At Transpire, Inc., we develop software solutions for accurately and rapidly predicting the macroscopic behavior of radiation. Since 2002, our products have been used worldwide for a diverse range of industries where radiation effects play an integral role in product performance, safety, and reliability.

 Our team consists of internationally recognized experts in the research, development and application of radiation simulation software, and we have a proven track record in the development and commercialization of customer specific OEM solutions.

News & Events



We are pleased to announce that Varian Medical Systems has acquired certain assets of Transpire, Inc., including the Attila business.

Moving forward, the Varian acquisition will provide significant benefits to Attila customers. Read letter.


APRIL 2014

Los Alamos National Laboratory (LANL) Announces the first joint LANL-Transpire training course in Attla4MCNP, to be held October 27-29, 2014 at Los Alamos National Laboratory

This class is an introduction to Attila4MCNP and the new unstructured mesh capability in MCNP6. Users will learn how to set up MCNP6 analyses entirely through the Attila4MCNP graphical user interface, including CAD modeling and variance reduction. For more details, visit the LANL MCNP Website.


APRIL 2014

Transpire to hold workshop on Attila-MCNP6 Integration at RPSD 2014

Transpire will be holding a workshop at the 18th Topical Meeting of the Radiation Protection & Shielding Division of ANS (, to be held on September 14-18, 2014 in Knoxville, TN.