Growth and characterization of LiF single crystal fibers

Alshourbagy, M.; Parisi, Daniela; Toncelli, A.; Tonelli, M.; Marchetti, Fabio

doi:10.1002/crat.200610741

Cited by 2 publications

(1 citation statement)

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“…An increase in the PL collection efficiency can be foreseen by using LiF single crystal fibers. 94 Since the dose response and ionization density (LET) response are interrelated, there are some basic constraints in the development of a universal luminescence device simultaneously featuring flat LET/energy response over a very large dose range for radiation at different energies, especially in the case of hadrons.…”

Section: Rpl Dosimetry In Lif and Challenges At Clinical Doses In Pro...mentioning

confidence: 99%

Radiophotoluminescence of Color Centers in Lithium Fluoride for Novel Radiation Detectors in Proton-Beam Diagnostics and Clinical Dosimetry

Montereali

Nichelatti

Piccinini

et al. 2021

ECS J. Solid State Sci. Technol.

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The peculiar photoluminescence properties of radiation-induced electronic defects in lithium fluoride (LiF), known as color centers, are well known for applications in tunable lasers and photonic light-emitting microdevices operating at room temperature. In the last two decades they have been under exploitation in radiation imaging detectors and dosimeters based on the optical reading of the visible photoluminescence in LiF crystals and polycrystalline thin films. They were proposed for soft X-ray imaging at high spatial resolution and, more recently, their use has been successfully applied to advanced diagnostics of proton beams. After proton irradiation of LiF, the emission intensity of the radiation-induced point defects is proportional to the absorbed dose over several orders of magnitude, thus novel solid-state dosimeters with imaging capabilities can be envisaged, although dose values that are typical of clinical radiotherapy are still a challenge. In this brief review, the main experimental results and recent advances concerning radiophotoluminescence of color centers in optically transparent LiF crystals and polycrystalline thin films are presented and discussed in order to highlight the advantages, challenges and limits related to the feasibility of detectors for protontherapy applications.

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Section: Rpl Dosimetry In Lif and Challenges At Clinical Doses In Pro...mentioning

confidence: 99%