Showing posts with label dose rate. Show all posts
Showing posts with label dose rate. Show all posts

Monday, March 26, 2012

Rad-DX Mesh Network

Everyone knows that a single camera doesn’t make a very effective security system.  Even if placed in an optimal location, a single camera can miss important details – a fact that becomes very apparent on countless action movies.  The same is true with radiation detection.  Many detectors working together can identify threats that might slip by a single detector.  This is the core idea behind the mesh network capabilities of the Rad-DX
The D-tect Sensor Net, a wireless mesh network built on the 802.15.4 hardware layer, is responsible of the novel network capabilities of the Rad-DX..  All Rad-DXs used in a system (for example multiple devices used at various entrances of building complex) communicate to each other via the D-tect SensorNet.  Each Rad-DX in range of the system automatically connects to the network, the devices automatically form the most efficient network possible, and all units can be monitored at once.  Because each Rad-DX has integrated WiFi and Ethernet, network data is available to smartphones, iPads, and PCs from anywhere in the world.
The D-tect SensorNet is a self-healing network, meaning that even if a Rad-DX loses its connection to the rest of the network (power outage, communication failure, etc.), the rest of the Rad-DXs will route communications around the inoperative unit and continue to communicate effectively.  Have a large area to cover?  The node-to-node range of the Rad-DX is up to 1 km (line of sight), and systems with multiple nodes can cover great distances.  Integrated GPS in every Rad-DX unit allows you to quickly identify the exact location of incidents.
Each detector is able to communicate with the entire mesh network.  Information is relayed anywhere in the world by units in WiFi range.
The communication abilities of the network are supplemented by the following unique features to ensure security.  First, the both the network and WiFi connections are 128-bit encryption protected.  Monitoring can be conducted in real-time, or past even logs can be reviews.  And floor plans can be integrated into the Rad-DX display to provide an intuitive understanding of where radiation is detected. 
So, remember the lessons of James Bond and don’t try to protect your facility with a single detector.  With a mesh network of Rad-DXs you’ll be able to identify and track threats in ways that were never possible before.  Visit the Rad-DX page for more mesh network explanations and examples.

Tuesday, March 6, 2012

Relative Doses of Radiation

As we've discussed earlier on this blog, to truly understand the health threat that radiation poses we have to put radiation in perspective. To help with this, we've just released a page that lists a number of relative doses of radiation and how they compare to the alarm levels of the MiniRad-D radiation detector. When it detects radiation, the MiniRad-D displays a number from 1 to 9 to indicate the strength of the radiation. The ranges of these numbers are listed on the graph and compared with varying radiation doses.

Because the MiniRad-D is a very sensitive device, lower levels of radiation that it picks up pose almost no health threat at all.
D-tect Systems is supplier of advanced radiation and chemical detection equipment sold around the world. www.dtectsystems.com.

Putting Radiation in Perspective

Due to the recent nuclear crisis in Japan, we've seen much more technical jargon than usual on major news stories. A reason for this is that radiation physics is a highly technical field and even quantifying radiation can be very complicated: a shift of a few decimal places can mean the difference between no risk and a major radiological hazard. Even the units are new - how many people have ever used 'becquerel' or 'half-life' in a casual conversation?

In conjunction of the new language hitting newspapers and TV screens, we've seen a great push to put radiation in perspective. This basic education goes a long way to help people make choices on how much they should worry about what is going on in Japan and what they can do to protect themselves. Visual examples are popular such as this one on xkcd.com, as well as thorough explanations discussed here by Harvard Medical School.

In supporting this movement, we recently released a Radiation Basics Sheet that we put together with data from the World Nuclear Association and US Environmental Protection Agency. We included some relative doses such as how much radiation you'll get from watching a year of TV, how much from a chest x-ray, and how much you'll get from flying across the US. We hope that this information can be used to turn dispel fears and boost confidence. 

Our sheet was recently featured on the blog of STORMWATER (a journal for surface water quality professionals). The post What do the Numbers Actually Mean? is very informative and talks about radiation contamination in Tokyo's tap water. We're excited that someone is putting this information to good use, and we're grateful to STORMWATER for the coverage.

If you would like more information to help you put radiation risks in perspective, we here at D-tect Systems have experts in the radiation detection field who can provide more information by email (info@dtectsystems.com) or even on the phone (801.495.2310). 

D-tect Systems is supplier of advanced radiation and chemical detection equipment sold around the world. www.dtectsystems.com.