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ICRP 118: Statement on Tissue Reactions / Early and Late Effects of Radiation in Normal Tissues and Organs Threshold Doses for Tissue Reactions in a Radiation Protection Context
http://www.icrp.org/publication.asp?id=ICRP Publication 118
Seiichi Ushikubo
@sushikubo
ICRP 118 Fig. 1.1. 線量と「組織反応」の頻度・感受性の関係．あくまでも「組織反応」の話で、確率的影響(発がん)の閾値の話ではない。ICRP 103 にも同じ図があるのだけれど、見やすかったので。 http://t.co/tvrpp2sb
2012-08-30 10:52:194. THRESHOLD DOSES IN RELATION TO RADIOSENSITIVITY OF ORGANS AND TISSUES.
4.13. Conclusions
Seiichi Ushikubo
@sushikubo
ICRP 118: 4.13 (714) As a general conclusion, ICRP judges, on the basis of existing evidence, ... (cont)
2012-09-02 17:51:29
Seiichi Ushikubo
@sushikubo
ICRP 118: 4.13 (714) cont. ... that acute doses up to around 0.10 Gy produce no functional impairment of tissues.
2012-09-02 17:52:09(0.1 Gy の急性被ばくでは組織の機能的損傷は起こらない)
Seiichi Ushikubo
@sushikubo
ICRP 118: 4.13 (714) Hence for most applications of ICRP recommendations in occupational or public situations, ...
2012-09-02 18:29:43
Seiichi Ushikubo
@sushikubo
ICRP 118: (714) ... the stochastic risks of induced cancer and hereditary effects remain the principal risks to consider.
2012-09-02 18:30:21(職業被ばくも公衆被ばくも、発がんと遺伝的影響を引き起こす確率的リスクが、考慮すべき主たるリスクである)
Seiichi Ushikubo
@sushikubo
@myen ICRP 118: Table 4.4 Estimates of threshold doses. (組織反応の閾値の推定) http://t.co/LHTUuy4Z
2012-09-02 17:37:49
拡大
Seiichi Ushikubo
@sushikubo
@myen ICRP 118: Table 4.4 Estimates of threshold doses. (組織反応の閾値の推定) その2 http://t.co/DQxs8nIH
2012-09-02 17:38:21
拡大
Seiichi Ushikubo
@sushikubo
@myen ICRP 118 PART 2: Abstract " ‘practical’ threshold doses for tissue injury defined at the level of 1% incidence"
2012-08-29 18:44:39
Seiichi Ushikubo
@sushikubo
@myen ICRP 118 PART 2: Abstract "Most tissues show a sparing effect of dose fractionation, ..."
2012-08-29 18:46:30
Seiichi Ushikubo
@sushikubo
@myen ICRP 118 PATR2: ".. for reactions manifesting very late after low total doses, particularly for cataracts and circulatory disease, .."
2012-08-29 18:48:52
Seiichi Ushikubo
@sushikubo
@myen ICRP 118 PART2: ".. it appears that the rate of dose delivery does not modify the low incidence."
2012-08-29 18:49:28
Seiichi Ushikubo
@sushikubo
@myen ICRP 118 PART2: ".. the injury in these cases and at these low dose levels is caused by single-hit irreparable-type events."
2012-08-29 18:50:42
Seiichi Ushikubo
@sushikubo
ICRP 118 PART2: SUMMARY (h) ".. a threshold acute dose of approximately 0.5 Gy for both cardiovascular disease and cerebrovascular disease."
2012-08-29 18:55:17
Seiichi Ushikubo
@sushikubo
ICRP 118 PART2: SUMMARY(h) ".. 0.5 Gy may lead to ... 1% of exposed individuals developing the disease in question >10 years after exposure"
2012-08-29 18:57:38
Seiichi Ushikubo
@sushikubo
@myen ICRP 118: 4.13. (711) First, .. threshold dose for radiation-induced eye cataracts .. 0.5 Gy for acute and fractionated/chronic ...
2012-09-02 17:42:25
Seiichi Ushikubo
@sushikubo
@myen ICRP 118: 4.13 (711) Second, circulatory disease .. threshold dose of around 0.5 Gy .. for acute and fractionated/protracted exposures
2012-09-02 17:44:30
Seiichi Ushikubo
@sushikubo
@myen ICRP 118: 4.13 (712) Third, the threshold dose values for chronic exposures depend on the exposure duration and the follow-up period
2012-09-02 17:46:10
Seiichi Ushikubo
@sushikubo
@myen ICRP 118: 4.13 (712) The values quoted for both the lens and the circulatory system assume ... (cont)
2012-09-02 17:47:50