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  • Cylindrical diffuser  (1)
  • LUNAR AND PLANETARY EXPLORATION  (1)
  • SPACE VEHICLES  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    A method for the construction of disposable cylindrical diffusing fibre optic tips for use in photodynamic therapy (1989)
    Springer
    Lasers in medical science 4 (1989), S. 229-235 
    Details
    ISSN: 1435-604X
    Keywords: Photodynamic therapy ; Cylindrical diffuser ; Interstitial treatment
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Physics , Technology
    Notes: Abstract A simple method for the manufacture of disposable, cylindrical, diffusing fibre tips is described. The method is suitable for plastic clad silica fibres with core diameters in the range 200–600μm. Light diffusing tips up to 40 mm in length have been constructed. The method is highly reproducible, construction is typically less than five minutes and the financial cost is negligible. The diffusers are highly efficient, delivering an amount of light at least equal to that transmitted by a plane cut fibre of the same core diameter. The uniformity of light emission along the diffuser can be modified to meet the requirements of any given treatment. The diffusers have been successfully used in interstitial photodynamic therapy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02032452
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    Paper (German National Licenses)
    Fulltext
  • 2
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    Unknown
    Anorthositic oceanic crust in the Archean Earth (1985)
    In:  Other Sources
    Details
    Publication Date: 2011-08-19
    Description: Ultrapure minerals separated from eclogite inclusions in kimberlites were analyzed for Sm, Nd, Sr, and oxygen isotopes and for major and trace elements. Clinopyroxene (cpx) and garnet (gnt) are the only primary mineral phases in these rocks, and mineral phases and their alteration products. The WR sub calc. is the reconstructed bulk composition excluding all the contamination influences. Two groups of eclogites: are distinguished: (1) type A Noritic-anorthositic eclogites; and (2) type B Ti-ferrogabbroic eclogites. The oxygen isotopes are primary mantle-derived features of these rocks and are not caused by posteruption processes, as they were measured on unaltered, clean mineral separates and show a correlation with REE pattern and Sr and Nd isotopes. It is suggested that the variation of the oxygen isotopes are caused by crustal-level fluid-rock interaction at relatively low temperature. It is shown that oxygen isotopes variation in MORB basalts caused by the hydrothermal system are in the same range as the observed oxygen isotope variation in eclogites. A model to explain the new set of data is proposed. It is thought that some of these eclogites might be emplaced into the upper lithosphere or lower crust at the time corresponding to their internal isochron age. The calculated WR composition was used to estimate model ages for these rocks.
    Keywords: LUNAR AND PLANETARY EXPLORATION
    Type: Lunar and Planetary Inst. Workshop on the Early Earth: The Interval from Accretion to the Older Archean; p 40-41
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    A Lightweight 6 1/2-ft Aeroshell for an Early Mars Probe Mission (1968)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Lightweight 6 1/2 ft sphere-cone honeycomb sandwich structure with elastomeric ablator for Mars probe mission
    Keywords: SPACE VEHICLES
    Type: NASA-CR-96994 , JPL-TR-32-1325
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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