Possible Co-op Opportunities in Socorro for 2008

1 - LO/IF Group
The student will investigate the performance of the EVLA T304 down converter module. This will include developing a phase stability versus temperature and tilt model. The performance of multiple modules will be measured using the environmental chambers. The performance data will be used to generate the stability model. If time permits modifications to the T304 can be made to improve the phase stability.
Engineering advisor : Keith Morris

2 - LO/IF Group
The student will develop and implement a quality assurance procedure for the EVLA U/X up converter module. The procedure will include writing a LABVIEW program which will interface with the Ethernet based EVLA monitor and control system. Real time data will be collected from the module under test as the input signals are swept through the entire operating range. The procedure will incorporate EVLA project scientific requirements to set upper and lower acceptance levels. Modules that do not pass the quality assurance procedure will be sent back for repair.
Engineering advisor : Terry Cotter

3 - Fiber Group
The student will build a prototype fiber optic round trip phase system to measure the effects of environmental changes on the master LO distribution system. The EVLA project scientific requirements specify that changes as small as 0.1 picoseconds must be resolved and reported. Present designs can only resolve changes as small as 4.0 picoseconds. A candidate design has been developed by the lead engineer but the final design needs to be completed and a prototype needs to be built.
Engineering advisor : Steven Durand

4 - Front End Group
The student will complete the construction and testing of the Water Vapor Radiometer prototype. This instrument requires some investigation into its parametric performance characteristics. The student will assist in the modifications required to make this a viable instrument. The investigation will require the student to use and understand automated test equipment and network analyzers. The student will generate documentation and reports.
Engineering advisor : Chuck Kutz

5 - Front End Group
The student will continue an ongoing activity dedicated to the cryogenic receiver subsystem diode protection circuitry for the input power to the EVLA receivers. This work requires an Electrical Engineering student that is willing to use PROFORM (a technical drawing package). The student will build the preliminary assembly, make circuit measurements, and perform test validation of the completed assembly. The student will be required to document all procedures, schematic changes and test activities.
Engineering advisor : Bob Hayward

6 - Interference Protection Office
The student(s) will be responsible for developing and maintaining RF-spectrum data collection instrumentation, EMC testing, and enclosure shielding analysis. The applicant(s) should have an interest in RF communications and signals analysis, C and BASIC programming skills, a proficiency in Excel, www knowledge, good laboratory test documentation skills, and an interest in working a minimum of 40 hours/week at a remote site in the high plains of west-central New Mexico.
Engineering Adviser: Dan (Mert) Mertely

Application information for position in Socorro starting 15 August 2008 (PDF)

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