Physical meaning of kinetics parameter “lifetime” used in the new multi-point reactor kinetics equations derived using Green's function

Hayashi, 1992, B29 Hayashi, 1994, G72 Henry, 1983, Adv. Nucl. Sci. Technol., 15, 55, 10.1007/978-1-4613-3757-7_2 Henry, 1986 Kobayashi, 1991, Ann. Nucl. Energy, 18, 13, 10.1016/0306-4549(91)90032-S Kobayashi, 1991, J. Nucl. Sci. Technol., 28, 389, 10.3327/jnst.28.389 Kobayashi, 1992, J. Nucl. Sci. Technol., 29, 110, 10.3327/jnst.29.110 Lamarsh, 1966 Lewins, 1960, Nucl. Sci. Eng., 7, 122, 10.13182/NSE60-A29080 Lewins, 1978 Lewins, 1981, Nucl. Sci. Eng., 78, 105, 10.13182/NSE81-A19617 Marotta, 1981, Nucl. Sci. Eng., 78, 106, 10.13182/NSE81-A19618 Nelson, 1971, Nucl. Sci. Eng., 43, 154, 10.13182/NSE71-A21263