MARC record from Internet Archive

LEADER: 03272nam 2200505Ia 4500
001 ocn636108078
003 OCoLC
005 20100602160742.0
008 100602s1969 caua bm f000 0 eng d
007 cr b|||||a||||
040 $aAD#$cAD#
037 $aAD0704791$bDTI
043 $an-us---
049 $aAD#A
100 1 $aSager, David Alan.
245 12 $aA study of reactivity changes in the AGN-20l reactor using perturbation theory$h[electronic resource] /$cDavid Alan Sager.
260 $aMonterey, California :$bNaval Postgraduate School,$c1969.
300 $a92 p. :$bill. ;$c28 cm.
500 $aThesis Advisor(s): Marto, P. J.
500 $a"June 1969."
500 $aDescription based on title screen as viewed on June 2, 2010.
500 $aDTIC Descriptor(s): (Research Reactors, Reactor Reactivity), Reactor Cores, Fuel Burn Up, Fission Product Poisoning, Polyethylene Plastics, Perturbation Theory, Computer Programs, Theses.
500 $aAuthor(s) subject terms: Perturbation, Polyethylene, Fermi Age, Extrapolation, Neutron Temperature, Samarium.
502 $aThesis (M.S. in Mechanical Engineering)--Naval Postgraduate School, June 1069.
504 $aIncludes bibliographical references (p. 88).
506 $a"Approved for public release, distribution unlimited"--Cover.
520 $aThe effects of fuel burnup, fission product poisoning, and hydrogen moderator density variation on reactivity in the AGN-201 reactor are considered. A modified one-group perturbation theory is developed and applied to changes in parameters resulting from a change in hydrogen moderator density. An equation for the reactivity change is obtained for three models: a bare cylindrical core, a bare core using extrapolated dimensions, and a reflected core. These three equations are then used to predict values of the reactivity increase resulting from interchanging in a new 3/4 inch thick fuel disk with comparable fuel disks presently in the core. The results obtained by a digital computer solution of the reactivity equations reveal that the increase in reactivity varies from 0.4392 to 0.7707%, depending upon the core model and position of the old disk within the core. Because the license of the Naval Postgraduate School does not permit a value of excess reactivity above 0.40%, it is concluded that a simple interchange of disks in this manner would produce too large a value of excess reactivity.
530 $aAlso available in print.
538 $aMode of access: World Wide Web.
538 $aSystem requirements: Adobe Acrobat Reader.
590 $aUS Navy (USN) author.
592 $adaw/ record upgraded 6/2/10
650 0 $aPolyethylene.
650 0 $aNuclear reactors$xCores.
650 0 $aExtrapolation.
650 0 $aSamarium.
650 0 $aPerturbation (Mathematics)
650 0 $aComputer programs.
710 2 $aNaval Postgraduate School (U.S.)
856 41 $uhttp://edocs.nps.edu/npspubs/scholarly/theses/1969/Jun/69Jun%5FSager.pdf$z(3.11 MB)
949 $aELECTRONIC RESOURCE$wASIS$c1$lELECTRONIC$rN$sY$tTHESIS$xNPSPUB
994 $aC0$bAD#
926 $aNPS-LIB$bELECTRONIC$cELECTRONIC RESOURCES$dTHESIS$f1
926 $aNPS-LIB$bTHESIS$cS1522$dTHESIS$f1
926 $aNPS-LIB$bDIGIPROJ$cS1522$dTHESIS$eNEVER$f2