http://www.epa.gov/radiation/underst...th_effects.htm
"Short-term, high-level exposure is referred to as 'acute' exposure."

the total mission dose from both sources

For the whole multi-month mission to Mars, not a short term exposure.

http://spacebombardment.blogspot.com...your-dose.html

About the same dose as seven years of ISS exposure or three years of
Mars surface exposure, toasty, but not deadly.