Search found 29 matches

by isoenzyme
24 Jun 2019, 09:20
Forum: Spectrum
Topic: Exposure and Dose Assessment, an Homemade Attempt
Replies: 5
Views: 376

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: 2740

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: 2740

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: 2740

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: 2740

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
Topic: Greetings from Oregon
Replies: 4
Views: 440

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...
by isoenzyme
19 May 2019, 03:42
Forum: Spectrum
Topic: Radium Clock
Replies: 4
Views: 377

Re: Radium Clock

Beautiful spectra! Thanks for providing the spectra in both counts and energy per bin.
by isoenzyme
17 May 2019, 03:18
Forum: Introductions
Topic: Greetings from Oregon
Replies: 4
Views: 440

Re: Greetings from Oregon

Welcome Addison! If your experience is like mine you'll find a helpful and knowledgeable online community here. Though I'm not the most expert at gamma spectroscopy (yet) I would suggest that you look at amazon.com for the detector you linked to in your post. (It is available for less money and for ...
by isoenzyme
15 May 2019, 16:47
Forum: General discussion
Topic: Radiodating using NaI(Tl)
Replies: 11
Views: 1008

Re: Radiodating using NaI(Tl)

As for using gamma spectroscopy to date rocks, I did win the natural zircon crystals on eBay and ran them for a moderate time using a CsI(Tl) scintillating detector in a shielded GS-STANDUP to determine whether it was worth trying. Photographs of the huge zircon (ZnSiO4) crystals (> 6 carats) and th...
by isoenzyme
14 May 2019, 06:43
Forum: Spectrum
Topic: Uranophane
Replies: 2
Views: 284

Re: Uranophane

That is a "beautiful" spectrum (if one can describe spectra that way)!

Excellent photography as well...