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008			121016s2012 dcuab o 000 0 eng c
020			_a9780309216104
020			_a0309216109
040			_aDID _dCDS _dSipr
041			_aeng
110	2		_aCommittee on an Assessment of Concepts and Systems for U.S. Boost-Phase Missile Defense in Comparison to Other Alternatives
245	0	0	_aMaking sense of ballistic missile defense : _ban assessment of concepts and systems for U.S. boost-phase missile defense in comparison to other alternatives _h[electronic resource]
256			_aText
260			_aWashington, DC : _bNational Academies Press, _c2012
300			_a240 p. in various pagings : _bcol. ill., col. maps
500			_aSIP1210
500			_aE-book
500			_aPrepublication copy
500			_aTitle from PDF cover screen (viewed on Sept. 19, 2012)
504			_aIncludes bibliographical references.
505	0		_aSummary. -- Introduction. -- U.S. boost-phase defense. -- Alternatives to U.S. boost-phase defense. -- Comparison of utility, maturity, and cost effectiveness. -- Recommended path forward. -- Appendixes.
520			_aCurrent U.S. policy is to deploy as soon as technologically possible an effective National Missile Defense system capable of defending the territory of the United States against limited ballistic attack, whether accidental, unauthorized, or deliberate. The Missile Defense Agency (MDA) of the U.S. Department of Defense (DOD) plays a central role in supporting the Secretary of Defense (SECDEF) in developing and fielding an integrated, layered, ballistic missile defense system. Ballistic missile defense (BMD) considers engaging threats during the boost phase, the midcourse phase, and the terminal phase of flight. Boost-phase defense encompasses engagements during the time period when the threat booster is still accelerating. The midcourse defense layer can be divided into (1) ascent phase, when the threat system is engaged prior to apogee, and (2) descent phase, when intercept occurs after apogee. The term "early intercept" is sometimes used to describe intercept after boost in the initial portions of the ascent phase of the threat system before apogee. Finally, terminal defense refers to engagements as and after warheads reenter the atmosphere and become subject to drag and reentry heating. The committee examined portions of the current Ground-Based Midcourse Defense (GMD) system, the Aegis, Patriot (PAC-3), and Terminal High-Altitude Area Defense (THAAD) systems currently being fielded, as well as their proposed upgrades and all boostphase missile defense systems that had been considered, including the Airborne Laser (ABL), the Kinetic Energy Interceptor (KEI), and other existing or contemplated boost-phase technology demonstrations (e.g., space-based interceptors and airborne interceptors launched from tactical air platforms). In addition, the committee examined the planned Phased Adaptive Approach (PAA), that is, the Aegis Ballistic Missile Defense system, with all variants of the standard missile-3 interceptor given its relevance to the non-boost systems identified in the terms of reference.
538			_aMode of access: World Wide Web.
538			_aPDF. System requirements: Adobe Acrobat Reader
650		7	_aBMD _xmissile defence _xmilitary strategy _zUSA
710	1		_aDivision on Engineering and Physical Science
710	1		_aNational Research Council, NRC
856	4	0	_uhttps://download.nap.edu/catalog.php?record_id=13189 _zView Electronic Book
942			_cEMON
999			_c77601 _d77601