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21 November 2009

Answer to Question #3896 Submitted to "Ask the Experts"

Category: Doses and Dose Calculations — External dose calculations

The following question was answered by an expert in the appropriate field:

Q

I'm developing some radioactive material safety data sheets and can't locate the following numbers to show the importance of distance as a method of protection. Once I have a number to start with, I can use the inverse square law to show examples in a table as other data sheets show.

Question 1: P-33 Do you know how to calculate what the beta dose rate would be 1 cm from an unshielded 1.0 mCi point source in rad/hr?

Question 2: Rb-86 Do you know how to calculate what the gamma and beta dose rates would be 1 cm from an unshielded 1.0 mCi point source in rad/hr?

A
Download the following Portable Document Format file to complete the answer to your question: Q3896.pdf
Answer posted on 20 August 2004. The information and material posted on this Web site is intended as general reference information only. Specific facts and circumstances may alter the concepts and applications of materials and information described herein. The information provided is not a substitute for professional advice and should not be relied upon in the absence of such professional advice specific to whatever facts and circumstances are presented in any given situation. Answers are correct at the time they are posted on the Web site. Be advised that over time, some requirements could change, new data could be made available, or Internet links could change. For answers that have been posted for several months or longer, please check the current status of the posted information prior to using the responses for specific applications.
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