An electrical current lead assembly for ramping a superconducting magnet
includes a vacuum vessel wall that has a first side exposed to an
atmospheric pressure and a second side exposed to a vacuum pressure. A
pool wall extends from the first side of the vacuum vessel wall and forms
a dam region. A first conductor is affixed to and sealingly penetrates
the vacuum vessel wall and has a first portion extending into the dam
region. A second conductor is affixed to and sealingly penetrates the
vacuum vessel wall and has a first portion extending into the dam region.
A superconducting magnet on the second side of the vacuum vessel wall has
a first low temperature superconducting (LTS) lead and a second LTS lead.
A first superconductor electrically connects the first conductor to the
first LTS lead, and a second superconductor electrically connecting the
second conductor to the second LTS lead.