GLIDER-A pulsed-current generator for laboratory astrophysics x-ray absorption experiments.

Area of Science:

• Plasma Physics
• Pulsed Power Systems
• Astrophysics

Background:

• Interest in affordable, low-maintenance pulsed-current generators (≤2 MA) for various applications.
• Need for compact and reliable soft X-ray sources for laboratory astrophysics experiments.

Purpose of the Study:

• To develop and present the GLIDER, a compact and modular pulsed-current generator.
• To utilize the GLIDER as a soft X-ray source for laboratory astrophysics absorption experiments.
• To demonstrate its capability in driving a gas-puff z-pinch load.

Main Methods:

• Development of a compact generator (GLIDER) using multilayered oil-soaked insulators and post-hole convolutes.
• Integration of interchangeable tiles in the stripline for ease of construction and maintenance.
• Utilizing six triggering units for current pulse shaping and testing up to ±60 kV (34 kJ).

Main Results:

• The GLIDER produced 2 MA in a 450 ns rise time on a 5 nH load.
• Demonstrated soft X-ray generation (0.1-1 keV) suitable for absorption experiments.
• Obtained grating spectra of K-shell absorption for neutral O and N, validating the experimental concept.

Conclusions:

• The GLIDER is a reliable and compact pulsed-current generator for laboratory astrophysics.
• The system successfully generated soft X-rays and enabled column density and ionization measurements.
• The design facilitates affordability and low maintenance, meeting key field requirements.