Fig. 3From: Quantitative measurement of 219Rn radioactivity in exhaled breath from patients with bone metastasis of castration-resistant prostate cancer treated with 223RaCl2Time activity curve obtained in direct measurement of α-particles in breath of patient by an α survey meter from the start of 223RaCl2 administration. The count rate exceeded the measurable range (100 kcpm) at several tens of seconds after the start of administrationBack to article page