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My research thus far has been focused on examining the electronic properties of the active collimator. I spent a few weeks working on capturing waveforms with a [[Media:jbtdsmanual.pdf|Tektronix TDS 2024 Digital Storage Oscilloscope]]. I connected each of the tungsten pin cushions within the active collimator to cables with an RF coaxial adapter input which was connected to the face plate and a BNC output which was connected to a [[Media:JbAmplifier.pdf|PMT-5R amplifier]]. I used a [[Media:JbPowersupply.pdf|F-100PS 15 Volt DC Power Supply]] to power the amplifiers.
 
My research thus far has been focused on examining the electronic properties of the active collimator. I spent a few weeks working on capturing waveforms with a [[Media:jbtdsmanual.pdf|Tektronix TDS 2024 Digital Storage Oscilloscope]]. I connected each of the tungsten pin cushions within the active collimator to cables with an RF coaxial adapter input which was connected to the face plate and a BNC output which was connected to a [[Media:JbAmplifier.pdf|PMT-5R amplifier]]. I used a [[Media:JbPowersupply.pdf|F-100PS 15 Volt DC Power Supply]] to power the amplifiers.
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Igor developed a data acquisition LabView program for the active collimator. The program allows the user to vary the gain setting on the amplifiers from 10^6 to 10^12, record the potential difference across each of the tungsten pin cushions at a frequency of about 80 points per second, and calculate Fourier transforms on the received signals. Below are pictures of some of these pieces of equipment, along with
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Igor developed a data acquisition LabView program for the active collimator. The program allows the user to vary the gain setting on the amplifiers from 10^6 to 10^12, record the potential difference across each of the tungsten pin cushions at a frequency of about 80 points per second, and calculate Fourier transforms on the received signals. The program is run on a PC that was built by Alex Barnes and myself. There is a data acquisition card in the PC that is necessary for the program to run. Below are pictures of the pieces of equipment used for data acquisition.
    
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<gallery>
file:JbActcolstation.jpg|Inside the active collimator. The tungsten pin cushions are secured onto the boron-nitride insulating cup.
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file:JbAmplifier.jpg| A PMT-5R amplifier. The signal from each pin cushion in the active collimator passes through one of these before it is sent to the PC.
file:JbCollimatorclose.jpg|The collimator's face plate.  
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file:JbPowersupply.jpg| The power supply used to power the amplifiers.
file:JbAmplifier.jpg|The grounded cup.
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file:JbTerminalboard.jpg| The terminal board that is used in collaboration with the data acquisition card installed in the PC.
file:JbPowersupply.jpg|A diagram that labels the components of the active collimator. Credit to Igor Senderovich.
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file:JbActcolstation.jpg|The active collimator station in Dr. Jones's lab.
 
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file:JbCollimatorclose.jpg|A close-up view of the active collimator connected to the amplifiers.
 
</gallery>
 
</gallery>
  
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