Magnetic control of supersonic beams : magnetic slowing to isotope separation

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dc.contributor.advisor Raizen , Mark G .
dc.contributor.committeeMember Shubeita , George T .
dc.creator Chavez , Isaac
dc.date.accessioned 2011 -01 -03T20 :52 :22Z
dc.date.accessioned 2011 -01 -03T20 :52 :54Z
dc.date.accessioned 2014 -02 -19T22 :48 :37Z
dc.date.available 2011 -01 -03T20 :52 :22Z
dc.date.available 2011 -01 -03T20 :52 :54Z
dc.date.available 2014 -02 -19T22 :48 :37Z
dc.date.created 2010 -08
dc.date.issued 2011 -01 -03
dc.date.submitted August 2010
dc.identifier.uri http : / /hdl .handle .net /2152 /ETD -UT -2010 -08 -1799
dc.description.abstract General control of atoms and molecules has long been a goal for atomic physicists and physical chemists . Techniques such as laser cooling have been a huge breakthrough in studying ultra cold atoms and BECs . Although laser cooling has been a remarkable tool , it is limited to small group of atoms on the periodic table . A general technique to control and manipulate the entire periodic table has been out of reach until now . In this thesis I describe two methods of general control of atoms in the contexts of stopping supersonic beams and of isotope separation . Both these methods take advantage of high flux supersonic beams and the fact that every atom has a magnetic moment in the ground state or a long -lived excited state which can be manipulated using magnetic field gradients . The first method uses a series of pulsed electomagnetic coils to slow and stop a supersonic beam of paramagnetic atoms and molecules . We have demonstrated the slowing of metastable neon and molecular oxygen using 64 coils from 446 .5 m /s to 55 .8 m /s for metastable neon , and from 389 m /s to 83 m /s for molecular oxygen respectively . The second method is a novel and efficient approach to isotope separation which utilizes the concept of Maxwell's Demon . We call this technique Single -Photon Atomic Sorting as it is closely related to Single -Photon Cooling , a cooling technique developed in our laboratory . Our method uses a laser beam to change the magnetic moment to mass ratio in such a way that the desired isotopes are guided through a multi -pole magnetic field and collected . We show simulation results for various test cases which highlight the general applicability of this method .
dc.format.mimetype application /pdf
dc.language.iso eng
dc.subject Magnetic slowing
dc.subject Supersonic beams
dc.subject Isotope separation
dc.subject Atoms
dc.title Magnetic control of supersonic beams : magnetic slowing to isotope separation
dc.description.department Physics
dc.type.genre thesis *
dc.type.material text *
thesis.degree.name Master of Arts
thesis.degree.level Masters
thesis.degree.discipline Physics
thesis.degree.grantor University of Texas at Austin
thesis.degree.department Physics
dc.date.updated 2011 -01 -03T20 :52 :55Z

Citation

Magnetic control of supersonic beams : magnetic slowing to isotope separation. Master's thesis, University of Texas at Austin. Available electronically from http : / /hdl .handle .net /2152 /ETD -UT -2010 -08 -1799 .

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