July 7, 2008SLAC Annual Program ReviewPage 1 LSST Program and Development Status Kirk Gilmore SLAC/KIPAC/LSST

July 7, 2008SLAC Annual Program ReviewPage 2 Development of the LSST concept Endorsed by several NAS panels and reports on astronomy and high energy physics Community Committee Developed “Towards the LSST Design Reference Mission” Strauss et. al LSST “LSST: From Science Drivers to Reference Design to anticipated Data Products” Ivezic et. al Astro-ph: Astronomy Physics LSST probes 100x fainter & enables the exploration of the time domain. LSST Science Requirements Document LSST Science Council LSST is motivated by massively parallel astrophysics to answer a wide range of today’s pressing questions in cosmology and fundamental physics

July 7, 2008SLAC Annual Program ReviewPage 3 LSST Science Requirements focus on 4 Representative and Divergent Programs LSST enables multiple investigations into our understanding of the universe Dark Energy-Dark Matter Exploring our Solar System LSST will find 90% of hazardous NEOs down to 140 m in 10 yrs “Movie” of the Universe: time domain Mapping the Milky Way LSST will map the rich and complex structure of our Galaxy. Discovering the transient and unknown on multiple time scales

July 7, 2008SLAC Annual Program ReviewPage 4 Key LSST HEP Mission: Dark Energy Precision measurements of all four dark energy signatures in a single data set. Separately measure geometry and growth of dark matter structure vs cosmic time.  Weak gravitational lensing correlations (multiple lensing probes!)  Baryon acoustic oscillations  Counts of dark matter clusters  Supernovae to redshift 0.8 (complementary to JDEM)  Probe anisotropy! LSST unique

July 7, 2008SLAC Annual Program ReviewPage 5 LSST has submitted an NSF proposal for $242 M of Construction funding *Construction proposal submitted in February 2007 –60 Month Construction and Commissioning –Ready for MREFC Funds in FY Expect in FY 2011 –Proposed as Public Private Partnership to Share costs NSF MREFC - $242 M DOE HEP - $50 M Private - $100 M *Current Design and Development –NSF 4yr Award = $14.2 M –DOE Lab Participation –Partner In-Kind –Private Donation *Operations and Maintenance –Summit, Base, Archive, Data Centers = $45 M/yr (2016) (FY06 $ with Contingency)

July 7, 2008SLAC Annual Program ReviewPage 6 The LSST proposed schedule

July 7, 2008SLAC Annual Program ReviewPage 7 Summary of LSST project progress since last DOE Program Review 1.Recent Project and Camera Developments A. $20M award from Charles Simonyi & $10M from Bill Gates - Primary/Tertiary mirror fabrication B. $1.5M from Keck Foundation and $1.2M from Eric Schmidt (Google CEO): Total = $2.7M - Sensor prototyping (RFP) C. Conceptual Design Review in September 07 (CoDR-NSF) D. IN2P3 (France) involvement is evolving (~$600K M&S in 08/09 + in-kind FTE) E. AAS in Austin - 28 Posters (on SPIE in Marseille - 12 Papers on LSSThttp:// 2.Camera Schedule A. Currently in R&D - 53 people/14 institutions and universities B. Anticipated transition to MIE (construction) in 2010 C. Telescope first light 2014 D. System first light 2015 E. Full science in Camera Budget A. Working primarily with SLAC M&S B. Using budget to support reviews via prototyping and analysis: M&S and labor and FPT to outside institutions C. IN2P3 ramping up 4.Science A. Science collaborations (10) starting to engage and establish projects B. Science Requirements Document established 5. LSST Project/camera related Events A. P5 B. LSST Project All-hands meeting in May (~150 people) C. PDR (NSF) 2nd qtr FY09; CD-1 (DOE) ~same time

July 7, 2008SLAC Annual Program ReviewPage 8 The LSST Project is a Complete System: Image, Analysis, Archive, Publish and Outreach Telescope and Site Camera Data Management Cerro Pachon La Serena Education and Public Outreach

July 7, 2008SLAC Annual Program ReviewPage 9 Science drivers for the LSST camera 1. Constraining Dark Energy and Dark Matter 2. Taking an Inventory of the Solar System 3. Exploring the Transient Optical Sky 4. Mapping the Milky Way Major Implications to the Camera 1.Large Etendue 2.Excellent Image Quality and Control of PSF Systematics 3.High Quantum Efficiency over the Range 330 – 1,070 nm 4.Fast Readout Main SLAC activity: development of LSST camera

July 7, 2008SLAC Annual Program ReviewPage 10 LSST camera concept Back Flange Filter Carousel Cryostat L1/L2 Assembly Filter Auto Changer Valve Box Utility Trunk Filter Shutter

July 7, 2008SLAC Annual Program ReviewPage 11 LSST Camera Deliverable Org Chart Electronics Oliver (Harvard) WBS Sensor/Raft Development Radeka/O’Connor (BNL) WBS Optics Olivier (LLNL) WBS Cryostat Assembly Schindler (SLAC) WBS Calibration Burke (SLAC) WBS Camera Body Mechanisms Nordby (SLAC) WBS Data Acq. & Control Schalk (UCSC) WBS Corner Raft WFS/Guider Olivier (LLNL) WBS Utilities Nordby (SLAC) WBS Sensors/Filters Pain/Antilogus (IN2P3) LPNHE, LAL, APC, LPSC, LMA SLAC/LSST M&S to outside institutions via Financial Plan Transfer

