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Showing 1 to 20 of 71 for “"Dosimeter"”.

  1. A Bf3 Fast Neutron Dosimeter (Long Counter)

    Leyland, Walter A.Virginia Tech1960

    A BF3 fast neutron dosimeter or long counter is constructed and calibrated for use with the Cockcroft-Walton accelerator and UTR-IO reactor at Virginia Polytechnic Institute. The counter consists of a paraffin cylinder 8 inches in diameter, having a BF3 proportional detector on the axis and a set …

    vt Repository record

  2. Spectral analysis of integrated F-center feedback dosimeter

    Schumaker, Daniel(Daniel C.)Massachusetts Institute of Technology2018

    … an in-vivo, real-time, fault-tolerant integral dosimeter. Proposed in this thesis is a conceptual dosimeter to meet such requirements, relying on the radiation-stimulated production of F-centers in alkali halide salts. F-centers are optically active vacancies in the cation-anion lattice filled …

    mit Repository record

  3. Measurement of The Electron Return Effect Using Presage Dosimeter

    Choi, Gye Won2016

    … of MRgRT than two-dimensional dosimetry. The 3D dosimeters can also be used to estimate the volumetric dose distribution in MRgRT treatment of heterogeneous treatment sites (e.g., lung), around simple structures such as the trachea and the esophagus, and in MR-guided brachytherapy.</p> <p>In this …

    uthsc Repository record

  4. An Implantable Mosfet Dosimeter Modified to Act As A Fiducial Marker

    Dick, Joseph S2010

    … has been developed, an implantable MOSFET dosimeter. This dosimeter is implanted within the patient and records the dose received. Since the dosimeter is implanted in the patient, it could serve a dual function as a fiducial marker for image guided radiation therapy (IGRT) treatment if it …

    uthsc Repository record

  5. Low power gamma-ray FG-MOSFET dosimeter in 0.13 um CMOS technology

    Yadegari, BehzadCarleton University2012

    carleton Repository record

  6. A Comparison of Dosimeter Response to Gamma Spectra at Clinton Power Station

    Withrow, John F.2017

    Made available in DSpace on 2017-07-06T18:59:29Z (GMT). No. of bitstreams: 3 Withrow_John_F_MS.pdf: 57583936 bytes, checksum: f776e65e20019309ad3cd94120e6590f (MD5) Withrow_John_F_MS_ABS.pdf: 676263 bytes, checksum: 76546f11c79e855ced48fc6700a01f30 (MD5) license.txt: 4813 bytes, checksum: …

    uiuc Repository record

  7. Optimization of the MgS:Eu:Sm phosphor for potential use as an optically stimulated personnel dosimeter

    Hill, Michael DavidVirginia Polytechnic Institute and State University1988

    … phosphor for laser stimulated personnel dosimeters. Optically stimulated luminescence (OSL) dosimeters are advantageous in that they provide a faster, isothermal dose measurement than conventional thermoluminescent dosimeters. The effects of activator concentration and chemical …

    vt Repository record

  8. Alpha-Al 2 O 3 :C als Dosimeter zur Bestimmung der Dosisleistung bei der Lumineszenzdatierung

    Kalchgruber, ReginaUniversität Heidelberg

    … inhomogenen Probenumfeldern werden zusätzlich Dosimeter am Ort der Probenentnahme eingesetzt; um die bis jetzt notwendige Expositionsdauer von einem Jahr stark zu verkürzen, wurde das hochsensitive Dosimetermaterial alpha-Al2O3:C im Hinblick auf eine Verwendung bei der Lumineszenzdatierung …

    heid-diss Repository record

  9. The dual development of an optical tomographic scanner and three dimensional gel dosimeter for complex radiotherapy verification

    Heathcote, Alan D.University of Hull2008

    … The development of tissue equivalent gel dosimeters that provide an integrated assessment of the dynamic treatments, are primarily imaged with Magnetic Resonance Imaging (MRI).This thesis describes the dual development and assessment of an optical tomographic scanner and normoxic gel …

    hull Repository record

  10. Fault-tolerant passively integrating in-vivo dosimeters for feedback-enabled proton therapy (IF²D, or integrating feedback F-center dosimeter)

