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Related Experiment Video

Updated: Jun 12, 2026

Design to Implementation Study for Development and Patient Validation of Paper-Based Toehold Switch Diagnostics

Design to Implementation Study for Development and Patient Validation of Paper-Based Toehold Switch Diagnostics

Published on: June 17, 2022

Note: Printed circuit board based electrically triggered compact rail gap switch.

A K Saxena¹, T C Kaushik, M P Goswami

¹Applied Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India. a_saxena@barc.gov.in

The Review of Scientific Instruments

|June 3, 2010

Summary

A novel electrically triggered rail gap switch was developed using printed circuit board materials for compact applications. This switch achieved a 5 ns closing time and 1.6 km/s flyer velocity in an accelerator test.

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Area of Science:

Electrical Engineering
Materials Science
Physics

Background:

Compact, integrated switching solutions are crucial for high-speed pulsed power applications.
Printed circuit board (PCB) materials offer a cost-effective and adaptable substrate for electronic components.

Purpose of the Study:

To design and characterize an electrically triggered rail gap switch utilizing PCB materials.
To evaluate the switch's performance metrics, including inductance, jitter, and closing time.
To demonstrate the switch's application in an electrically exploding foil accelerator.

Main Methods:

Fabrication of a rail gap switch on a copper clad fiberglass sheet.
Measurement of switch inductance, jitter, and gap closing time at 95% of self-breakdown voltage.
Integration of the switch into an electrically exploding foil accelerator setup.

Main Results:

The designed switch exhibited an inductance of 6 nH and a gap closing time of 5 ns.
Jitter was measured to be approximately 4-10 ns for a 9.0 mm electrode separation.
The switch enabled an electrically exploding foil accelerator to achieve flyer velocities up to 1.6 km/s.

Conclusions:

A compact, PCB-based electrically triggered rail gap switch was successfully developed.
The switch demonstrates promising performance characteristics for pulsed power applications.
The demonstrated accelerator application highlights the potential of this integrated switching technology.