Rosen J C, Laurer G R, Eisenbud M
Science. 1967 Jul 7;157(3784):77-8. doi: 10.1126/science.157.3784.77.
The feasibility of measuring carbon-14 and tritium in vivo has been demonstrated in the rat; thin scintillation detectors were used for the measurement of bremsstrahlung produced by these soft beta emitters. Measurements of tritium in vivo are limited to the study of surface phenomena, whereas bremsstrahlung produced by carbon-14 may be detected from depths of several centimeters.
在大鼠体内测量碳-14和氚的可行性已得到证实；使用薄闪烁探测器来测量这些软β发射体产生的轫致辐射。体内氚的测量仅限于表面现象的研究，而碳-14产生的轫致辐射可以从几厘米深处检测到。
