UTR-KINKI 1 W Reactor, Atomic Energy Institute, Kinki University (4)
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Uranium fission neutrons (UTR-PE), E(ave)=0.100 MeV
  Experimental system
UTR-KINKI (1W reactor), Atomic Energy Institute, Kinki University
UTR-PE: (5cm thick polyethylene filter), Gamma contamination=72.2 %
Materials: Human peripheral blood lymphocytes (whole blood irradiation)
Date: 1989.06.15.
Dose No. of Aberrations Distribution of cells with indicated number of aberrations
(Gy) cells Tet Tri Dic Rc Ra aM F del S del Aber 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
0 500 0 0 1 0 0 1 0 0 0 0 Dics 499 1
D+R 499 1
All 498 2
0.1754 500 0 0 17 2 1 4 18 2 12 9 Dics 487 9 4
D+R 484 12 4
All 473 20 6 1
0.3096 400 0 2 40 9 3 4 50 5 24 17 Dics 364 30 5 1
D+R 358 32 7 2 1
All 341 43 11 3 2
0.4384 400 0 1 35 6 0 5 46 7 12 8 Dics 368 29 2 1
D+R 364 31 4 1
All 354 34 10 1 1
0.7014 400 0 1 75 13 4 16 88 9 34 23 Dics 333 58 8 1
D+R 321 67 10 1 1
All 303 61 30 3 3
0.8766 400 1 2 121 29 6 18 163 18 49 37 Dics 303 74 16 6 1
D+R 277 93 21 8 1
All 247 95 39 15 3 1
1.315 300 0 5 137 22 13 17 169 16 51 37 Dics 185 86 27 1 1
D+R 166 95 32 5 2
All 139 96 44 18 1 2
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Ref: Sasaki, M. S., Saigusa, S., Kimura, I., Kobayashi, T., Ikushima, T. and Kobayashi, K. (1992) Biological effectiveness of fission neutrons: Energy dependency and its implication
for the risk assessment. In, Proc. Int. Conf. on Radiation Effects and Protection. March 18-20, 1992, Mito, Ibaraki.
Sasaki, M. S., Endo, S., Ejima, Y., Saito, I., Okamura, K., Oka, Y. and Hoshi, M. (2006) Effective dose fo A-bomb radiation in Hirohima and Nagasaki as assessed by chromosomal
effectiveness of spectrum energy photons and neutrons. Radiat. Environ. Biophys., 45:79-91.