Fiber optic microprobes with rare-earth-based phosphor tips for proton beam characterization

2016 ◽  
Author(s):  
Arash Darafsheh ◽  
Alireza Kassaee ◽  
Reza Taleei ◽  
Derek Dolney ◽  
Jarod C. Finlay
Keyword(s):  
Rare Earth ◽  
Proton Beam ◽  
Fiber Optic ◽  
Beam Characterization

SU-E-T-610: Phosphor-Based Fiber Optic Probes for Proton Beam Characterization

2015 ◽  
Vol 42 (6Part22) ◽  
pp. 3476-3476 ◽  
Author(s):  
A Darafsheh ◽  
A Soldner ◽  
H Liu ◽  
A Kassaee ◽  
T Zhu ◽  
...  
Keyword(s):  
Proton Beam ◽  
Fiber Optic ◽  
Fiber Optic Probes ◽  
Beam Characterization

Faraday Effect Devices, Optical Isolators

1998 ◽  
Vol 517 ◽  
Author(s):  
Donald K. Wilson
Keyword(s):  
Rare Earth ◽  
Magnetic Fields ◽  
Faraday Effect ◽  
Fiber Optic ◽  
High Magnetic Fields ◽  
Laser Applications ◽  
Industrial Use ◽  
Critical Components ◽  
Optical Isolators ◽  
Magneto Optic

AbstractAlthough discovered over 150 years ago, it was not until the 1970's that materials were developed that enabled magneto-optic (Faraday) effect devices of practical sizes. These developments are: magneto-optic materials with high Verdet constants, and the rare-earth magnet materials, capable of extremely high magnetic fields.The magneto-optic effect has enabled development of equipment used in diverse laser applications, from industrial use to fiber-optic telecommunications.The principle of operation of optical isolators and circulators is described herein, as well as descriptions of critical components in such equipment, such as the polarizers and the magnets.

Medipix2 as a tool for proton beam characterization

2009 ◽  
Vol 607 (1) ◽  
pp. 48-50 ◽  
Author(s):  
M.G. Bisogni ◽  
G.A.P. Cirrone ◽  
G. Cuttone ◽  
A. Del Guerra ◽  
P. Lojacono ◽  
...  
Keyword(s):  
Proton Beam ◽  
Beam Characterization

Measurement of Therapeutic Proton Beam Using a Fiber-Optic Cerenkov Radiation Sensor

2014 ◽  
Vol 1033-1034 ◽  
pp. 431-434
Author(s):  
Seon Guen Kim ◽  
Kyoung Won Jang ◽  
Sang Hun Shin ◽  
Seung Han Hong ◽  
Hyeok In Sim ◽  
...  
Keyword(s):  
Side Effects ◽  
Proton Beam ◽  
Fiber Optic ◽  
Tumor Therapy ◽  
High Energy ◽  
Exposure Dose ◽  
Cerenkov Radiation ◽  
High Energy Radiation ◽  
Energy Radiation ◽  
Radiation Sensor

Tumor therapy using the high-energy radiation has evolved over the decades as typical non-invasive treatment method due to its advantage compared with surgery. But, the radiotherapy can damage or destroy normal cells as well as destroying tumor cells and cause side effects of treatment. Even though most side effects are temporary, these effects can be extremely fatal for patient. Therefore, the exact measurement of the exposure dose of patient during radiation therapy is very important for patient safety. In the case of the conventional fiber-optic radiation sensor that consists of a scintillator for high-energy radiation dosimetry, additional correction is necessary due to the quenching effects of the scintillator. In this study, we measured the exposure dose of the high-energy proton beam without the scintillator by using the Cerenkov radiation that generated inside the plastic optical fiber. As a result of this study, we confirmed a Bragg peak of the proton beam without a scintillator. Also it was in good agreement with the result of the ionization chamber.

Fiber-optic thermometer based on thermal radiation from rare-earth doped SiO 2

2005 ◽  
Author(s):  
T. Katsumata ◽  
T. Iguchi ◽  
H. Aizawa ◽  
S. Komuro ◽  
T. Morikawa
Keyword(s):  
Rare Earth ◽  
Thermal Radiation ◽  
Fiber Optic ◽  
Rare Earth Doped
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