Fusor Forums

I use a wad cutter to cut foils
Be is used as it is the first stable (sort of) metal in the periodic table ie low Z so low energy gammas / x-rays can go throught it

I do not understand
I put up 15micron thickness solution over your 13 micron measurement
and you need 120mm when you said originally 13 microns

or is the detector nearly 5 inches in diameter --i doubt\\

please clarify!!!!

use new Be foil
http://www.goodfellow.com/catalogue/GFC ... V2hvddblfZ
BE000210 looks right.
Be careful it is not good for you
you need the Be foil to keep it light tight and to remove the low energy spectrum (noise)

Couldn't put the schematic up in the FAQ section so here it is

I'll put up my design It is a bit more than a preamp as it has post gain / shaping and a discriminator or lower window output to remove low energy pulses or noise for counting modes. The analize output is suitable for direct connection to a MCA It uses a cascode at the input to mitigate gate capacit...

as promised a few pics of a Ge target that got a little hot

I do not know about the original file but I use this one to test SPIMs and PMT's
Note it uses a very high voltage to get the necessary dI/dT through the blue LED

Dennis my sputtering system at work uses a 20kV 2mA argon beam to ablate a target held at 45 degrees to the beam this then sprays the ablated onto rotating catchers. Benefit of this system is the ions arrive with 10 -100eV of energy so chemically bond to the receiving surface. Your sputter coater is...

All covered by IAEA rules that most aligned countries have signed up to

NORM = naturally occurring radioactive material is exempt unless efforts are made to purify or separate it

so extracting yellowcake is "verboten"

Most of the thermocouple gauges use the octal valve (tube) plug on them so you will want the octal valve (tube) socket