    Iturbide, RossanaMassachusetts Institute of Technology2018

    Current dosimeters used in radiotherapy for cancer treatment fail to distinguish between radiation received by the targeted tumor and the surrounding healthy tissue. The Integrating Feedback F-center Dosimeter is designed to be fault-tolerant, with the capability to distinguish the radiation dose …

    mit Repository record

  11. Evaluation of Polymer Gel Dosimeters For Measurements of Dose and Let In Proton Beams

    Vredevoogd, Kevin M2012

    … assessed the effectiveness of polymer gel dosimeters as tools for measuring the dose deposited by and LET of a proton beam. A total of three BANG® dosimeter formulations were evaluated: BANG®-3-Pro-2 BANGkits™ for dose measurement and two BANG®-3 variants, the LET-Baseline and LET-Meter …

    uthsc Repository record

  12. Development of novel indicators

    McFarlane, MichaelUniversity of Strathclyde2012

    … dissolved in poly(vinyl alcohol). This viologen dosimeter responds clearly to different wavelengths and intensities of UV light, although the colour change is hampered by the presence of oxygen, and completely reversed in the absence of UV light. Attempts are made to enhance the rate of the …

    strathclyde Repository record

  13. Measuring terrestrial wildlife external radiation exposure under field conditions

    Aramrun, P2026

    … conditions. An evaluation of available passive dosimeter technologies was undertaken and guidance developed on the selection of dosimeters for different sizes of terrestrial animals. To test dosimeters under field conditions, a field study using reindeer in an area of Norway with elevated 137Cs …

    salford Repository record

  14. Quality Assurance of Advanced Treatment Modalities Using Presage® Dosimeters

    Lafratta, Ryan G2016

    … in patient-specific IMRT QA. A volumetric dosimeter such as PRESAGE<sup>®</sup> is able to provide a complete 3D measured dosimetry dataset with one treatment plan delivery. It was hypothesized that a PRESAGE<sup>® </sup>dosimeter would agree with 2D measurements within ±5%/3mm using a …

    uthsc Repository record

  15. A PATTERN RECOGNITION APPROACH TO LEARNING TRACKS OF HEAVY-ION PARTICLES IN TIMEPIX DETECTORS

    Hoang, Son M. 1985-University of Houston2013

    … the capability to develop an active personal dosimeter for use in space radiation environments. The work reported here is based on the Timepix chip, which when coupled with an Si sensor, can function as an active nuclear emulsion, allowing the visualization of the individual tracks created as …

    houston Repository record

  16. Electron paramagnetic resonance dosimetry and the use of Japanese wild boar tooth enamel as a dosimeter for reconstruction of lifetime external absorbed doses from the Fukushima Exclusion Zone

    Harshman, Amber, author, Johnson, Thomas E., advisor, Brandl, Alexander, committee member, Sudowe, Ralf, committee member, Fisher, Gwen, committee memberColorado State University. Libraries2018

    … with tooth enamel from Japanese wild boar as dosimeters has proven to be a viable method which can be used to reconstruct doses to wildlife in accident-stricken areas in the absence of alternative dosimetry.

    colostate Repository record

  17. Cone Beam Optical Computed Tomography-Based Gel Dosimetry

    Olding, Timothy2010

    … with stable and reliable low-toxicity gel dosimeters is one key step in this process. In this thesis, the performance capabilities and limitations of the two main classes of cone beam optical CT-based absorbing and scattering gel dosimetry are characterized, and their measurement improved …

    queens Repository record

  18. Development of novel intelligence links and pigments

    Grosshans, PaulineUniversity of Strathclyde2012

    … vapour, ammonia and volatile amines. Two UV dosimeters and the use of these novel dosimeters to measure solar UV exposure dose are discussed. The first dosimeter is based on a redox dye which is reduced by means of a UVB activated semiconductor photocatalyst. The second dosimeter is based on …

    strathclyde Repository record

  19. Designing an experiment to study absorption vs. dose for feedback enabled radiation therapy

    Green, Hadrick AlexisMassachusetts Institute of Technology2017

    … the procedure. The integrating feedback f-center dosimeter (IF2D) is a dosimeter that would address these challenges and enable feedback during radiotherapy procedures, which would give doctors and patients confidence that the correct dose was delivered to the target sites without exceeding …

    mit Repository record

  20. Comparison of the Effects of Cobalt-60 [gamma]-Rays and Tritium [beta][superscript -]Particles on Water Radiolysis and Aqueous Solutions and Radiolysis of the Ceric-Cerous Sulfate Dosimeter at Elevated Temperature

    Mirsaleh Kohan, LeilaUniversité de Sherbrooke2014

    … conditions as well as in the aerated Fricke dosimeter. One of our main findings was that the measured Fricke yield G(Fe[superscript 3+]) could be best reproduced if a single, mean “equivalent” electron energy of ~7.8 keV were used to mimic the energy deposition by the tritium …

    sherbrooke Repository record

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