Tywais Posted May 1, 2014 Share Posted May 1, 2014 I did suggest a technology topic so here we go. My high tech beverage chiller. The circuit board in the foreground is one I designed as part of an ultra high precision laser control system for the quantum optics laser lab. One of the items needed is a temperature stabilizer and this is a thermal electric cooler. Supply a voltage and you get a cold beverage. Link to comment Share on other sites More sharing options...
Tywais Posted May 1, 2014 Author Share Posted May 1, 2014 Our microwave power room. Rebuilding our cooling system in the foreground, new 6 Megawatt microwave Klystron tube installed in the back right corner, and the high power pulse generator directly in the back. Link to comment Share on other sites More sharing options...
Fiddlesticks Posted May 1, 2014 Share Posted May 1, 2014 My first attempt using the pano mode on my LG G2 mobile. Rather dark room and the distance to object was shifting so focus in center is a bit, uh off. Our 20MeV 6 Megawatt electron beam accelerator (LINAC). Things like this in the hands of Thai scare me. I can't get them to give me a good internet signal and they are playing with electron beam accelerators! Link to comment Share on other sites More sharing options...
Tywais Posted May 1, 2014 Author Share Posted May 1, 2014 My first attempt using the pano mode on my LG G2 mobile. Rather dark room and the distance to object was shifting so focus in center is a bit, uh off. Our 20MeV 6 Megawatt electron beam accelerator (LINAC). Things like this in the hands of Thai scare me. I can't get them to give me a good internet signal and they are playing with electron beam accelerators! Actually I was the project manager for building this system as I was the only one with significant experience with LINACs in the US. I heavily trained them in operation, radiation safety and high voltage procedures before I turned the keys over, and i spent several months to be sure I was satisfied with their performance. Periodically I recheck safety to be sure it hasn't slipped. This machine is below ground with thick high density concrete for radiation shielding but had to add more as the radiation could be measured on the balcony at the other building. Link to comment Share on other sites More sharing options...
Fiddlesticks Posted May 1, 2014 Share Posted May 1, 2014 My first attempt using the pano mode on my LG G2 mobile. Rather dark room and the distance to object was shifting so focus in center is a bit, uh off. Our 20MeV 6 Megawatt electron beam accelerator (LINAC). Things like this in the hands of Thai scare me. I can't get them to give me a good internet signal and they are playing with electron beam accelerators! Actually I was the project manager for building this system as I was the only one with significant experience with LINACs in the US. I heavily trained them in operation, radiation safety and high voltage procedures before I turned the keys over, and i spent several months to be sure I was satisfied with their performance. Periodically I recheck safety to be sure it hasn't slipped. This machine is below ground with thick high density concrete for radiation shielding but had to add more as the radiation could be measured on the balcony at the other building. I hear why you say but that does not make me any more comfortable. I hope the team manning this apparatus was educated somewhere other than Thailand. I just have visions of a group of Homer Simpsons playing with radioactive material ! Link to comment Share on other sites More sharing options...
Robby nz Posted May 5, 2014 Share Posted May 5, 2014 Technology has advance tremendously in my time. Heck now almost all toilet paper tears along the dotted line. Link to comment Share on other sites More sharing options...
Tywais Posted May 27, 2014 Author Share Posted May 27, 2014 Finally after over one year of our LINAC being shutdown due to a failed Klystron tube we finally got a new tube in and everything reassembled. Pressing that little red beam on button was a bit of an anxious moment but it came on line. There was a loud bang as the high voltage section arced over briefly due to room humidity too high but we tested it at 5.4 megawatt 2.856GHz RF power. I've added a video done with my LG G2 to show it in operation with sound. A static photo doesn't give you the dynamics. Link to comment Share on other sites More sharing options...
sunshine51 Posted May 28, 2014 Share Posted May 28, 2014 Tywais....outta likes. Glad to see it's up & running after so long. Good luck in future endeavours with the LINAC. Link to comment Share on other sites More sharing options...
Familyonthemove Posted May 28, 2014 Share Posted May 28, 2014 "Klystron tube" ..... you made that up! Flash Gordon used Klystron tubes to shoot Ming the Merciless. Link to comment Share on other sites More sharing options...
sunshine51 Posted May 28, 2014 Share Posted May 28, 2014 Let's see here...RF Frequency of 2.8 GHz @ 5.4MW emitted power.... That's one heck of a microwave oven! What?!...cook a 20 kilo Angus roast in 35 picoseconds...medium rare of course... Link to comment Share on other sites More sharing options...
sustento Posted May 31, 2014 Share Posted May 31, 2014 Finally after over one year of our LINAC being shutdown due to a failed Klystron tube we finally got a new tube in and everything reassembled. Pressing that little red beam on button was a bit of an anxious moment but it came on line. There was a loud bang as the high voltage section arced over briefly due to room humidity too high but we tested it at 5.4 megawatt 2.856GHz RF power. I've added a video done with my LG G2 to show it in operation with sound. A static photo doesn't give you the dynamics. Don't let your wife see that. She'll never stop complaining about how untidy all the wires are Link to comment Share on other sites More sharing options...
Tywais Posted June 7, 2014 Author Share Posted June 7, 2014 Dangerous Symmetry - Taken by LG G2 Link to comment Share on other sites More sharing options...
sunshine51 Posted June 8, 2014 Share Posted June 8, 2014 I can't help but think...homemade lightning bolts Tywais! Link to comment Share on other sites More sharing options...
