field, we determine the efficiency for various energies directly beneath the detector and the angular efficiency since most of the energy being seen by the detector comes at an angle -- I can't remember exactly where it is, Harold -- somewhere between 300 and 800, I guess. , - The next slide (JK-6) shows the calibration method with the detector haiiging- on-the support there and the sources placed at various angles. We assume ‘that the detector in a hemispheric sense essentially has the same sensitivity... -.. The (JK-7) next_stide I think I will show the protocol of the 10 measurements. li a little while ago,—and we would usually contact the residents or owner -- 12 they sometimes got disturbed when they saw all of this claptrap set up in 13 their front yard if youdidn'tcontact them, or they weren't home -- and 14 make the measurements, do the site description and mapping, do a few site 15 photographs, and retrieve the equipment and go on our way. 16 We take Frosty Miller's site descriptions which he described The next slide (JK-8) I think will show some of the -- this is by one 1? of our better ecological artists. 18 have made to identify the site rather precisely so Howard's people could 19 then come in and locate it. 20 flag on them so that they could see it. . Very often they could see the 21 tripod leg holes in the lawn at the site that we had measured. “These are the kind of measurements we In a few placés—we placed pegs with a little 22 This is a page right out of the log book. 23 DR. CALDWELL: 24 DR. KORANDA: 25 takes about 30 minutes. 26 DR. CALDWELL: 27 28 . How often do you have to have it-set up? We are measuring 1,800 seconds, -semething like that. It — It's not set up for 24 or 48 hours.-~That's what I was wanting to know. DR. KORANDA: Yes. Oh, no. 83