Search found 83 matches

by MartinM
22 Jun 2023, 15:59
Forum: Software
Topic: Impulse for PC 😁
Replies: 7
Views: 2002

Re: Impulse for PC 😁

I tried now again and it's better. Probably some issue with your web hosting. I assume it's some shared hosting and that is often very unreliable and depends on load of others on the same node.
For me sometimes also the forum takes about a minute to load.. Happens for the last couple of weeks.
by MartinM
22 Jun 2023, 06:37
Forum: Software
Topic: Impulse for PC 😁
Replies: 7
Views: 2002

Re: Impulse for PC 😁

Hi Steven, I wanted to download the file but recently access to your site and forum from my location (Central Europe) is terribly slow. My download speed for that file is 8 KB/s which is something I've seen in the 90s.. So it looks like I won't be able to download it...
by MartinM
10 Apr 2023, 18:48
Forum: General discussion
Topic: Ethics of purchasing scintillation crystals from China
Replies: 4
Views: 1471

Re: Ethics of purchasing scintillation crystals from China

339156635_107436538971578_6425568883377279767_n.jpg
339156635_107436538971578_6425568883377279767_n.jpg (28.27 KiB) Viewed 1458 times
by MartinM
05 Apr 2023, 21:19
Forum: Spectrum
Topic: Depleted Uranium 238
Replies: 7
Views: 2191

Re: Depleted Uranium 238

Hi Marco, on the contrary, I'm rather impressed by your device as it delivers very good results given it's a larger crystal and CsI.. Also your peaks are pretty well calibrated, not far off. Yes, I believe the "H" and "I" peaks are coming from Pa234m: http://nucleardata.nuclear.l...
by MartinM
05 Apr 2023, 01:42
Forum: Spectrum
Topic: Depleted Uranium 238
Replies: 7
Views: 2191

Re: Depleted Uranium 238

Here my spectrum made using the CapeSym SrI2(Eu) with temperature compensation.
I calibrated this with Cs137 for its 32 keV peak too, it's quite sensitive at lower energies, so it should be accurate. It's showing a similar peak @ 34 keV.
The reference picture above says it's escape peaks.
U.png
U.png (23.3 KiB) Viewed 2167 times
by MartinM
04 Apr 2023, 21:32
Forum: Spectrum
Topic: Depleted Uranium 238
Replies: 7
Views: 2191

Re: Depleted Uranium 238

"D" might also be the U X-Ray
For reference:
u235_d.gif
u235_d.gif (10.12 KiB) Viewed 2177 times
by MartinM
07 Mar 2023, 04:21
Forum: Detectors
Topic: SrI2(Eu) detectors
Replies: 62
Views: 14604

Re: SrI2(Eu) detectors

Thorium metal:
Th232.png
Th232.png (48.46 KiB) Viewed 1073 times
by MartinM
04 Mar 2023, 07:43
Forum: Detectors
Topic: SrI2(Eu) detectors
Replies: 62
Views: 14604

Re: SrI2(Eu) detectors

Co60, very nice resolution:
Co60.png
by MartinM
27 Feb 2023, 07:32
Forum: Detectors
Topic: SrI2(Eu) detectors
Replies: 62
Views: 14604

Re: SrI2(Eu) detectors

Sorry, I don't have any X-Ray technology.
Just finished the energy correction/calibration. Was struggling with that as it didn't work until I figured out that the channel/energy entries in the table need to be in ascending order.
Lu176
Lu176
Lu176.png (66.87 KiB) Viewed 1106 times
Aged Am241 with small Np237 buildup
Aged Am241 with small Np237 buildup
Am+Np.png (62.97 KiB) Viewed 1106 times
by MartinM
26 Feb 2023, 09:42
Forum: Detectors
Topic: SrI2(Eu) detectors
Replies: 62
Views: 14604

Re: SrI2(Eu) detectors

Just got a SC-MacroPixel-MCA with a declared resolution of 3.15%, so I wanted to share some experience. The device is small, compact and looks great. A very nice job given how much is integrated inside. Just plug in the cable, and start the CapeMCA software. Simple and stable. The software is quite ...