Rapid heating of matter using high power lasers
2015.11.05 16:39
날짜 | 2015-11-10 16:00 |
---|---|
일시 | 2015/11/10, 4PM |
장소 | E6-2, #1323 |
연사 | Dr. Woosuk Bang (Physics division, Los Alamos National Laboratory) |
“Rapid heating of matter using high power lasers”
Dr. Woosuk Bang
Physics division, Los Alamos National Laboratory
Nov. 10 (TUE), 4:00 p.m. , Seminar Room(#1323)
With the development of several novel heating sources, scientists can now heat a small sample rapidly above 10,000 K. Although matter at such an extreme state, known as warm dense matter, is commonly found in astrophysics (e.g., in planetary cores) as well as in high energy density physics experiments, its properties are not well understood and are difficult to predict theoretically. A sufficiently large warm dense matter sample that is uniformly heated would be ideal for these studies, but has been unavailable to date. On the Trident laser facility at Los Alamos National Laboratory, we have used a beam of quasi-monoenergetic aluminum ions to heat gold and diamond foils rapidly and uniformly. For the first time, we visualized directly the expanding warm dense gold and diamond with an optical streak camera. We developed a new technique to determine the initial temperature of these heated samples from the measured expansion speeds of gold and diamond into vacuum. We anticipate the uniformly heated solid density target will allow for direct quantitative measurements of equation-of-state, conductivity, opacity, and stopping power of warm dense matter, benefiting plasma physics, astrophysics, and nuclear physics.
Using even smaller targets (~10 nm radius spheres of solid deuterium), ion temperatures exceeding 108 K have been achieved in the laboratory. We will discuss briefly about nuclear fusion experiments using high power lasers.
Contact: Yoonsoo Kim, Administration Office. Tel. 2599
댓글 0
번호 | 날짜 | 장소 | 제목 |
---|---|---|---|
146 | 2015-12-17 11:00 | E4(KI Building), Matrix Hall (2nd fl.) | Wavefront engineering for in-vivo Deep brain imaging |
145 | 2015-12-09 11:00 | E4(KI Building), Connect room (2nd fl.) | Functional Imaging & Monitoring of Brain & Breast with Diffuse Light |
144 | 2015-03-13 14:00 | Connect Room, KI Bldg. | The 15th Innovative Workshop on Soft/Bio Materials |
143 | 2022-09-21 16:00 | College of Natural Science E6-2, Rm. 1323 | Materials and Device Nanofabrication of Optical Metasurfaces |
142 | 2023-09-14 16:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus | [CAPP seminar] Dark matter searches in Water Cherenkov Detectors |
141 | 2023-05-15 16:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus | Role of dark Higgs boson in DM physics and cosmology |
140 | 2023-09-18 16:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus | [CAPP Seminar] Searching for axions in quantum vacuum birefringence |
139 | 2023-10-11 16:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus | [CAPP seminar] Particle Physics with Neutrinos |
138 | 2023-09-21 16:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus | [CAPP seminar] Axion Magnetic Resonance |
137 | 2023-06-14 16:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus | [CAPP seminar] EMC at CERN |
136 | 2024-01-25 16:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus | [CAPP seminars] Detecting Gravitational Waves by Elecromagnetic Cavity |
135 | 2023-03-27 15:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus | A coherent mechanical oscillator pumped by a suspended quantum dot |
134 | 2023-03-30 16:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus | Detecting axions with chiral magnetic effects |
133 | 2023-07-26 10:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus | [CAPP Seminar] Am Expansive Search for Dark Matter with ADMX and DM Radio |
132 | 2023-06-22 16:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus | [CAPP Seminar] The muon g-2 puzzle |
131 | 2023-06-15 16:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus | [CAPP Seminar] Cryogenic electronics for ion traps |
130 | 2023-12-14 16:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus | Superconducting qubits for large-scale quantum computers |
129 | 2023-07-20 16:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus | [CAPP Seminar] Cosmoparticle Physics of Dark Universe |
128 | 2022-07-21 16:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus | Quintessential axions |
127 | 2020-10-15 16:00 | CAPP Seminar Room #C303, Creation Hall (3F), KAIST Munji Campus | Graphene-based Josephson junction microwave bolometer |