Chinese Physics C > 1981, Vol. 5 > Issue(6): 754-760

MEASUREMENTS OF NUMBER OF RADIOACTIVE ATOMS AND HALF-LIFE (Ⅰ)

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Abstract：
The decay of ^99mTc source was used to verify experimentally that in the measurement of the number of atoms of a radioactive isotope in a sample at time t ₀, the error introduced through the inaccuracy of its decay constant (λ) can be reduced to a much smaller value by the careful selection of the time of measurement or measurements of its radioactivity at around one life time (1/λ) after t ₀and doing the calculation.
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[1] 冯锡璋、赵珍兰、汤乃勋,高能物理与核物理,4(1980),771.
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FENG XI-ZHANG, ZHAO ZHEN-LAN, LO SHI-HUA, ZHANG JING-LIE, GUO YING-HUAN, XU YUAN-BIAO, YANG RUI-YING, HUANG ZHONG-XIANG, ZHANG YUAN-JI, SU ZHI-XIN, LI ZUO-QIAN and MA GUO-HUI. MEASUREMENTS OF NUMBER OF RADIOACTIVE ATOMS AND HALF-LIFE (Ⅰ)[J]. Chinese Physics C, 1981, 5(6): 754-760.

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Received: 1980-12-29
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

MEASUREMENTS OF NUMBER OF RADIOACTIVE ATOMS AND HALF-LIFE (Ⅰ)

Received Date:1980-12-29
Accepted Date:1900-01-01
Available Online:1981-12-05

Abstract:The decay of^99mTc source was used to verify experimentally that in the measurement of the number of atoms of a radioactive isotope in a sample at time t₀, the error introduced through the inaccuracy of its decay constant (λ) can be reduced to a much smaller value by the careful selection of the time of measurement or measurements of its radioactivity at around one life time (1/λ) after t₀and doing the calculation.