000			04290cam a2200421Ki 4500
001			on1239727225
003			OCoLC
005			20240726104842.0
008			210225t20212021dcuao o 000 0 eng d
040			_aDID _beng _erda _cDID _dOCLCO _dOCLCF _dYDX _dEBLCP _dNT
020			_a9780309684804
020			_a9780309684811 _q((electronic)l(electronic)ctronic)
020			_a9780309684835 _q((electronic)l(electronic)ctronic)
043			_azma----
050	0	4	_aTL782 _b.S633 2021
049			_aMAIN
245	1	0	_aSpace nuclear propulsion for human mars exploration.
300			_a1 online resource (xii, 92 pages) : _bcolor illustrations, color photographs
336			_atext _btxt _2rdacontent
337			_acomputer _bc _2rdamedia
338			_aonline resource _bcr _2rdacarrier
347			_adata file _2rda
490	1		_aConsensus study reports
500			_a"Prepublication copy - subject to further editorial correction"--Cover.
504			_a1
505	0	0	_aExecutive summary. -- _t1. Introduction and baseline mission requirements. -- _tIntroduction. -- _tBaseline mission to Mars: crewed opposition class missions. -- _tPropulsion system requirements. -- _tCargo missions. -- _tSummary. -- _t2. Nuclear thermal propulsion. -- _tSystem concept. -- _tHistorical overview. -- _tState of the art. -- _tTechnology requirements, risks, and options. -- _tTesting, editing, and simulation. -- _tDevelopment and demonstration roadmap. -- _tSummary. -- _t3. Nuclear electric propulsion. -- _tSystem concept. -- _tHistorical overview. -- _tState of the art. -- _tTechnology requirements, risks, and options. -- _tTesting, modeling, and simulation. -- _tDevelopment and demonstration roadmap. -- _tSummary. -- _t4. System and programmatic issues. -- _tNTP and NEP are different technologies. -- _tDevelopments common to both NTP and NEP systems. -- _tHEU versus HALEU. -- _tIndustrial base. -- _tLessons learned from the history of developing space nuclear systems. -- _tKey technical risks. -- _tProgrammatics. -- _t5. Mission applications. -- _tScience missions. -- _tPotential for higher performance space nuclear propulsion systems. -- _tSurface power use of NEP reactors. -- _tSynergies with national security missions. -- _tSynergies with terrestrial nuclear systems. -- _tAppendices.
520	0		_aIn 2020, the National Academies of Sciences, Engineering, and Medicine convened the ad hoc Space Nuclear Propulsion Technologies Committee to identify primary technical and programmatic challenges, merits, and risks for maturing space nuclear propulsion technologies of interest to a future human Mars exploration mission. Through interactions with experts from across the space propulsion community, the committee assessed the present state of the art, potential development path, and key risks for (1) a nuclear thermal propulsion (NTP) system designed to produce a specific impulse1 of at least 900 s and (2) a nuclear electric propulsion (NEP) system with at least 1 megawatt of electric (MWe) power and a mass-to-power ratio that is substantially lower than the current state of the art. As requested by NASA, each system was assessed with regard to its ability to support a particular baseline mission--an opposition-class human exploration mission to Mars with a 2039 launch date.2,3 For both NEP and NTP systems, efforts to mature the requisite technology and mitigate key technical risks were integrated into a top-level development and demonstration roadmap. Infusion of technology results, expertise, and synergy with other government programs and missions was also examined.
530			_a2 _ub
536			_a"This activity was supported by Contract No. NNH16CD01B/80HQTR20F0059 with the National Aeronautics and Space Administration."
650		0	_aSpace vehicles _xPropulsion systems _xTechnological innovations.
650		0	_aNuclear propulsion.
655		1	_aElectronic Books.
710	2		_aNational Academies of Sciences, Engineering, and Medicine (U.S.)
856	4	0	_zClick to access digital title | log in using your CIU ID number and my.ciu.edu password. _uhttpss://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=3024813&site=eds-live&custid=s3260518
942			_cOB _D _eEB _hTL _m2021 _QOL _R _x _8NFIC _2LOC
994			_a92 _bNT
999			_c80511 _d80511
902			_a1 _bCynthia Snell _c1 _dCynthia Snell