Search found 81 matches

by pilgrim
07 Jul 2018, 22:01
Forum: Shielding
Topic: Old lead
Replies: 23
Views: 8646

Re: Old lead

Hi Alain, I cast the lead in Green Sand, a mixture of sand and bentonite (15-20% bentonite). I created the mold around a steel ring as a positive, then, once removed the ring I poured the fused lead into the mold. The inner ring's diameter is 175mm and 215mm the external. After the castings I machin...
by pilgrim
07 Jul 2018, 13:15
Forum: Shielding
Topic: Old lead
Replies: 23
Views: 8646

Re: Old lead

Hi Alain, thanks for your reply. Just few days ago I melted all the ingots into 9 rings and a bottom and believe me, only God knows how much oxide and dirt I removed! But now the shield is almost ready, only the liner is missing. Before melting the lead I made a comparison with a standard lead ingot...
by pilgrim
13 Jun 2018, 04:08
Forum: Detectors
Topic: ion chamber
Replies: 1
Views: 1885

Re: ion chamber

I think you have to ask to Livio, engineering@theremino.com, for more information.
by pilgrim
08 Apr 2018, 03:00
Forum: Spectrum
Topic: Thermal water, Bad Gastein
Replies: 3
Views: 1687

Re: Thermal water, Bad Gastein

Very interesting and nice spectrum.
by pilgrim
05 Apr 2018, 14:30
Forum: Shielding
Topic: Ask Wolfram Alpha about half value layer
Replies: 7
Views: 4293

Re: Ask Wolfram Alpha about half value layer

Hi Geoff,
do you put the tungsten layer inside or outside the lead?
by pilgrim
04 Apr 2018, 14:30
Forum: Shielding
Topic: Ask Wolfram Alpha about half value layer
Replies: 7
Views: 4293

Re: Ask Wolfram Alpha about half value layer

I didn't know Wolfram Alpha : thank you!
by pilgrim
25 Mar 2018, 18:59
Forum: Spectrum
Topic: Starter with Kr85
Replies: 2
Views: 1323

Re: Starter with Kr85

Hi Peter, interesting.
Do you think these tube starters are still available, for example on eBay?
by pilgrim
20 Mar 2018, 17:00
Forum: Software
Topic: PRA 17 Release
Replies: 4
Views: 2360

Re: PRA 17 Release

Hi Steven,
my fault, I used the comma as decimal point instead of the point.
Now it works fine.

Thank you.
by pilgrim
18 Mar 2018, 00:47
Forum: Software
Topic: PRA 17 Release
Replies: 4
Views: 2360

Re: PRA 17 Release

Hi Steven, this morning I was trying PRA 17 and during the calibration with LYSO PRA gave me this message: gaussian table overflow PRA_17_Message_1.png These are my settings PRA_17_Message_2.png This doesn't happen with PRA16, with same settings and same source and I don't understand the reason of t...
by pilgrim
26 Feb 2018, 15:22
Forum: Detector drivers
Topic: GS-PRO' potentiometer
Replies: 2
Views: 1622

Re: GS-PRO' potentiometer

Excellent!
Thank you Steven.