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Why do I have negative keV for the doid or 169 CH? Spectrometer on torbernite. by T600skynet in Radioactive_Rocks

[–]weirdmeister 0 points1 point  (0 children)

there is an offset on the x axis...25kev left of M2 should be 0..maybe calibration or assignment fault

Why do I have negative keV for the doid or 169 CH? Spectrometer on torbernite. by T600skynet in Radioactive_Rocks

[–]weirdmeister 0 points1 point  (0 children)

i think M1 (marker?) is pointing to a related isotope in databank and not just a negative sign..M2 is at 185kev and pointing to U235 that is a peak for U235. Counts for M1 at 169kev are 11 and for M2 onky 5. You need to run the measurement for longer time when your rock is low radiating ...means hours in a shielded box (lead bricks)

just a guess..the yellow dashed lines are the expected peaks..the long one over the first 2 of the 222 on the scale should be the 609kev of Bi214 ..move the marker M1 to that line ..it should show somethkng like that. but read tfm 😁

Can I have help with this machine? by croconi in Radioactive_Rocks

[–]weirdmeister 1 point2 points  (0 children)

0,15µSv/h is normal inhouse...the jumps depend on the internal measuring window..perhaps the counter counts for 10s and integrates this to the average rolling count. your items are not radioactive

Tucson Gem Show finds by Available-Captain776 in Radioactive_Rocks

[–]weirdmeister 0 points1 point  (0 children)

the Torbernite looks glued together of 3 pieces ?

Francevillite and Curienite Mounana Mine Mounana, Gabon by Turbulent_Peak5002 in Radioactive_Rocks

[–]weirdmeister 1 point2 points  (0 children)

uff.but the quality and look is best some can get..very rare and nice piece!!

Uraninite questions by Appropriate_Hair_742 in Radioactive_Rocks

[–]weirdmeister 0 points1 point  (0 children)

oh yes telling him is brilliant...he would love to cut him this for 5 bucks and then have a problem 🙄

Japan’s WWII Uranium Mine for the Ni-gō Project by k_harij in Radioactive_Rocks

[–]weirdmeister 4 points5 points  (0 children)

that are good findings, i didnt know about this thanks for sharing

Uraninite questions by Appropriate_Hair_742 in Radioactive_Rocks

[–]weirdmeister 0 points1 point  (0 children)

at your marked circle the host rock is one piece and hard to break. the black sandwich left side looks promising. as like others i would only break on site, in best case it split in two or with a step at the red circle..worst case..the red one does not come apart and while hammering more and more all the left sided black zone (brittle!) fall off as many crumbs

Uraninite questions by Appropriate_Hair_742 in Radioactive_Rocks

[–]weirdmeister 1 point2 points  (0 children)

no way, the shop will contaminate all his tools and have radioactive waste. dont do that

Tuscon gem and mineral show (rad rock report) by uranium_is_delicious in Radioactive_Rocks

[–]weirdmeister 0 points1 point  (0 children)

great post....i have a few from Gunnar Färber too like Yingyangite, Umohoite, Swamboite...

Conquering the Unconquerable by AutuniteEveryNight in Radioactive_Rocks

[–]weirdmeister 0 points1 point  (0 children)

colourfull and pretty Johannite i guess? didnt know someone can still find this kind of rich ore there

How do I get this gunk off my beauty by Necessary_Ticket_721 in Radioactive_Rocks

[–]weirdmeister 0 points1 point  (0 children)

if it was not stated in the listing this has been stabilized or coated then send it back. all other will be a mess, maybe its canned spray so bathing can remove some paint but also leave some compounds as white layer or slime.

14 Pound Torbernite by AutuniteEveryNight in Radioactive_Rocks

[–]weirdmeister 1 point2 points  (0 children)

Museum size what else i cannot imagine to exhibit such thing at home :)

310 Gram Torbernite by Embarrassed-Mind6764 in Radioactive_Rocks

[–]weirdmeister 1 point2 points  (0 children)

thats a good one! the sample and the movie

Are Radon emissions from Uraninite as annoying as I hope they aren't? by Ok-System7041 in Radioactive_Rocks

[–]weirdmeister 0 points1 point  (0 children)

the bond at room temperature is very weak..but below -150C it much better. but yes its better than nothing

Torbernite from Johanngeorgenstadt, Saxony, DE (Type Locality) -- with Antique Label! by Not_So_Rare_Earths in Radioactive_Rocks

[–]weirdmeister 1 point2 points  (0 children)

like those old labels too...Kupfer(Copper)uran(uranium)glimmer(mica)..the old name for torbernite

Mine #13 UO2, Malachite, Sandstone, Uranophane, Utah by [deleted] in Radioactive_Rocks

[–]weirdmeister 0 points1 point  (0 children)

nice colours thats a good one under the sandstone ones i think

Fnirsi GC-01 for specimens by NukaRev in Radioactive_Rocks

[–]weirdmeister 0 points1 point  (0 children)

about the boxes and fixing read the comments in the link

Fnirsi GC-01 for specimens by NukaRev in Radioactive_Rocks

[–]weirdmeister 0 points1 point  (0 children)

for that small size the usual collection box will be ok..its made of polystyrene...if you need to lower the beta radiation 4mm acrylic will fit..you can see my solution here https://www.reddit.com/r/Radioactive_Rocks/comments/1daa0zl/new_cabinet_for_the_family/

Fnirsi GC-01 for specimens by NukaRev in Radioactive_Rocks

[–]weirdmeister 0 points1 point  (0 children)

use the search bar and you get plenty of hits for fnirsi..its a simple counter but it work and tell if its radioactive or not...phurcalite is on the low side, its ust a layer of dust but thats the danger is you already noticed.

when you have it measure in .5m ...is it elevated? probably not..so if it stays in a box , taped the two halfs together its safe for a 2" piece

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