P4 us Background) Counts N (Counts minus Background) CountsN (Counts minu 1. 1589 2. 1602 3....
W2. If the number of counts per unit time that remains after a beam of particles passes through a thickness x of a material is given by (21.2) then one can easily see that dividing by I, and taking the natural logarithm of both sides, one obtains (21.4) Plot In(I/Io) versus x in Excel. Introduce a linear Trendline to curve-fit the data, and do not forget to select "show equation on graph". The slope of the line will give you...