Search found 119 matches

by Larry Upjohn
Fri May 17, 2013 7:02 pm
Forum: Fusion --- Past, Present, and Future
Topic: "Tooting one's own horn"
Replies: 11
Views: 6138

Re: "Tooting one's own horn"

Richard;
congratulations on recognition richly deserved. Larry Upjohn
by Larry Upjohn
Tue Oct 16, 2012 11:32 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Fusor like source for activation
Replies: 5
Views: 2066

Re: Fusor like source for activation

<t>Carl;<br/> I do remember your adventure with the Linac. I forwarded the link looking more at the article title rather than the content which basically outlines a method that you had demonstrated here already. I should not forward links until a.) I have had more morning caffiene and b:) I have acc...
by Larry Upjohn
Tue Oct 16, 2012 8:26 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Fusor like source for activation
Replies: 5
Views: 2066

Re: Fusor like source for activation

<r>Dennis;<br/> I often see reports such as this as clues to activities that might provide useful insight here. Here is a link to the paper that I was thinking about when I posted my link this morning: <br/> <br/> <URL url="http://fti.neep.wisc.edu/pdf/fdm1216.pdf">http://fti.neep.wisc.edu/pdf/fdm12...
by Larry Upjohn
Tue Oct 16, 2012 4:18 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Fusor like source for activation
Replies: 5
Views: 2066

Fusor like source for activation

<r>Good morning from the left coast. Just got this email link and thought I would pass it along. This is an area of personal concern since the source reactors are old and have been unreliable sources of medical isotopes for some time. I have not had time yet to research this thread for an tech infor...
by Larry Upjohn
Fri Oct 12, 2012 8:12 pm
Forum: Vacuum Technology (& FAQs)
Topic: Welch 1400 leaking vacuum oil. How to fix it?
Replies: 3
Views: 2051

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

<t>David;<br/> I purchased a much older model of Welch 1400 than yours and it came with the identical leak. I purchased the repair kit from Duniway and it was delivered promptly. I had downloaded the Welch DuoSeal 1400 pump manual and it gives instructions on performing this seal replacement. My pum...
by Larry Upjohn
Thu Aug 09, 2012 10:28 pm
Forum: Fusion --- Past, Present, and Future
Topic: The Neutristor
Replies: 8
Views: 4934

Re: The Neutristor

<r>I went to the website: <URL url="http://www.adelphitech.com/">http://www.adelphitech.com/</URL><br/> and the equipment looks like a well funded fusor lab with new instrumentation but of course the vacuum equipment, etc. is pretty much the same. I did not explore all of the site so I did not see a...
by Larry Upjohn
Mon Mar 05, 2012 11:20 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: New MCA
Replies: 13
Views: 9242

Re: New MCA

<t>Carl;<br/> I wanted ask how vital is the IDL virtual machine for using the rest of the MCA package. I seem to be blocked from downloading the IDL virtual machine from the home website. <br/> I have an older Nuclear Data MCA that is already microprocessor controlled. The electronics contained ther...
by Larry Upjohn
Fri Sep 23, 2011 12:23 am
Forum: Vacuum Technology (& FAQs)
Topic: Varian 843 manual
Replies: 2
Views: 2297

Re: Varian 843 manual

<r>Andriy;<br/> I have just purchased manuals from this firm at:<br/> <br/> <URL url="http://www.manualsplus.com/catalog/mp_find.php">http://www.manualsplus.com/catalog/mp_find.php</URL><br/> <br/> They have been very responsive and will look up the manual to make sure it is a full manual. I checked...
by Larry Upjohn
Tue Jun 21, 2011 5:26 pm
Forum: Other Forms of Fusion - Theory, Construction, Discussion, URLs
Topic: Beam-target neutron generator project
Replies: 11
Views: 7081

Re: Beam-target neutron generator project

<t>Carl;<br/> MuggyWeld struck a gray cell back there and I think I may have asked this question previously. The website and the videos also struck a bell. I will post my results when completed. I had just purchased some 360 brass rod to redo the flange and avoid the Al to Brass bonding issue, howev...
by Larry Upjohn
Mon Jun 20, 2011 5:29 pm
Forum: Other Forms of Fusion - Theory, Construction, Discussion, URLs
Topic: Beam-target neutron generator project
Replies: 11
Views: 7081

Re: Beam-target neutron generator project

<t>Carl, You wrote:<br/> Next in the photo lineup are various shots taken during construction of the oil-sealed two-conductor HV feedthrough. The feedthorugh lip is soft-silver-soldered to the chamber. Oil-vacuum seals are viton o-rings captured in 5/16x24" brass acorn nuts. The 100-kV silicone cabl...