Search found 237 matches

by richnormand
Sat Oct 29, 2016 3:18 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: CANBERRA SERIES 10 - HV PROVBLEM - SCHEMATICS WANTED
Replies: 3
Views: 1886

Re: CANBERRA SERIES 10 - HV PROVBLEM - SCHEMATICS WANTED

PM sent Marco.
Let me know if you get the info OK.

By the way I did get your last message via the fusor forum today.
by richnormand
Sat Oct 22, 2016 10:27 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: CANBERRA SERIES 10 - HV PROVBLEM - SCHEMATICS WANTED
Replies: 3
Views: 1886

Re: CANBERRA SERIES 10 - HV PROVBLEM - SCHEMATICS WANTED

Send me a private message with an appropriate email that accepts attachments . I have a scan of the user and service manual (about 5 to 6 meg). Also, if I remember correctly the bottom card has to be in the proper position for the software selected range if you have the dual polarity and selectable ...
by richnormand
Sat Jul 30, 2016 11:28 pm
Forum: Vacuum Technology (& FAQs)
Topic: Leybold D16A
Replies: 9
Views: 3095

Re: Leybold D16A

I got a D16AC. It was totally broken with on of the vane pin sheared off and the remnants scored the cylinder. Dunaway had a full repair kit for it. Manuals are also available on the net. After a bit of machining and the rebuilt it has been a solid performer for about 10 years now. FYI parts are ava...
by richnormand
Wed Mar 23, 2016 2:47 am
Forum: FAQs: Neutron - Radiation Detection
Topic: FAQ - Choosing a Gamma Spec Scintillator detector
Replies: 8
Views: 10381

Re: FAQ - Choosing a Gamma Spec Scintillator detector

Nice work. People getting into the game might benefit from reading: R.L. Heath “Scintillation Spectroscopy Gamma Ray Spectrum Catalog” at http://www.inl.gov/gammaray/catalogs/pdf/naicat.pdf The intro is quite useful and explains a lot of the physics and geometry efects. I also found “Radiation Deca...
by richnormand
Wed Feb 17, 2016 12:51 am
Forum: Vacuum Technology (& FAQs)
Topic: Best gas for plasma cleaning?
Replies: 7
Views: 3093

Re: Best gas for plasma cleaning?

With a large ion deposition system I used an argon discharge for several hours followed by an unfocussed deposition of titanium in such a way as it would cover most of the chamber.
The Ti would cover the walls and act as a getter for a while.
by richnormand
Wed Jul 22, 2015 9:39 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Board Mounted LiI(Eu) scintillators - repost in neutron detection
Replies: 26
Views: 20165

Re: Board Mounted LiI(Eu) scintillators - repost in neutron

P2245090 (Medium) (Small).JPG @ rich "How far did you get with yours, Rich Normand?" I got two units a while back . One with all pins, one with damaged pins. Same result with both. I used a 50/50 tin indium solder to keep temps low as initially suggested by Richard. It worked very well but contacti...
by richnormand
Tue Jun 09, 2015 1:53 am
Forum: Vacuum Technology (& FAQs)
Topic: Refresh Copper Gasket
Replies: 2
Views: 1519

Re: Refresh Copper Gasket

Depending on the status of your vacuum system: i.e. not 10^-11 and such.... I had good success by putting a smear of Apiezon M vacuum grease with gloves on old copper O-rings to fill the groove. Lasted several years and reached < 10^-9 without issues on an ion pump. Like everything, your mileage (km...
by richnormand
Tue Apr 07, 2015 9:39 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Canberra series 10 or 20 schematics
Replies: 12
Views: 8082

Re: Canberra series 10 or 20 schematics

I'll look at what I have available for your models. EDIT: Just went to the basement. Sorry to disappoint but all I have series 10, 30 and 35 CDs with various schematics scans and pdf files. No series 20 unfortunately. Series 10 is not complete either. I'll look closer for power supply docs. Post a p...
by richnormand
Mon Mar 23, 2015 10:17 pm
Forum: Images du Jour
Topic: Fan motor re-oiling?
Replies: 5
Views: 3114

Re: Fan motor re-oiling?

I had good success over the past few decades (ie: most motors still working) with this. First : total clean with brake cleaner (carb cleaner too). remove all gunk and let soak overnight to attack the outer layer of the sintered bearing. Two: remove marks on shaft with fine emery paper. Then, using a...
by richnormand
Sun Jan 04, 2015 10:26 pm
Forum: Vacuum Technology (& FAQs)
Topic: Hot Ion gauge filament repair
Replies: 19
Views: 8168

Re: Hot Ion gauge filament repair

Nice work Peter, Was the W 0.15mm diag representative of the original diameter of the filament or just what you had at the time? Or did you buy that diameter specifically because it is appropriate for this? Was the gauge pressure indication OK afterwards? One would think so if the controller automat...