Question

a single count of 1000 is recordedin one minute by a Geiger counter and scaler using. a Cs-137 source. What is the expected range of values that another count should show with the same counting conditions

Answer 1

Given data

A single count of 1000 is recorded in one minute by a Geiger counter and scalar using a Cs-137

To find

the expected range of values that another count should show with the same counting conditions.

If the total count is N, the uncertainity in the count is , and the fractional uncertainity of the count and count rate is

  ^3%

^{For example if it is to 90% confidence then}

.