Kristofer S.J. Pister (Advisor)

Research Advised by Professor Kristofer S.J. Pister

Pister Group: List of Projects | List of Researchers

Dosimetry Dust: An Ultrasonic Backscatter Implantable Dosimetry Device

Stefanie Garcia

Michel M. Maharbiz

Kristofer S.J. Pister

2017

Proton beam therapy is a well-established medical procedure for treating certain kinds of cancer, and is uniquely suited for treatment of head, neck, and eye tumors. Despite the continuous improvements in medical physics treatment plan simulations, improper tissue irradiation can easily occur if there is a shift in the tumor and/or critical organs during the irradiation process. A fully implantable dosimeter for in vivo dose measurements can provide closed loop treatment feedback to a physician during radiation treatments, and assist in enabling full irradiation of a tumor. This work...

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BPN902: Jumping Microrobots for Low-Cost Asteroid Prospecting

Daniel Teal

2021

We are exploring potential applications of our jumping microrobots in space. While our 1.9x1.2x0.06cm robot has previously jumped 3mm (and can theoretically achieve 3cm or much more) in Earth gravity, the same actuator would reach escape velocity in the 6 micro-g gravity of the Near Earth Asteroid (NEA) Bennu, the target of NASAs current OSIRIS-REx sample return mission. This implies it is possible to build a thousand-robot swarm of 1cm^3 1g robot capable of hopping around and measuring an NEA. This is useful because such a swarm is simultaneously lighter (by orders of magnitude) and more...

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Energy Measures for Sensor Networks

Lance Doherty

Kristofer S.J. Pister

Kannan Ramchandran

Ming Gu

2004

The problem of full data recovery from a sensor network of thousands of randomlyplaced nodes is addressed as it relates to the complexity of the network data. In the applications of interest, the user requires a representation of the full twodimensional data generated by a field underlying the area of the network. The usefulness of data recovery algorithms is judged by the units of energy consumption to recover sufficient data to reconstruct the field to a...

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Electro Micro-Metrology

Jason Clark

Kristofer S. J. Pister

James Demmel

Sanjay Govindje

Luke P. Lee

2005

Electro Micro-Metrology (EMM) is a novel methodology for precision metrology, sensing, and actuation at the micro- and nano-scale. EMM is well-suited for tiny technology because it leverages off the electromechanical benefits of the scale. EMM is the method of using micro- or nano-scale devices to measure and characterize themselves, other devices, or whatever the devices subsequently interact with. By electronically measuring the change in capacitance, change in voltage, and/or resonant frequency of just a...