2019 ISOE ATC Benchmarking Exchange for Radiation Protection, November 2019(Yawatahama, Japan)
2018 ISOE International ALARA Symposium, October 2018 (Kyoto, Japan)
2017 ISOE ATC Benchmarking Exchange for Radiation Protection, October 2017(Maizuru, Japan)
2016 ISOE Asian ALARA Symposium, September 2016 (Iwaki, Japan)
2015 ISOE Asian ALARA Symposium, September 2015 (Tokyo, Japan)
2014 ISOE Asian ALARA Symposium, September 2014 (Gyeongju, Korea)
2013 ISOE International ALARA Symposium, August 2013 (Tokyo, Japan)
2012 ISOE Asian ALARA Symposium, September 2012 (Tokyo, Japan)
2010 ISOE Asian ALARA Symposium, August 2010 (Gyonjui, Korea)
2009 ISOE Asian ALARA Symposium, September 2009 (Aomori, Japan)
2008 ISOE International ALARA Symposium, November 2008 (Tsuruga, Japan)
2007 ISOE Asian ALARA Symposium, September 2007 (Seoul, Korea)
2006 ISOE Asian ALARA Symposium, October 2006 (Yuzawa, Japan)
2005 ISOE-ATC Workshop, November 2005 (Hamaoka, Japan)

2018 ISOE European ALARA Symposium, Uppsala (Sweden), 26-28 June 2018
2016 ISOE International ALARA Symposium, Brussels (Belgium), 1-3 June 2016
2014 ISOE European ALARA Symposium, Bern (Switzerland), 9-11 April 2014
2012 ISOE European ALARA Symposium, Prague (Czech Republic), 20-22 June 2012
2010 ISOE International ALARA Symposium, Cambridge (United Kingdom), 17-19 November 2010
2008 ISOE European ALARA Symposium, Turku (Finland), 25-27 June 2008
2006 ISOE International ALARA Symposium, Essen (Germany), 15-17 March 2006
2004 ISOE International ALARA Symposium, Lyon (France), 24-26 March 2004
2002 ISOE International ALARA Symposium, Portoroz (Slovenia), 17-19 April 2002
2000 ISOE International ALARA Symposium, Tarragona (Spain), 5-7 April 2000
1998 ISOE International ALARA Symposium, Malmo (Sweden), 16-18 September 1998

2020 ISOE North-American ALARA Symposium, Key West (USA), 6-8 January 2020
2019 ISOE North-American ALARA Symposium, Key West (USA), 28-30 January 2019
2018 ISOE North-American ALARA Symposium, Fort Lauderdale (USA), 8-10 January 2018
2017 ISOE North-American ALARA Symposium, Fort Lauderdale (USA), 9-11 January 2017
2016 ISOE North-American ALARA Symposium, Fort Lauderdale (USA), 11-13 January 2016
2015 ISOE North-American ALARA Symposium, Fort Lauderdale (USA), 12-14 January 2015
2014 ISOE North-American ALARA Symposium, Fort Lauderdale (USA), 13-15 January 2014
2013 ISOE North-American ALARA Symposium, Fort Lauderdale (USA), 7-9 January 2013
2012 ISOE International ALARA Symposium, Fort Lauderdale (USA), 8-11 January 2012
2011 ISOE North-American ALARA Symposium, Fort Lauderdale (USA), 10-12 January 2011
2010 ISOE North-American ALARA Symposium, Fort Lauderdale (USA), 11-13 January 2010
2009 ISOE North-American ALARA Symposium, Fort Lauderdale (USA), 12-14 January 2009
2007 ISOE International ALARA Symposium, Fort Lauderdale (USA), 15-17 January 2007
2005 ISOE International ALARA Symposium, Fort Lauderdale (USA), 9-12 January 2005
2003 ISOE International ALARA Symposium, Orlando (USA), 12-15 January 2003
2001 ISOE International ALARA Symposium, Anaheim (USA), 3-7 February 2001
1999 ISOE International ALARA Symposium, Orlando (USA), 31 January-3 February 1999
1997 ISOE International ALARA Symposium, Orlando (USA), March 1997

2019 ISOE International ALARA Symposium, Beijing (China), 22-23 October 2019
2015 ISOE International ALARA Symposium, Rio de Janeiro (Brazil), 26-27 May 2015
2009 ISOE International ALARA Symposium, Vienna (Austria), 13-15 October 2009