impact to the station crew. In limiting the radiant dose to crew members, mission planners may (1) shut the reactor down prior to reentry, (2) position the vehicle at a prescribed parking distance, and (3) deploy radiation shield about the shutdown reactor. The current report focuses on the third option in which point-kernel gamma-ray shielding calculations were performed for a variety of shield configurations for both nuclear electric propulsion (NEP) and nuclear thermal rocket (NTR) vehicles. For a returning NTR vehicle, calculations indicate that a 14.9 MT shield would be needed to limit the integrated crew exposure to no more than 0.05 Sv over a period of six months (25 percent of the allowable exposure to man-made radiation sources). During periods of low vehicular activity in LEO, the shield may be redeployed about the SS habitation module in order to decrease crew exposures to trapped proton radiations by approximately a factor of 10. The corresponding shield mass required for deployment at a returning NEP vehicle is 2.21 MT. Additional scenarios examined include the radioactivation of various metals as might be found in tools used in EVA activities. Bolch, Wesley E. and Peddicord, K. Lee and Felsher, Harry and Smith, Simon Unspecified Center...
Hypervelocity Impact Analysis Of International Space Station Whipple And Enhanced Stuffed Whipple Shields
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Author : Michael E. Kalinski
language : en
Publisher:
Release Date : 2004-12
Hypervelocity Impact Analysis Of International Space Station Whipple And Enhanced Stuffed Whipple Shields written by Michael E. Kalinski and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-12 with categories.
The International Space Station (ISS) must be able to withstand the hypervelocity impacts of micrometeoroids and orbital debris that strike its many surfaces. In order to design and implement shielding which will prevent hull penetration or other operational losses, NASA must first model the orbital debris and micrometeoroid environment. Based upon this environment, special multi-stage shields called Whipple and Enhanced Stuffed Whipple Shields are developed and implemented to protect the ISS surfaces. Ballistic limit curves that establish shield failure criteria are determined via ground testing. These curves are functions of material strength, shield spacing, projectile size, shape and density, as well as a number of other variables. The combination of debris models and ballistic limit equations allows NASA to model risk to the ISS using a hydrocode called BUMPER. This thesis modifies and refines existing ballistic limit equations for U.S. Laboratory Module shields to account for the effects of the projectile (debris/ micro-meteoroid) densities. Using these refined ballistic limit equations this thesis also examines alternative shielding materials and configurations to optimize shield design for minimum mass and maximum stopping potential, proposing alternate shield designs for future NASA ground testing. A final goal of this thesis is to provide the Department of Defense a background in satellite shield theory and design in order to improve protection against micrometeoroid and orbital debris impacts on future space-based national systems.
Radiation Shielding For Manned Space Flight
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Author : Lewis E. Wallner
language : en
Publisher:
Release Date : 1961
Radiation Shielding For Manned Space Flight written by Lewis E. Wallner and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1961 with Space flight to Mars categories.
Potential Polymeric Sphere Construction Materials For A Spacecraft Electrostatic Shield
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Author : National Aeronautics and Space Adm Nasa
language : en
Publisher: Independently Published
Release Date : 2018-09-16
Potential Polymeric Sphere Construction Materials For A Spacecraft Electrostatic Shield written by National Aeronautics and Space Adm Nasa and has been published by Independently Published this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-09-16 with Science categories.
An electrostatic shielding concept for spacecraft radiation protection under NASA s Exploration Systems Research and Technology Program was evaluated for its effectiveness and feasibility. The proposed shield design is reminiscent of a classic quadrupole with positively and negatively charged spheres surrounding the spacecraft. The project addressed materials, shield configuration, power supply, and compared its effectiveness to that of a passive shield. The report herein concerns the identification of commercially available materials that could be used in sphere fabrication. It was found that several materials were needed to potentially construct the spheres for an electrostatic shield operating at 300 MV.Smith, Joseph G., Jr. and Smith, Trent and Williams, Martha and Youngquist, Robert and Mendell, WendellJohnson Space Center; Kennedy Space Center; Langley Research CenterSPACECRAFT CONSTRUCTION MATERIALS; RADIATION PROTECTION; RADIATION SHIELDING; ELECTROSTATIC SHIELDING; TENSILE STRENGTH; FABRICATION; QUADRUPOLES; SPHERES
Meteoroid Debris Shielding
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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-06-15
Meteoroid Debris Shielding written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-06-15 with categories.
This report provides innovative, low-weight shielding solutions for spacecraft and the ballistic limit equations that define the shield's performance in the meteoroid/debris environment. Analyses and hypervelocity impact testing results are described that have been used in developing the shields and equations. Spacecraft shielding design and operational practices described in this report are used to provide effective spacecraft protection from meteoroid and debris impacts. Specific shield applications for the International Space Station (ISS), Space Shuttle Orbiter and the CONTOUR (Comet Nucleus Tour) space probe are provided. Whipple, Multi-Shock and Stuffed Whipple shield applications are described. Christiansen, Eric L. Johnson Space Center
Effects Of Radiobiological Uncertainty On Shield Design For A 60 Day Lunar Mission
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Author : John William Wilson
language : en
Publisher:
Release Date : 1993
Effects Of Radiobiological Uncertainty On Shield Design For A 60 Day Lunar Mission written by John William Wilson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Galactic cosmic rays categories.
Some consequences of uncertainties in radiobiological risk due to galactic cosmic ray exposure are analyzed to determine their effect on engineering designs for a first lunar outpost, a 60-day mission.
Protecting The Space Station From Meteoroids And Orbital Debris
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Author : Division on Engineering and Physical Sciences
language : en
Publisher: National Academies Press
Release Date : 1997-02-02
Protecting The Space Station From Meteoroids And Orbital Debris written by Division on Engineering and Physical Sciences and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997-02-02 with Science categories.
Inhibited Shaped Charge Launcher Testing Of Spacecraft Shield Designs
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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-07-18
Inhibited Shaped Charge Launcher Testing Of Spacecraft Shield Designs written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-18 with categories.
This report describes a test program in which several orbital debris shield designs were impact tested using the inhibited shaped charge launcher facility at Southwest Research Institute. This facility enables researchers to study the impact of one-gram aluminum projectiles on various shielding designs at velocities above 11 km/s. A total of twenty tests were conducted on targets provided by NASA-MSFC. This report discusses in detail the shield design, the projectile parameters and the test configuration used for each test. A brief discussion of the target damage is provided, as the detailed analysis of the target response will be done by NASA-MSFC. Grosch, Donald J. Marshall Space Flight Center SPACECRAFT SHIELDING; SPACE DEBRIS; HYPERVELOCITY IMPACT; PROJECTILES; ORBITAL LAUNCHING; DESIGN ANALYSIS; SHAPED CHARGES; DAMAGE; ALUMINUM...