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Radiochemical diagnostics at the National Ignition Facility.

John D Despotopulos¹, Dawn A Shaughnessy¹

¹Lawrence Livermore National Laboratory, Nuclear and Chemical Sciences Division, Physical and Life Sciences Directorate, Livermore, California 94551, USA.

The Review of Scientific Instruments

|February 12, 2024

Summary

Radiochemical techniques diagnose fusion performance at the National Ignition Facility (NIF). These methods also measure nuclear reaction cross sections and produce radioactive tracers for other applications.

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Area of Science:

Nuclear physics
Radiochemistry
Fusion energy diagnostics

Background:

The National Ignition Facility (NIF) has utilized radiochemical techniques since 2009.
Radiochemistry offers unique diagnostic capabilities for fusion experiments.

Purpose of the Study:

To review the current status of radiochemical diagnostics at the NIF.
To present experimental results and the state of debris collection radiochemistry.

Main Methods:

Solid debris collection radiochemistry.
Gaseous debris collection radiochemistry.

Main Results:

Radiochemical methods are effective for diagnosing NIF fusion shot performance.
These techniques enable measurement of nuclear reaction cross sections in novel regimes.
Radioactive tracer materials can be produced for diverse applications.

Conclusions:

Radiochemical diagnostics are a valuable tool at the NIF.
The methods discussed are crucial for advancing fusion energy research and applications.