Electron-capture delayed fission properties of 242Es -: art. no. 044609

被引：22
|
作者：
Shaughnessy, DA
Adams, JL
Gregorich, KE
Lane, MR
Laue, CA
Lee, DM
McGrath, CA
Patin, JB
Stellis, DA
Sylwester, ER
Wilk, PA
Hoffman, DC
机构：
[1] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA
[2] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA
[3] Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA
来源：
PHYSICAL REVIEW C | 2000年 / 61卷 / 04期
关键词：
D O I：
10.1103/PhysRevC.61.044609
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
Electron-capture delayed fission of Es-242 produced via the U-233(N-14,5n)Es-242 reaction at 87 MeV (on target) was observed to decay with a half-life of 11+/-3 s, consistent with the reported alpha-decay half-life of Es-242 of 16(-4)(+6) s. The mass-yield distribution of the fission fragments is highly asymmetric. The average pre-neutron emission total kinetic energy of the fragments was measured to be 183+/-18 MeV. Based on the ratio of the measured number of fission events to the measured number of cu decays from the electron-capture daughter Cf-242 (100% alpha branch), the probability of delayed fission was determined to be 0.006+/-0.002. This value for the delayed fission probability fits the experimental trend of increasing delayed fission probability with increasing Q value for electron capture.
引用
收藏
页数：6
相关论文
共 50 条
  • [1] Electron-capture delayed fission properties of 244Es -: art. no. 024612
    Shaughnessy, DA
    Gregorich, KE
    Adams, JL
    Lane, MR
    Laue, CA
    Lee, DM
    McGrath, CA
    Ninov, V
    Patin, JB
    Strellis, DA
    Sylwester, ER
    Wilk, PA
    Hoffman, DC
    PHYSICAL REVIEW C, 2002, 65 (02): : 7
  • [2] Electron-capture delayed fission in 242Es.
    Shaughnessy, DA
    Adams, JL
    Gregorich, KE
    Lane, MR
    Laue, CA
    Lee, DM
    McGrath, CA
    Patin, JB
    Strellis, DA
    Sylwester, ER
    Wilk, PA
    Hoffman, DC
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1999, 217 : U60 - U60
  • [3] Electron-capture delayed fission probabilities of 248Es and 246Es -: art. no. 037603
    Shaughnessy, DA
    Gregorich, KE
    Lane, MR
    Laue, CA
    Lee, DM
    McGrath, CA
    Strellis, DA
    Sylwester, ER
    Wilk, PA
    Hoffman, DC
    PHYSICAL REVIEW C, 2001, 63 (03): : 376031 - 376034
  • [4] Electron-capture delayed fission in Es-246.
    Shaughnessy, DA
    Gregorich, KE
    Hendricks, MB
    Lane, MR
    Lee, DM
    McGrath, CA
    Strellis, DA
    Sylwester, ER
    Wilk, PA
    Hoffman, DC
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1997, 213 : 36 - NUCL
  • [5] ELECTRON-CAPTURE DELAYED FISSION IN THE ACTINIDES
    KREEK, SA
    HALL, HL
    GREGORICH, KE
    CZERWINSKI, KR
    KADKHODAYAN, B
    HANNINK, NJ
    KACHER, CD
    HAMILTON, TM
    NEU, MP
    LANE, M
    GAYLORD, RF
    TURLER, A
    HENDERSON, RA
    LEYBA, JD
    LEE, DM
    NURMIA, MJ
    HOFFMAN, DC
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1992, 203 : 60 - NUCL
  • [6] ELECTRON-CAPTURE DELAYED FISSION PROPERTIES OF NP-228
    KREEK, SA
    HALL, HL
    GREGORICH, KE
    HENDERSON, RA
    LEYBA, JD
    CZERWINSKI, KR
    KADKHODAYAN, B
    NEU, MP
    KACHER, CD
    HAMILTON, TM
    LANE, MR
    SYLWESTER, ER
    TURLER, A
    LEE, DM
    NURMIA, MJ
    HOFFMAN, DC
    PHYSICAL REVIEW C, 1994, 50 (05): : 2288 - 2296
  • [7] ELECTRON-CAPTURE DELAYED FISSION PROPERTIES OF THE NEW ISOTOPE BK-238
    KREEK, SA
    HALL, HL
    GREGORICH, KE
    HENDERSON, RA
    LEYBA, JD
    CZERWINSKI, KR
    KADKHODAYAN, B
    NEU, MP
    KACHER, CD
    HAMILTON, TM
    LANE, MR
    SYLWESTER, ER
    TURLER, A
    LEE, DM
    NURMIA, MJ
    HOFFMAN, DC
    PHYSICAL REVIEW C, 1994, 49 (04): : 1859 - 1866
  • [8] Electron-capture delayed fission properties of neutron-deficient einsteinium nuclei.
    Shaugnessy, DA
    Gregorich, KE
    Adams, J
    Laue, CA
    Lane, M
    Lee, D
    McGrath, CA
    Patin, JB
    Strellis, DA
    Sylwester, ER
    Wilk, PA
    Hoffman, DC
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2000, 220 : U14 - U15
  • [9] Towards saturation of the electron-capture delayed fission probability: The new isotopes 240Es and 236Bk
    Konki, J.
    Khuyagbaatar, J.
    Uusitalo, J.
    Greenlees, T.
    Auranen, K.
    Badran, H.
    Block, M.
    Briselet, R.
    Cox, D. M.
    Dasgupta, M.
    Di Nitto, A.
    Duellmann, Ch E.
    Grahn, T.
    Hauschild, K.
    Herzan, A.
    Herzberg, R. -D.
    Hessberger, F. P.
    Hinde, D. J.
    Julin, R.
    Juutinen, S.
    Jaeger, E.
    Kindler, B.
    Krier, J.
    Leino, M.
    Lommel, B.
    Lopez-Martens, A.
    Luong, D. H.
    Mallaburn, M.
    Nishio, K.
    Pakarinen, J.
    Papadakis, P.
    Partanen, J.
    Peura, P.
    Rahkila, P.
    Rezynkina, K.
    Ruotsalainen, P.
    Sandzelius, M.
    Saren, J.
    Scholey, C.
    Sorri, J.
    Stolze, S.
    Sulignano, B.
    Theisen, Ch.
    Ward, A.
    Yakushev, A.
    Yakusheva, V.
    PHYSICS LETTERS B, 2017, 764 : 265 - 270
  • [10] Search for Electron-Capture Delayed Fission in the New Isotope 244Md
    Khuyagbaatar, J.
    Albers, H. M.
    Block, M.
    Brand, H.
    Cantemir, R. A.
    Di Nitto, A.
    Duellmann, Ch E.
    Goetz, M.
    Goetz, S.
    Hessberger, F. P.
    Jaeger, E.
    Kindler, B.
    Kratz, J., V
    Krier, J.
    Kurz, N.
    Lommel, B.
    Lens, L.
    Mistry, A.
    Schausten, B.
    Uusitalo, J.
    Yakushev, A.
    PHYSICAL REVIEW LETTERS, 2020, 125 (14)
12345