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Analysis of an adjustable field permanent magnet solenoid.

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Title: Analysis of an adjustable field permanent magnet solenoid.
Authors: Burris-Mog, T.1 trevorb@lanl.gov, Burns, M.1, Chavez, A.1, Schillig, J.1
Source: Nuclear Instruments & Methods in Physics Research Section A. Oct2017, Vol. 868, p66-72. 7p.
Subjects: Solenoids, Permanent magnets, Linear accelerators, Power resources, Torque
Abstract: A feasibility study has been performed on an adjustable-field permanent magnet (PM) solenoid concept in an effort to reduce the dependence that linear induction accelerators have on large direct current power supplies and associated cooling systems. The concept relies on the ability to reorient sections of the PMs and thus redirect their magnetization vector to either add to or subtract from the on-axis magnetic field. This study concentrated on the focal strengths and emittance growths for two different designs, both with 19 cm bore diameters extending 53 cm in length. The first design is expected to produce peak magnetic fields ranging from 260 to 900 G (0.026 to 0.09 T) while the second design is expected to produce peak magnetic fields ranging from 580 to 2100 G (0.058 to 0.21 T). Although the PM configuration generates a variable magnetic field and the torques acting on PMs within the assembly appear manageable, the emittance growth is larger than that of a DC solenoid. [ABSTRACT FROM AUTHOR]
Copyright of Nuclear Instruments & Methods in Physics Research Section A is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 124420591
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Analysis of an adjustable field permanent magnet solenoid.
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  Data: <searchLink fieldCode="JN" term="%22Nuclear+Instruments+%26+Methods+in+Physics+Research+Section+A%22">Nuclear Instruments & Methods in Physics Research Section A</searchLink>. Oct2017, Vol. 868, p66-72. 7p.
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  Data: <searchLink fieldCode="DE" term="%22Solenoids%22">Solenoids</searchLink><br /><searchLink fieldCode="DE" term="%22Permanent+magnets%22">Permanent magnets</searchLink><br /><searchLink fieldCode="DE" term="%22Linear+accelerators%22">Linear accelerators</searchLink><br /><searchLink fieldCode="DE" term="%22Power+resources%22">Power resources</searchLink><br /><searchLink fieldCode="DE" term="%22Torque%22">Torque</searchLink>
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  Data: A feasibility study has been performed on an adjustable-field permanent magnet (PM) solenoid concept in an effort to reduce the dependence that linear induction accelerators have on large direct current power supplies and associated cooling systems. The concept relies on the ability to reorient sections of the PMs and thus redirect their magnetization vector to either add to or subtract from the on-axis magnetic field. This study concentrated on the focal strengths and emittance growths for two different designs, both with 19 cm bore diameters extending 53 cm in length. The first design is expected to produce peak magnetic fields ranging from 260 to 900 G (0.026 to 0.09 T) while the second design is expected to produce peak magnetic fields ranging from 580 to 2100 G (0.058 to 0.21 T). Although the PM configuration generates a variable magnetic field and the torques acting on PMs within the assembly appear manageable, the emittance growth is larger than that of a DC solenoid. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Nuclear Instruments & Methods in Physics Research Section A is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1016/j.nima.2017.06.013
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 7
        StartPage: 66
    Subjects:
      – SubjectFull: Solenoids
        Type: general
      – SubjectFull: Permanent magnets
        Type: general
      – SubjectFull: Linear accelerators
        Type: general
      – SubjectFull: Power resources
        Type: general
      – SubjectFull: Torque
        Type: general
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      – TitleFull: Analysis of an adjustable field permanent magnet solenoid.
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            – D: 01
              M: 10
              Text: Oct2017
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              Y: 2017
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