Search found 230 matches

by luuk
29 Feb 2020, 02:52
Forum: Trading post
Topic: Mu-metal shields for diy detectors!
Replies: 0
Views: 242

Mu-metal shields for diy detectors!

Hi guys,
I have some nice mu-shields for shipping cost only, they are great for hobby use.
If you are interested please read the pdf.
Luuk
by luuk
21 Feb 2020, 03:36
Forum: The lounge
Topic: A complete different way to look at scintillation materials!
Replies: 3
Views: 263

Re: A complete different way to look at scintillation materials!

Hi Steven,
I shall ask him but at the moment I know he is very busy with some projects so it may take some time
But I let you know if he is willing to do that.
Luuk
by luuk
20 Feb 2020, 07:02
Forum: The lounge
Topic: A complete different way to look at scintillation materials!
Replies: 3
Views: 263

A complete different way to look at scintillation materials!

Hi Guys,
As the title says: A complete different way to look at scintillation materials!
If you are interested please read the pdf.
Luuk
by luuk
09 Feb 2020, 23:09
Forum: General discussion
Topic: Help wiring a crismatec 1.25" NaI (Ti) scintillator.
Replies: 7
Views: 540

Re: Help wiring a crismatec 1.25" NaI (Ti) scintillator.

Hi James,
Looking at your picture it looks like the thick white wire is HV (pos or neg?)
The coax center is signal the coax shield is ground, and the red wire is probably low power for the amplifier I would expect +5 or +12 Volt.
You could give it a try!
Luuk
by luuk
08 Feb 2020, 19:21
Forum: General discussion
Topic: Help wiring a crismatec 1.25" NaI (Ti) scintillator.
Replies: 7
Views: 540

Re: Help wiring a crismatec 1.25" NaI (Ti) scintillator.

Hi James, I saw it on eBay ,it is probably a custom made model so it will be very difficult to get data/info about it. Best is to open the back and try to see if you can get directly to the pmt connector/wires. Then it should be possible to connect it. Some picture from the electronics might help to...
by luuk
20 Jan 2020, 06:01
Forum: Detectors
Topic: Crystal shape and size
Replies: 3
Views: 341

Re: Crystal shape and size

Hi Marcel, Building a detector is not so difficult as you may think, it is fun to do and building your own detector and will save you a lot of money. You can get/find lots of information and support here on the forum to build your detector and I have always some materials for sale for real hobby pri...
by luuk
17 Jan 2020, 15:27
Forum: Detectors
Topic: Crystal shape and size
Replies: 3
Views: 341

Re: Crystal shape and size

Hi Marcel, The crystal size for most hobby use is in my opinion around 2”x2” but with a 1”x1” or even smaller you can have great results as well, if it fits the budget. Also it is more easy and cheaper to make a simple (lead) shield for a smaller detector than for a large one. If your interest field...
by luuk
06 Jan 2020, 06:47
Forum: Detectors
Topic: Building an XRF detector with CsI(Tl)
Replies: 2
Views: 359

Re: Building an XRF detector with CsI(Tl)

Hi Steven, Yes, a thin slice of CsI(Tl) can be used as xrf detector best example is the Rap-47 detector. It is simple to build a detector like that, only the tricky part is you will need a good pmt that has a low noise level that is not always easy to find. Simple and cheap aluminum house hold foil ...
by luuk
17 Dec 2019, 07:14
Forum: Spectrum
Topic: Refurbishing project of a large 5”x3” NaI(Tl) detector.
Replies: 6
Views: 500

Re: Refurbishing project of a large 5”x3” NaI(Tl) detector.

Hi guys,
Thank you all for all positive comments always nice to know that some of you read my reports.
Massimo: Unfortunately for you but this is my hobby and I do it for fun so I will keep my Comic Sans font for these report,
you have to get used to it :-)
Luuk
by luuk
10 Dec 2019, 05:42
Forum: Detectors
Topic: More fun with CeBr3
Replies: 4
Views: 411

Re: More fun with CeBr3

Hi Steven,
4.2% with a standard pmt is very nice, great detector!!
Luuk