High Energy Neutron Detector PDF Download
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Author: Clyde Edward Wiegand
Publisher:
ISBN:
Category : Neutron counters
Languages : en
Pages : 8
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Book Description
It is the purpose of this paper to describe a neutron detector suitable for monitoring a flux of neutrons whose energy is greater than about 50 Mev. Detection of the neutrons is accomplished by their ability to induce fission in heavy elements. Kelly and Wiegand studied the neutron fission of Bi, Pb, Ti, Hg, Au, and Pt at various neutron energies and the presently described counter is an application of this work.
Author: Clyde Edward Wiegand
Publisher:
ISBN:
Category : Neutron counters
Languages : en
Pages : 8
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Book Description
It is the purpose of this paper to describe a neutron detector suitable for monitoring a flux of neutrons whose energy is greater than about 50 Mev. Detection of the neutrons is accomplished by their ability to induce fission in heavy elements. Kelly and Wiegand studied the neutron fission of Bi, Pb, Ti, Hg, Au, and Pt at various neutron energies and the presently described counter is an application of this work.
Author: David S. F. Portree
Publisher:
ISBN:
Category : Space flight to Mars
Languages : en
Pages : 164
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Book Description
Author: Linda T. Elkins-Tanton
Publisher: Infobase Publishing
ISBN: 1438107269
Category : Astronomy
Languages : en
Pages : 225
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Book Description
Discusses the fundamental facts concerning this mysterious planet, including its mass, size, and atmosphere, as well as the various missions that helped planetary scientists document the geological history of Mars. This volume also describes Mars' seasons with their surface effects on the planet and how they have changed over time.
Author: William K. Hartmann
Publisher: Workman Publishing
ISBN: 9780761126065
Category : Science
Languages : en
Pages : 502
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Book Description
Utilizes a travel guide format to bring together recent scientific discoveries about Mars, describing such features as its dry riverbeds, huge volcano, possible ancient sea floor, and impact craters.
Author: National Research Council
Publisher: National Academies Press
ISBN: 030909724X
Category : Science
Languages : en
Pages : 166
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Book Description
Recent spacecraft and robotic probes to Mars have yielded data that are changing our understanding significantly about the possibility of existing or past life on that planet. Coupled with advances in biology and life-detection techniques, these developments place increasing importance on the need to protect Mars from contamination by Earth-borne organisms. To help with this effort, NASA requested that the NRC examine existing planetary protection measures for Mars and recommend changes and further research to improve such measures. This report discusses policies, requirements, and techniques to protect Mars from organisms originating on Earth that could interfere with scientific investigations. It provides recommendations on cleanliness and biological burden levels of Mars-bound spacecraft, methods to reach those levels, and research to reduce uncertainties in preventing forward contamination of Mars.
Author: Giuseppe Pezzella
Publisher: BoD – Books on Demand
ISBN: 1839623624
Category : Science
Languages : en
Pages : 194
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Book Description
More than 50 years after the Mariner 4 flyby on 15 July 1965, Mars still represents the next frontier of space explorations. Of particular focus nowadays is crewed missions to the red planet. Over three sections, this book explores missions to Mars, in situ operations, and human-rated missions. Chapters address elements of design and possible psychological effects related to human-rated missions. The information contained herein will allow for the development of safe and efficient exploration missions to Mars.
Author: Rod Pyle
Publisher: Prometheus Books
ISBN: 1616145900
Category : Science
Languages : en
Pages : 455
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Book Description
In the next decade, NASA, by itself and in collaboration with the European Space Agency, is planning a minimum of four separate missions to Mars. Clearly, exciting times are ahead for Mars exploration. This is an insider’s look into the amazing projects now being developed here and abroad to visit the legendary red planet. Drawing on his contacts at NASA and the Jet Propulsion Laboratory, the author provides stunning insights into the history of Mars exploration and the difficulties and dangers of traveling there. After an entertaining survey of the human fascination with Mars over the centuries, the author offers an introduction to the geography, geology, and water processes of the planet. He then briefly describes the many successful missions by NASA and others to that distant world. But failure and frustration also get their due. As the author makes clear, going to Mars is not, and never will be, easy. Later in the book, he describes in detail what each upcoming mission will involve. In the second half of the book, he offers the reader a glimpse inside the world of Earth-based "Mars analogs," places on Earth where scientists are conducting research in hostile environments that are eerily "Martian." Finally, he constructs a probable scenario of a crewed expedition to Mars, so that readers can see how earlier robotic missions and human Earth simulations will fit together. All this is punctuated by numerous firsthand interviews with some of the finest Mars explorers of our day, including Stephen Squyres (Mars Exploration Rover), Bruce Murray (former director of the Jet Propulsion Laboratory), and Peter Smith (chief of the Mars Phoenix Lander and the upcoming OSIRIS-REx missions). These stellar individuals give us an insider’s view of the difficulties and rewards of roaming the red planet. The author’s infectious enthusiasm and firsthand knowledge of the international space industry combine to make a uniquely appealing and accessible book about Mars.
