共 6 条
[1]
KAYE JH, 1963, THESIS CARNEGIE I TE
[2]
LEGER C, 1967, RADIOACTIVE DATING M, P629
[4]
AN EXTREMELEY LOW-LEVEL GAMMA-RAY SPECTROMETER
[J].
NUCLEAR INSTRUMENTS & METHODS,
1967, 56 (02)
:319-&
[5]
HIGH-EFFICIENT 4PI-PROPORTIONAL LOW LEVEL COUNTER FOR X-RAY SOURCES
[J].
NUCLEAR INSTRUMENTS & METHODS,
1968, 66 (02)
:193-&
[6]
Watt D.E., 1964, HIGH SENSITIVITY COU