ABSTRACT
Introduction .................................................................................................................................... 181 Uranium Decay Series and 222Rn ................................................................................................... 182
Solution to Decay Equations Using a Recurrence Formula ................................................. 184 Potential α-Energy Concentration ........................................................................................ 185 Radon Sample in a Closed Container or Dened Volume of Air.......................................... 186 Effect of Deposition on Radon Progeny Concentration ....................................................... 187 Radon Progeny Buildup on a Filter ...................................................................................... 190
Thorium Decay Series and 220Rn ................................................................................................... 193 Solution to Decay Equations Using a Recurrence Formula ................................................. 194 Potential α-Energy Concentration ........................................................................................ 196 Thoron Sample in a Closed Container or Dened Volume of Air ........................................ 197 Effect of Deposition on Thoron Progeny Concentration ...................................................... 198 Thoron Progeny Buildup on a Filter ..................................................................................... 198
Actinium Decay Series and 219Rn .................................................................................................. 201 Solution to Decay Equations Using a Recurrence Formula .................................................202 Potential α-Energy Concentration ........................................................................................204 Actinon Sample in a Closed Container or Dened Volume of Air .......................................204 Effect of Deposition on Actinon Progeny Activities .............................................................204 Actinon Progeny Buildup on a Filter ....................................................................................205
References ......................................................................................................................................208
