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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:1
UID:UW-Physics-Event-4802
DTSTART:20180921T203000Z
DURATION:PT1H0M0S
DTSTAMP:20260307T054633Z
LAST-MODIFIED:20180914T171155Z
LOCATION:2241 Chamberlin Hall
SUMMARY:Small\, modular & economically attractive fusion enabled by hi
 gh-field superconductors\, Physics Department Colloquium\, Dennis Whyt
 e\, MIT
DESCRIPTION:The origin\, development and new opportunities of an accel
 erated strategy for magnetic fusion energy based on the high-field app
 roach are developed. This approach confinement devices are designed at
  the maximum possible value of vacuum magnetic field strength\, B. The
  integrated electrical\, mechanical and cooling engineering challenges
  of high-field large-bore electromagnets are described. These engineer
 ing challenges are confronted because of the profound science advantag
 es provided by high-B: high fusion power density\, ~B4\, in compact de
 vices\, thermonuclear plasmas with significant stability margin\, and\
 , in tokamaks\, access to higher plasma density. Two distinct magnetic
  fusion strategies were previously allowed: either compact\, cryogenic
 ally-cooled copper devices with Bcoil>20 T\, orlarge-volume\, Nb3Sn su
 perconductor device with Bcoil < 12 T. The second path was exclusively
  chosen ca. 2000 with the ITER construction decision. Yet since that d
 ecision\, a new opportunity has arisen: compact\, Rare Earth Barium Co
 pper Oxide (REBCO) superconductor-based devices with Bcoil > 20 T\; a 
 strategy that essentially combines the best components of the two prev
 ious strategies. This new strategy is materialized in the recently ann
 ounced SPARC project\, which looks to build a highly compact net energ
 y magnetic fusion device\, solely funded by the private sector. The sc
 ience and fusion energy development mission of SPARC will be described
 .
URL:https://www.physics.wisc.edu/events/?id=4802
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