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Senior Design
1
Project RNG: Radiation-BasedRandom Number Generator
• Team Oregon Chub– Ashley Donahoo– Colton Hamm– Alex Brotherston– Matt Johnson
University of Portland School of Engineering
AdvisorDr. VanDeGrift, Dr. Hoffbeck
Industry RepresentativeMr. John HanerBonneville Power Administration
Senior Design
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Introduction
• Our project generates random numbers from radioactivity
• Building a radiation sensor, designing a MOSIS chip and using 7-segment displays (serial port)
University of Portland School of Engineering
Senior Design
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Accomplishments
• Got Project Approved
• Web page
• Customer interview complete
• Functional Spec draft 0.9 turned in
University of Portland School of Engineering
Senior Design
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Plans
• Get functional spec 1.0 approved
• Have a working pulse-generator
• Design MOSIS chip timer and comparator
University of Portland School of Engineering
Senior Design
5University of Portland School of Engineering
MilestonesStatus Description Original
TargetPreviousTarget
PresentTarget
Completed Customer Interview 16 Sep 10 16 Sep 10 16 Sep 10
Completed Functional Spec Draft .90 24 Sep 10 24 Sep 10 24 Sep 10
On track Simulate Pulse Generator & Transformer in PSPICE
1 Oct10 1 Oct10 1 Oct10
On track MOSIS Chip: Timer 3 Oct 10 3 Oct 10 3 Oct 10
On track Functional Spec Draft .95 8 Oct 10 8 Oct 10 8 Oct 10
On track Functional Spec 1.0 15 Oct 10 15 Oct 10 15 Oct 10
On track MOSIS Chip Completed 19 Nov 10 19 Nov 10 19 Nov 10
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Concerns/Issues
• Geiger tube is 45% of our budget
• Geiger tube may not output the expected current spike
• Interval it takes to collect 8-bits
University of Portland School of Engineering
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Conclusions
• Sense, time, generate and display a 3-digit random number
• Continue MOSIS design and build a pulse- generator
University of Portland School of Engineering
Senior Design
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Questions?
University of Portland School of Engineering
