Houghton University Digital Archives

The Houghton University Archives serves the students, faculty, staff, administration and alumni of Houghton University by collecting and maintaining a historical record of the University story. The Archives collects, organizes, preserves, and makes accessible materials critical to understanding the historic, present, and future mission of Houghton University and to nurturing identity, purpose, and unity in the University community. This DSpace site provides access to some of the Houghton University's digital collections.

Communities in DSpace

Select a community to browse its collections.

Now showing 1 - 5 of 8

Recent Submissions

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    A NEW EVAPORATOR FOR THE LITHIUM DEPOSITION CHAMBER AT HOUGHTON UNIVERSITY
    (Houghton University, 2026-05-06) Knight, Asher
    Light ion nuclear reaction experiments using ultra-fast high-power lasers performed at the Lab for Laser Energetics (LLE) use thin lithium films to measure nuclear cross sections using Inertial Confinement Fusion (ICF) or Target Normal Sheath Acceleration (TNSA). To make these films, a new lithium evaporator system has been developed at Houghton University. The new evaporator is easier to install, separates the two evaporator boats in order to evaporate one material at time for multilayer targets, uses a linear feedthrough to position the substrates, and incorporates a deposition rate monitor to control the layer thickness. Because lithium reacts with air, the new design allows the creation of a protective layer to coat the lithium film, and the deposition chamber is inside of an argon glove box.
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    THE EFFECTS OF RADIATION ESCAPE ON ACCURACY AND PRECISION IN ISOTOPIC COMPOSITION DETERMINATION OF URANIUM AND PLUTONIUM WITH DECAY ENERGY SPECTROSCOPY
    (Houghton University, 2024-05-03) Ockrin, Timothy R.
    Decay Energy Spectroscopy (DES) results in high energy resolution (1-5 keV @ 5 MeV) spectra of decay energies where the energy of each decay is measured as a single event as opposed to individual measurements of each decay particle. In order to accomplish this, the measured source is not external to the absorber, but embedded within it. DES can be used for nuclear safeguards, metrology, and medical isotope development, but measurements are affected by incomplete energy capture occurring when decay particles escape the absorber. In order to reduce escape likelihood, absorbers can be capped with a layer of gold. Geant4, a Monte-Carlo simulation software capable of handling energy transport between particles, is used to simulate DES measurements with varying thicknesses of absorber cap. Analysis of these spectra shows that the biggest benefit of capping can be realized by adding 5 μm of gold to all dimensions, reducing the escape of most alpha-decaying uranium and plutonium radionuclides by an order of magnitude.
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    Trapping and detecting trace radioactive isotopes produced in ICF implosions
    (Houghton College, 2021-05-29) Yuly, Mark; Padalino, Stephen; Brown, Adam; Christensen, Micah; Condie, Micah
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    Houghton Wind Ensemble
    (Houghton College, 2019-11-01) Houghton College EMA Studios
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    Judy Congdon, Organ
    (Houghton College, 2019-09-23) Houghton College EMA Studios