Search found 304 matches

by Roberto Ferrari
Mon Sep 17, 2018 1:42 pm
Forum: Files
Topic: Paper on neutron counting using ZnS(Ag) phosphors
Replies: 8
Views: 22661

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

Hi John Glad to know about your experiment. I will give a try as soon as I get some ZnS:Ag film. My neutron source will be an old vial with Ra paint (from old watch shop) and a small Be window from a damaged X-ray tube, just placing the Be in front of the open vial. The efficiency will be low but I ...
by Roberto Ferrari
Sat Sep 15, 2018 8:29 pm
Forum: Files
Topic: Paper on neutron counting using ZnS(Ag) phosphors
Replies: 8
Views: 22661

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

Jon,
It is an interesting paper but nothing is said about neutron fluxes.
The only neutron parameter reported is energy.
Do you think ZnS:Ag may be sensitive enough for the typical fusor production?
Roberto
by Roberto Ferrari
Wed Aug 29, 2018 6:58 pm
Forum: Books & References
Topic: Underappreciated X-rays
Replies: 2
Views: 14740

Underappreciated X-rays

Fellows
Found this article about undesired x-ray production in a lab during high voltage and vacuum experiments.
Is an interesting exercise about characterizing, measuring and controlling stray radiation.
by Roberto Ferrari
Mon Jul 30, 2018 5:07 pm
Forum: Announcements and Site Administration Topics
Topic: Going Out On A Limb
Replies: 14
Views: 9179

Re: Going Out On A Limb

Hi Dan
Do you remember the tale “The Emperor’new clothes”?
I was trying to understand what is doing Doug, and ashamed to not understand…
Glad not to be alone.
Roberto
by Roberto Ferrari
Wed Jul 18, 2018 8:38 pm
Forum: Images du Jour
Topic: Tubbs Beam-on-Target Effort [Neuts/Pics/Tips]
Replies: 47
Views: 26290

Re: Tubbs Beam-on-Target Effort [Neuts/Pics/Tips]

Hi Robert,
Please, comment about the RF power on your Ion Source Inductively Coupled as well as the Proton/Deuteron current.
Could you provide some diagram of your source? I am curious about the three extractors electrodes.
Thanks!
Roberto
by Roberto Ferrari
Fri Jun 22, 2018 7:44 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Nuclear Enterprises plastic scintillators
Replies: 2
Views: 2831

Re: Nuclear Enterprises plastic scintillators

Hi Bruce

Ah! valuable info. I will get in touch.
Thanks,
Roberto
by Roberto Ferrari
Thu Jun 21, 2018 10:23 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Ballast resistor construction
Replies: 11
Views: 7443

Re: Ballast resistor construction

Hi Dan

Excellent design!
How far will you push it in terms of kV?
Roberto
by Roberto Ferrari
Mon Jun 18, 2018 2:06 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Nuclear Enterprises plastic scintillators
Replies: 2
Views: 2831

Nuclear Enterprises plastic scintillators

Hi I have been able to get three plastic scintillators for neutron detection, the models NE-400, NE-402 and NE-404. Being obsolete there is no much useful info on the web. Just learned that the 402 has 92% B10 and that the 404 is sensitive to fast neutrons. I would appreciate if some fellow has full...
by Roberto Ferrari
Fri Jun 15, 2018 1:16 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: What about "Liquid Scintillation vs. Pancake GM"?
Replies: 5
Views: 3529

Re: What about "Liquid Scintillation vs. Pancake GM"?

Thanks Rex and Richard,

Yes, may be a cumbersome approach.
Roberto
by Roberto Ferrari
Thu Jun 14, 2018 12:30 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: What about "Liquid Scintillation vs. Pancake GM"?
Replies: 5
Views: 3529

Re: What about "Liquid Scintillation vs. Pancake GM"?

Hi Richard
I was recalling George Schmermund' experiments posted some years ago.
Nobody followed that line?
I understand it's not the easiest way but was curious.
Roberto