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DTSTAMP:20260818T120700
DTSTART;TZID=America/Detroit:20260916T151000
DTEND;TZID=America/Detroit:20260916T161000
SUMMARY:Lecture / Discussion:MIPSE Seminar | Xcimer’s Approach to Inertial Fusion Energy
DESCRIPTION:Abstract: \nXcimer Energy Corporation is developing a new generation of large‑scale\, high‑efficiency excimer laser systems designed to enable practical inertial fusion energy. This talk will outline the physics and engineering foundations of high‑energy KrF laser architectures and their advantages for coupling energy to direct‑drive fusion targets. This presentation will describe Xcimer’s integrated roadmap for de‑risking and scaling the technology. These strategies include the Phoenix program to demonstrate and validate gas optics performance\; Anvil\, Xcimer’s first dedicated target‑shooter facility to derisk two beam implosion\; and Vulcan\, a 4‑MJ‑class laser system intended to demonstrate fusion breakeven. The seminar will also introduce Athena\, a conceptual fusion pilot plant featuring a liquid first wall designed for a 40‑year lifetime and compatible with high‑repetition‑rate operation. Together\, these developments form a coherent pathway towards high‑gain direct‑drive targets and commercially relevant fusion energy systems. The talk will highlight the system‑level considerations that motivate excimer technology\, the target‑design implications of higher available laser energy\, and the engineering concessions required for a viable fusion power plant.\n\nAbout the Speaker: \nAlison Christopherson is the Head of Target Design at Xcimer Energy Corp. where she leads the development of high‑gain direct‑drive targets for next‑generation excimer‑laser–driven inertial fusion energy systems. She earned her B.S. in Nuclear Engineering from the University of Michigan and her Ph.D. from the University of Rochester\, specializing in direct‑drive inertial confinement fusion. Her doctoral work advanced understanding of alpha particle heating and ignition\, earning her the Rosenbluth Award for excellence in plasma physics. She went on to serve as a staff scientist in the Inertial Confinement Fusion program at Lawrence Livermore National Laboratory during the period when ignition was first achieved. Her experience at LLNL reinforced a key conclusion: solid‑state laser architectures face fundamental scaling limits for the energy levels required to produce robust\, high‑gain targets and to accommodate the engineering concessions of a fusion power plant. Motivated by the promise of gas‑optics–based excimer technology\, she joined Xcimer to lead its target design program and shape the physics basis for the company’s fusion roadmap.\n\nThe seminar will be conducted in person\, with livestream on Zoom. For more information\, please check the MIPSE website: https://mipse.umich.edu/seminars_2627.php#fall2026
UID:150199-21908386@events.umich.edu
URL:https://events.umich.edu/event/150199
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Lecture,Michigan Engineering,Plasma,Research,seminar
LOCATION:Electrical Engineering and Computer Science Building - 1003
CONTACT:
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DTSTAMP:20260911T222538
DTSTART;TZID=America/Detroit:20260916T153000
DTEND;TZID=America/Detroit:20260916T170000
SUMMARY:Workshop / Seminar:Algebraic Geometry Seminar: Positive cycles on Hilbert schemes of points
DESCRIPTION:Algebraic geometers are often interested in certain “positive” cones that one can associate to varieties\, such as the nef and effective cones. While traditionally studied in the divisor and curves cases\, cones of cycles of intermediate dimension have recently been the subject of much study. We discuss some results on nef and effective cones of intermediate dimension cycles in the case of Hilbert schemes of points. In particular\, we look at the Hilbert scheme of 3 points in $\mathbb{P}^3$. Our computation generalizes results of Ryan & Stathis and requires a careful analysis of the PGL orbits in the Hilbert scheme\, as well as a new basis of the Chow ring inspired by Mallavibarrena and Sols.
UID:151651-21911898@events.umich.edu
URL:https://events.umich.edu/event/151651
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4096
CONTACT:
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