Welcome Tom Himel April 25, 2012

SLAC National Accelerator Laboratory Sand Hill Road You are here! SLAC Linac Cover Slide SLAC is a U.S. DOE-funded, National Laboratory operated by Stanford University for Office of Science Dedicated to fundamental research, no classified work The Laboratory was founded in 1962 on 426 acres of Stanford University land that is leased to the Federal Government Original mission to perform basic research accelerator-based particle physics. The Laboratory program has since broadened to include photon science, particle astrophysics and cosmology. SLAC as an administrative unit does not matriculate students we do have a ~50 faculty in two separate departments SLAC faculty supervise graduate students and postdocs Today I want to tell you a bit about the lab, our science and our future. Fwy 280 Persis S. Drell Director April 11, 2011

SLAC HEP Focus Moves to Particle Astrophysics Fermi Gamma Ray Space Telescope Joint DOE/NASA project Launched summer 2008 and providing most detailed look of the gamma ray Universe Large Synoptic Survey Telescope Highest priority ground based project in 2010 Decadal Survey Joint DOE/NSF project First light 2020(?)

The Reinvention of SLAC SLAC Accelerators making X-Rays SLAC Accelerators for Particle Physics

The New Frontier: Atomic Resolution in Space and Time X-ray ‘camera’ with shutter speed of 0.00000000000001 sec (10fs) allows us to: See atoms and electrons moving on their natural timescale Watch a chemical reaction atom by atom Frontier opened in 2009 with ‘ultra-bright’, ‘ultra fast’ x-ray pulses from LCLS here at SLAC The future of photon science will be driven by our desire to observe and manipulate the ultrafast timescales of valence electron motion (fs-as), the spatial scale of atoms (nm), and the energy scale of the weak interactions that hold electrons in correlated motion with near neighbors (meV). Goals are to really understand the dynamics of electrons during transitions caused by perturbations novels material design be able to follow the energy flow in light and heat induced catalysis and chemistry at surfaces and interfaces to probe electronic structure of “complex materials” on the nanoscale with the goal of understanding the weak correlated interactions between charges and spins to do biological imaging of the complex molecular machines that are central to life, and understand their higher level organization and control. We have two facilities at SLAC that are focused on photon science and providing the tools to attack this science

What Could We Do With An ‘Ultra-Fast, Ultra-Bright’ X-ray Source? Make movies of chemistry in action Unlock secrets of photosynthesis and catalysis Study the structure and time-resolved function of single molecules e.g. proteins Drug discovery Do 3D imaging and dynamical studies of the bio-world Understanding of cell function Solve the (transient) structure of water and other liquids Understand this most common and important liquid Characterize the transient states of matter created by radiation, pressure, fields, etc Control behaviors in extreme environments where new materials can be created

Inside View: LCLS Undulator Tunnel Lasing ‘campaign’ started at 7PM on 4/10/09 By 10PM, the world’s first x-ray free electron laser was lasing at 1.5 Angstroms! First experiments started 10/1/09

LCLS-II: New Injector, Accelerator, & Bypass (Slide souced from P. Emma presentation) enclosure exists at sector 10 3.5-14 GeV e- bypass line 3.5-14 GeV new undulators L3 X RF gun-2 L1 L2 BC1 BC2 L0 Sector-20 wall RF gun-1 L0 undulator X L1 BC1 L2 BC2 L3 3.5-14 GeV existing LCLS sector-10 sector-14 sector-20 sector-24 sector-30 und-hall Use 2nd km of SLAC linac (sector 10 to 20) – greater flexibility 3-14 GeV energy at 120-Hz beam rate; or 3-7 GeV energy (no SLED) (allows 360-Hz beam rate – not in project) Preserves possibility of up to 28 GeV (and still 1 more km left!)

Recent or planned major EPICS developments Fast feedback – 120 Hz multi-IOC, Ethernet links Archiver – Need million channels, want to reduce care and feeding (e.g. making new index files and manually setting up many engines) PV gateway – Waveforms slow it down. Making new multi-threaded version MPS – 1 pulse response at 120 Hz Linac upgrade – moved LCLS linac control from Alpha/SLCnet/multibus micro/CAMAC to EPICS/ethernet/IOC/CAMAC. microTCA BPM and LLRF Includes linux with RT patch as IOC OS