Search found 172 matches: +x-rays +safety

Searched query: +rays +safety

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by John Futter
Wed Aug 23, 2017 9:44 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Addressing HV safety excursions: Oh Yikes what do I do?
Replies: 11
Views: 1636

Re: Addressing HV safety excursions: Oh Yikes what do I do?

Or with penning / pirani gauges make sure you have a right angle bend between chamber and gaugehead
so the gauge does not see the plasma
ions are like rays of light they do not go round corners
by ian_krase
Wed Aug 02, 2017 8:30 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Dead Spellman PTV50N200 - where to start?
Replies: 7
Views: 847

Dead Spellman PTV50N200 - where to start?

... an adequate feedthrough and because to ensure safety (and to fit it on my bench) I needed some ... OBIT would not do anything at, and got some X-rays I could detect w/ my geiger counter... And then I had ...
by Dennis P Brown
Thu Jun 29, 2017 10:03 am
Forum: Please Introduce Yourself
Topic: Greetings!
Replies: 16
Views: 1899

Re: Greetings!

... to heart; do not blindly add power to such a x-former. Getting help, as John has suggested is ... thickness of slate for a 80 keV X-ray (safety factor!) is trivial (called google.) Slate ... away (and frankly, you haven't looked into x-rays if you think that distance is required.) Again, ...
by Dennis P Brown
Fri Jun 23, 2017 5:49 pm
Forum: Please Introduce Yourself
Topic: Greetings!
Replies: 16
Views: 1899

Re: Greetings!

... Also, do not leave any area that could expose someone to a dangerous level of x-rays without proper shielding. While current does matter ... to really understand high voltage systems and related safety - issues such as proper (fail safe) chamber grounding, ...
by Dennis P Brown
Mon May 22, 2017 11:08 am
Forum: Ion Gun Design and Construction (& FAQs)
Topic: Deuterium Accelerator
Replies: 0
Views: 847

Deuterium Accelerator

... accelerator...besides the issues of high flux x-rays with the accelerator which could be an issue when combined ... haven't tested/measured any flux yet creates too many safety unknowns (I do have an anti-electron back flow system ...
by Dennis P Brown
Mon May 22, 2017 10:39 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Neutron Scintillation Detector: start up work
Replies: 12
Views: 2054

Re: Neutron Scintillation Detector: start up work

... scintillation detector system is only for x-rays/gamma but does work well - even picks up Beta (rather ... But that system is solely used as a radiation safety detector system.)
by Dennis P Brown
Mon Mar 20, 2017 9:20 am
Forum: Images du Jour
Topic: John Beutz Fusor... The Story so Far
Replies: 24
Views: 3767

Re: John Beutz Fusor... The Story so Far

I have stressed electrical safety but one needs to be aware that over 35 kV fusor operation x-rays start to be significant; this radiation is an extremely dangerous ...
by Richard Hull
Mon Mar 06, 2017 4:06 pm
Forum: FAQs: Fusion and Fusor Theory
Topic: FAQ - Voltage-Cross section-Current
Replies: 5
Views: 2257

FAQ - Voltage-Cross section-Current

... absolute limit for amateur fusion in a fusor. X-rays produced at this 70kv level are fearsome and dangerous! ... electrical or electronics skills. High voltage safety becomes of paramount importance to avoid being killed ...
by Dennis P Brown
Fri Jul 29, 2016 9:51 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Water as Neutron Shield
Replies: 17
Views: 4890

Re: Water as Neutron Shield

... I see with a fusor or a sim-fusor. Also, exactly what safety regulations are there for the average home fusor? ... - I never said slate is useful for stopping gamma rays, only x-rays and by default, I mean in the energy range ...
by Richard Hull
Fri Jul 15, 2016 5:22 pm
Forum: FAQs: Fusor Construction & Operation
Topic: FAQ - Location for my super fusor?? Where?
Replies: 0
Views: 1713

FAQ - Location for my super fusor?? Where?

... operated at voltages above 25,000 volts are X rays and these will not be severe until voltages above 40,000 ... is always accidental electrocution via ignorance of safety issues involved. Only after voltages in excess of ...