Steven thank you
Will small quantities of lead-free solder (Sn-Ag-Cu) be a problem in assembling the inner shield?
Search found 10 matches
- 02 May 2017, 02:54
- Forum: Shielding
- Topic: 3d printed shield?
- Replies: 6
- Views: 8449
- 06 Mar 2017, 06:37
- Forum: Shielding
- Topic: 3d printed shield?
- Replies: 6
- Views: 8449
Re: 3d printed shield?
Thank you Steven, When you say You can do a simple experiment using a piece of lead in front of your detector on a 45˚ angle with a shielded source emitting gamma above 80 Kev out to the side, the source will induce 80 keV x-rays in the lead so you can try inserting copper plates between the detecto...
- 04 Mar 2017, 04:32
- Forum: Shielding
- Topic: Detection Limit
- Replies: 1
- Views: 4521
Detection Limit
Interesting page on the limits of detection from Woodshole. In the attached image, it looks like their whole shield is lined with copper. Am I wrong in having assumed that the copper shield is only needed around the detector? Or is this a different case because, as described in the woodshole article...
- 19 Oct 2016, 13:18
- Forum: Shielding
- Topic: 3d printed shield?
- Replies: 6
- Views: 8449
Re: 3d printed shield?
Thank you, Steven. Seems like I'm going about this backwards. If my goal is to be able to detect trace elements in food and water then I imagine I need to work out a way to dehydrate and concentrate samples, a method of determining optimal sample container surrounding the detector (which I imagine i...
- 18 Oct 2016, 13:57
- Forum: Shielding
- Topic: 3d printed shield?
- Replies: 6
- Views: 8449
3d printed shield?
Hi all...
Any thoughts on using a 3d printed shield to house copper coated lead shot? is it reasonable for the lower section to have a smaller shield thickness? and, what's a reasonable sample chamber thickness? is 25mm sufficient?
Thank you,
Stanford
Any thoughts on using a 3d printed shield to house copper coated lead shot? is it reasonable for the lower section to have a smaller shield thickness? and, what's a reasonable sample chamber thickness? is 25mm sufficient?
Thank you,
Stanford
- 24 Sep 2016, 06:06
- Forum: Shielding
- Topic: Nickel-coated lead
- Replies: 10
- Views: 11351
- 23 Sep 2016, 14:16
- Forum: Shielding
- Topic: Nickel-coated lead
- Replies: 10
- Views: 11351
Re: Nickel-coated lead
Super thank you... I just read that "commercially available lead often contains a significant fraction of antimony, as that helps its material properties (the antimony makes it harder, easier to cast in molds, etc.). But antimony is one of the last materials you'd want in a radiation shield, as...
- 23 Sep 2016, 02:57
- Forum: Shielding
- Topic: Nickel-coated lead
- Replies: 10
- Views: 11351
Re: Nickel-coated lead
How about copper coated lead shot for the same reason?
Steven Sesselmann wrote:Nickel should be okay, most of the x-Ray's are under 10 Kev.
http://nucleardata.nuclear.lu.se/toi/xr ... list&el=Ni
Steven
- 23 Sep 2016, 01:33
- Forum: Introductions >> Start Here !
- Topic: Hey y'all
- Replies: 3
- Views: 3469
Re: Hey y'all
Steven thank you This is exciting and much learning already. Is Cs-137 the only candidate? I thought that it doesn't bioaccumulate... not true? And no Strontium, Tritium, or Iodine? So, dehydration isn't necessary.... water molecules don't block anything? Dehydration for concentration makes it easie...
- 22 Sep 2016, 03:24
- Forum: Introductions >> Start Here !
- Topic: Hey y'all
- Replies: 3
- Views: 3469
Hey y'all
Hi yawl I'm a newbie just checking in to say hi. I have a GammaSpectacular detector set up and running but limited shielding so far. I see there's a lot of info about shielding online already (thank you all for that). How about dehydration? Do samples of food stuffs need to be dehydrated and if so t...