Millirad. You would have to sit on that spot almost 35 hours just to receive the same radiation as a flight. We thought that would help folks put the radiation levels in context. The source was removed by the navy contractor, and then, we surveyed the soil after it was removed and no residual contamination was found. This is the spectrum that i was talking about before. The one on the right is a picture of mother nature. You can see a little peak at the bottom. These are all radio active materials, and this is what matter nature looked like. Before the source was removed, we used our falcon 5000, and you can see that peak on the left. It goes straight up. Thats raidium 226. The detector sees that fingerprint and plots it on the spectrum. So the spectrum on the right is after we removed the source, and thats back to mother nature. The low energy peak, so after we had completed parcel a1 survey, late october, early november, my staff went back to the office and started combing overall th
You get about 3 to 3. 5 millirad. You would have to sit on that spot almost 35 hours just to receive the same radiation as a flight. We thought that would help folks put the radiation levels in context. The source was removed by the navy contractor, and then, we surveyed the soil after it was removed and no residual contamination was found. This is the spectrum that i was talking about before. The one on the right is a picture of mother nature. You can see a little peak at the bottom. These are all radio active materials, and this is what matter nature looked like. Before the source was removed, we used our falcon 5000, and you can see that peak on the left. It goes straight up. Thats raidium 226. The detector sees that fingerprint and plots it on the spectrum. So the spectrum on the right is after we removed the source, and thats back to mother nature. The low energy peak, so after we had completed parcel a1 survey, late october, early november, my staff went back to the office and st
There we go. Sorry about that okay. What was our methodology for parcel a1. We had three main ideas when we started our survey. First was were going to do a walk over survey scan. This takes a lot of physical work and this was a large, 50 acre parcel so show you the instruments and how we did that walk over it scanned survey. We also employed what we call a scanning system. It is a fourwheeldrive vehicle the pulls a trailer. It has two very large volume sensitive sodium iodine detectors. Theyre connected to a laptop, and every second is conflicting a piece of data as to what is beneath that detector. Any anomalies we would found would go back and check with another instrument that i will demonstrate in a few minutes. This is going the wrong way. Parcel a1 is constructed of survey units. They were composed of all kinds of different natural materials, manmade materials. You have different wood chips and clay material, you had different degrees of vegetation, different types of rocks such
Spot almost 35 hours just to receive the same radiation as a flight. We thought that would help folks put the radiation levels in context. The source was removed by the navy contractor, and then, we surveyed the soil after it was removed and no residual contamination was found. This is the spectrum that i was talking about before. The one on the right is a picture of mother nature. You can see a little peak at the bottom. These are all radio active materials, and this is what matter nature looked like. Before the source was removed, we used our falcon 5000, and you can see that peak on the left. It goes straight up. Thats raidium 226. The detector sees that fingerprint and plots it on the spectrum. So the spectrum on the right is after we removed the source, and thats back to mother nature. The low energy peak, so after we had completed parcel a1 survey, late october, early november, my staff went back to the office and started combing overall the data. And one of the Staff Members dis
An anomaly. The top instrument is a falcon 5,000. Uses a high purity geranium detector. The bottom ways is called the inspector 1,000 which uses a bromide detector. Both of those instruments are able to generate a spectrum. Think of it as a fingerprint. Both these instruments can see whatever gamma rays are coming off the ground, from whatever natural or manmade radio radioisotopes are there. Each isotope has its own fingerprint, so the spectrum literally visualizes each fingerprint for each radionuclide in the soil. So if we found an anomaly, and i can discuss anomalies later, if we found an anomaly, we would go to the spot, and we we do use the inspector 1,000 and set the detector on it for 30 minutes. It is a long count time. We would generate a nice looking spectrum, and then from that spectrum, using the fingerprint knowledge, we know what is president present in the soil overall, here is a demonstration , a visual of our staff using the inspector 1,000 on an anomaly. There were 1