Search found 31 matches

by bpaddock
Sat Sep 13, 2008 12:34 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: System on a chip
Replies: 9
Views: 3501

Re: System on a chip

<r>John Hendron wrote:<br/> > There is a lot of software out there for the 8051 - an 8080 based device. <br/> <br/> 8048 was the parent of the 8051.<br/> <br/> "This platform is produced in many configurations and by many manufacturers but this is a very interesting proposition to integrally couple ...
by bpaddock
Thu Sep 11, 2008 12:56 am
Forum: Other Forms of Fusion - Theory, Construction, Discussion, URLs
Topic: More on solar fusion.
Replies: 12
Views: 4327

Re: More on solar fusion.

<r>Richard Hull wrote:<br/> <br/> > <URL url="http://fusedweb.llnl.gov/CPEP/Chart_Pages/5.Plasmas/SunLayers.html"><LINK_TEXT text="http://fusedweb.llnl.gov/CPEP/Chart_Pag ... ayers.html">http://fusedweb.llnl.gov/CPEP/Chart_Pages/5.Plasmas/SunLayers.html</LINK_TEXT></URL><br/> > This is the PPPL fusi...
by bpaddock
Sun Sep 07, 2008 12:19 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Using magnetic saturation for current regulation.
Replies: 5
Views: 1985

Re: Using magnetic saturation for current regulation.

<r>Chris Bradley wrote:<br/> >I was thinking about the possibility of saturating a transformer<br/> >with a DC bias on an isolated coil instead to regulate its total output.<br/> >Much along the ideas of the magnetic amplifier.<br/> <br/> >Any comments?<br/> <br/> <URL url="http://en.wikipedia.org/w...
by bpaddock
Mon Sep 01, 2008 12:59 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Paper linking rad decay rate to sun-earth distance?!
Replies: 29
Views: 5824

Re: Paper linking rad decay rate to sun-earth distance?!

<r>John Futter wrote:<br/> <br/> > I get a consistant error when trying to view this file<br/> <br/> You can download the paper from here,<br/> Astrophysics section of Cornell:<br/> <br/> <URL url="http://arxiv.org/abs/0808.3283v1">http://arxiv.org/abs/0808.3283v1</URL><br/> <br/> Pick PDF or PostSc...
by bpaddock
Mon Sep 01, 2008 12:59 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Paper linking rad decay rate to sun-earth distance?!
Replies: 29
Views: 5824

Re: Paper linking rad decay rate to sun-earth distance?!

<r>John Futter wrote:<br/> <br/> > I get a consistant error when trying to view this file<br/> <br/> You can download the paper from here,<br/> Astrophysics section of Cornell:<br/> <br/> <URL url="http://arxiv.org/abs/0808.3283v1">http://arxiv.org/abs/0808.3283v1</URL><br/> <br/> Pick PDF or PostSc...
by bpaddock
Fri May 30, 2008 1:45 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Current and Voltage Metering for a HV Supply
Replies: 25
Views: 7829

Re: Current and Voltage Metering for a HV Supply

<t>> Precise chemical composition of the fibers is not known (if this is relevant),<br/> <br/> Unfortunately the material does mater. Some of it is quite toxic for the Kerr<br/> type, that is generally why expensive Pockles crystals are used.<br/> <br/> > but the fiber was intended for illumination ...
by bpaddock
Fri May 30, 2008 1:40 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: this will do the trick... new IGBTs
Replies: 5
Views: 3517

Re: this will do the trick... new IGBTs

<t>> I blew the IGBTs in the driver...new IGBTs 1200V 400A full bridge...<br/> <br/> What lets the Magick Smoke out of IGTS, FETS and SCRs in most<br/> cases is turn them on to slowly, causing 'Spot Heating' of the<br/> die.<br/> <br/> Think of a FET as hundreds of thousands of very small resistors<...
by bpaddock
Wed May 28, 2008 1:10 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Current and Voltage Metering for a HV Supply
Replies: 25
Views: 7829

Re: Current and Voltage Metering for a HV Supply

<t>Wallace, Allen wrote:<br/> <br/> > The idea is to keep the HV away from meters during a fault condition.<br/> <br/> Has anyone considered, or used, optical effects like Brag,<br/> Faraday, Kerr or Pockels to measure high current/voltage? I know<br/> AB&B uses/used Pockles in some of their hig...
by bpaddock
Tue Feb 05, 2008 12:59 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Geiger Counter Possession = JAIL
Replies: 12
Views: 4065

Re: Geiger Counter Possession = JAIL

<r>>Mark Rowley wrote:<br/> > What a bunch of moronic stupidity! New York is passing a law to outlaw geiger counters and any >other type of detection equipment from the general population. This is not a joke. Read on, you will >be quite amazed.<br/> <br/> Sensors magazine had an interesting editoria...
by bpaddock
Thu Nov 22, 2007 12:37 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: NeuSheild Duct Tape
Replies: 0
Views: 1619

NeuSheild Duct Tape

<r>FYI:<br/> <br/> The Missile Defense Agency just put out their Fall 2007<br/> Quarterly TechUpdate. <URL url="http://www.mdatechnology.net">http://www.mdatechnology.net</URL><br/> [I think the site is down due to their relocation to Huntsville,<br/> that is on going.]<br/> <br/> On page five and e...