Search found 297 matches

by Roberto Ferrari
Mon Jun 18, 2018 2:06 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Nuclear Enterprises plastic scintillators
Replies: 2
Views: 2315

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: 2730

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: 2730

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
by Roberto Ferrari
Wed Jun 13, 2018 3:01 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: What about "Liquid Scintillation vs. Pancake GM"?
Replies: 5
Views: 2730

What about "Liquid Scintillation vs. Pancake GM"?

Hi
What happened with this promising thread?
Nobody continued that approach?
Roberto
by Roberto Ferrari
Tue May 01, 2018 9:55 pm
Forum: Images du Jour
Topic: MATER-1
Replies: 10
Views: 5048

Re: MATER-1

Jim

Very clear explanation.
Thanks,
Roberto
by Roberto Ferrari
Tue May 01, 2018 2:41 pm
Forum: Images du Jour
Topic: MATER-1
Replies: 10
Views: 5048

Re: MATER-1

Hi Jim
Please comment about removing the alumina tube from the stem of the grid.
Does it degrade the performance?
I was looking for an alumina tube in order to install it on my HV feedthrough...
Thanks in advance,
Roberto
by Roberto Ferrari
Thu Jan 25, 2018 11:49 am
Forum: Images du Jour
Topic: News from Argentina
Replies: 13
Views: 4572

Re: News from Argentina

Finn and Dennis,
Thanks for your advice.
We are getting a loaned capacitance manometer 1 torr FS.
As soon as installed, we will report results.
by Roberto Ferrari
Tue Jan 23, 2018 8:22 pm
Forum: Images du Jour
Topic: News from Argentina
Replies: 13
Views: 4572

Re: News from Argentina

Hi Finn Thanks for bringing that issue. You are right. We already had those Baratrons for other purposes. Now on eBay seems to be a restriction for exporting those devices, so we feel unsafe buying one and sending to our country. With regard to high vacuum readings we already have a Bayard-Alpert ga...
by Roberto Ferrari
Tue Jan 23, 2018 12:25 pm
Forum: Images du Jour
Topic: News from Argentina
Replies: 13
Views: 4572

Re: News from Argentina

Hi Dennis,
Following Mr. Rosenstiel’s suggestion, our water resistor will be a plastic tube with water and a little of copper sulphate.
Yes, the maximum rated voltage for our HV feedthrough is 30 kV.
by Roberto Ferrari
Tue Jan 23, 2018 12:44 am
Forum: Images du Jour
Topic: News from Argentina
Replies: 13
Views: 4572

Re: News from Argentina

Jerry: Thanks, good to know that. Dennis: We have an almost complete X-ray equipment. Xformer is under oil, silicon diodes also. We plan to run on the negative half only, with a variac for 220 V (our mains voltage) 20A. As ballast resistor we plan to use a water one, avoiding to open the xformer con...