First mobile run: Keio team

We’ve been working with some people from Keio University and earlier this week they took one of our sensors (0008 to be specific) on a drive north through some areas that have had no radiation data reported at all. At this point each geiger counter we have has it’s own flickr account where photos of…

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Background Information About Radiation and What It Does

What is Radiation? Radiation refers simply to energy moving through space or through matter. There are many different kinds of radiation:  radio waves, heat, visible light, ultraviolet rays, to name just a few. However, usually when people refer to ‘radiation’ they are referring specifically to “ionizing radiation”. This type of radiation has the ability to kick an electron…

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Potential Causes of Misunderstandings of Fukushima Reactor Problems

Editor’s Note: Joel M. holds a Ph.D. in Biology and currently resides in Tokyo, Japan. He has volunteered his time and insights to the RDTN.org blog. The panic in the media outside Japan, well, I can certainly understand that.  Totally aside of understanding the technical matters involved, I think a lot of the panic is honest misunderstandings due…

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Guest Contribution: A Discussion on Radiation and Radioactive Material

Editor’s Note: Alan Stinchcombe is a retired physics teacher who resides in Suffolk, UK. He is currently collaboratively writing a school textbook on computer science. Radioactive fission or other decay processes occurring in radioactive materials can produce nuclear radiations such as gamma rays and neutrons that have substantial ranges in air.  Industrial or therapeutic exposure to…

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