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Author Topic: Xenon Bulb Inards Robert Burtcher Expert Film Handler Posts: 194 From: Oklahoma City, Oklahoma Registered: Jun 2005 posted 03-15-2006 05:13 AM                     quote: I'd be more thinking about the radioactive americium in the bazillion ionization-chamber smoke detectors around that many of us sleep under. [Wink] Americium == Alpha radiation == yawn. Alpha particles can be stopped by a sheet of paper. "The alpha particles from the smoke detector do not themselves pose a health hazard, as they are absorbed in a few centimetres of air or by the structure of the detector." (src: http://www.uic.com.au/nip35.htm)  |  IP: Logged Louis Bornwasser Film God Posts: 4441 From: prospect ky usa Registered: Mar 2005 posted 03-15-2006 09:18 AM                        I think I'll just worry about being run down by a runaway locomotive! Louis  |  IP: Logged Gerard S. Cohen Jedi Master Film Handler Posts: 975 From: Forest Hills, NY, USA Registered: Sep 2001 posted 03-15-2006 03:55 PM                     Since both anode and cathode are shaped like projectiles, I wonder if they are suitable calibers to fit rifle shell casings? (If I remember correctly, the cathode is about the diameter of a .22, and the anode, a .45 caliber.) Perhaps a reloading hobbyist might experiment. Since tungsten is a very hard metal, they might serve as armor-piercing bullets, though that hardness might damage the lands on a rifle barrel. They might also be useful as balance-beam scale weights, for darkroom chemical measurement. [ 03-16-2006, 11:45 AM: Message edited by: Gerard S. Cohen ]  |  IP: Logged Phil Hill I love my cootie bug Posts: 7595 From: Hollywood, CA USA Registered: Mar 2000 posted 03-15-2006 11:49 PM                  Robert & Louis = BIG YAWN! Apparently yous didn't "get" my "wink"... DUH! Gerard: Interesting, and provocative post.  |  IP: Logged Monte L Fullmer Film God Posts: 8367 From: Nampa, Idaho, USA Registered: Nov 2004 posted 03-16-2006 04:33 AM                     quote: Phil Hill and does make a great paperweight. ..get a small 6inch square box, fill that box with those 3/4 lb anode plugs from spent 4k bulbs and that's quite a mass to straightarm across (what's even amass is a box of 1 lb plugs from spent 6k bulbs) Can you see making a plumb bob with a 4k plug? ... - Monte  |  IP: Logged Dick Vaughan Phenomenal Film Handler Posts: 1032 From: Bradford, West Yorkshire, UK Registered: Jul 2000 posted 03-16-2006 07:55 AM                        quote: Gerard S. Cohen (If I remember correctly, the cathode is about the diameter of a .22, and the anode, a .45 caliber.) Well the cathode on my 7kw's are 12mm so they'd almost fit a .50 cal Browning and the anode's are 25mm diameter.They should fit this quite nicely That's what I call a nice weapon for self defense  |  IP: Logged Monte L Fullmer Film God Posts: 8367 From: Nampa, Idaho, USA Registered: Nov 2004 posted 03-17-2006 03:08 AM                     ..that would bring down a King Tiger II tank...  |  IP: Logged Dave Macaulay Film God Posts: 2321 From: Toronto, Canada Registered: Apr 2001 posted 03-20-2006 03:47 PM                     The half-life describes the time something takes to become half as radioactive. So your doomsday bomb radioactive cloud might still be lethal for hundreds of years, or just become annoying before the half-life has passed... I have a tritium "lamp" that's still useably bright 2 half-lifes (25 years) after manufacture.  |  IP: Logged Thomas King Expert Film Handler Posts: 119 From: Sheffield, Yorkshire, England Registered: Oct 2004 posted 03-21-2006 06:54 AM                        I was going to make a key fob out of our old electrode, but a) it was bigger than I expected b) I saw that episode of House. Now it just kicks around my desk. On a related note: how do people get rid of their bulbs? I derive great satisfaction from throwing them down a flight of steps.  |  IP: Logged Randy Stankey Film God Posts: 6539 From: Erie, Pennsylvania Registered: Jun 99 posted 03-21-2006 12:10 PM                     Mostly, I put them into the dumpster and turn on the compactor. It's fun to hear them go "POW!!" when they break. Any flying glass particles are contained inside the steel dumpster. But, every once in a while, I like to take them out back, in the woods, prop them up on an old tree stump and shoot them with a .22 rifle! It's a spectacular sight! Some day, I'm going to get a video of one as it bursts!  |  IP: Logged Monte L Fullmer Film God Posts: 8367 From: Nampa, Idaho, USA Registered: Nov 2004 posted 03-21-2006 01:06 PM                     Yea, it's pretty cool seeing one explode without the shield. We use to toss them out and down to the pavement from up on the roof..pretty cool "hand genades" - seeing how much that quartz do fly in all directions when it's not contained.  |  IP: Logged Alexander Smith Expert Film Handler Posts: 128 From: Walney Island, Barrow-in-Furness, Cumbria. Registered: Jun 2003 posted 03-24-2006 01:22 PM                     A video of a xenon being shot! I can't wait... :-) I think my fellow cow-orkers would like to see that also. Alex.  |  IP: Logged John Pytlak Film God Posts: 9987 From: Rochester, NY 14650-1922 Registered: Jan 2000 posted 03-24-2006 09:02 PM                        I recall that NASA once had a xenon safety training film that showed a very large (15KW?) lamp being hit by a metal weight swinging in as a pendulum. The slow-motion explosion of the lamp with quartz flying in all directions was quite impressive! Does anyone recall this film, or know where a copy can be found today?  |  IP: Logged Kyle Anderson Film Handler Posts: 86 From: Tyler, TX, USA Registered: Dec 2005 posted 03-28-2006 09:30 PM                     Hmm... wouldn't it be even cooler if the lamp was lit at the time it was shot?  |  IP: Logged Randy Stankey Film God Posts: 6539 From: Erie, Pennsylvania Registered: Jun 99 posted 03-28-2006 11:31 PM                     The neat thing about shooting something with a small caliber round like a .22 is that it flies very fast and imparts very little of its energy into the target unless it is stopped by something harder and more massive than itself. Thus, when a xenon lamp is shot with a .22 the slug, pretty much, blows right on through. The explosion isn't affected by the inertia of a falling weight. You get a nice radial explosion pattern. When surveying the damage of an exploded 4,200 watt lamp I have found substantial chunks of glass, an inch in diameter, more than 20 feet away! I think I should make an exploding xenon video. I plan to put the camera behind a piece of 1/2" plywood with a plexiglass window in it. I will shoot from at least 50 yards away. That's safe enough. Besides, my rifle is sighted in for that distance. I was thinking of putting a Styrofoam wig head next to the lamp when I blow it up just to show the potential for damage to a person. How about I compare a 4,000 lamp's explosion to a 15K? Anybody have any old lamps they want to see get blown up?  |  IP: Logged

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