Search found 37 matches

by Ameen Aydan
Tue Jul 17, 2018 2:52 am
Forum: New User Chat Area
Topic: Should I Buy the Pump?
Replies: 2
Views: 150

Re: Should I Buy the Pump?

sorry I forgot to add the rest of the pictures:
by Ameen Aydan
Tue Jul 17, 2018 2:43 am
Forum: New User Chat Area
Topic: Should I Buy the Pump?
Replies: 2
Views: 150

Should I Buy the Pump?

Hello, Recently I got the offer for $200US for this pump on ebay. By the looks of it, it seem to be the most amazing one I have ever seen. It comes with a cryogenic cold trap so there is no need to worry about the back draft. The unit is 550 watts and is said to be in working condition pulled strait...
by Ameen Aydan
Sat Jul 14, 2018 5:45 pm
Forum: Books & References
Topic: Answer keys w/ explanation?
Replies: 19
Views: 855

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: 855

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: 855

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: 855

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: 855

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 ...
by Ameen Aydan
Fri Jul 06, 2018 6:03 pm
Forum: Books & References
Topic: Answer keys w/ explanation?
Replies: 19
Views: 855

Re: Answer keys w/ explanation?

Hello It is true that I am not very gifted, the most I've ever done was a fast track through my grade 8 math course straight to grade 9 math. I would imagine that it is not that big of a deal in the fusor community. This summer I am devoting my time to studying the knowledge needed for a fusion reac...
by Ameen Aydan
Thu Jul 05, 2018 10:41 pm
Forum: Books & References
Topic: Answer keys w/ explanation?
Replies: 19
Views: 855

Re: Answer keys w/ explanation?

Just to start this rolling, I will ask the first question from the book Introductory Nuclear Physics by David Halliday 2nd edition. The question is from page 22 of the first chapter Basic Nuclear Concepts A Tantalum foil (A=181) has 1.0% of its projected area blocked out by nuclei. How thick is the ...
by Ameen Aydan
Thu Jul 05, 2018 10:14 pm
Forum: Books & References
Topic: Answer keys w/ explanation?
Replies: 19
Views: 855

Answer keys w/ explanation?

hello, I just received my books Nuclear Radiation Physics by Ralph E. Lapp and introduction to Nuclear Physics by David Halliday as well as some inherited books like Principles of Electronic Circuits or Radiologic Science for Technologists. looking through the books, it is very hard to grasp for a 1...