Search found 130 matches

by ChrisSmolinski
Thu May 13, 2004 2:23 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: New Canberra model 40
Replies: 22
Views: 5981

Re: New Canberra model 40 -- Pics of the extender cards

<r>larry leins wrote:<br/> > Hi Mark:<br/> > <br/> > Those are very rare now.<br/> > Many pc cards and computer motherboards are being ground up for the <br/> gold.<br/> > It's a work of art.<br/> > I wonder If I can rent them for awhile LOL!<br/> <br/> And I'd like to rent them after Larry! <E>;-)<...
by ChrisSmolinski
Wed Apr 28, 2004 1:59 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Canberra 8075 schematics?
Replies: 9
Views: 2620

Canberra 8075 schematics?

<t>I'm curious if anyone here has copies of the schematics for the Canberra <br/> 8075? I am poking around with my recently acquired 8076, and it appears to <br/> be just an 8075 with an extra PCB kludged onto it, which replaces the various <br/> switchs and knobs on the 8075 front panel. I've start...
by ChrisSmolinski
Sat Apr 17, 2004 10:09 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Homebrew X-ray fluorescence (XRF)
Replies: 14
Views: 3691

Re: Homebrew X-ray fluorescence

<t>I've used the Amptek detectors in a previous life. It was quite amazing to be <br/> able to fluoresce a piece of stainless, and see all the K-alpha (and even <br/> some K-beta) lines stand out, right where they should be. Used it to <br/> characterize low energy (20 and 40 keV) x-ray sources. I a...
by ChrisSmolinski
Sun Apr 11, 2004 11:29 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Canberra 8076 NIM module
Replies: 6
Views: 2980

Re: Canberra 8076 NIM module

<t>Indeed, I've downloaded Craig's zip'd set of files from the yahoo egroup and <br/> am talking a look at them now. I'm hoping to get enough info on the 8076 to <br/> try to connect it up - any chance it is just a variant of the 8075 where the gain/<br/> offset/etc are controlled through the interf...
by ChrisSmolinski
Sat Apr 10, 2004 5:33 pm
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: A must read paper - Tritium decay constant reduction
Replies: 13
Views: 3682

Re: A must read paper - Tritium decay constant reduction

<r>Very interesting post, Richard. I know it's accepted that certain types of <br/> decay can be slightly modified by physical arrangements of atoms, such as <br/> with electron capture, where the availability of a nearby electron to grab <br/> depends on the molecular bonds. <br/> <br/> 40% is an a...
by ChrisSmolinski
Sat Apr 10, 2004 5:19 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Spectroscopy of other radiations
Replies: 9
Views: 3474

Re: Spectroscopy of other radiations

PIN photodiodes can be used in the direct charge measurement mode for
alpha energy measurement, as well as (less easily) for betas.
by ChrisSmolinski
Sat Apr 10, 2004 5:15 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Delayed Radiation From Lightning Storms
Replies: 1
Views: 1059

Delayed Radiation From Lightning Storms

<t>Science, Vol 304, Issue 5667, 43 , 2 April 2004<br/> <br/> AMERICAN PHYSICAL SOCIETY MEETING:<br/> Lightning Strikes and Gammas Follow?<br/> Kim Krieger<br/> <br/> MONTREAL, CANADA--More than 6000 physicists braved an early spring <br/> freeze here from 22 to 26 March for the American Physical So...
by ChrisSmolinski
Sat Apr 10, 2004 2:37 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Canberra 8076 NIM module
Replies: 6
Views: 2980

Re: Canberra 8076 NIM module

Larry,

I just bought one on eBay myself. Have you found anything out about this
unit?
by ChrisSmolinski
Wed Jan 07, 2004 2:34 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Fusor X-ray Spectra
Replies: 17
Views: 5595

Re: Fusor X-ray Spectra

<t>How well calibrated is the probe? Something looks amiss... the <br/> highest x-ray energy should be equal to the applied voltage, 38 and 43 <br/> kV respectively in your two runs. I see values in the graph of about 45 <br/> and 53 kV (eyeballing them). <br/> <br/> Lead has some L edges in the 15 ...
by ChrisSmolinski
Fri Dec 12, 2003 12:26 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Low backgrounds return to be the norm.
Replies: 8
Views: 2846

Re: Low backgrounds return to be the norm.

<r>Take a look at my online detectors: <URL url="http://www.blackcatsystems.com/GM/compare.html">http://www.blackcatsystems.com/GM/compare.html</URL><br/> <br/> (ignore the spikes, the computer sometimes gets sluggish when the internet connection is poor, resulting in slight counting errors, I need ...