What's New?
.	April Newsletter
.	April Journal
	Radiological and Nuclear Preparedness - CDC Public Health Grand Rounds Session

Upcoming Events
.	2010 Summer Professional Development School Internal Dosimetry 23 - 26 June 2010 Idaho State University, Pocatello, Idaho
.	International Conference on Radiation Protection in Medicine 1-3 September 2010 Varna, Bulgaria
.	2010 Meeting of the Air Monitoring Users Group 4-7 May 2010 Las Vegas, NV

18 March 2010

Answer to Question #3592 Submitted to "Ask the Experts"

Category: Medical and Dental Equipment/Shielding — Shielding

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

I have some questions regarding the shielding of a nuclear medicine hot laboratory and an examination room. How much lead or concrete shielding thickness is required for these rooms? Allowing for extra safety margins, can we use 4 mm lead thickness or will it create another problem? To my knowledge a thickness of 1-2 mm of lead will be enough. Is there a way to calculate the required shielding exactly? What are the references?

Download the following Portable Document Format file to complete the answer to your question: q3592.pdf

Answer posted on 26 May 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.