July 7, 2008SLAC Annual Program ReviewPage 12 Overview of Financial Data – FY2008

July 7, 2008SLAC Annual Program ReviewPage 13 Overview of Financial Data

July 7, 2008SLAC Annual Program ReviewPage 14 The LSST Camera Team: 72 People from 16 Institutions Brandeis University J. Besinger, K. Hashemi Brookhaven National Lab S. Aronson, C. Buttehorn, J. Frank, J. Haggerty, I. Kotov, P. Kuczewski, M. May, P. O’Connor, S. Plate, V. Radeka, P. Takacs Florida State University Horst Wahl Harvard University N. Felt, J. Geary (CfA), J. Oliver, C. Stubbs IN2P3 - France R. Ansari, P. Antilogus, E. Aubourg, S. Bailey, A. Barrau, J. Bartlett, R. Flaminio, H. Lebbolo, M. Moniez, R. Pain, R. Sefri, C. de la Taille, V. Tocut, C. Vescovi Lawrence Livermore National Lab S. Asztalos, K. Baker, S. Olivier, D. Phillion, L. Seppala, W. Wistler Oak Ridge National Laboratory C. Britton, Paul Stankus Ohio State University K. Honscheid, R. Hughes, B. Winer Purdue University K. Ardnt, Gino Bolla, J, Peterson, Ian Shipsey Rochester Institute of Technology D. Figer Stanford Linear Accelerator Center - G. Bowden, P. Burchat (Stanford), D. Burke, M. Foss, K. Fouts, K. Gilmore, G. Guiffre, M. Huffer, S. Kahn (Stanford), E. Lee, S. Marshall, M. Nordby, M. Perl, A. Rasmussen, R. Schindler, L. Simms (Stanford), T. Weber University of California, Berkeley J.G. Jernigan University of California, Davis P. Gee, A. Tyson University of California, Santa Cruz T. Schalk University of Illinois, Urbana-Champaign J. Thaler University of Pennsylvania M. Newcomer, R. Van Berg

July 7, 2008SLAC Annual Program ReviewPage 15 Major camera risk mitigation scheduled prior to construction are buying down risk R&D EffortPlan Status Demonstrate sensor performance Establish all specs are met: Flatness, high fill factor, electrical parameters, mechanical packaging Study phase sensors received and being evaluated. Prototype contracts being generated. Efficient sensor procurement Establish cost, yield and performance of sensors PO’s being drafted that address risk areas. Prototype phase starting Establish reliability of shutter and filter mechanisms Build prototype mechanisms and test Design completed. Procurement of parts begun Evaluate outgassing properties of cryostat components Contamination control demonstrated in engineering cryostat Contamination testing started. Materials selection process begun. 75cm filter w/multilayer coatings produced with non-uniformity of <1%. Fabrication of samples in large coating chamber to evaluate uniformity of filter transmission Passbands defined. Total system throughput modeled. Some witness samples already produced. RFP to potential vendors ready.

July 7, 2008SLAC Annual Program ReviewPage 16 BNL and sensor group are providing leadship for schedule driven sensor development -50V -10V X-ray images Request for proposals for prototype science CCDs – issued Feb – contract award June/July high-resistivity, thick CCDs from study program have been extensively characterized – design models validated – behavior of dark current, quantum efficiency, and point spread function vs. thickness, temperature, and electric field – flatness and surface morphology – antireflection coating CCD controllers for 4 new test labs under construction – UC Davis, SLAC, Paris, Purdue – allows full-speed testing of segmented sensors Components for CCD/electronics chain testing in assembly (Raft/Tower electronics: prototype by end of year

July 7, 2008SLAC Annual Program ReviewPage 17 RFP for Prototyping Filters in cm dia. Curved surface Filter is concentric about the chief ray so that all portions of the filter see the same angle of incidence range, 14.2º to 23.6º Filter is concentric about the chief ray so that all portions of the filter see the same angle of incidence range, 14.2º to 23.6º Specs Filter RFP being sent out to selected vendors Filter prototyping will qualify vendors to fabricate science filters Half-Maximum Transmission Wavelength

July 7, 2008SLAC Annual Program ReviewPage 18 Contamination test chamber at SLAC Fore or Preparation Chamber Main Chamber FORE MAIN Camera Controls cold finger Other major efforts using SLAC resources Working is proceeding on plans to deliver a prototype test stand by end of calendar year Goal by PDR

July 7, 2008SLAC Annual Program ReviewPage 19 Conclusions *LSST Camera R&D progressing well toward NSF full LSST PDR, scheduled for early *A contemporaneous DOE CD-1 would keep the project on track to enable first light in *Significant growth in this program is envisioned beginning if FY10, with LSST replacing GLAST as the major development effort in particle astrophysics and cosmology at SLAC.