共 50 条
- [1] Measurement, in roentgens, of the gamma radiation from radium by the free-air ionization chamber JOURNAL OF RESEARCH OF THE NATIONAL BUREAU OF STANDARDS, 1940, 24 (03): : 247 - 268
- [3] Measurement of supervoltage X-rays with the free-air ionization chamber JOURNAL OF RESEARCH OF THE NATIONAL BUREAU OF STANDARDS, 1938, 21 (01): : 19 - 44
- [4] Measurement of supervoltage x-rays with the free-air ionization chamber AMERICAN JOURNAL OF ROENTGENOLOGY AND RADIUM THERAPY, 1939, 41 : 256 - 275