Improved sample preparation procedure for gross alpha counting on gas-flow proportional counter. - Burn, Adam G.; Li, Xin; Haines, Douglas K.; Hussain, Mirza M.; Yang, Karl X.; Marrantino, Joseph C.; Syed, Umme-Farzana; Bari, Abdul; Semkow, Thomas M. (Journal of Radioanalytical & Nuclear Chemistry, 2020)