First test with eBay x-ray tube

From the creator

I found an X-ray tube on eBay and fired it up with my Spellman high voltage supply. I ran the tube at about 35-40KV at 180uA. This required a filament current of about 1.5A at 2.5V DC. With the room very dark, I could clearly see the phosphorescent screen glowing green. It wasn't bright enough for my eye to discern details in the X-ray images, but the camera with a 4 second exposure at f/5.6 and ISO400 was perfect. I took some pictures of various electronic components. I also X-rayed a dead, dried-up bumble bee, and it produced no image at all! The X-rays completely penetrated the insect without any visible absorption. I should have turned down the anode voltage, but I didn't think of this until after I threw away the bee. The tube is a Nago GFH2-0.3-85-60 Link to still images: http://benkrasnow.blogspot.com/2012/09/first-test-with-ebay-x-ray-tube.html

Published 2012-09-03 · Watch on YouTube ↗
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