Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

A new phosphor Li2B4O7: Cu for TLD.

M Takenaga, O Yamamoto, T Yamashita

    Health Physics
    |April 1, 1983
    PubMed
    Summary

    Copper-doped lithium tetraborate (Li2B4O7:Cu) shows promise for thermoluminescent dosimetry due to its tissue-equivalent atomic number. This phosphor exhibits high sensitivity and good stability for radiation detection.

    Related Concept Videos

    You might also read

    Related Articles

    Articles linked to this work by shared authors, journal, and citation graph.

    Sort by
    Same author

    Correlation between serum thymus and activation-regulated chemokine levels and eczematous drug eruption following oral challenge test with clonazepam.

    Clinical and experimental dermatology·2020
    Same author

    Image Gallery: Annular erythema related to Capnocytophaga canimorsus bacteraemia after a dog bite.

    The British journal of dermatology·2018
    Same author

    Juvenile pemphigus vulgaris manifesting as vegetating skin lesions.

    Clinical and experimental dermatology·2018
    Same author

    Hypereosinophilia successfully treated with the novel antihistamine bilastine.

    Clinical and experimental dermatology·2018
    Same author

    A small nodule on the auricle.

    Clinical and experimental dermatology·2018
    Same author

    CD8+ T cell-mediated interface dermatitis during combination chemotherapy with mogamulizumab in a patient with adult T-cell leukaemia/lymphoma.

    Clinical and experimental dermatology·2018

    Area of Science:

    • Materials Science
    • Radiation Dosimetry
    • Solid State Physics

    Background:

    • Thermoluminescent dosimetry (TLD) is crucial for radiation monitoring.
    • Developing TLD materials with tissue-equivalent effective atomic numbers enhances accuracy.
    • Lithium tetraborate (Li2B4O7) doped with copper (Cu) is investigated for its dosimetric potential.

    Purpose of the Study:

    • To synthesize and characterize Li2B4O7:Cu phosphor for thermoluminescent dosimetry.
    • To evaluate the dosimetric properties of the developed phosphor, including sensitivity, fading, linearity, humidity effects, energy dependence, and light-induced fading.

    Main Methods:

    • Sintering method used for phosphor preparation.
    • Thermoluminescence measurements to analyze glow peaks and emission spectra.
    • Dosimetric characteristics evaluated through various radiation exposure and environmental tests.

    Main Results:

    • The Li2B4O7:Cu phosphor has an effective atomic number of 7.3, closely matching tissue (7.4).
    • It exhibits a dosimetric glow peak at 205°C and a broad emission band at 368 nm.
    • Gamma-ray sensitivity is approximately 20 times higher than Li2B4O2:Mn.
    • The phosphor shows good stability with minimal fading (<9% in 60 days) and acceptable humidity resistance (10-25% sensitivity loss).
    • Linear response to exposure up to 10^5 R and flat energy dependence from 40 keV to 7 MeV were observed.

    Conclusions:

    • Li2B4O7:Cu is a promising material for thermoluminescent dosimetry due to its tissue equivalence and superior dosimetric properties.
    • The sintering method yields a moisture-resistant phosphor with high sensitivity and good stability.
    • Further research may optimize this material for practical radiation detection applications.

    Related Experiment Videos