SSPM-based optical fiber radiation dosimeter Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/h128nh64t

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • Current state-of-the-art environmental, clinical, and in-vivo radiation sensing systems utilizing various inorganic and tissue-equivalent plastic scintillators are not user friendly, suffer from electron-beam-generated noise, and are difficult to deploy successfully for real-time dosimetry. A robust, real-time detection system using different scintillating materials coupled to solid-state detectors by optical fibers is developed. This system enables radiation monitors/clinicians to conduct meaningful real-time measurements using different inorganic scintillators or organic, tissue-equivalent plastic scintillators in harsh clinical and environmental environments. Recent solid state photomultiplier (SSPM) technology has matured, reaching a performance level that is suitable for replacement of the ubiquitous photomultiplier tube in selected applications for environmental radiation monitoring, clinical dosimetry, and medical imaging purposes. The objective of this work is laboratory and clinical testing of the Hamamatsu MPPC (S10362-11-050C), Photonique SSPM (0810G1), and Voxtel SiPM (SQBF-EKAA/SQBF-EIOA) SSPMs coupled to different inorganic scintillator crystals (Prelude 420, BGO), inorganic doped glass scintillator material SiO₂: Cu²⁺, and organic BCF-12 plastic scintillating fibers, used as detector elements. Both polymer optical fibers (POFs) and glass optical fibers (GOFs) are used as signal conduits for laboratory and clinical testing. Further, reduction of electron-beam-generated Cerenkov light in optical fibers is facilitated by the inclusion of metalized air-core capillary tubing between the BCF-12 plastic scintillating fiber and the POF. Dose linearity, percent depth dose, and angular measurements for 6 MV/18 MV photon beams and 9 MeV electron beams are compared using the Hamamatsu MPPC with-and without the use of the metalized air-core capillary tubing for BCF-12 plastic scintillating fiber. These same measurements are repeated for SiO₂: Cu²⁺ scintillator material without air-core capillary tubing.
Resource Type
Date Available
Date Copyright
Date Issued
Degree Level
Degree Name
Degree Field
Degree Grantor
Commencement Year
Advisor
Committee Member
Academic Affiliation
Non-Academic Affiliation
Keyword
Subject
Rights Statement
Peer Reviewed
Language
Replaces
Additional Information
  • description.provenance : Made available in DSpace on 2012-04-17T15:42:54Z (GMT). No. of bitstreams: 1 KonnoffDanielC2012.pdf: 3996982 bytes, checksum: 401c10caae94d3a0bedcadf414ebb6a3 (MD5) Previous issue date: 2012-03-23
  • description.provenance : Submitted by Daniel Konnoff (konnoffd) on 2012-03-29T04:39:06Z No. of bitstreams: 1 KonnoffDanielC2012.pdf: 3996982 bytes, checksum: 401c10caae94d3a0bedcadf414ebb6a3 (MD5)
  • description.provenance : Approved for entry into archive by Laura Wilson(laura.wilson@oregonstate.edu) on 2012-04-17T15:42:54Z (GMT) No. of bitstreams: 1 KonnoffDanielC2012.pdf: 3996982 bytes, checksum: 401c10caae94d3a0bedcadf414ebb6a3 (MD5)
  • description.provenance : Approved for entry into archive by Julie Kurtz(julie.kurtz@oregonstate.edu) on 2012-04-16T21:59:00Z (GMT) No. of bitstreams: 1 KonnoffDanielC2012.pdf: 3996982 bytes, checksum: 401c10caae94d3a0bedcadf414ebb6a3 (MD5)

Relationships

Parents:

This work has no parents.

Last modified

Downloadable Content

Download PDF

Items