Read this!!! This paragraph killed me!!

[IaPuP]

This is actually linked from Tom's hardware news about some new X-Ray lithogoraphy. You think they could come up with some creative name for ths system like "email burst" or something. *grin*

The entire plasma generation system is based on water-cooled diode-laser-pumped neodymium-doped yttrium aluminum garnet (Nd:YAG) oscillators, and consists of a seed pulse generator, a pre-amplifier, and four amplifiers. Each of the Nd:YAG rods is pumped by arrays of indium gallium arsenide (InGaAs) diode laser bars operating quasi-continuous wave and generating 100 W of peak power per bar. The seed pulse from the master oscillator passes into a four-pass preamplifier that increases the power from 1 mJ to 100 mJ. This output is split four ways to provide input for the amplifiers. Each of four four-pass amplifiers accepts 15 mJ and generates 250 mJ of output energy.

Crazy bunch of words, eh??

Eric

 

[Jonny]

Holy fusk, I have no idea what I just read.

 

[Howard]

I've heard of some of the mentioned stuff (especially the Nd:YAG) so I don't think he was high.

 

[etech]

That's not that bad, try reading a manual for a Japanese gas analyzer(Horiba) when the manaul is only partially translated. All the words are English, most of the syntax Japanese. That is interesting.

 

[Soccerman]

"Holy fusk, I have no idea what I just read."

LOL that's a hilarious sentence!

yeah it's got a pretty high density of techy words:normal words!

hehe.. interesting none the less.

 

[RSI]

Very interesting...

What, you didn't understand?

 

[Nih]

Wow that coulda been one whole sentence , the way it just rolled off the tongue lol

 

[rahvin]

Scary thing is I can picture the whole machine on that little paragraph. Sure I haven't heard of those types of crystals but if they are using them, they more than likely exist.

 

[etech]

The only thing I wasn't clear on was the four pass amplifiers. I've heard of class a, b and ab and so forth and high and low band pass filters, but if anyone can explain a four pass amplifier I would appreciate it.

 

[IaPuP]

Its a laser thing.

I'll look around a bit more.

Eric

edit: found a little bit

 

[Warrenton]

www.semitool.com

 

[IaPuP]

It is a special, hard to design amplifier, designed for application with Lasers, which actually passes a laser pulse through it 4 times to gain a much higher intensity.

Here's about all I could find online:

the laser beam passes through the Faraday isolator and arrives at the four-pass amplifier. The amplifier is based on two wide-aperture effective amplifier heads with YAG:Nd crystals 15 mm diameter. The length of the illuminated region is 90 mm. (The Faraday isolator, using permanent magnets and wide-aperture amplifying heads, is developed by the team of authors in IAP RAS). After the second pass through the amplifier the beam is directed to the SBS-mirror, where PC and partial pulse compression take place. During the third and fourth passes, the pulse is amplified up to an energy of 1.8-2 J, and decreased to up to 1-2 ns.

Eric

 

[phUnk]

Re: that gas analyzer. Sounds like it was in http://www.engrish.com Heheh.

 

[optoman]

We were working on something like this in school last year. Stuff like this is second hand to me. I guess that $120,000 education has finally paid off.

 

[Grminalac]

Those guys could make it easy to understand but instead make it difficult. Here is a paragraph about eating translated into technical jargon.

Imbibing vast quantities of long arrays of complex-carbohydrate strands eveloped in a colliod suspension of vegetable matter can be facilitated by raising internal temperatures. A practical method employed is bombabrding the material with microwaves; thereby stimulating the H2O of the outer layers for approximately 45 seconds. A rise in temperatures will occur and the entire medium will raise in temperrature though conduction.

In other words to heat up that cold spaghetti you might want to put it in the microwave.

 

[MGallik]

Now how would we term that for an aboriginal medicine man?

Hmmmmmm......

 

[Warrenton]

sharkeeper, that made perfect sense though. Although its been 2 years since I even did anything like that, and I can't quite figure it out, it makes sense to a person with the training.

 

[Howard]

LOL @ MGallik

 

[Mday]

it makes sense to me, after reading it slowly.

i don't know much about lithography, but it does make sense.

basically, one beam is made more powerful, and split into 4 beams each of which are then made more powerful.

and this setup is cooled by water.

(laser generators get HOT)

 

[Eli]

Sigh. Reading that "Elementry Math" post depressed me. :Q

I'm terrible at Math. Math scares me. I think it's because all my math teachers in 6-8th grade were horrendous. I never learned much in those classes. I've been dwlling on this for some time. The things that I'm intersted in are all based on math. A high level of math knowledge is a must.

Do any of you guys know a good way, or resource, to learn higher-level Math, easily?

 

[IaPuP]

Take some night classes at your local college.


Eric

 

[Eli]

I could do that I guess. I've actually got a free term at PCC (Portland Community College) this term, for getting such excellent scores on my GED..

Writing - 50 - 53 percentile <-- I must have been having a bad day, or they must have not liked my essay, cause I'm a strong writer. (Placed into and took WR121 to freshen up last year)..
Social studies - 64 - 93 percentile
Science - 66 - 96 percentile
Reading - 61 - 88 percentile
Math - 52 - 55 percentile <---

(To pass each test you must get a 40+, to pass the GED you must average 45+)

I never went to a Highchool class in my life As you can see, I'm not stupid.. I just need a little guidance(Read: good teacher) to help me with my math skills...