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Research Group Openings
| Project Director |
Research Project |
Available Support |
Necessary Qualifications |
| Chapman, J. |
I am seeking a student to work on the radiation tolerance tests of a Xilinx FPGA device. These devices retain their program in static RAM and should this RAM suffer a Single Event Upset (SEU) the logic performed by the unit could change in unpredictable ways. To perform test that determine the probability of such upsets, the student would program the FPGA for a variety of functions, read back the program at regular intervals, and check whether the any bits have changed. The programming of the FPGA could be simply a series of random patterns since the integrity of the pattern is the issue not the function it performs. |
Undergraduate Students |
An interest in code development for physics analysis will clearly make this project more interesting. Analysis topics include an evaluation of the errors found, the radiation levels at which the devices exhibit SEU, and the evalutation of mechanisms to sense errors within the FPGA via parity or cyclic redundancy codes.
More information on this project is available in Student Services.
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| Chapman, J. |
This project involves the preparation of a circuit board with about 100 tantalum capacitors, each connected to a 5-volt supply, to individual resistors, with those resistors connected to a common ground. The voltages metered at the capacitor-resistor junctions monitors the current in each capacitor. Since the circuit board is to be left in the radiation environment, voltage-sensing wires will be connected to each resistor and to the ground. To examine the leakage currents the voltage on each sensing pair will need to be measured at various exposures from 0 to 100Krad. |
Undergraduate Students
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More information on this project is available in the Office of Student Services. |
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