Global Radiation monitoring system / Projects / Forums

Forums

4hv.org :: Forums :: Projects

« Previous topic | Next topic »

Global Radiation monitoring system

first previous 13 14 15 16 next

Move Thread

LAN_403

radhoo

Thu Aug 21 2014, 09:45AM

Registered Member #1938 Joined: Sun Jan 25 2009, 12:44PM
Location: Romania
Posts: 699

Here are some pics with the uRADMonitor aluminium boxes, rainproofed using rubber gaskets:

More details on:

radhoo

Thu Aug 21 2014, 05:32PM

Registered Member #1938 Joined: Sun Jan 25 2009, 12:44PM
Location: Romania
Posts: 699

Second unit in Florida, USA, just went online:

1408642327 1938 FT155675 14 08 21 Header

Mads Barnkob

Thu Aug 21 2014, 06:39PM

Registered Member #1403 Joined: Tue Mar 18 2008, 06:05PM
Location: Denmark, Odense C
Posts: 1968

Now it won't be long before there is enough nodes to make that heat map overlay :)

I am happy about your success in the start up and really looking forward to what will happen with much more units available for purchase soon.

radhoo

Sun Aug 24 2014, 10:54PM

Registered Member #1938 Joined: Sun Jan 25 2009, 12:44PM
Location: Romania
Posts: 699

Let's hope so, Mads!

This weekend I did some work on the server. Hopefully the portal is now easier to use. Read the details here:

See the results here:

radhoo

Wed Aug 27 2014, 10:57AM

Registered Member #1938 Joined: Sun Jan 25 2009, 12:44PM
Location: Romania
Posts: 699

A picture says more than a thousand words. So be it:

Interested in getting one? Yes, you can: Join the network

radhoo

Mon Sept 01 2014, 09:02PM

Registered Member #1938 Joined: Sun Jan 25 2009, 12:44PM
Location: Romania
Posts: 699

Following months of improvements, tests and verifications, both in hardware and software, the final model A design has been put into production and first batch of test units is now available. These will be used to expand the network even further. The quality of these units is impressive: small in size and optimised for low power consumption, they are ready to keep an eye on the radiation levels as independent radiation monitors.

For those interested in getting a unit, drop me a message. There is a minimal cost to cover the cost of components, and the shipping cost. There is also one unit listed on ebay:

Conundrum

Fri Sept 12 2014, 03:24AM

Registered Member #96 Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4059

Re. AZ radiation spikes, could it be thunderstorms?
I've seen this first hand as all three of my counters including one in a fridge had numerous synchronous counts when large bolts hit.

Shrad

Mon Sept 15 2014, 10:23AM

Registered Member #3215 Joined: Sun Sept 19 2010, 08:42PM
Location:
Posts: 780

radhoo,

I saw there is a project about a large scale cosmic ray detector going on at hackaday,

maybe you should come in contact with the guy and combine efforts, as you already provide most of what he is expecting and had a successful start

I guess that in that domain, collaboration is the key, and you platform could well become a useful and recognized source of data for research programs

I would see a large benefit into contacting universities so that any physics department could purchase one of your devices and participate in the grid data, thus providing a unified effort to increase the covered area

I also think that a PIN diode would make a nice smaller version, and that you could incorporate a radiation spectrometer based on FFT in order to identify isotope families (there is a similar device in Elektor magazine)

radhoo

Fri Nov 07 2014, 11:54PM

Registered Member #1938 Joined: Sun Jan 25 2009, 12:44PM
Location: Romania
Posts: 699

Hi Andre & Shrad,

@Andre, now it will be easier to track any variations, with the increasing density of units in the network. The more the better.

@Shard, I had some plans to get in touch with universities, and I still want ot do that. Time is again the only concern: the need to update the webportal, and make it better and more usable is now more pressing. Also the mobile app (Android + iOS) . So many things to do, and need to take them step by step. When I get these in place, I hope to have the time to continue improving the hardware, that is producing the model B, but also doing some research on PIN detectors. I have some nice photodiodes waiting...

edit: also the elektor design was also used for the apoc detectors we've seen on kickstarter a year ago. I'm also planning an indiegogo campaign ( available worldwide, unlike KS)

Conundrum

Wed Nov 12 2014, 06:52AM

Registered Member #96 Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4059

I sent a message re. possible theory about TGFs causing spurious signals in the counters.
It is possible that under some conditions an otherwise stable tube run near its voltage limit can form a plasma oscillation and show false counts when hit by a TGF.
This normally shows up as ridiculous count rates and can be reliably correlated if multiple tubes all show the same spike; shutting off the voltage for a few seconds normally quenches it.

May be worth adding a "fail safe" that detects the TGF directly using a diode+scintillator (I had an idea about using solar cells from calculators) and this would also provide some data about the origin of the TGF if there were different thicknesses of lead over each of the cells.

first previous 13 14 15 16 next

Moderator(s): Chris Russell, Noelle, Alex, Tesladownunder, Dave Marshall, Dave Billington, Bjørn, Steve Conner, Wolfram, Kizmo, Mads Barnkob