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Invisible 'dark radiation' may explain a big problem with dark energy

New Scientist

Surprising recent measurements hint that the universe isn’t expanding in the way we had thought, and it could be explained by still-theoretical dark radiation

Radiation 143
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Introducing the non-radiating antenna

Physics World

An international team of physicists has created what might seem like a contradiction in terms: a non-radiating source of electromagnetism. Maxwell’s equations tell us that accelerating charges radiate energy in the form of electromagnetic waves. cm above the non-radiating source prototype.

Radiation 145
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Potato plant radiation sensors could one day monitor radiation in areas surrounding power plants

Environmental News Bits

… Continue reading Potato plant radiation sensors could one day monitor radiation in areas surrounding power plants Radioactive pollution damages the environment, and it’s nearly impossible to detect without specialized equipment.

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Scatter imaging during lung stereotactic body radiation therapy

Physics World

Due to breathing motion, lung tumours move during stereotactic body radiation therapy (SBRT). Scatter imaging, which collects photons scattered out of the radiation therapy beam, is a potential technique for real-time tracking of lung tumours. His research focuses on developing novel imaging techniques to guide radiation therapy.

Radiation 128
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Terahertz radiation is created using semiconductor surface states

Physics World

A highly efficient way to convert optical photons into terahertz radiation has been developed by researchers in the US and Germany. Terahertz radiation falls between infrared light and microwaves in the electromagnetic spectrum and has a range of potential applications including security scanning and medical imaging.

Radiation 125
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Novel brachytherapy device treats eye cancer with intensity-modulated radiation

Physics World

Plaque brachytherapy treatments deliver radiation to eye tumours via radioactive sources called pellets or seeds, which are placed in a device called a plaque that is sewn onto the surface of the eye. The post Novel brachytherapy device treats eye cancer with intensity-modulated radiation appeared first on Physics World.

Radiation 145
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Carbon nanotubes help space-bound electronics resist radiation damage

Physics World

As space missions venture ever further afield, spacecraft will inevitably be exposed to greater amounts of cosmic radiation that can damage or even destroy their onboard electronics. Cosmic radiation is ionizing radiation made up of a mixture of heavy ions and cosmic rays (high-energy protons, electron and atomic nuclei).

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