Search found 124 matches

by AllenWallace
Fri Jan 23, 2004 12:40 am
Forum: Books & References
Topic: Compact accelerator neutron generators
Replies: 4
Views: 5484

Compact accelerator neutron generators

<r>I saw this excellent link in the Industrial Physicist online magazine.<br/> <br/> <URL url="http://www.aip.org/tip/INPHFA/vol-9/iss-6/p22.html">http://www.aip.org/tip/INPHFA/vol-9/iss-6/p22.html</URL><br/> <br/> It shows a diagram of a "Schematic design of a sealed-tube neutron <br/> generator wi...
by AllenWallace
Sat Dec 13, 2003 3:02 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Using a Flyback
Replies: 13
Views: 5510

Re: Using a Flyback

<t>I agree with Richard, a single flyback is very weak compared to neon sign transformer. However, I did try a flyback and it will power a demo fusor, but weakly. The posier is plainly visible, but *very* dim compare a NST. <br/> <br/> The Flyback in computer monitors and TV generally have build-in ...
by AllenWallace
Mon Dec 01, 2003 1:52 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Recent neutron background checks here.
Replies: 2
Views: 1448

Re: Recent neutron background checks here.

<t>Your Hi/Low readings are most puzzling. I’ve studied some information on background neutron radiation, and I know that the neutron rate are very similar world wide. The neutron charts for the Russian, U.S. and antarctic stations are virtually identical. These stations are adjusted for barometric ...
by AllenWallace
Mon Aug 04, 2003 1:38 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Check Sources
Replies: 13
Views: 3744

Re: Check Sources

<t>You must be licenced to posses *any* amount of plutonium, even a nano-Curies amount. This has always intrigued me, as your can purchase products made with Depleted Uranium products, and it appears that D.U. can have measurable amounts of plutonium. So, I’m wondering if the uranium marble I bought...
by AllenWallace
Sat Jun 21, 2003 4:19 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Roll Your Own Geiger Counter Tubes
Replies: 8
Views: 2834

Re: Roll Your Own Geiger Counter Tubes

<r>This link <URL url="http://www.sas.org/E-Bulletin/2003-05-23/features/body.html"><LINK_TEXT text="http://www.sas.org/E-Bulletin/2003-05-2 ... /body.html">http://www.sas.org/E-Bulletin/2003-05-23/features/body.html</LINK_TEXT></URL> contains a long discussion of gas detectors. The title is "An Int...
by AllenWallace
Mon Jun 16, 2003 12:42 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Really Simple Radiation Detector
Replies: 4
Views: 3116

Re: Really Simple Radiation Detector

I've tried the neon bulb detecter using a NE2 and also a "dark reduced"
bulb and have been disapointed. Yes, I can get some sensitivity to
gamma, but better sensitivity to light and even better sensitivity to
static electricity.
by AllenWallace
Mon Jun 02, 2003 4:50 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Next Round of Information for All-In -One Detector Boards
Replies: 5
Views: 1533

Re: Next Round of Information for All-In -One Detector Boards

<t>I am planning to adapt the board to work with a He3 or BF3 gas <br/> detector tube.<br/> <br/> I read in the documentation: "This board was designed for use with a <br/> photomultiplier-based scintillator detector. The charge sensitive <br/> amplifier and shaper circuit constants are optimized fo...
by AllenWallace
Thu May 29, 2003 2:41 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Old dead Ortec MCA
Replies: 0
Views: 1072

Old dead Ortec MCA

<t>I just purchased a 25 year old Ortec 6240 MCA for $20. However it <br/> appears to be disfunctional! I e-mailed Ortec, and they just laughed <br/> and advised me to junk it and "high voltages are dangerous".<br/> <br/> This is a long shot, but does anyone have a manual for this boat <br/> anchor?...
by AllenWallace
Sat May 24, 2003 3:59 am
Forum: Fusion --- Past, Present, and Future
Topic: Fusors wins big at international science fair!
Replies: 2
Views: 3374

Fusors wins big at international science fair!

<t>Fusors wins big at international science fair!<br/> <br/> I just came back from the INTEL International Science and Engineering Fair. My Fusor project won second place in the physics division, winning $1500 and also NASA awarded me a week at Space Camp.<br/> <br/> Also, Michael Li, with his proje...
by AllenWallace
Sat May 24, 2003 3:38 am
Forum: Fusor Construction & Operation (& FAQs)
Topic: High Vacuum
Replies: 0
Views: 1672

High Vacuum

<t>In reference to Implosion problems, Just remember that high vacuum is only about 14.7 psi relative to sea level., I find it funny when safety is replaced with a glass jar not rated for vacuum. <br/> In your system Colin you say you are using a stainless 2mm chamber.. that should suit you fine, th...