Search found 10 matches

by davidgrzan
Wed Mar 13, 2013 12:38 am
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: Grid Shielding - Testing with Results
Replies: 13
Views: 7339

Re: Grid Shielding - Testing with Results

<t>Chris Bradley,<br/> Thank you for the simulation idea I will download it soon. To answer your question, the experiment was to test different methods of shielding the grid from ion impacts. The magnets were supposed to create an area void of plasma around the grid wires, decreasing the amount of c...
by davidgrzan
Tue Mar 12, 2013 1:44 am
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: Grid Shielding - Testing with Results
Replies: 13
Views: 7339

Re: Grid Shielding - Testing with Results

<t>Are there any simulators out there that could replicate the setup I have here with the magnets? I've tried using a few ones found on the internet but they don't have the flexibility of making something similar to this. I think it would help a lot to try different things on a simulation before imp...
by davidgrzan
Wed Feb 27, 2013 12:15 am
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: Grid Shielding - Testing with Results
Replies: 13
Views: 7339

Re: Grid Shielding - Testing with Results

<t>I think I get what you are saying. Basically if there is more current being drawn there will be more ions, making the grid heat up faster. But more ions means more fusion, helping efficiency.<br/> <br/> On another note, I was moved up to the regional JSHS (Junior Science and Humanities Symposium)...
by davidgrzan
Sun Feb 24, 2013 7:40 pm
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: Grid Shielding - Testing with Results
Replies: 13
Views: 7339

Re: Grid Shielding - Testing with Results

<t>I've attached my research paper if anyone wants to see. <br/> <br/> In response to Tyler Christensen, I set up a voltage meter but not a current meter. So are you saying that the temperature of the cathode affects the current if I were to measure it? If that's the case it would be a great way to ...
by davidgrzan
Sun Feb 24, 2013 5:28 am
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: Grid Shielding - Testing with Results
Replies: 13
Views: 7339

Grid Shielding - Testing with Results

<t> Today was the award ceremony of the regional science fair I competed in so I decided to share what I found during my research. I built a demo fusor and tested grid shielding methods as it was one of the few areas that could be tested without fusion occurring. I received a couple awards and was s...
by davidgrzan
Thu Nov 22, 2012 4:35 am
Forum: Fusor Construction & Operation (& FAQs)
Topic: Demo Fusor - First Test Runs with Pictures
Replies: 7
Views: 3543

Re: Demo Fusor - First Test Runs with Pictures

<t>Will Jack,<br/> <br/> I remember seeing the pictures you had of your demo fusor and of your videos too! Didn't you do something with a science fair? I am really curious to what it's like as I'm going into this solo and have no experience with science fairs. Unfortunately I am not moving on to fus...
by davidgrzan
Thu Nov 22, 2012 4:18 am
Forum: Fusor Construction & Operation (& FAQs)
Topic: Demo Fusor - First Test Runs with Pictures
Replies: 7
Views: 3543

Re: Demo Fusor - First Test Runs with Pictures

<r>Here is the youtube video: <URL url="https://www.youtube.com/watch?v=RN1iDN-5QXs">https://www.youtube.com/watch?v=RN1iDN-5QXs</URL><br/> <br/> I have mechanically assembled a new outer grid today using 1/4" copper tubing. It's a lot better than the solder I used to connect my first grid because i...
by davidgrzan
Tue Nov 20, 2012 11:08 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Demo Fusor - First Test Runs with Pictures
Replies: 7
Views: 3543

Demo Fusor - First Test Runs with Pictures

<t>I have recently finished constructing my demo fusor and wanted to share my progress along with some pictures. I don't think I will be moving on to actual fusion because college is soon and it would cost quite a bit of money to convert this into a fusor. I still need to perform my experiment on it...
by davidgrzan
Fri Oct 12, 2012 8:17 pm
Forum: Vacuum Technology (& FAQs)
Topic: Welch 1400 leaking vacuum oil. How to fix it?
Replies: 3
Views: 2176

Re: Welch 1400 leaking vacuum oil. How to fix it?

Yes thank you guys for the responses. I bought the shaft seal replacement on eBay but before that I took the pulley apart to make sure it was the source of the leak. The original seal had been bent so I think that is why it was leaking.
by davidgrzan
Thu Oct 11, 2012 2:25 am
Forum: Vacuum Technology (& FAQs)
Topic: Welch 1400 leaking vacuum oil. How to fix it?
Replies: 3
Views: 2176

Welch 1400 leaking vacuum oil. How to fix it?

<t>I have just tested the vacuum pump I bought on ebay. It pulls down to 30 Hg which I'm guessing is close to 20 microns (not a good gauge I know). But the pump leaks oil while flinging it into the air as the wheel is spinning. I have found the source of the leakage and I have looked on this forum f...