Search found 1280 matches

by John Futter
Fri Jun 22, 2018 6:33 am
Forum: Fusor Construction & Operation (& FAQs)
Topic: Ballast resistor construction
Replies: 9
Views: 195

Re: Ballast resistor construction

Dan Do not put those resistors in the tube the ozone (read live ions) will build up and kazap see this post I did a few years ago very similar resistors and corona rings at top and middle reduced corona current to acceptable about 3 quarters of the way down the post http://www.coultersmithing.com/fo...
by John Futter
Tue Jun 12, 2018 7:16 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Dysprosium activation runs planned
Replies: 6
Views: 448

Re: Dysprosium activation runs planned

My only introduction to dysprosium was at work to make some ion source targets for a Dy beam
the rod i had was as hard as. Hard on lathe tooling harder on cobalt drill bits but i did get what i wanted
cutting a bit off in vice to put in the lathe saw a new hacksaw blade dulled to oblivian
by John Futter
Thu Jun 07, 2018 7:04 pm
Forum: The Trading Post
Topic: MKS 901p vacuum gauges
Replies: 7
Views: 863

Re: MKS 901p vacuum gauges

Teraterm is good as is putty
by John Futter
Tue Jun 05, 2018 8:30 am
Forum: Images du Jour
Topic: Gold Plasma
Replies: 7
Views: 644

Re: Gold Plasma

Richard Yes it will that unit is made for coating SEM samples that are not conductive so that there is no charge build up and the gold ions arrive with almost no energy so that especially biological tissue does not get damaged This of course means that there was not enough eV to do a chemical bond s...
by John Futter
Tue Jun 05, 2018 8:16 am
Forum: Please Introduce Yourself
Topic: Magtube
Replies: 1
Views: 280

Re: Magtube

Eddy
good to see you saw the rules as per user name etc
welcome
Read all the FAQ's found at the top of each sub forum. Here you will find nearly all the answers to your questions that you have not thought of yet
enjoy
by John Futter
Tue Jun 05, 2018 8:12 am
Forum: Please Introduce Yourself
Topic: Hi
Replies: 3
Views: 328

Re: Hi

Rajko Well done I know a bit of a bore but it has seriously reduced trolls/ spammers from hijacking this site so a little pain of using your real name makes for a much better site Welcome Read all the FAQ's found at the top of each sub forum here you will find nearly all the answers to your question...
by John Futter
Sun Jun 03, 2018 11:42 pm
Forum: Images du Jour
Topic: A bit of Gamma Spec - Lutetium
Replies: 2
Views: 362

Re: A bit of Gamma Spec - Lutetium

Richard
LYSO scintillators of course have luticium in them makes a conienient check source built in
by John Futter
Sun Jun 03, 2018 11:38 pm
Forum: Please Introduce Yourself
Topic: Hi
Replies: 3
Views: 328

Re: Hi

Rajko
Please read the rules and amend your username to your full real name as per this sites rules
Thank you
by John Futter
Fri May 25, 2018 7:54 am
Forum: Images du Jour
Topic: Vacuum breakers
Replies: 4
Views: 659

Re: Vacuum breakers

aaaaah fixing a problem that could exist on a 1,000,000,000,000, : 1chance of somebody actually usinng a hose when a negative pressure event caused by alien invasion is taking place. I'm glad your city has senior idiots empowered to think of of all these implausible happenings - this of course after...
by John Futter
Tue May 22, 2018 6:58 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Hitachi hv supply
Replies: 2
Views: 569

Re: Hitachi hv supply

Caliban or who ever
if you followed the forum rules you might get more response
first post should be the introduce yourself forum
you must use your full real name in both fields no handles ie Caliban to be used