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Ukraine's State Agency of Management the Exclusion Zone said on Feb. 27 that the last record it had on a sensor near nuclear waste storage facilities, before it lost control over the monitoring system, showed that the absorbed dose of radiation was seven times higher than normal.

The rad, which quantifies absorbed dose, was superseded by the gray.

We report and discuss measurements of the absorbed dose and dose equivalent from galactic cosmic rays and solar energetic particles on the martian surface for ~300 days of observations during the current solar maximum.