Search found 33 matches

by isoenzyme
29 Oct 2019, 05:59
Forum: Spectrum
Topic: Apatite
Replies: 9
Views: 449

Re: Apatite

Hi Stefan - As for the paper, the first few paragraphs will answer most of your questions (the EXAFS analysis is not so interesting to me for reasons I mentioned earlier). As for the older post, what is so interesting to me is how different your spectrum was from that collected by Matthew Pickard (P...
by isoenzyme
29 Oct 2019, 03:27
Forum: Spectrum
Topic: Apatite
Replies: 9
Views: 449

Re: Apatite

You might also want to check out the spectrum collected by "Photon" on 16 September from an Apatite specimen that contained a fair amount of Thorium: viewtopic.php?f=5&t=635

Who knows, healing and improved mental function might by yours!
by isoenzyme
29 Oct 2019, 03:16
Forum: Spectrum
Topic: Apatite
Replies: 9
Views: 449

Re: Apatite

Stefan: That is a beautiful sample of apatite and a fantastic spectrum. I was a bit supersized that there wasn't more Uranium in the sample (just from a quick initial scan of the data), but that can happen depending on the source of the mineral. Apatite is well known for incorporating Lanthanides an...
by isoenzyme
06 Oct 2019, 05:57
Forum: Spectrum
Topic: Tyuyamunite from Utah with Improved Graded Shield
Replies: 6
Views: 218

Re: Tyuyamunite from Utah with Improved Graded Shield

Massimo:
Being from Utah, and having several pieces of tyuyaminite in my collection, I'm impressed you can say and write it without Google. I still can't... I love your posts - excellent spectra and a wonderful presentation each time! Keep up the great work!
by isoenzyme
24 Jun 2019, 09:20
Forum: Spectrum
Topic: Exposure and Dose Assessment, an Homemade Attempt
Replies: 5
Views: 580

Re: Exposure and Dose Assessment, an Homemade Attempt

Massimo:
Excellent work. I really like the work you did with the SE International Radiation Alert Ranger and how close it came out to your measurement!
by isoenzyme
21 Jun 2019, 02:40
Forum: Shielding
Topic: GS-STANDUP
Replies: 8
Views: 3173

Re: GS-STANDUP

Steven, Thanks for letting me know. (The post was made during a time I was on a cruise in the Arctic Ocean with no internet access; being the first vacation I've taken since 2003 I didn't see it.) I hope you have a great time with your new toy and get some fantastic parts for your efforts. PLEASE be...
by isoenzyme
20 Jun 2019, 16:18
Forum: Shielding
Topic: GS-STANDUP
Replies: 8
Views: 3173

Re: GS-STANDUP

Here is what the slightly modified plug looks like when printed (sorry for the poor photography). PrintedPartsPhotos.png Printing parts isn't like machining parts from metals or bulk plastics. After printing it is advisable to heat each piece to "anneal" it resulting in a stronger part; however, dep...
by isoenzyme
30 May 2019, 01:15
Forum: Shielding
Topic: GS-STANDUP
Replies: 8
Views: 3173

Re: GS-STANDUP

Steve: I have access to a part printer (and have already begun printing fun parts for my STANDUP-20 for gamma spectroscopy). Please message me privately and I can see if it's something I can make. (I can't get the private message thing to work for me for some reason today.)
by isoenzyme
30 May 2019, 01:08
Forum: Shielding
Topic: GS-STANDUP
Replies: 8
Views: 3173

Re: GS-STANDUP

WOW. That shielding is beautiful and exactly what is needed to reduce x-ray signals from the lead in the STANDUP without reducing it from the sample. My solution wasn't as pretty as that though how I cut the shapes was less calculation and more trickery as well. Half Shielding Liners.jpg Before Join...
by isoenzyme
24 May 2019, 02:04
Forum: Introductions >> Start Here !
Topic: Greetings from Oregon
Replies: 4
Views: 803

Re: Greetings from Oregon

Hey Addison, Best of luck with your build! Please post details of your efforts on the forum as it's the kind of stuff that we love to see! I posted previously, " (I've been watching the https://www.ebay.com/itm/3-Scintillatio ... 3cf90e592d kit as a lower cost option to trying a plastic scintillatin...