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Medical physics and biotechnology: highlights of 2021

Physics World

A team from Dartmouth has developed a method to convert a standard clinical linear accelerator (linac) used for radiation therapy to deliver a FLASH-capable, ultrahigh-dose rate radiotherapy beam. Photon counting CT, however, enables one-step conversion straight from X-ray photons into an electrical current.

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Solar energy is superior to nuclear for powering crewed mission to Mars, show scientists

Frontiers

A crewed mission to Mars will require transporting equipment for creating electricity to power life support systems. This required modeling and accounting for a number of factors, such as how gasses and particles in the atmosphere might absorb and scatter light, which would affect the amount of solar radiation at the planet’s surface.