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Updated: May 26, 2026

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics

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Proton and iron ion observations from a solid-state microdosimeter.

V L Pisacane¹, Q E Dolecek, A B Rosenfeld

¹vincepisacane@gmail.com

Radiation Protection Dosimetry

|December 14, 2011

Summary

This summary is machine-generated.

Researchers developed new solid-state microdosimeters for space radiation, offering an alternative to traditional gas-filled detectors. These devices, tested with iron and proton beams, show promise for accurate space exploration dosimetry.

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Area of Science:

Space science and exploration
Radiation detection and dosimetry
Solid-state physics

Background:

Tissue equivalent proportional counters (TEPCs) are standard for microdosimetry but have limitations.
Solid-state microdosimeters offer a potential alternative using microscopic sensitive volumes.
Space exploration requires robust and reliable radiation monitoring.

Purpose of the Study:

To develop and test personal solid-state microdosimeters for space exploration.
To compare the performance of solid-state microdosimeters with TEPCs and simulations.
To introduce an optical calibration technique for silicon solid-state microdosimeters.

Main Methods:

Development of two versions of personal solid-state microdosimeters.
Testing with iron and proton beams.
Comparison with tissue equivalent proportional counter (TEPC) measurements and Geant4 simulations.
Development and testing of an optical calibration technique for silicon microdosimeters.

Main Results:

Demonstrated functionality of two solid-state microdosimeter prototypes.
Validation of microdosimetric measurements against TEPC and Geant4 simulations for iron and proton beams.
Successful implementation of an optical technique for system testing and calibration, avoiding ionizing radiation sources.

Conclusions:

Solid-state microdosimeters are a viable alternative to TEPCs for space radiation monitoring.
The developed optical calibration method offers a significant advantage for system testing and calibration.
These advancements support improved radiation safety in space exploration.