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ATLAS-I (Air Force Weapons Lab Transmission-Line Aircraft Simulator), better known as Trestle, was the codename for a unique electromagnetic pulse (EMP) generation and testing apparatus built between 1972 and 1980 during the Cold War at Sandia National Laboratories near Kirtland Air Force Base in Albuquerque, New Mexico.〔Giri, D.V. Ph.D. ("The notes of Dr. Carl E. Baum" ). Retrieved August 8, 2011.〕 ATLAS-I was the largest NNEMP (Non-Nuclear Electromagnetic Pulse) generator in the world, designed to test the radiation hardening of strategic aircraft systems against EMP pulses from nuclear warfare. Built at a cost of $60 million, it was composed of two parts: a powerful Marx generator capable of simulating the electromagnetic pulse effects of a high-altitude nuclear explosion (HANE) of the type expected during a nuclear war, and a giant wooden trestle built in a bowl-shaped arroyo, designed to elevate the test aircraft above ground interference and orient it below the pulse in a similar manner to what would be seen in mid-air.〔Yang, F.C. Lee, K.S.H. (July 1980). ("Analytical representation of ATLAS I (Trestle) Fields" ) (PDF). University of New Mexico. Retrieved August 8, 2011.〕 Trestle is the world's largest structure composed entirely of wood and glue laminate.〔("U.S. Nuclear Weapons Cost Study Project: The Trestle Electromagnetic Pulse Simulator" ). Brookings Institution. Retrieved 8/8/2011.〕 ==EMP generator== The Marx generator providing the EMP pulse generated 200 gigawatts of electromagnetic flux at an electrical potential of 10 megavolts,〔 powerful enough to reliably reproduce (at short range) the deleterious effects of a thermonuclear detonation on electronic circuitry as created by such examples as the HARDTACK I, ARGUS and DOMINIC I (Operation Fishbowl) high altitude nuclear tests. The generator itself was mounted at the end of a long, diagonal wooden scaffold structure, located above and to one side of the aircraft platform, with the primary receiving tower located at equal elevation on the other side of the arroyo. Due to their higher flight altitude and nuclear payload, Strategic Air Command bombers were the primary object of the tests, but fighters, transport aircraft and even missiles were also tested for EMP hardness on Trestle. In addition to electronics survivability tests, numerous sensors located beneath and to the sides of the aircraft would gather additional data on the airframe's EMP permeability to be used in design considerations for future Cold War aircraft. The advances made in EMP generation technology by Sandia during the operation of Trestle greatly assisted in the construction of the much more powerful 40 megavolt, 50 terawatt (50,000 gigawatt) Z Machine at Sandia during the 1990s. Technological advances during the 2000s have since boosted this output to 290 terawatts (290,000 gigawatts), high enough to actually study nuclear fusion at the point of detonation.〔("Another dramatic climb toward fusion conditions for Sandia Z accelerator" ). Sandia National Laboratories. Press release. March 2, 1998. Retrieved August 8, 2011.〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「ATLAS-I」の詳細全文を読む スポンサード リンク
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