Tywais Posted June 8, 2014 Author Share Posted June 8, 2014 I can't help but think...homemade lightning bolts Tywais! Been there, done that. Ok, they were Tesla coils with 1 meter arc lengths but my students kept calling it the lightning machine. Link to comment Share on other sites More sharing options...
sunshine51 Posted June 15, 2014 Share Posted June 15, 2014 I envy Tywais & his work with LINACS & physics in general. However...for many Thai's this is as close to Technology In Thailand as they will ever get... Link to comment Share on other sites More sharing options...
Ace of Pop Posted July 8, 2014 Share Posted July 8, 2014 ...Parking /Light Sensor. I drive into Garage, Clothes Peg Jumps. on comes overhead Neons. Link to comment Share on other sites More sharing options...
Tywais Posted August 19, 2014 Author Share Posted August 19, 2014 My newest toy, a new linear accelerator I've been tasked to design and build. Based on a magnetron, same thing used in a microwave oven but on steroids at 2 Megawatts, 4MeV. Its big brother in the background, 6 Megawatt 20MeV LINAC. Only can see about 25% of it in the picture, the extraction end. Link to comment Share on other sites More sharing options...
Robby nz Posted August 22, 2014 Share Posted August 22, 2014 Floating weed eater. For clearing Water Hyacinth in a park in Inburi. Picks it up and takes it and dumps it in the bank. Link to comment Share on other sites More sharing options...
Crossy Posted August 22, 2014 Share Posted August 22, 2014 My newest toy, a new linear accelerator I've been tasked to design and build. Based on a magnetron, same thing used in a microwave oven but on steroids at 2 Megawatts, 4MeV. How fast will it heat a meat pie? Many years ago, before Health and Safety was invented, we were testing radar magnetrons into a horn (no dummy load, just a red and white keep-out tape), Ginsters Cornwall's Pride pasty to eating temp in about 5 minutes (average power was only about 250Watts) Link to comment Share on other sites More sharing options...
Tywais Posted August 22, 2014 Author Share Posted August 22, 2014 My newest toy, a new linear accelerator I've been tasked to design and build. Based on a magnetron, same thing used in a microwave oven but on steroids at 2 Megawatts, 4MeV. How fast will it heat a meat pie? Many years ago, before Health and Safety was invented, we were testing radar magnetrons into a horn (no dummy load, just a red and white keep-out tape), Ginsters Cornwall's Pride pasty to eating temp in about 5 minutes (average power was only about 250Watts) This one has a very low duty cycle, as do most radar type magnetron microwave systems. 4us pulse at 400 pulses per second but still average power is 3kW. Enough that we have a closed loop water cooling system for it and associated components. A nice coffee warmer. Link to comment Share on other sites More sharing options...
Tywais Posted August 23, 2014 Author Share Posted August 23, 2014 More boring stuff. 150 kilovolt Nitrogen/Argon ION beam implanter. Originally used for semiconductor production in a research environment. Now has been used for genetic mutation of rice and flowers. Currently mainly used in gemstone modification to improve or change color and clarity. Target chamber on far right with the small window in it to change samples. The control console: And what the beam looks like on a fluorescent screen: Link to comment Share on other sites More sharing options...
Tywais Posted August 29, 2014 Author Share Posted August 29, 2014 I appear to be hogging this topic. Our 20 million baht research tool XPS (X-ray photoelectron spectroscopy). Hard to explain so link to WiKi. Link to comment Share on other sites More sharing options...
fimgirl Posted August 29, 2014 Share Posted August 29, 2014 Well, Tywais, thank heavens for the Wiki link Makes Hawking's "A Brief History of Time" easy reading ! Nice pic though flight deck of a Sikorsky military helicopter Link to comment Share on other sites More sharing options...
Tywais Posted September 10, 2014 Author Share Posted September 10, 2014 I figure Videography is also photography but with motion. We had a student tour of our accelerator facility today, 5 groups of 12 students. I leave my Panasonic GH2 with its 14-140mm silent (video) lens at the office now and my Olympus at home. Best viewed at full 1080 HD and full screen to see the quality. Link to comment Share on other sites More sharing options...
Ace of Pop Posted September 15, 2014 Share Posted September 15, 2014 . Where does this bit go?............ Link to comment Share on other sites More sharing options...
sunshine51 Posted September 17, 2014 Share Posted September 17, 2014 ^^^ How did this get broken O? Link to comment Share on other sites More sharing options...
sunshine51 Posted September 17, 2014 Share Posted September 17, 2014 ^^^ That's good news! Link to comment Share on other sites More sharing options...
klauskunkel Posted October 29, 2014 Share Posted October 29, 2014 Link to comment Share on other sites More sharing options...
FracturedRabbit Posted November 6, 2014 Share Posted November 6, 2014 Processing rice: PA160119-Edit-2 by pattayadays.com, on Flickr Link to comment Share on other sites More sharing options...
Robby nz Posted November 29, 2014 Share Posted November 29, 2014 Low tech but innovative for all that. Home made gadget for a continuous pour of concrete, along the top of the river embankment wall. Link to comment Share on other sites More sharing options...
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