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Matroshka

The EVARM project has led to the development of another space radiation project that Best Medical Canada has undertaken with the Canadian Space Agency and the Russian Space Agency. This project is called MATROSHKA (the Russian "doll within a doll"). Radiation dose to the organs inside an astronaut will be determined during space travel. This will be achieved by using phantoms, hence the project name, Matroshka. The Russian Space Agency has developed a phantom which will permit 5 MOSFETs to be inserted intracavitarily to measure dose distribution. The MOSFETs will be continuously monitored several months at a time and the data stored and retrieved from an electronic reader similar in operation to the AutoSense product currently used in radiotherapy and radiology. Other types of radiation detectors will also be used in this international project. The MOSFETs will determine organ dose much in the same way that they are currently used in phantoms in radiotherapy and radiology.

The flight unit was assembled at Best Medical Canada and was accepted by the Russian Space Agency in January 2004. Launch on a Progress rocket is expected in late 2004.

Best Medical Canada has worked with Russian radiation experts since the early 1990's and developed joint experiments to study space radiation on the outside of their biological satellites as well as over very long periods (over one year) inside MIR space station.

In-orbit monitoring of Total Dose & Single Events Effects using proven technologies

Proton Monitor – small, low power instrument to monitor Single Event Upsets (SEUs) in space-borne electronics. Click here to view the Datasheet (PDF)

Proton Monitor CPLD – smaller, lighter in mass and consuming less power than the original. Allows for a more flexible satellite interface. Click here to view the Datasheet (PDF)

Dose Depth Monitor – measures dose depth curve at four shield thickness of shield materials to give important dose information on various instrumentation positions within the payload. Click here to view the Datasheet (PDF)

We offer a wide range of products to choose from. Each product allows measurement of different space radiation scenarios.

• Accurate
• Lightweight
• Simple Interface
• Customized
• Easily adapted to different spacecraft
• Mount/position at any location in the payload

Proven Track Record

Flown on Bion 10 & 11, MIR, International Space Station NASA & Russian Space Agencies in cooperation with the Canadian Space Agency.