Week 8 lab

Title of Lab Name of Student University of Arkansas Grantham Date Introduction: To determine half live through a virtual experiment detector Background: To learn how to use radioactive samples and how they emit radiation which can be measured by a detector. Methods: We learned how to use the physics saviory to find the data for the tables and we also used data wrapper. Data: 1001+1003+1042/3=1015.3 Bismuth 211 Initial Activity 300 decays/sec Total time (secs) Trial 1: Decays/10 secs Trial 2: Decays/10 secs Trial 3: Decays/10 secs Average Decays/10s 0 0 0 0 0 30 374 402 419 398.3 60 768 776 774 772.67 90 1001 1003 1042 1015.3 120 1199 1243 1255 1232.3 150 1401 1399 1444 1414.67 180 1592 1627 1615 1611.3 210 1766 1766 1756 1762.67 240 1905 1892 1875 1890.67 626+562+576/3=588 Bismuth 211 Initial Activity 170 decays/sec Total time (secs) Decays/10 secs Decays/10 secs Decays/10 secs Average Decays/10s 0 0 0 0 0 30 254 204 210 222.66 60 476 496 413 461.66 90 626 562 576 588 120 768 709 711 729.33 150 880 847 827 851.33 180 982 937 918 945.66 210 1066 1007 1017 1030 240 1142 1060 1094 1098.66