Equation of State: Manhattan Project Developments and Beyond

TL;DR

This paper reviews the historical and ongoing advancements in the development of equations of state, crucial for understanding material behavior under extreme conditions, originating from the Manhattan Project era to present.

Contribution

It provides a comprehensive overview of the progress in equation of state research at Los Alamos from the Manhattan Project to current developments.

Findings

Significant advancements in equation of state understanding since the Manhattan Project.

Enhanced predictive capabilities for material behavior under extreme conditions.

Historical perspective on technological progress in nuclear and high-energy physics.

Abstract

The hydrodynamic response of materials under extreme conditions of pressure, temperature and strain is dependent on the equation of state of the matter in all its states of existence. The Trinity plutonium implosion device development required the Los Alamos research community to advance the understanding of equations of state further and faster than ever before. The unpredicted high yield from the Trinity fission device explosion and the push to design the "Super" thermonuclear device initiated 75 years of unprecedented research and technological progress in equation of state development. This article describes the progress made on equation of state development during and since the Manhattan Project at Los Alamos.