Search found 1345 matches

by Jon Rosenstiel
Tue Sep 18, 2018 5:05 pm
Forum: Files
Topic: Paper on neutron counting using ZnS(Ag) phosphors
Replies: 8
Views: 368

Re: Paper on neutron counting using ZnS(Ag) phosphors

Roberto, ZnS(Ag) neutron detectors are notoriously poor performers (as I recall,efficiency is around 1%) so for the budding fusioneer this avenue is pretty-much a non-starter. But for someone that already has a neutron producing fusor and is looking for something to do with those neutrons this may m...
by Jon Rosenstiel
Fri Sep 14, 2018 9:01 pm
Forum: Files
Topic: Paper on neutron counting using ZnS(Ag) phosphors
Replies: 8
Views: 368

Paper on neutron counting using ZnS(Ag) phosphors

Phosphor mixtures for neutron scintillation counting.
ZnS(Ag) for neutron detection.pdf
(660.25 KiB) Downloaded 27 times

Jon Rosenstiel
by Jon Rosenstiel
Thu Apr 19, 2018 4:59 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: My Gamma Spectroscopy Setup
Replies: 5
Views: 1260

Re: My Gamma Spectroscopy Setup

Richard, Appreciate the kind words. My reasoning behind all of this is that if something goes haywire with my back (I ain't no spring chicken) I will still have some hobbies that I can play with despite not being able to easily get around. (Anyway, that's the plan) Rich, Yeah, it's pretty-much one o...
by Jon Rosenstiel
Fri Apr 13, 2018 11:22 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: My Gamma Spectroscopy Setup
Replies: 5
Views: 1260

My Gamma Spectroscopy Setup

It may have been 60 some years ago but I remember it like it was yesterday. I was sitting at my workbench in the basement of my parents’ home on our family farm listening to faint clicks in my headphones. The Geiger counter I had just finished building actually worked! The faint clicks were the resu...
by Jon Rosenstiel
Fri Mar 02, 2018 11:23 pm
Forum: New User Chat Area
Topic: IAEA SPEDAC PRO VER 5.0 WANTED
Replies: 1
Views: 482

Re: IAEA SPEDAC PRO VER 5.0 WANTED

Give FitzPeaks gamma spectrometry software a try. Free download at http://www.jimfitz.co.uk/fitzpeak.htm It will open and save gamma spec files in several different formats... may do what you want. Note that it requires 32 bit Windows.

Jon Rosenstiel
by Jon Rosenstiel
Mon Feb 12, 2018 8:58 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: High Voltage Ballast Resistor and Inner Grid Help
Replies: 4
Views: 1114

Re: High Voltage Ballast Resistor and Inner Grid Help

As to fusor grid wire, I suspect Dennis meant tungsten, not titanium.

Jon Rosenstiel
by Jon Rosenstiel
Thu Nov 23, 2017 7:44 pm
Forum: Images du Jour
Topic: Daniel Klasing Neutron Club Application
Replies: 13
Views: 1668

Re: Daniel Klasing Neutron Club Application

Daniel,
Below is what I normally see when using a bubble detector. Compared to the images of your BTI's note that the bubbles are smaller in size and are fairly evenly distributed throughout the detector's volume.
BTI.jpg
Jon Rosenstiel
by Jon Rosenstiel
Tue Nov 14, 2017 11:42 pm
Forum: New User Chat Area
Topic: CANBERRA SERIES 35 MCA STARTUP PROBLEM 2017
Replies: 5
Views: 1004

Re: CANBERRA SERIES 35 MCA STARTUP PROBLEM 2017

Dropbox link to Canberra Series 35 Plus schematics.

https://www.dropbox.com/sh/fw75vox8xnoy ... _Ds-a?dl=0

Jon Rosenstiel
by Jon Rosenstiel
Mon Nov 06, 2017 2:06 am
Forum: Images du Jour
Topic: HEAS 2017 - post all images here!
Replies: 34
Views: 4112

Re: HEAS 2017 - post all images here!

As a 15-year old in the mid 1950's I remember my dad asking me: "Do you know what LSMFT means"? My answer was: "Lucky Strike Means Fine Tobacco"? Dad answered: "No, it means Lord, Save Me From Truman".

Jon Rosenstiel
by Jon Rosenstiel
Fri Aug 25, 2017 7:20 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: High purity Germanium detector design related clarifications
Replies: 17
Views: 2601

Re: High purity Germanium detector design related clarificat

I believe the purpose of the holes are to reduce leakage current. Below is a pic of an Ortec item. Ortec also uses a triangular support bracket similar to the plastic one in Ashish's detector, but it appears to be made from G10 or maybe G11 fiberglass laminate material, but without the holes. 2017-0...