The DARHT-II-DC Final Focus Solenoid

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The baseline DARHT2 external beam uses a pulsed solenoid final focus lens. The design of this lens was presented at TOS2 and has been considered as the final focus lens in all of the Livermore beamlines for DARHT2. In this note, we consider a new alternative DC final focus solenoid. A crude comparison between the parameters of these two designs is given in table 1. The small spot size required by the radiography and the small drift distance available between the last magnetic focusing element and the final focus solenoid imposed by the close proximity between the DARHT 2 building ... continued below

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2,900 Kilobytes pages

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Paul, A.C. March 6, 2000.

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Description

The baseline DARHT2 external beam uses a pulsed solenoid final focus lens. The design of this lens was presented at TOS2 and has been considered as the final focus lens in all of the Livermore beamlines for DARHT2. In this note, we consider a new alternative DC final focus solenoid. A crude comparison between the parameters of these two designs is given in table 1. The small spot size required by the radiography and the small drift distance available between the last magnetic focusing element and the final focus solenoid imposed by the close proximity between the DARHT 2 building and the DARHT 1 axis, implies a short focal length solenoid. This in turn requires that the final focus solenoid mount inside the re-entrant cavity of the containment vessel in order to accommodate the 0.9 meter conjugate: figure 1. The ID of this cavity is 13.88 inches (35.25 cm).

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2,900 Kilobytes pages

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  • Other Information: PBD: 6 Mar 2000

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  • Report No.: UCRL-ID-138090
  • Grant Number: W-7405-Eng-48
  • DOI: 10.2172/792647 | External Link
  • Office of Scientific & Technical Information Report Number: 792647
  • Archival Resource Key: ark:/67531/metadc742723

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Creation Date

  • March 6, 2000

Added to The UNT Digital Library

  • Oct. 19, 2015, 7:39 p.m.

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  • May 6, 2016, 2:20 p.m.

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Paul, A.C. The DARHT-II-DC Final Focus Solenoid, report, March 6, 2000; California. (digital.library.unt.edu/ark:/67531/metadc742723/: accessed August 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.