Simon Clark Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA94720 Report on West Coast Activities COMPRES AGU: Mohonk Mountain Resort, New York. 16 th – 19 th June 2005
COMPRES West Coast Team
West Coast Scope Advanced Light Source bl bl 11.3 bl 1.4 HP Lab Spear III SPPS/LCLS
layout Tilt motor Superbending Magnet Source 30 x 240 mm FWHM M1 Plane Parabola Phosphor coated vertical alignment aperture Kohzu 2 Crystal Monochromator Roll motor 2 nd crystal tilt motor Al foil photodiode M2 2:1 Toroid Tilt motor Ti foil beam position monitor TV Camera viewing beam image on Phosphor Fast CCD shutter coated with Phosphor Variable horizontal slits to adjust convergence angle Advanced Light Source Beam line End station 2 End station 1
ES-1 operating fully
Laser heating system
Falling sphere Steel gasket Pt sphere Ga Ruby chip 14µm
BL Mid Term Objectives Streamlined Ω heating system Install on-line Raman system Develop off-line Brillouin system Remodel es1 for single Xtal HP Re-commission HP SAXS (7.3.3)
Higher Ps and Ts Current techniques Shockwave techniques Metalization of hydrogen Opening up a new frontier for planetary and materials science
Shockwaves and x-rays Laser pulse Sample Quartz disk X-rays
So, what is the catch? Shocked state stable for ~ 1 ns
Source comparison SourceX-ray energy (keV) Photons/pulsePulse repetition rate Pulse length San Diego Plasma Source Hz300fs Pleiades Hz5ps Advanced Light Source Bend Magnet8-122x GHz70ps Advanced Light Source Slicing Source kHz200fs Advanced Photon Source kHz100ps Linac Coherent Light Source Hz200fs
LCLS 120 Hz (8.3ms) 200fs 8keV
LCLS layout
Conclusions ALS Systems fully operating Succession plan through SPEAR III and LCLS Apply Now! Deadline 1 st July!