DR. MCCLELLAN: DR. KORANDA: thing. This one here they had 45 minutes, 16:45 to 17:30. Yes. That includes set up time and all of that sort of We would still be out there if it were that long a measurement. The next slide (JK-9). measurements made. horizontal scale, cesium-137. This is a frequency distribution of the total I can't say too much about it because it has an unknown and This the units though are in counts is essentially the cesium-137 flux, per minute of and the data are skewed by some high values, in this case from natural habitats which were measured, and they represent, according to Harold and our own observations, 10 at least a different situation from the idealized site, namely a lawn. The next slide ll (JK-10) will show the natural habitat data with the 12 maximum flux here being 85, which 13 slide for the total data base; and the next slide (JK-11) shows the lawn 14 data which is a little more orderly, but there are a few lawns which we 15 will probably explain with the high concentrations out here when we get the 16 vertical distribution of the radioactivity at that site. The 17 next slide (JK-12) I I think think is what it was on the previous shows the Las Vegas site here at 18 Squires Park with the diodes and the P.1.C. or ionization chamber, and this 19 is our system here which 20 standing system which EML has used, and we had -- I think that's theirs, 21 isn't 22 measurements at this site. 23 it, Harold? is tethered to a truck, Yeah, The next slide (JK-13) that's yours. were is the free making spectrum obtained at that place (Squires Park). 25 really see it and, 26 photopeak 27 natural radioactivity. of course, People wonder if you can with the solid state detector the cesium is readily discernible even in the presence of high The next slide (JK-14) parallel I think shows the region of interest in that 24 28 We and this shows levels of one of our measurement sites over 84 in