2017
DOI: 10.1088/1757-899x/278/1/012177
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The potential role of cryogenics in insertion magnets

Abstract: Abstract. Most of the insertion magnets that are used for storage rings and free-electron lasers are room temperature permanent magnets. Superconducting wiggler and undulator magnets have been built, but their performance has been limited by the engineering current density and stability of the coils. Superconducting undulators must have a small gap and cell length, which can be a hindrance even when the beam vacuum chamber is at room temperature. Beam heating is also an issue. To control, the heat leak at low … Show more

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Cited by 2 publications
(1 citation statement)
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“…In both cases the devices being cooled are nearly the same type of device. A single insertion device (wiggler or undulator), it makes sense to use up to three coolers to cool it, whether it be superconducting or cold neodymium-iron magnets [66]. When one has a free-electron laser one has many insertion devices in a row that go long distances, large refrigerators must be used.…”
Section: Concluding Commentsmentioning
confidence: 99%
“…In both cases the devices being cooled are nearly the same type of device. A single insertion device (wiggler or undulator), it makes sense to use up to three coolers to cool it, whether it be superconducting or cold neodymium-iron magnets [66]. When one has a free-electron laser one has many insertion devices in a row that go long distances, large refrigerators must be used.…”
Section: Concluding Commentsmentioning
confidence: 99%