EDM collaboration meeting WBS 9.0: Slow controls, Simulations, DAQ/data analysis Chris Gould- North Carolina State University and Triangle Universities Nuclear Laboratory

Major subgroups Four sub tasks, divided into six work packages 9.1 Slow controls 9.2 Simulations 9.3 Data acquisition system 9.4 Data analysis

Slow controls EPICS (Experimental Physics and Industrial Control System) used to control the experiment (SNS, APS..) Five identical sub-systems for neutronics, cryogenics, He-3, inserts, and magnetic fields (N,C,H,I,M) N,C,H,I,M groups will select hardware compatible as much as possible with existing EPICS software Utilize Unix/Linux and VME to capitalize on existing software libraries at APS Deliver VME systems to subgroups to incorporate into their control systems

EPICS Supports a Standard Control System Architecture Workstations: Sun Hp DEC/Alpha Silicon Graphics PC OS: Unix, Some Windows I/O Controllers: VME,VXI PCI, Workstations OS: vxWorks, Unix, Windows RTEMS, RTLinux, L4 linux Field I/O Remote and Local I/O Buses: Control Net, PCI, CAN-Bus, Industry Pack, VME, VXI, PCI, ISA, CAMAC, GPIB, Profibus, Bitbus, Serial, Allen-Bradley, Modbus, Yokogawa, G-3, Ethernet/IP Field I/O Site LAN/WAN Field I/O Courtesy Bob Dalesio (APS)

Simulations Overall simulations/GEANT guru needed to coordinate efforts Neutronics: transport from the guide into the cell, plus inside and outside (n,gamma) backgrounds (UKY+..) Measurement cells: modeling n and 3He transport (spins and trajectories) and interactions (NC State, Caltech+..) Light transport: from initial uv production to pe’s per event at pm tubes (LANL+….) Experiment optimization: simulation of all aspects of a run cycle (Illinois?+..) B and E fields: full simulation of E and B fields in a complete experimental configuration (Caltech+…)

Neutronics simulations confirm input from SNS neutronics model for FNPB simulate neutron beam transport into measurement cell write code to analyze the neutron activation write code to analyze small angle scattering through windows write code to design collimation document summarizing results to collaboration simulate effect of neutron/gamma backgrounds write code to model beam-induced neutron/gamma backgrounds write code to model external neutron/gamma backgrounds document summarizing results to collaboration simulate required external neutron/gamma shielding write code to model requirements of external neutron/gamma shielding document summarizing results to collaboration

Experimental run cycle optimization simulation to optimize experimental run parameters write code to model 3He filling with polarization tracking/monitoring write code to model neutron filling with polarization tracking/monitoring write code to optimize EDM measurement sequence write code to model the application of fields to the measurement region write code to model the 3He removal document summarizing experimental run parameters

Measurement cell dynamics write code to model magnetic and electric fields into code simulate trajectories in measurement cells write code for UCN trajectories write code for 3He trajectories simulate spin dynamics in measurement cells write code for UCN spins write code for 3He spins Write code to model n-3He interactions document summarizing neutron cell dynamics

Light transport simulations write code to model UV propagation from capture event write code to model light down conversion process write code to model visible light transport write code to model detection, with estimates of photoelectron production write code to model afterpulse propagation and detection document summarizing light transport for collaboration

DAQ and data analysis simulation DAQ incorporates transient digitizers, cosmic rejection (maybe), and local analysis capability 1 kHz event rate at ~ 10kB/event = 10MB/sec 20 TB of data anticipated – archived locally and off site using RAID arrays and tape Need a fast DAQ/analysis system to supplement TD system Asssess need for cosmic rejection Simulation of afterpulsing needed to guide TD purchase specifications and DAQ needs

Cost Estimate – unburdened hardware Servers: 5 x ($20K +$12K) = $160K + $22K (vxworks) = $182K Clients: workstation x 4 +14TB RAID = $42K 9.2: DAQ: Transient digitizers etc. $57K Cosmic suppression system $100K 9.3: Simulations: 4 x ($7K) = $28K 9.4 Data analysis: 14TB RAID system + 20TB tape back up $39K Total unburdened hardware = $448K

Cost Estimate – totals Unburdened hardware = $448K (assume 100% capitalized)*1.10 contingency = $493K (last time: $378K for electronics, cables, computers; the difference is the cosmic suppression system) Software engineer 2579hrs*$92 = $237.2K Technician 506hrs*$63 = $30.9K Total personnel*1.10 contingency = $295K TOTAL ~$800K

Company LANL Current Date 5/23/2006 Title Electronics, Computers, Simulations, Data Analysis Project Start 10/16/2006 8:00:00 AM Project Finish 9/21/2008 5:00:00 PM

Staffing Plans While many tasks are nominally assigned, significant career advancement opportunities remain: Overall subsystem manager Work package coordinators for simulations, DAQ and data analysis Simulation guru with GEANT expertise particularly needed to lay out overall guidelines for subgroups EPICS experts/volunteers needed for all of five subsystems