Recent content by Alberto Spain

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    Aluminium+copper alloy vacuum outgassing

    Thanks for your answers. I hacve to use aluminium. I don´t have the skills nor the equipment to machine stainless steel. But since I´m going to use aluminium, is htere any problem using 2007 instead 6061 or 6082. I went for the 2007 because it is easy to machine. And about the changing in...
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    Aluminium+copper alloy vacuum outgassing

    Hello. I need to make a part for a oil difussion vacuum pump and I want to use aluminium 2007 allow. This allow contains around 4% of copper and 1,5% of lead. I don´t know if those metals can outgass during the vacuum process. That vacuum pump is supposed to reach around 5 x 10 -6 mbar or 5...
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    Is quartarad radex 1503+ or GQ GMC-300E a good geiger counter?

    Hello. I´m new here, my name is Alberto and I´m from Spain. I´m learning spanish, excuse me if I make mistakes. A friend of mine studied physics long time ago and he has a small hobby laboratory. He likes playing with physics. He told me he broke his Geiger counter and I want to give him a new...
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