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Träfflista för sökning "WFRF:(Vaccaro M) srt2:(1997-1999)"

Search: WFRF:(Vaccaro M) > (1997-1999)

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1.
  • Anderson, D., et al. (author)
  • Modulational instabilities within the thermal wave model description of high energy charged particle beam dynamics
  • 1999
  • In: Physics Letters A. - : Elsevier. - 0375-9601 .- 1873-2429. ; 258:4-6, s. 244-248
  • Journal article (peer-reviewed)abstract
    • Within the thermal wave model (TWM) description, an investigation was made of the longitudinal instability properties of a coasting high energy charged particle beam, where the interaction between the beam and its surroundings is characterized in terms of a complex impedance. The analysis is shown to correctly reproduce the characteristic features of the coherent instability as obtained previously by conventional techniques based on the Vlasov equation for the beam distribution. The results further validate the TWM approach as a consistent alternative description for analyzing the dynamics of high energy charged particle beams.
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2.
  • Galvin, J. M., et al. (author)
  • Warping CT scans from nontreatment to treatment position
  • 1997
  • In: Radiation oncology investigations (Print). - 1065-7541 .- 1520-6823. ; 5:4, s. 206-212
  • Journal article (peer-reviewed)abstract
    • This paper describes a cost-effective technique that optimally utilizes all available diagnostic studies for three-dimensional treatment planning. A simulator unit modified to produce cross-sectional images {(simulator-CT} unit) is used to create a reference data set with the patient in the treatment position. Registration software (qsh) brings other diagnostic studies into agreement with this reference data set. Two cases are presented as examples of the use of this technique. Registration of abdominal scans from the same patient demonstrates the warping of a nontreatment position study to the treatment position. The second case is based on paired data sets through the head, in which the diagnostic study was obtained by using a gantry tilt to follow the base of the skull and to avoid sections passing through the teeth. The registration software provides a method for combining diagnostic studies into a single "master" data set. The success of the transformation depends on the operator's ability to identify corresponding anatomic landmarks for different data sets and on the magnitude of the variation in the patient's position from one procedure to the next. Limitations in image quality and the number of cross-sections obtainable from a {simulator-CT} unit can be partially overcome by using the described technique. Thus, the information contained in nontreatment position diagnostic tests can be used accurately for treatment planning at limited cost.
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  • Result 1-2 of 2
Type of publication
journal article (2)
Type of content
peer-reviewed (2)
Author/Editor
Han, K. (1)
Maguire Jr., Gerald ... (1)
Cooper, J. (1)
Noz, Marilyn E. (1)
Reddy, David P. (1)
Anderson, D (1)
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Anders, Berntson (1)
Lisak, M. (1)
Fedele, R. (1)
Vaccaro, V. (1)
Johanson, S. (1)
Galvin, J. M. (1)
Vaccaro, T. (1)
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University
Royal Institute of Technology (1)
RISE (1)
Language
English (2)
Research subject (UKÄ/SCB)
Natural sciences (1)

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