Search found 117 matches

by pfostini
Thu Dec 30, 2010 10:07 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: How to switch polarity of a Laser PS Kit
Replies: 4
Views: 1875

Re: How to switch polarity of a Laser PS Kit

What is the name on the power supply. Its a spectra Physics Model ?
by pfostini
Wed Feb 09, 2005 9:22 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Chirper-Audio output for Nim Bin setup
Replies: 8
Views: 3002

Chirper-Audio output for Nim Bin setup

Richard mentioned an audio chirper for his Nim setup. I feel it would be a great option to have. Anyone out there have schematics on one or an idea on building them from scratch?
by pfostini
Tue Feb 08, 2005 2:18 am
Forum: Images du Jour
Topic: Archived - Neutron Detector Upgrade
Replies: 7
Views: 5410

Re: Neutron Detector Upgrade

Thanks for the tip
by pfostini
Mon Feb 07, 2005 3:06 am
Forum: Images du Jour
Topic: Archived - Neutron Detector Upgrade
Replies: 7
Views: 5410

Re: Neutron Detector Upgrade

Hi Frank, I am in the process of doing the same except with a He3 Tube. I hope it comes out as well as yours.
by pfostini
Sat Jan 15, 2005 4:55 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: He3 Tube Bias
Replies: 3
Views: 1831

He3 Tube Bias

I am set up with my Nim Bin , bias supply , pre-amp, and he3 tube. BUT What polarity is the tube bias?????

I rcvd an email from oetech. He just got in some new Reuter Stokes Model He3 tubes RS-P4-0820-103, at 4 atm.
by pfostini
Sat Jan 08, 2005 7:09 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: What is the best preamp for a He3 tube
Replies: 9
Views: 2595

Re: What is the best preamp for a He3 tube

Thanks all , I think I got it.
by pfostini
Tue Jan 04, 2005 1:34 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: What is the best preamp for a He3 tube
Replies: 9
Views: 2595

Re: What is the best preamp for a He3 tube

The tube was purchased from Don Orie. I was told they can run up to 5KV.. It is the same size as Richard Hulls. I looked at the schematics but did not see any that has the HV bias input for the tube. Is this easily added in?
by pfostini
Tue Jan 04, 2005 4:10 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: What is the best preamp for a He3 tube
Replies: 9
Views: 2595

Re: What is the best preamp for a He3 tube

Building is good. Any schematics for such an animal?
by pfostini
Tue Jan 04, 2005 2:12 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: What is the best preamp for a He3 tube
Replies: 9
Views: 2595

What is the best preamp for a He3 tube

<t>Now that I have a good He3 tube I am now looking to purchase/make a preamp for it. In Richards post he mentions a Princeton Gamma and an ortec 122S. These preamps differ from what I have ( all scintillator types ), what moels will work for He3 detectors. The Ametek site has model 142's and when l...
by pfostini
Sat Jan 01, 2005 1:04 am
Forum: Fusor Construction & Operation (& FAQs)
Topic: Re: Clarification
Replies: 8
Views: 2360

Re: Clarification

Someone mention filling laser tubes? I might know what pumps are really required for that, if you want one that works well.