开云体育

ctrl + shift + ? for shortcuts
© 2025 开云体育

beginner question


 

hi:
?I was curious as to what are typical xray requirements:
?
Roughly
? ? ? ? ? ?what kV
? ? ? ? ? ? ?x.xx mA
? ? ? ? ? y.yy seconds of xray exposure
?
is needed for a typical xrf measurement ?

?
p
?


 

I use 50kV, 1.6uA, and perhaps 30 seconds of exposure.? However, it very much depends on your setup and what elements you are looking for.

Charles


On Tue, Aug 27, 2024 at 1:35?PM peter via <epkoncept=[email protected]> wrote:
hi:
?I was curious as to what are typical xray requirements:
?
Roughly
? ? ? ? ? ?what kV
? ? ? ? ? ? ?x.xx mA
? ? ? ? ? y.yy seconds of xray exposure
?
is needed for a typical xrf measurement ?

?
p
?


 

charles:?
thank you for the quick reply.
?
I stumbled across a portable dental xray unit ad on feebay for
$690

TECHNICAL SPECIFICATIONS

1.???Tube voltage:60KV

2.???Tube current:2mA

3.???Exposure time:0.1-2.0S

4.???贵谤别辩耻别苍肠测:30办贬锄

5.???Rate power:120VA

6.???Distance from skin to cone:105mm

7.???Tube focus:0.8mmx0.8mm

8.???Battery:DC14.8V 1600mAh

?

I guess the exposure range is too short.

Oh well. Just curious. I need to make more space in my room!

P