Search found 12 matches

by ZeeCaptain
25 Oct 2017, 17:28
Forum: General discussion
Topic: Neutron Source (Fusor vs. Alpha-Beryllium) and Neutron shielding
Replies: 6
Views: 3577

Neutron Source (Fusor vs. Alpha-Beryllium) and Neutron shielding

Hi, i want to experiment a bit with neutron activation and for this i need a neutron source. The two options i am seing here are a Alpha-Beryllium source or building myself a Farnsworth-Hirsch-Fusor. I would love to have my own fusor but the protabillity of the Alpha-Beryllium source is also quite n...
by ZeeCaptain
25 Oct 2017, 16:55
Forum: Shielding
Topic: Improving my shielding
Replies: 4
Views: 3343

Re: Improving my shielding

Thanks for your answers! I think i am going with the Sn95Sb4Cu1 for some extra durability. Also i don't really want to glue it to the single elements so i am a bit more flexible with the setup. Instead i think i am going to glue it onto a magnetic film so i can attach it to different plates and remo...
by ZeeCaptain
07 Oct 2017, 00:19
Forum: Shielding
Topic: Improving my shielding
Replies: 4
Views: 3343

Improving my shielding

Hi, at the moment i use 15 40x10x3cm 10kg Steelplated lead plates as my shielding. (so i get about 6cm shielding in allmost any direction) The normal background with my detector is around 105 cps and in the shielding, about 2.2cps, but on the side the cables come out, there is no plate but a bucket ...
by ZeeCaptain
27 Jul 2017, 03:37
Forum: General discussion
Topic: Overhoff 200SB
Replies: 2
Views: 1818

Re: Overhoff 200SB

I don't know how the device will know if the radiation is coming from tritium. If it is just a detector calibrated for tiritum, could it be possible that the radon washout from rain affects the readings?
by ZeeCaptain
26 Jul 2017, 18:42
Forum: Spectrum
Topic: Spectrum of Fukushima soil
Replies: 12
Views: 4373

Re: Spectrum of Fukushima soil

I can confirm the peak in the 150ish area. I got it at 125 keV, FWHM is 8.97% in one, and at 142 keV HWHM 7.7% in another spectrum of fukushima-soil so this could be a real peak. But in my spectrum it is so small, only the peak finding algorithm detected it and i would most likely have overlooked it...
by ZeeCaptain
28 Jun 2017, 17:22
Forum: General discussion
Topic: How far can electron radiation penetrate flesh?
Replies: 1
Views: 1684

How far can electron radiation penetrate flesh?

Hello, currently i am writing a report about a few incidents where the Terac-25 radiation treatment device irradiated at least six people and i want to ask if the following incident could be possible with electron radiation. In the first accident, a woman developed red marks on the skin on her breas...
by ZeeCaptain
28 Jun 2017, 06:16
Forum: Spectrum
Topic: 26.3 KeV Americium line?
Replies: 4
Views: 2125

Re: 26.3 KeV Americium line?

Sorry for digging up the old thread... But shouldn't the 26.3 keV Peak be much smaller? I got a Am-241 Source too. The 26.2 keV peak is 12394 counts and the 59.5 keV peak is 68237. So the main peak is 5.5 times higher than the 26.3 keV one. I calculated the efficiency for the two energies with my se...
by ZeeCaptain
30 May 2017, 22:45
Forum: Shielding
Topic: Water shielding
Replies: 4
Views: 3397

Water shielding

Hi, i ordered 14 kg lead-balls a short time ago and now i am planning on creating my shielding. While doing this i thought: Why take lead if you can take water? Is there any mayor downside using water beside the size and that it is maybe is not the best idea working with very expensive toys near/in ...
by ZeeCaptain
24 May 2017, 20:53
Forum: General discussion
Topic: Question about check sources
Replies: 18
Views: 5092

Re: Question about check sources

Thank you all for your answers! I did not know the ARD regulationbut the normal german laws, thank you for pointing this out! So i cannot buy the set i wanted. Thank you very much sgt_bear for you usefull resources! You really helped me out with the ARD. Instead i will go for a 0.1┬ÁCi Cs-137 Source ...
by ZeeCaptain
24 May 2017, 18:58
Forum: Introductions >> Start Here !
Topic: Introduction
Replies: 2
Views: 1924

Re: Introduction

Hello Steven,

thank you very much!