共 10 条
[1]
CURTISS LF, 1928, J OPTICAL SOC AM REV, V63, P363
[2]
An improved d.c. amplifying circuit
[J].
REVIEW OF SCIENTIFIC INSTRUMENTS,
1933, 4 (10)
:532-536
[4]
LAURENCE GC, 1932, CAN J RES, V7, P103
[5]
THE ABSORPTION OF GAMMA-RAYS FROM CO-60
[J].
CANADIAN JOURNAL OF RESEARCH SECTION A-PHYSICAL SCIENCES,
1947, 25 (06)
:303-314
[7]
Owen EA, 1922, P PHYS SOC LOND, V34, P0092
[8]
Paterson CC, 1917, P PHYS SOC LOND, V29, P215
[9]
PERRY WE, 1945, P PHYS SOC LONDON, V57, P78
[10]
PERRY WE, 1936, BRIT J RADIOL, V9, P648