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COSMIC RAY OBSERVATORY COSMIC RAY OBSERVATORY PROJECTPROJECT
Goal of the statewide projectGoal of the statewide project Install cosmic ray detectors at high Install cosmic ray detectors at high
schools around the state of Nebraskaschools around the state of NebraskaLink the data-acquisition computers via Link the data-acquisition computers via
the Internetthe InternetDevelop the largest cosmic ray Develop the largest cosmic ray
detection network anywhere (75,000 detection network anywhere (75,000 square miles)square miles)
WATERLOO C.R.O.P. SITEWATERLOO C.R.O.P. SITE
Equipment InventoryEquipment Inventory
Particle DetectorParticle Detector– To register the impact and energy of cosmic raysTo register the impact and energy of cosmic rays
Global Positioning SystemGlobal Positioning System– To record the exact time and place of the strikesTo record the exact time and place of the strikes
Personal ComputerPersonal Computer– To keep track of the data and link it to other To keep track of the data and link it to other
CROP sitesCROP sites
LOCATION OF PARTICLE LOCATION OF PARTICLE DETECTORDETECTOR
Rooftop of Waterloo High SchoolRooftop of Waterloo High School Four detection units set up in weather-Four detection units set up in weather-
proof enclosures proof enclosures
PREPARING WIRING HARNESS PREPARING WIRING HARNESS
Untangling and grouping wires for the Untangling and grouping wires for the particle detectorsparticle detectors
CONNECTING ELECTRONICSCONNECTING ELECTRONICS
Rooftop detectors are connected to data Rooftop detectors are connected to data acquisition cards (DAQ) located inside acquisition cards (DAQ) located inside the building.the building.
SETTING THRESHOLDSSETTING THRESHOLDS
To calibrate the particle detectors, To calibrate the particle detectors, thresholds had to be verified and set thresholds had to be verified and set
GPS AND COMPUTER SET UPGPS AND COMPUTER SET UP
Global Positioning Satellite (GPS) Global Positioning Satellite (GPS) receiver is connected to the data receiver is connected to the data acquisition card.acquisition card.
The data acquisition card is connected to The data acquisition card is connected to the computer.the computer.
TECHNICAL DIFFICULTIESTECHNICAL DIFFICULTIES
At present, computer is not At present, computer is not communicating with the data communicating with the data acquisition card.acquisition card.
Contact has been made with Technical Contact has been made with Technical Support for assistance in diagnosing Support for assistance in diagnosing and correcting this problem.and correcting this problem.
