Journal article Open Access

Low beta confinement in a Polywell modelled with conventional point cusp theories

Carr, Matthew; Gummersall, David; Cornish, Scott; Khachan, Joe

MARC21 XML Export

<?xml version='1.0' encoding='UTF-8'?>
<record xmlns="">
  <datafield tag="540" ind1=" " ind2=" ">
    <subfield code="a">Free for private use; right holder retains other rights, including distribution</subfield>
  <datafield tag="260" ind1=" " ind2=" ">
    <subfield code="c">2011-01-01</subfield>
  <controlfield tag="005">20200120173552.0</controlfield>
  <controlfield tag="001">1244053</controlfield>
  <datafield tag="909" ind1="C" ind2="O">
    <subfield code="p">openaire</subfield>
    <subfield code="o"></subfield>
  <datafield tag="520" ind1=" " ind2=" ">
    <subfield code="a">The magnetic field structure in a Polywell device is studied to understand both the physics underlying the electron confinement properties and its estimated performance compared to other cusped devices. Analytical expressions are presented for the magnetic field in addition to expressions for the point and line cusps as a function of device parameters. It is found that at small coil spacings it is possible for the point cusp losses to dominate over the line cusp losses, leading to longer overall electron confinement. The types of single particle trajectories that can occur are analysed in the context of the magnetic field structure which results in the ability to define two general classes of trajectories, separated by a critical flux surface. Finally, an expression for the single particle confinement time is proposed and subsequently compared with simulation.</subfield>
  <datafield tag="700" ind1=" " ind2=" ">
    <subfield code="a">Gummersall, David</subfield>
  <datafield tag="700" ind1=" " ind2=" ">
    <subfield code="a">Cornish, Scott</subfield>
  <datafield tag="700" ind1=" " ind2=" ">
    <subfield code="a">Khachan, Joe</subfield>
  <datafield tag="856" ind1="4" ind2=" ">
    <subfield code="s">2588912</subfield>
    <subfield code="z">md5:1b051ee877fa6a47258717996022713a</subfield>
    <subfield code="u"></subfield>
  <datafield tag="542" ind1=" " ind2=" ">
    <subfield code="l">open</subfield>
  <datafield tag="980" ind1=" " ind2=" ">
    <subfield code="a">publication</subfield>
    <subfield code="b">article</subfield>
  <datafield tag="100" ind1=" " ind2=" ">
    <subfield code="a">Carr, Matthew</subfield>
  <datafield tag="024" ind1=" " ind2=" ">
    <subfield code="a">10.1063/1.3655446</subfield>
    <subfield code="2">doi</subfield>
  <datafield tag="245" ind1=" " ind2=" ">
    <subfield code="a">Low beta confinement in a Polywell modelled with conventional point cusp theories</subfield>
  <datafield tag="650" ind1="1" ind2="7">
    <subfield code="a">cc-by</subfield>
    <subfield code="2"></subfield>
Views 463
Downloads 197
Data volume 510.0 MB
Unique views 459
Unique downloads 190


Cite as