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Table 1 Estimates of the threshold absorbed dose for tissue effects in adult human gonads [35]

From: Gonad shielding in pelvic radiography: modern optimised X-ray systems might allow its discontinuation

Tissue

Induction of sterility

Total dose in single exposure (Gy)

Total dose in protracted exposure (Gy)

Annual dose rate in protracted exposure (Gy/year)

Testes

Temporary

0.15

0.4

 

Permanent

3.5–6.0

2.0

Ovaries

Permanent

2.5–6.0

6.0

> 0.2

  1. Note: hereditary effects are assumed to be induced with no dose threshold