TKY-GH: YAYOI Nuclear Reactor of the University of Tokyo (Glory Hole)
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[1]: TKY-GH (YAYOI Glory hole)   Experimental system
Filter: No filter (Irradiation in a fuel core); , E(ave)=1.354 MeV, Gamma contamination (E=1.783 MeV)=19.0 % at Gy level
Materials: Human peripheral blood (whole blood irradiation)
Date: 1989.11.02.
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 1000 0 0 0 0 0 1 1 1 0 0 Dics 1000
D+R 1000
All 998 2
0.711 200 0 7 129 23 12 16 170 18 66 55 Dics 106 56 6 1 1
D+R 99 48 37 11 4 1
All 76 51 35 21 9 4 2 1 1
0.989 200 0 6 191 34 13 38 230 19 110 88 Dics 77 66 40 13 2 2
D+R 62 66 44 21 3 3 1
All 42 55 45 19 19 9 9 1 1
1.543 200 0 13 275 73 22 37 364 37 167 129 Dics 49 58 53 27 10 2 1
D+R 28 51 56 39 17 6 3
All 16 29 42 43 36 12 12 4 4 1 1
2.166 200 1 22 368 79 29 69 506 57 232 191 Dics 29 57 46 36 18 6 3 3 1 1
D+R 16 40 49 44 27 14 2 2 5 1
All 5 21 27 37 31 27 22 11 5 6 3 3 1 1
3.24 100 3 23 275 55 22 56 367 34 165 121 Dics 5 13 17 17 24 15 3 5 1
D+R 3 8 14 16 20 14 13 3 7 2
All 4 6 7 12 14 19 7 9 9 4 4 3 1 1
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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.
Sasaki, M. S., Nomura, T., Ejima, Y., Utsumi, H., Endo, S., Saito, I., Itoh, T. and Hoshi, M. (2008) Experimental derivation of relative biological effectiveness of A-bomb neutrons
in Hiroshima and Nagasaki and implication for risk assessment. Radiat. Res., 170:101-117.
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(1) TKY-GH:       E=1.285 MeV,      Fluence rate=3.901·1011 n/cm2/sec/kW,      Kerma=850.09 rad/sec/kW,      Kerma/n=2.176·10-9 rad