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Cold trap requirements for PHTS and IHTS sodium purification

Description: Cold trap requirements for the Primary Heat Transfer System (PHTS) and the Intermediate Heat Transfer System (IHTS) are defined. The bases for these requirements are (1) maintaining concentrations of oxygen and hydrogen within given limits, (2) controlling the transport of tritium by coprecipitating it in cold traps together with hydrogen, and (3) providing the necessary volume capacity for collecting impurities. It is concluded that the 60 gpm, FFTF Type I, NaK cooled, cold trap will satisfy t… more
Date: May 31, 1974
Creator: Sletten, H.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Moessbauer-Like Absorption and Scattering of Light From Confined Crystalline Ionic Systems

Description: In recent years, the prediction of numerical simulations of the unique shell-structure in the crystallization of confined, cold ionic systems, has been confirmed in ion traps though it has not yet been observed in storage rings. These systems of up to tens of thousands of ions, constitute the sparsest known form of condensed matter (10{sup 7}--10{sup 9} ions/cm{sup 3}). The method for producing such systems involves cooling to mK temperatures using ``laser cooling``: The resonant absorption and… more
Date: December 31, 1991
Creator: Schiffer, J. P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Unraveling the Timing of Fluid Migration and Trap Formation in the Brooks Range Foothills: A Key to Discovering Hydrocarbons

Description: Naturally occurring fractures can play a key role in the evolution and producibility of a hydrocarbon accumulation. Understanding the evolution of fractures in the Brooks Range/Colville basin system of northern Alaska is critical to developing a better working model of the hydrocarbon potential of the region. This study addressed this problem by collecting detailed and regional data on fracture distribution and character, structural geometry, temperature, the timing of deformation along the Bro… more
Date: December 31, 2008
Creator: Hanks, Catherine L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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PHYSICS DIVISION SUMMARY REPORT FOR APRIL-MAY 1960

Description: A new method for the determination of the spins of neutron resonances from capture gamma-ray spectra is described. A study of the resonance levels of Na/sup 24/ was completed up to 860 kev. The levels were analyzed up to 630 kev and the distribution of the angular momenta, neutron widths, and level spacings is given. The study of the levels of F/sup 20/, and of lithium (present in the LiF sample), was started wd data were obtained up to 280 kev. The "full" condition of a liquid-nitrogen cold tr… more
Date: October 31, 1960
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Quantum computation with ``hot`` trapped ions

Description: The authors describe two methods that have been proposed to circumvent the problem of heating by external electromagnetic fields in ion trap quantum computers. Firstly the higher order modes of ion oscillation (i.e., modes other than the center-of-mass mode) have much slower heating rates, and can therefore be employed as a reliable quantum information bus. Secondly they discuss a recently proposed method combining adiabatic passage and a number-state dependent phase shift which allows quantum … more
Date: December 31, 1998
Creator: James, D.F.V.; Schneider, S. & Milburn, G.J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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The circular RFQ storage ring

Description: This paper presents a novel idea of storage ring for the accumulation of intense beams of light and heavy ions at low energy. The new concept is a natural development of the combined features used in a conventional storage ring and an ion trap, and is basically a linear RFQ bend on itself. In summary the advantages are: smaller beam dimensions, higher beam intensity, and a more compact storage device.
Date: December 31, 1998
Creator: Ruggiero, Alessandro G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Fractal interrelationships in field and seismic data. Quarterly report, September 21 - December 31, 1995

Description: Under task 1 contour irregularities traced over both study areas in the previous quarter were scanned into the computer and digitized at a 30 meter interval. Patters mapped in both the Granny Creek and Middle Mountain field areas are presented in Figures 1 and 2 respectively. One of the hypotheses of this research project is that contour irregularities must be controlled by a combination of sedimentation features, lithologic variation, and local structure and fracture distribution. The most pro… more
Date: December 31, 1995
Creator: Wilson, T.H.; Dominic, J. & Halverson, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Coupling an optical trap to a mass separator

Description: The efficient coupling of a magneto-optical trap to a mass separator is being developed to undertake high-precision electroweak interaction measurements in a series of radioisotopes. The use of ion implantation and subsequent heated-foil release is being pursued as a suitable way of introducing radioactive samples into the ultrahigh vacuum region of an optical trap without gas loading. This paper discusses the layout of the mass separator,the coupling to a magneto- optical trap, and the implant… more
Date: December 31, 1996
Creator: Chamberlin, E. P.; Sandberg, V. D.; Tupa, D.; Vieira, D. J.; Zhao, X. X.; Guckert, R. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Prospects for quantum computation with trapped ions

Description: Over the past decade information theory has been generalized to allow binary data to be represented by two-state quantum mechanical systems. (A single two-level system has come to be known as a qubit in this context.) The additional freedom introduced into information physics with quantum systems has opened up a variety of capabilities that go well beyond those of conventional information. For example, quantum cryptography allows two parties to generate a secret key even in the presence of eave… more
Date: December 31, 1997
Creator: Hughes, R. J. & James, D. F. V.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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