Vad är XFEL?

 

Europeiska XFEL är en forskningsanläggning som började byggas utanför Hamburg i Tyskland 2009. När anläggningen tas i drift 2015 kommer den att användas för att generera extremt intensiva röntgenstrålar (ljuskällor) med egenskaper som liknar laserljus. Det ultrakorta ljuset blinkar 27 000 gånger per sekund och med en briljans som är en miljard gånger högre än den för de bästa konventionella röntgenstrålkällorna.  Där kommer att finnas flera extremstarka ljuskällor med olika egenskaper som gör anläggningen unik i hela världen.

Genom XFEL öppnas nya forskningsområden som tidigare var otillgängliga. Här kommer forskare att kunna kartlägga atomerna i virus och cellernas molekylära sammansättning, vilket utgör en viktig grund för framtida läkemedel.  Vidare blir det möjligt att ta tredimensionella bilder av nanoworld och filma kemiska reaktioner och processer, till exempel de som förekommer djup inne i planeter.

Anläggningen blir mer än tre kilometer lång. Det börjar vid DESY-anläggningen i Hamburg-Bahrenfeld och sträcker sig till staden Schenefeld, där huvudbyggnaden med dess underjordiska experimenthall kommer att placeras. Den första delen av anläggningen är en 1,7 kilometer lång tunnel för partikelacceleratorn som genererar klasar av elektroner till höga energier i nästan ljusets hastighet. Tunneln kommer att vara belägen cirka 38 meter under jord.

 

XFEL:s webbplats: http://www.xfel.eu/

 

 

 

 

Wilson halfway through his Lenten fast

”I was hungry the first couple of days, but after that, the hunger is gone,” said Wilson, editor of the weekly Adams County Press. ”I’m not hungry.”

Wilson said he was down to 145 cheap jerseys pounds Thursday, 15 off his starting weight of 160 on Ash Wednesday, March 9. His kidney function drew some attention during a visit to the doctor this week, but that’s easily controlled by more water consumption, Wilson says.

”At this point I’ve chewed up all the old hamburgers and doughnuts, and I’ve used up all my body fat,” the married father of two said. ”Now my body has turned on itself and is eating its own protein, and that’s clogging the kidneys.”

Wilson, who describes himself as a nondenominational Christian, says he’s drinking four 12 ounce, 288 calorie Doppelbocks a day on weekdays, and five a day on the weekends. So far, that comes to about 11 gallons of beer.

”I just killed my first two kegs,” cheap jerseys shop said Wilson, 38. ”I have one keg set up at home and one set up wholesale nba jerseys at work and they both ran out at the same time.”

At the outset, Wilson also said he aimed to not be drunk at any point during the fast, a pledge he amended slightly on Thursday.

”If you walk in the rain, you’re going to get wet,” Wilson said. ”It’s not a 46 day hammerfest. That’s what I meant when I said that originally.

”From time to time, if I have an appointment, I have to move my beers around. If I have to have two beers in quicker succession than I would like, sure you might get a little tipsy. But I haven’t been sloshed the last three weeks.

”It’s taken some effort to pay attention to the clock and to what my obligations are, and I just have to sort that all out. But it’s worked out well.”

It’s brought him some notoriety, too.

”It’s been all over wholesale nhl jerseys the world,” Wilson said. ”I’ve seen blog posts from Russia and South America and Europe. I heard Jimmy Fallon was making fun of me the other day, so that’s pretty cool.”

Not to mention the endless parade of morning radio requests, which Wilson says he’s stopped doing for now. But he blogs about the fast daily.

With Easter Sunday and the end of his fast still more than three weeks away on April 24, Wilson already has a few foods in mind for his return to normal eating.

”I’ve got three days planned out,” he said. ”Easter Sunday will be mostly smoothies. If I feel like I can hack it probably some guacamole and chips or something like that. I’m really missing Mexican food. Maybe a bacon sandwich on Monday and some more smoothies, and firing up a serious Mexican spread on Tuesday.”

”Absolutely,” he said. ”I’m completely sick of it. I was sick of it probably four or five days in.”.Articles Connexes: