Search found 81 matches

by pilgrim
15 Jul 2018, 02:25
Forum: Spectrum
Topic: Trinitite spectrum
Replies: 7
Views: 2151

Re: Trinitite spectrum

Hi guys, could you suggest me a reliable seller for a trinitite sample?
by pilgrim
13 Jul 2018, 05:32
Forum: Spectrum
Topic: Trinitite spectrum
Replies: 7
Views: 2151

Re: Trinitite spectrum

I see a very good linearity!
Beautiful spectrum! I think your setup works very well, especially considering the low activity of trinitite.
by pilgrim
10 Jul 2018, 13:18
Forum: The lounge
Topic: Goodbye Alaska
Replies: 4
Views: 3176

Re: Goodbye Alaska

Good luck Geoff!
by pilgrim
09 Jul 2018, 15:00
Forum: Shielding
Topic: Old lead
Replies: 23
Views: 8440

Re: Old lead

I didn't do It all by my self, the turner helped me, giving me hints and tips ;-)
by pilgrim
09 Jul 2018, 00:05
Forum: Shielding
Topic: Old lead
Replies: 23
Views: 8440

Re: Old lead

Good question! The clamping on the spindle's clamps must not be too much strong or there will be mechanical deformations. Then low rpm and lot of coolant. I've only machined the surfaces of contact, not the external and the internal diameter, that resulted awful! Finally I used an abrasive stone as ...
by pilgrim
08 Jul 2018, 21:50
Forum: Introductions
Topic: Hello from underground :)
Replies: 5
Views: 2304

Re: Hello from underground :)

This place must be very suggestive...
Looking forward to see some pictures of it!
by pilgrim
08 Jul 2018, 21:17
Forum: Shielding
Topic: Old lead
Replies: 23
Views: 8440

Re: Old lead

Ok, this morning I put into the castle the copper sheet, using the rings to keep it rolled, after a little bit of struggling now the castle is mounted again. The sheet is taller than the castle, so it juts out few cm, but in a future non so far, I will cast another ring and the top of the castle to ...
by pilgrim
08 Jul 2018, 16:12
Forum: Shielding
Topic: Old lead
Replies: 23
Views: 8440

Re: Old lead

Good morning Alain, many thanks for your post, very clear and interesting, and for time you dedicated to it. When the liner will be finished, probalbly I'll buy other lead, but in sheets this time! To wrap around the existing shield, to increase the thickness keeping it demountable. Probably at the ...
by pilgrim
08 Jul 2018, 01:59
Forum: Introductions
Topic: Hello from underground :)
Replies: 5
Views: 2304

Re: Hello from underground :)

Fantastic introduction Alain! Very impressive!
If I were you I would be frightened from that place, I would be afraid to met Samara Morgan! :-):-):-)

Seriously, I would fear the humidity : the enemy n°1 for electronic instruments!
by pilgrim
08 Jul 2018, 01:48
Forum: Shielding
Topic: Old lead
Replies: 23
Views: 8440

Re: Old lead

I'm used to take spectra in the basement, to have lower background and to have minimum temperature differences between day and night. Actually it's the place with higher Radon concentration (checked with a Corentium, i have 300 Bq/mq in a couple of day), but I always leave the windows open to keep t...