Interesting trace


Advanced search

Message boards : Science : Interesting trace

Author Message
Profile ChertseyAl
Avatar
Send message
Joined: 16 Jun 11
Posts: 152
Credit: 394,231
RAC: 150

Message 1823 - Posted: 28 Jun 2013 | 17:14:25 UTC

Noticed that this host had gone yellow. Then looked at the trace and see that 24-hour cycle that was discussed before:



Cheers,

Al.

____________

Dmitry
Avatar
Send message
Joined: 27 Jul 12
Posts: 22
Credit: 228,978
RAC: 0

Message 1855 - Posted: 6 Jul 2013 | 20:26:38 UTC
Last modified: 6 Jul 2013 | 20:27:11 UTC

One more interesting is

Spikes seem to be every day at approx 8:00 AM UTC

Profile ChertseyAl
Avatar
Send message
Joined: 16 Jun 11
Posts: 152
Credit: 394,231
RAC: 150

Message 1898 - Posted: 16 Jul 2013 | 16:30:37 UTC - in response to Message 1855.

Yes, after 5 'quiet' days, it's starting again.

Would love to know what is causing this!

Cheers,

Al.

____________

Profile jhelebrant
Avatar
Send message
Joined: 30 Jul 12
Posts: 27
Credit: 1,521
RAC: 0
Message 1901 - Posted: 17 Jul 2013 | 14:16:07 UTC

First it would be useful to know where your detector is located. For example, radon can have influence on this.

Second, I see, that your dose rate values are ranging from 350 to 500 nanoSv/h (according to graph in "Message 1823") which is slightly bigger. Is it your normal background level?

I would check the geologic map of your locality - there could be rocks with higher radioactive elements amount. Other possible source are building materials ...

Dmitry
Avatar
Send message
Joined: 27 Jul 12
Posts: 22
Credit: 228,978
RAC: 0

Message 1904 - Posted: 18 Jul 2013 | 19:14:36 UTC

According to the map the sensor 5925 is located in the Cinema City Kinepolis and near the rail way. Can the spikes be caused by some radioactive goods transported by trains?

Profile jhelebrant
Avatar
Send message
Joined: 30 Jul 12
Posts: 27
Credit: 1,521
RAC: 0
Message 1923 - Posted: 26 Jul 2013 | 11:58:55 UTC - in response to Message 1904.

hi,
we discussed this with my colleague and according to him, those spikes take too long time to be caused by trains. Ok, I was also thinking about trains transporting something like coal with higher uranium amount but in such distance it could be not such high dose rates.

We should take in account an hardware problem in the detector. It would be nice to have also measurements from another detector near this one...

Profile ChertseyAl
Avatar
Send message
Joined: 16 Jun 11
Posts: 152
Credit: 394,231
RAC: 150

Message 1971 - Posted: 15 Aug 2013 | 17:13:10 UTC - in response to Message 1855.

One more interesting is

Spikes seem to be every day at approx 8:00 AM UTC


And the weird spikes are back again. Nothing showing on the nearest sensors to this one.

It would be great if the owner of the sensor could give some information ... Hint!

Cheers,

Al.

____________

Profile jhelebrant
Avatar
Send message
Joined: 30 Jul 12
Posts: 27
Credit: 1,521
RAC: 0
Message 1973 - Posted: 19 Aug 2013 | 9:37:34 UTC

Would be nice if the owner of the detector could test it in another location to prove or exclude detector hardware error. This is strange.

Profile TJM
Project administrator
Project developer
Project tester
Send message
Joined: 16 Apr 11
Posts: 291
Credit: 1,103,478
RAC: 372

Message 1974 - Posted: 19 Aug 2013 | 14:55:30 UTC - in response to Message 1973.

We have talked to the owner on IRC, the detector was exposed to sunlight and probably high temp caused these glitches.

Post to thread

Message boards : Science : Interesting trace


Main page · Your account · Message boards


Copyright © 2019 BOINC@Poland | Open Science for the future