What's New?
.	NRC Chairman Resigns
.	NAS Report on Future Workforce Needs
.	Hodes Award Nominations Request
.	Radiation Risks and Protective Actions
.	June Journal
.	IAEA Conference - Rad Protection in Medicine
.	HPS Mentoring Program Update
.	New Low-Level Waste Site Operational
.	May Newsletter
.	America's Nuclear Future Report

Upcoming Events
.	Canadian Radiation Protection Association Annual Meeting 27-30 May 2012 Halifax, Nova Scotia
.	ACS Undergrad Summer Schools 10 June - 20 July 2012
.	NRC Meeting Webcasts May-June 2012
.	57th Annual HPS Meeting 22-26 July 2012 Sacramento, CA
.	37th Annual Conference of the Australasian Radiation Protection Society (ARPS) 14-17 Oct 2012 Sydney Convention & Exhibition Centre, Darling Harbour
.	International Conference on Radiation Shielding 2-7 Nov 2012 Nara, Japan

23 May 2012

Buildup factor

The factor by which the total value of the quantity being assessed at the point of interest exceeds the value associated with only primary radiation. The total value includes secondary radiations especially scattered radiation. The buildup factor is most commonly used for ionizing photons and may apply to various quantities—e.g., dose kerma, fluence.