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dc.contributor.advisorMaier, William B. II
dc.contributor.authorMorgan, Breckenridge S.
dc.dateJune, 1999
dc.date.accessioned2012-09-07T15:34:40Z
dc.date.available2012-09-07T15:34:40Z
dc.date.issued1999-06
dc.identifier.urihttp://hdl.handle.net/10945/13538
dc.description.abstractRadioactive ion beams (RIBs) of (69)As are currently needed for fundamental nuclear physics research and can be produced abundantly by proton bombardment of a liquid Ge target. In this thesis, we develop a series of highly pervious liquid target designs with mean diffusion paths several orders of magnitude less than traditional, pool-type, liquid targets. Experiments have been performed to identify materials (substrates) capable of suspending, through wetting, very thin layers of liquid Ge. Four candidate Ge-substrate target systems have been designed, and (69)As production may be significantly increased over previous targets. The target systems designed include liquid Ge coated onto an: (1) inclined W plane, (2) a long thin Mo wire birdsnest, (3) a SiC weave, and (4) SiC coated C foam. A universal Ta target holder coupling the target to an ion source has also been designed and features a cooled re-circulating baffle for testing of each of the above target concepts. The results of long-term heating tests on the Mo wire birdsnest show its lifetime to be less than 100 hours; however, future online tests of short duration will test (69)As production for the birdsnested target. Ge did not wet the SiC weave target. The methods and design formulations developed in this thesis are applicable to a variety of RIB species produced from liquid targets.en_US
dc.description.urihttp://archive.org/details/highlyperviousli1094513538
dc.format.extentxviii, 71 p.;28 cm.en_US
dc.language.isoen_US
dc.publisherMonterey, California. Naval Postgraduate Schoolen_US
dc.rightsApproved for public release, distribution unlimited.en_US
dc.titleHighly pervious liquid metal target systems for radioactive ION beam generationen_US
dc.typeThesisen_US
dc.description.serviceU.S. Navy (U.S.N.) author.en_US
etd.thesisdegree.nameM.S. in Applied Physicsen_US
etd.thesisdegree.levelMastersen_US
etd.thesisdegree.disciplineApplied Physicsen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US


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