Search found 210 matches

by luuk
22 Nov 2019, 23:29
Forum: Detectors
Topic: Detector type
Replies: 10
Views: 2668

Re: Detector type

Hello Sibir The answer for your question is the same as for the detectors with the blue base I gave to Kolja. If you make a standard vd with Cathode on pin14 and Anode on pin11 than it is simple just make the resistor chain 2,1,1,1,1 etc. even if there are some pins not connected, it will still give...
by luuk
18 Oct 2019, 05:31
Forum: Detectors
Topic: size of the cristal
Replies: 2
Views: 156

Re: size of the cristal

Hi Peter, Size has non or very limited influence on the resolution, configuration is the main subject that causes a detector to be good or bad. Best results will be achieved when the crystal is just a little smaller than the pmt so the coverage of the crystal is maximized. Secondly the dimensions of...
by luuk
13 Oct 2019, 20:21
Forum: Detectors
Topic: Tracerco PED + Personal Electronic Dosimeter
Replies: 5
Views: 206

Re: Tracerco PED + Personal Electronic Dosimeter

Hi Massimo, We use for some years the Tracerco ped as our pd, I have it every (work)day with me and I must say it works good only one error that I have found, and that is that it is sensitive for static electricity. E.g. if I take of my woolen sweater off a cold dry day of and I forget to ground mys...
by luuk
12 Oct 2019, 22:06
Forum: Spectrum
Topic: Radioactivity in public
Replies: 8
Views: 286

Re: Radioactivity in public

Hi Stefan, Tc-99m is used in diagnostics sometimes in real high doses, so very easy to detect even after a few day. My colleague got a scan some years ago and was injected with Tc-99m, the next day when he got back to work my dosimeter got almost to the maximum alarm level and I was sitting about 3 ...
by luuk
08 Oct 2019, 15:24
Forum: Detectors
Topic: Harshaw 16X16MKS12/3.5 B-X scintillation probe
Replies: 5
Views: 241

Re: Harshaw 16X16MKS12/3.5 B-X scintillation probe

Harshaw used to multyiply the the size by 4 so this detector 16x16 is actual a 4"x4", it is has a mu metal shield (M) for the (KS) I have to look not certain, the pmt(B) is 3.5" and the (X) stands for special. (not standard)
Luuk
by luuk
08 Oct 2019, 05:39
Forum: Detectors
Topic: Harshaw 16X16MKS12/3.5 B-X scintillation probe
Replies: 5
Views: 241

Re: Harshaw 16X16MKS12/3.5 B-X scintillation probe

Hello Kyle, Even if a crystal is old or wet it still will give you more or less the same amount of counts as a new detector, only thing that will happen is that the resolution is decreasing and peak(s) will be broadened, only if the crystal is very wet you will lose some low energy counts in the wet...
by luuk
08 Oct 2019, 02:59
Forum: Detectors
Topic: Scionix 22C25 CsI (Tl) detector test
Replies: 3
Views: 244

Re: Scionix 22C25 CsI (Tl) detector test

Hi Fer,
Well I must say it took some time before you used the crystal but you made a nice detector with this CsI(Tl) crystal, and the results are very good, thanks for the great report.
Luuk
by luuk
27 Sep 2019, 15:36
Forum: Detectors
Topic: 2 scionix 38b57 comparison
Replies: 6
Views: 2054

Re: 2 scionix 38b57 comparison

These detectors are around 8 to 17 years old.
Luuk
by luuk
08 Sep 2019, 18:28
Forum: Detectors
Topic: promotion film from BNC/Scionix
Replies: 5
Views: 269

Re: promotion film from BNC/Scionix

Hi Tom, I am not very good video or photo material so that must be the reason 😊 Hi Massimo, No we normally don’t give tours but now and then I did show a visitor(hobbyist) the company but I think I did it maybe 2-3 times only. The management is difficult to convince to let me do it, so I’m sorry! I ...
by luuk
08 Sep 2019, 03:00
Forum: Detectors
Topic: promotion film from BNC/Scionix
Replies: 5
Views: 269

promotion film from BNC/Scionix

Hi guys,
You might be interested to see it, it is just a short promotion video made by BNC at Scionix.
Luckily I was free that day so I am not in the video.
Luuk

See link:

https://www.youtube.com/watch?v=qIFbrAG ... e=youtu.be