The credit of introducing solid state nuclear track detectors (SSNTDs) as a powerful research tool in the early sixties goes to p.B. Price, r.L. Fleischer and r.M. Walker of the general electric company of the united states of america. Basically, SSNTDs are dielectric materials or solid insulators such as mica, glass, synthetic plastics, etc. Which record and permanently store the trajectory of fast moving charged particles in the form of submicroscopic trails of continuous damage called latent tracks. The present volume consists of one dozen papers on applications of SSNTDs in various fields; radon studies covering more than half of this volume.
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