In a radioactive decay experiment, the uncertainty in a number of measured counts, N, is given by VN. (This is a classic example of Poisson statistics). In an experiment to determine the level of...


By first calculating, and then combining, the number of counts in each individual 30- second period, what does student A determine as the average decay rate (in counts/sec), and what is its uncertainty?


In a radioactive decay experiment, the uncertainty in a number of<br>measured counts, N, is given by VN. (This is a classic example of Poisson statistics).<br>In an experiment to determine the level of background radiation in the laboratory, a<br>student (Student A) measures the number of background counts after 15 successive 30-<br>second periods as<br>Total Elapsed Time Total No. of<br>(s)<br>30<br>Total Elapsed Time Total No. of<br>(s)<br>270<br>Counts<br>Counts<br>39<br>422<br>60<br>83<br>300<br>469<br>90<br>138<br>330<br>530<br>120<br>191<br>360<br>580<br>150<br>259<br>390<br>623<br>180<br>295<br>420<br>650<br>210<br>327<br>450<br>687<br>240<br>373<br>

Extracted text: In a radioactive decay experiment, the uncertainty in a number of measured counts, N, is given by VN. (This is a classic example of Poisson statistics). In an experiment to determine the level of background radiation in the laboratory, a student (Student A) measures the number of background counts after 15 successive 30- second periods as Total Elapsed Time Total No. of (s) 30 Total Elapsed Time Total No. of (s) 270 Counts Counts 39 422 60 83 300 469 90 138 330 530 120 191 360 580 150 259 390 623 180 295 420 650 210 327 450 687 240 373

Jun 03, 2022
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