A GM detector with a mica window is to be used for measurement of 14C activity. What should the thickness of the window be if it is required that at least 90% of the 14C betas enter the detector

Your best friend told you that last week scientists disco y that las vegas is responsible for abrupt climate changes. which do you think is best way to research that recent discovery? an encyclopedia usgs internet site a book in the library your best friend’s parents for your ! ❤️