Old 04-23-2009, 03:13 AM #1
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Default World's first "hard" X-Ray laser

Free electron laser creates hard x-rays - doesn't say anything about wattage or power, but still an interesting article.

http://home.slac.stanford.edu/pressr...9/20090421.htm


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Old 04-23-2009, 03:45 AM #2
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Default Re: World's first "hard" X-Ray laser

Cool. Next, gamma rays. ;D
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Old 04-23-2009, 02:13 PM #3
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Default Re: World's first "hard" X-Ray laser

From a physorg article (the forum won't let me post the link since I don't have enough posts yet):

"The power contained in a single pulse from the LCLS is estimated to be in the neighborhood of a few billion watts—a tremendous amount to be sure. However, that power will be compressed into an unimaginably tiny sliver of time: around 100 femtoseconds, or one-tenth of a quadrillionth of a second. Because the pulses are so short, the total energy of the beam is relatively low, about 2 millijoules.

Despite their brevity, the momentary burst of X-rays still packs enough punch to instantaneously destroy most materials, a critical consideration for sensor design. Additionally, the sensor must be able to measure pulses at the full repetition rate of 120 per second. "

So if your CW power meter were sensitive to this beam it would read about 240 mW for the average power.
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