1. NICADD Participation in Fermilab Linear Collider Activities Linear Collider activities at NIU are rather diverse –Beam Physics & Diagnostics –Calorimeter & Muon Tracker –Financial Support of Fermilab Managed Activities –Outreach A number of individuals are involved –Faculty: 4 Detector; 1 Accelerator + 1 search underway –Scientist: 5 Detector; 4 Accelerator –Students: 4 Detector; 4 Accelerator Current Funding –State of Illinois HECA Grant for ICAR –Dept. of Education Grant for NICADD 2001-2004 & 2003-2006 –DOE: Advanced Detector Research (also pending) –NSF: UCLC (also pending) –Joint Technology Office: “Photoinjector Modeling and Simulation”

2. Beam Physics and Astrophysics Group Production of high-brightness electron beams at FNPL High Resolution electron beam diagnostics –Interferometry (transition radiation) –Electro-optic sampling (electromagnetic fields) Theory and Simulation of space charge –Chaos in time-dependent systems –Chaotic mixing in N-body systems (beams, galaxies) –Validity of the continuum (Vlasov) limit –Beam halo formation –New multiresolution algorithms (e.g., application of wavelets). –Eight FY03 pubs…

3. Example: Chaotic Orbits in Thermal- Equilibrium Beams [C.L. Bohn, I.V. Sideris, Phys. Rev. ST Accel. Beams 6, 034203 (2003)] Snapshots of four different clumps of chaotic orbits in a TE beam bunch with triaxial symmetry. Each clump grows exponentially to fill a volume commensurate to the total particle energy. Moral: Chaos can appear in simple static beams; thus one can expect (and one generally sees) chaos and fast collective dynamics in nonequilibrium beams!

4. Linear Collider Detector Activities Simulation, Design, and Prototyping of a Scintillator Digital Hadron Calorimeter –Simulations indicate approach competitive with analog calorimetry –Prototypes indicate there is sufficient sensitivity (light x efficiency) & uniformity. –Promising sensors –Now optimizing materials & construction to minimize cost with required sensitivity Combined Hadron Tail – Catcher & Muon Tracker Test Beam Studies Simulation Infrastructure Jet E(GeV)  /E Jet Resolution Eflow  = 0.17 Analog  = 0.16 Jet E: Recon/Gen

5. DHC Prototypes: Stack, Layer, & Unit Cell WLS to Clear Fiber MPTM

6. Si-PMs (PULSAR/MEPHI*) mounted on cell? Representative Spectrum * Moscow Engineering Physics Institute

7. NICADD/Fermilab Extruder

8. Tail Catcher/Muon Tracker & Test Beam Will enter into an MOU with DESY/ CALICE to –Contribute support and personnel to DHC test- beam –Provide Combination Tail Catcher / Muon Tracker ECal HCal Tail-catcher

9. Scintillator Based Muon System Proposed Parameters Proposed Parameters - 16 x 5cm gaps between - 10cm thick Fe plates. -Module sizes: - 940cm(Length) - (174 to 252cm)(Width) - Scintillator Strips - 4.1 cm X 1 cm -8u & 8v planes -8u & 8v planes. Fe Thickness = 10 cm Gap = 5 cm R(inner) = 4.45m stave 0 stave 1

10. Simulation Infrastructure Supporting Linear Collider Effort Through –Simulation of DHC, Test Beam, Tail Catcher –LC wide code development –Simulation requests Technically speaking: –Development and bug-fixing on LCDG4. Non-projective geometry simulations in HCal using LCDG4-NP, based on the REL01 LCDG4 codebase. SIO file format fixes. –Mutual certification of LCDG4 and Mokka Geant4 simulators. –Authoring of AIDA codes for analysis of text, SIO and LCIO output. –Production of SIO datasets of SD geometries for researchers at Argonne and SLAC. –Purchase and deployment of new LCD Computing server k2. –Setting up of physics distribution for shared development environment.

11. Other Linear Collider Related Activities Assisted with purchase of large and small furnaces for LC structure annealing. Assisting with the formation of an Advisory Committee to help Fermilab work with local organizations and citizens. Funding hydrogeological and geological studies for LC sites at NIU Geology Dept. Outreach program for local schools and civic organizations.