Beam Test Plan 1999 P Roger Williamson

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Beam Test Plan 1999 • P. Roger Williamson • Hansen Experimental Physics Laboratory • Stanford University • GLAST Collaboration Meeting • GSFC • February 10, 1999

Beam Test 1999 Components SLAC Provided Beam Tower Beam DP HSK L 1 Trigger ESA Beam Event Data NIM Bin Reflective Memory Beam Pulse REQ TTL level 50Ω Term. 120 V AC Power Conditioner 28 V Power supply Prototype Tower Tracker Calorimeter Anti-coincidence HSK L 1 T, L 2 T, L 3 T Instrument Data Bus Spacecraft Simulator Command Telemetry S/C Data packet ACS Simulator GPS Position & Time Simulator Cisco 2924 C-XL Fast Ethernet Switch Beam End Position Sensor and Control Workstations SETS acquire hex tabular tracker histo Stanford/HEPL Provided Cisco 2924 C-XL Fast Ethernet Switch Fiber-optic 100 Base FX Tornado windsh launch windview To Internet & Beam Control, non-event data Counting House prw 2/10/99

Level 1 Trigger • Beam Tower – Utilize ACDREQ in L 1 T FPGA – Beam pulse variable delay time w. r. t. particle arrival (includes pre-trigger) – Input can be enabled or disabled by command • Prototype Tower – L 1 T • ACD • CAL • TKR – All inputs can be enabled or disabled prw 2/10/99

Spacecraft Simulator • Forward commands • Attitude simulator – Reads table position • Forwards telemetry data controllers packet – Transmits simulated attitude • Assembles SC data packet data to towers • GPS simulator – Transmits simulated position data to towers – Transmits simulated GPS time data to towers – Transmits GPS sync to towers prw 2/10/99

Simulated Spacecraft Communications • Simulated uplink for • Cisco 2924 C-XL commands Switch • Simulated X-band • 10 or 100 Mb/S twisted downlink at 100 Mbps pair Ethernet between towers • 100 Base-FX fiber Ethernet uplink/downlink prw 2/10/99

Run Control GLAST Run Control Run # GMT Run data sheet info in this section (previously on paper) • Enter data in web page – Boxes auto-fill – Replaces “Run Log” pages • Start sends the start run command – To Spacecraft Simulator – To Beam Control Add Comment Box (Re)Start Run • Does NOT replace written logbook Stop Run prw 2/10/99

Beam Test 1999 Software Tasks • Run Control input form • SETS startup scripts – stripcharts – tabular displays – striptabs • SETS histograms • glastsim analysis interface • Revitalize tjrecon, etc • glastdaq – – – – data packet definition data acquisition L 2 T L 3 T file management watchdog timer setup scripts • beamtower – – data packet definition data acquisition L 2 T L 3 T prw 2/10/99

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