· 1961
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This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
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Magic. It hides under our unsuspecting noses, and swirls all around us. In STREET MAGIC, fifteen urban fantasy authors invite you to walk with one foot in the mundane world, and one in... another world. And if what you see there seems a little out of the ordinary, it's probably magic. Contains stories by Meyari McFarland, Mike Jack Stoumbos, Douglas Smith, J.L. Madore, Travis Heermann, Jessica Guernsey, Jena Rey, Taylen Carver, Tina Back, C.E. Barnes, Leigh Saunders, Sam Robb, Danielle Harward, Tami Veldura, and Joseph Borrelli. Edited by Lyn Worthen
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Permanent and transient radiation effects have been studied in Plessey pigtailed, high radiance GaAs and GaAlAs LEDs using neutron, gamma ray and X-ray sources. The radiation-induced source of degradation in these devices was determined by also examining both bare, unpigtailed LEDs and separate samples of the Corning fibers used as pigtails. No transient effects were observed in the unpigtailed LEDs during either pulsed neutron or X-ray exposure. In contrast, the Corning doped silica fibers exhibited strong transient attenuation following pulsed X-ray bombardment. Permanent neutron damage in these pigtailed LEDs consisted essentially of light output degradation in the LED itself. While this effect was significant, it is important to note that these LEDs have exceptionally good neutron tolerance in that their average light output degrades by only a factor of 1.7 at fluences near 1 x 10(to the 14th power)n/sq cm. Permanent gamma ray effects due to a Co-60 irradiation of 1 megared were restricted to a small increase in attenuation in the fiber. The two primary radiation effects were then transient attenuation in the fiber pigtail and permanent neutron-induced degradation of the LED.