Search found 64 matches

by Ameen Aydan
Wed Dec 19, 2018 6:01 pm
Forum: Vacuum Technology (& FAQs)
Topic: Cleaning/Repairing Edwards E2M5
Replies: 27
Views: 16846

Cleaning/Repairing Edwards E2M5

Hello, I just received an Edwards E2M5 vacuum pump in the mail for about $180. It looks good on the outside but is missing the inlet flange and exuaght cap (which doesn't matter). I plugged it in and it powers up perfectly fine. I don't have new oil or a vacuum gage to test its power. Even if I did ...
by Ameen Aydan
Wed Dec 12, 2018 2:09 am
Forum: Fusion --- Past, Present, and Future
Topic: Wendelstein 7-X has successfully finished its second major experimental run
Replies: 27
Views: 25561

Re: Wendelstein 7-X has successfully finished its second major experimental run

I sincerely apologize about this. I thought it would be better off erasing it since I thought it wasn't accurate after reading the provided text briefly. I just didn't want any inaccurate information to spoil my post. I really am sorry. I also didn't know that we aren't allowed to edit our posts. I ...
by Ameen Aydan
Tue Dec 11, 2018 5:13 am
Forum: Fusion --- Past, Present, and Future
Topic: Wendelstein 7-X has successfully finished its second major experimental run
Replies: 27
Views: 25561

Re: Wendelstein 7-X has successfully finished its second major experimental run

It's very nice to see the Wendelstein 7-X break records! When I first heard of it I thought it would be another one of those hoax machines but I must say, they're doing very well compared to other multi-billion dollar rearch facilities. Now, I would just like to ask a question. What do you think wou...
by Ameen Aydan
Thu Aug 23, 2018 11:12 pm
Forum: Vacuum Technology (& FAQs)
Topic: Can I make my own ConFlat flanges?
Replies: 28
Views: 13107

Re: Can I make my own ConFlat flanges?

Hello, I recall further back in this thread that John Futter mentioned that I can get some ConFlat flanges from China at cheaper than the material costs. IS this true? If so, can anybody reference where to get them? As well, would they be of any lesser quality than the average you can purchase from ...
by Ameen Aydan
Thu Aug 23, 2018 10:52 pm
Forum: Vacuum Technology (& FAQs)
Topic: MKS 901p
Replies: 58
Views: 38146

Re: MKS 901p

Hello, I am very bad at anything that comes to computer programing so I apologize if I sound very inexperienced. I remember Andrew Seltzman posting code on this thread. He said that it is possible to use Matlab as a program to properly interpret the signals. I'm imagining that you use the analog out...
by Ameen Aydan
Sat Jul 14, 2018 5:45 pm
Forum: Books & References
Topic: Answer keys w/ explanation?
Replies: 19
Views: 15768

Re: Answer keys w/ explanation?

Hello again, While reading the two books, I always came across these very weird values that were basically inverse. Some examples are sec^-1 or cm^-3 or even K^-1. My closest guess is that it corresponds to a smaller value such as cm^-3 is really just mm^3 or that sec^-1 is just millisecond. I'm not...
by Ameen Aydan
Sat Jul 14, 2018 12:19 am
Forum: Books & References
Topic: Answer keys w/ explanation?
Replies: 19
Views: 15768

Re: Answer keys w/ explanation?

Hello, Sorry about the late reply I had family things to attend to, it is the summer after all. After considering what Rich and Dennis said I crunched some numbers. 1.0% of 1 cm^2 is 0.01 cm^2. From what I understand you want me to find how many nuclei fit in the 0.01 cm^2 which can also be written ...
by Ameen Aydan
Sat Jul 07, 2018 5:48 pm
Forum: Books & References
Topic: Answer keys w/ explanation?
Replies: 19
Views: 15768

Re: Answer keys w/ explanation?

the website is

http://hyperphysics.phy-astr.gsu.edu/hb ... ec.html#c1

sorry for some reason it wasn't loading. The equation is:

Image
by Ameen Aydan
Sat Jul 07, 2018 5:46 pm
Forum: Books & References
Topic: Answer keys w/ explanation?
Replies: 19
Views: 15768

Re: Answer keys w/ explanation?

The method i'm using now is off of a website that talks about cross section and scattering. On there, there is an equation that represents this. What I thought of doing was rearranging it so i]I can solve for the thickness. Here is the website: http://hyperphysics.phy-astr.gsu.edu/hbase/Nuclear/cros...
by Ameen Aydan
Sat Jul 07, 2018 3:30 am
Forum: Books & References
Topic: Answer keys w/ explanation?
Replies: 19
Views: 15768

Re: Answer keys w/ explanation?

Hello, In order to find the atomic number density I used the equation you have linked: N=ρNa/M The values I used where ρ = 16g/cm^3; Na = 6.022 x 10^23 nuclei/mole; and M = 181 The value I received for N = 5.32 x 10^22 atoms of tantalum/cm^3 The cubed root of this value is approximately 3.76 x 10^7 ...