IMUG/MACCS Workshop: August 31 - September 3, 2020
- Hosted by: U.S. Nuclear Regulatory Commission (NRC) and Sandia National Laboratories
- Location: Virtual Conference (WebEx)
- Dates: Aug. 31st – Sept. 2nd (IMUG); Sept. 3rd (MACCS User Workshop)
Please join us at the 2020 International MACCS User Group (IMUG) meeting and MACCS User Workshop.
IMUG is held annually as a forum for the exchange of information and research experience among
users of the MACCS code and other nuclear power accident consequence codes. The MACCS User
Workshop is a training course for the MACCS computer code that is intended to provide demonstrations
to users on the model’s capabilities.
Because of the COVID-19 pandemic, we have rescheduled IMUG and the MACCS Workshop as virtual meetings
during the week of August 31, 2020. To allow participation from around the world, a live session
will begin each day at 8:00 AM US Eastern Time (UTC-4), with the potential of a midday session
depending on the number of presentations. Each session will be about 3 to 3.5 hours, after which we
will provide a video recording of the session. In order to provide video recordings after each session,
we will request your consent to record your presentation.
Your participation is crucial to make the IMUG a success. If you are interested in giving a
presentation at IMUG, please submit your proposed topic by July 31st to MACCScodes@nrc.gov and
NBixler@sandia.gov for consideration. Final presentations will be due August 17th and we will be
conducting a dry run prior to the IMUG. The presentations will cover a wide range of topics related
to consequence analysis modelling and applications, as well as various case studies from the MACCS
user community. However, topics are not limited to just the MACCS code, as approaches using other
consequence codes or methods are encouraged.
The MACCS Workshop will focus on new features of recently released MACCS v4.0, which includes the
option to couple consequence analyses with the HYSPLIT atmospheric transport and dispersion model,
increased animation capabilities, and an optional economic model to calculate GDP losses in place
of expected rate of return on property investments. We will provide participants a recorded
demonstration of these advanced topics for viewing prior to the workshop. During the live workshop,
we will have a short review of these demonstrations before opening the session for discussion and
questions. Workshop participants are encouraged to install MACCS v.4.0 as soon as possible so that
it may be accessed prior to the workshop.
This year, registration for both IMUG and the MACCS Workshop is free.
To register for IMUG and the MACCS Workshop, please go to