Cryogenic Design and Thermal Analysis of the CURIE CryoTrap

dc.contributor.advisorKoeth, Timothy Wen_US
dc.contributor.authorOsborn, Rebecca Carolineen_US
dc.contributor.departmentChemical Physicsen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2022-06-22T05:42:31Z
dc.date.available2022-06-22T05:42:31Z
dc.date.issued2022en_US
dc.description.abstractThe decay rates of electron capture (EC) radioisotopes, such as 7Be, are demonstrativelysusceptible to alteration with change to the electron orbital structure [1] [2] [3] [4]. The Cryogenic Ultra-high vacuum Radioactive Isotope Experiment (CURIE) Project aims to isolate the various charge states of the low-Z radioisotope 7Be stably to perform novel half-life measurements. To achieve this, the system must be cooled to 4K to reach extreme high vacuum (XHV) conditions in excess of 10E−15 mbar and to ensure single ion resolution detection. The cryogenic design which achieves this is presented here. The design consists of the actively cooled 45K radiation shield, and the 4K stage which houses the Penning trap. The 4K stage is brought to XHV and maintained at these pressures through the design of a rotary “cryovalve”. This thesis details the entire apparatus, the heat loads incident on both stages through simulation, and outlines an experimental method for testing the “cryovalve”.en_US
dc.identifierhttps://doi.org/10.13016/3xk9-q2qf
dc.identifier.urihttp://hdl.handle.net/1903/29030
dc.language.isoenen_US
dc.subject.pqcontrolledNuclear physics and radiationen_US
dc.subject.pqcontrolledMechanical engineeringen_US
dc.subject.pquncontrolledCryogenicen_US
dc.subject.pquncontrolledCryovalveen_US
dc.subject.pquncontrolledExtreme High Vacuumen_US
dc.subject.pquncontrolledPenning trapen_US
dc.subject.pquncontrolledRadioisotopeen_US
dc.titleCryogenic Design and Thermal Analysis of the CURIE CryoTrapen_US
dc.typeThesisen_US

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