WINDOWLESS, FLOW TYPE, PROPORTIONAL COUNTER FOR COUNTING C-14

[1] A METHANE FLOW BETA-PROPORTIONAL COUNTER [J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 1949, 20 (05) : 347 - 349

[2] INSTRUMENTS FOR MEASURING RADIOACTIVITY [J]. ANALYTICAL CHEMISTRY, 1949, 21 (03) : 348 - 352

[3] Calvin M., 1949, ISOTOPIC CARBON

[4] AN INTERNAL GEIGER COUNTER FOR THE ASSAY OF LOW SPECIFIC ACTIVITY SAMPLES OF CARBON-14 AND OTHER WEAK BETA-EMITTERS IN BIOLOGICAL SAMPLES [J]. SCIENCE, 1949, 109 (2840) : 566 - 567

[5] ENERGY OF BETA-RADIATION FROM S-35 AND C-14 [J]. PHYSICAL REVIEW, 1947, 72 (11): : 1097 - 1100

[6] SELF-ABSORPTION CURVES OF C-14-LABELED BARIUM CARBONATE, GLUCOSE, AND FATTY ACIDS - INFLUENCE OF PHYSICAL FORM OF SAMPLE [J]. ANALYTICAL CHEMISTRY, 1949, 21 (12) : 1511 - 1513

[1] A METHANE FLOW BETA-PROPORTIONAL COUNTER [J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 1949, 20 (05) : 347 - 349

[2] INSTRUMENTS FOR MEASURING RADIOACTIVITY [J]. ANALYTICAL CHEMISTRY, 1949, 21 (03) : 348 - 352

[3] Calvin M., 1949, ISOTOPIC CARBON

[4] AN INTERNAL GEIGER COUNTER FOR THE ASSAY OF LOW SPECIFIC ACTIVITY SAMPLES OF CARBON-14 AND OTHER WEAK BETA-EMITTERS IN BIOLOGICAL SAMPLES [J]. SCIENCE, 1949, 109 (2840) : 566 - 567

[5] ENERGY OF BETA-RADIATION FROM S-35 AND C-14 [J]. PHYSICAL REVIEW, 1947, 72 (11): : 1097 - 1100

[6] SELF-ABSORPTION CURVES OF C-14-LABELED BARIUM CARBONATE, GLUCOSE, AND FATTY ACIDS - INFLUENCE OF PHYSICAL FORM OF SAMPLE [J]. ANALYTICAL CHEMISTRY, 1949, 21 (12) : 1511 - 1513