Innovative Scintillating Optical Fibers For Detecting/Monitoring Gamma Radiation

Author

Ashwini Jayaprakash

Issuing Body

Mississippi State University

Advisor

Tao, Shiquan

Committee Member

Monts, David L.

Committee Member

Ma , Wenchao

Date of Degree

12-9-2006

Document Type

Graduate Thesis - Open Access

Major

Physics

Degree Name

Master of Science

College

College of Arts and Sciences

Department

Department of Physics and Astronomy

Abstract

A scintillating optical fiber sensor of this work consists of a scintillating optical fiber, connected to a photomultiplier tube (PMT) via a conventional silica optical fiber. When a gamma ray impinges on the scintillating optical fiber, photons are generated inside the fiber. The photons are trapped inside the fiber and guided through the PMT. The PMT output signal is acquired by a computer. Two types of scintillating optical fibers sensors were developed for gamma ray detection. The first one is a silica optical fiber doped with an inorganic scintillating agent. The second one is a liquid core waveguide optical fiber filled with a solution of a nanostructured core shell CdSe/ZnS quantum dot. Test results indicate that the scintillating optical fibers developed in this work are sensitive for detecting gamma radiation. These scintillating fibers offer more flexibility for applications in nuclear energy industry as well as in nuclear medical research.

URI

https://hdl.handle.net/11668/17277

Comments

scintillating fiber||gamma radiation||sol-gel||quantum dot||scintillator

Recommended Citation

Jayaprakash, Ashwini, "Innovative Scintillating Optical Fibers For Detecting/Monitoring Gamma Radiation" (2006). Theses and Dissertations. 2742.
https://scholarsjunction.msstate.edu/td/2742