Author: Arthur C. Clarke
Publisher: Penguin
ISBN: 0143111574
Category : Fiction
Languages : en
Pages : 258
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Book Description
A deluxe hardcover edition of the wondrous space adventure that is the basis for Stanley Kubrick’s Oscar-winning film—now celebrating its 50th anniversary Part of Penguin Galaxy, a collectible series of six sci-fi/fantasy classics, featuring a series introduction by Neil Gaiman Winner of the AIGA + Design Observer 50 Books | 50 Covers competition Written when landing on the moon was still a dream, 2001: A Space Odyssey is a science-fiction classic that has changed the way we look at the stars—and ourselves. On the moon, an enigma is uncovered. So great are the implications that, for the first time, men are sent deep into our solar system. But before they can reach their destination, things begin to go very wrong. From the savannas of Africa at the dawn of mankind to the rings of Saturn at the turn of the 21st century, Arthur C. Clarke takes us on a journey unlike any other. Brilliant, compulsive, and prophetic, and the basis for the immensely influential Stanley Kubrick film, 2001: A Space Odyssey tackles the enduring theme of man’s—and technology’s—place in the universe and lives on as a landmark achievement in storytelling. Penguin Galaxy Six of our greatest masterworks of science fiction and fantasy, in dazzling collector-worthy hardcover editions, and featuring a series introduction by #1 New York Times bestselling author Neil Gaiman, Penguin Galaxy represents a constellation of achievement in visionary fiction, lighting the way toward our knowledge of the universe, and of ourselves. From historical legends to mythic futures, monuments of world-building to mind-bending dystopias, these touchstones of human invention and storytelling ingenuity have transported millions of readers to distant realms, and will continue for generations to chart the frontiers of the imagination. The Once and Future King by T. H. White Stranger in a Strange Land by Robert A. Heinlein Dune by Frank Herbert 2001: A Space Odyssey by Arthur C. Clarke The Left Hand of Darkness by Ursula K. Le Guin Neuromancer by William Gibson For more than seventy years, Penguin has been the leading publisher of classic literature in the English-speaking world. With more than 1,700 titles, Penguin Classics represents a global bookshelf of the best works throughout history and across genres and disciplines. Readers trust the series to provide authoritative texts enhanced by introductions and notes by distinguished scholars and contemporary authors, as well as up-to-date translations by award-winning translators.
Author: United States. Congress. House. Committee on Appropriations. Subcommittee on Commerce, Justice, Science, and Related Agencies
Publisher:
ISBN:
Category : Administrative agencies
Languages : en
Pages : 1180
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Book Description
Author: Bernard Henin
Publisher: Springer Nature
ISBN: 3030904997
Category : Science
Languages : en
Pages : 294
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Book Description
As we speak, stunning new snapshots of our Solar System are being transmitted to Earth by a fleet of space probes, landers, and rovers. Yet nowadays, it is all too easy to take such images for granted amidst the deluge of competing visuals we scroll through every day. To truly understand the value of these incredible space photos, we first need to understand the tools that made them possible. This is the story of imaging instruments in space, detailing all the technological missteps and marvels that have allowed us to view planetary bodies like never before. From the rudimentary cameras launched in the 1950’s to the cutting-edge imaging instruments onboard the Mars Perseverance rover, this book covers more than 100 imaging systems sent aboard various spacecraft to explore near and distant planetary bodies. Featured within are some of the most striking images ever received by these pioneering instruments, including Voyager’s Pale Blue Dot, Apollo’s Blue Marble, Venera’s images from the surface of Venus, Huygens’ images of Titan, New Horizon’s images of Pluto and Arrokoth, and much more. Along the way, you will learn about advancements in data transmission, digitization, citizen science, and other fields that revolutionized space imaging, helping us peer farther and more clearly across the Solar System.
