Optically Stimulated Luminescence Dosimeters as an Alternative to Radiographic Film for Performing “Head-Wrap” Linac Leakage Measurements

Kairn, Tanya; Stephens, Holly; Crowe, Scott; Peet, Samuel

doi:10.1007/978-981-10-9023-3_101

Cited by 3 publications

(1 citation statement)

References 5 publications

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“…OSLD response is linear with dose, stabilises quickly (within an hour) and is thereafter subject to minimal fading. 23,24 In recent years, OSLDs have begun to replace TLDs in several areas of radiotherapy dosimetry, including personal radiation dose monitoring, 25,26 postal audits of radiotherapy beam calibration, 22,27 assessments of linac head leakage 28,29 and dose measurements during photon radiotherapy treatments. 20,30 Despite all this, a comprehensive evaluation of the results obtainable by using OSLDs for in vivo dosimetry of TSET treatments has yet to be reported in the literature.…”

Section: Introductionmentioning

confidence: 99%

In vivo monitoring of total skin electron dose using optically stimulated luminescence dosimeters

Kairn

Wilks

et al. 2020

Reports of Practical Oncology & Radiotherapy

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Aim: This study retrospectively analysed the results of using optically stimulated radiation dosimeters (OSLDs) for in vivo dose measurements during total skin electron therapy (TSET, also known as TSEI, TSEB, TSEBT, TSI or TBE) treatments of patients with mycosis fungoides. Background: TSET treatments are generally delivered to standing patients, using treatment plans that are devised using manual dose calculations that require verification via in vivo dosimetry. Despite the increasing use of OSLDs for radiation dosimetry, there is minimal published guidance on the use of OSLDs for TSET verification. Materials and methods: This study retrospectively reviewed in vivo dose measurements made during treatments of nine consecutive TSET patients, treated between 2013 and 2018. Landauer nanoDot OSLDs were used to measure the skin dose at reference locations on each patient, as well as at locations of clinical interest such as the head, hands, feet, axilla and groin. Results: 1301 OSLD measurements were aggregated and analysed, producing results that were in broad agreement with previous TLD studies, while providing additional information about the variation of dose across concave surfaces and potentially guiding future refinement of treatment setup. In many cases these in vivo measurements were used to identify deviations from the planned dose in reference locations and to identify anatomical regions where additional shielding or boost treatments were required. Conclusions: OSLDs can be used to obtain measurements of TSET dose that can inform monitor unit adjustments and identify regions of under and over dosage, while potentially informing continuous quality improvement in TSET treatment delivery.

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Section: Introductionmentioning

confidence: 99%

In vivo monitoring of total skin electron dose using optically stimulated luminescence dosimeters

Kairn

Wilks

et al. 2020

Reports of Practical Oncology & Radiotherapy

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Development of a method for treating lower-eyelid carcinomas using superficial high dose rate brachytherapy

et al. 2020

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Applications of Optically Stimulated Luminescence in Medical Dosimetry

Yukihara

Kron

2020

Radiation Protection Dosimetry

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If the first decade of the new millennium saw the establishment of a more solid foundation for the use of the Optically Stimulated Luminescence (OSL) in medical dosimetry, the second decade saw the technique take root and become more widely used in clinical studies. Recent publications report not only characterization and feasibility studies of the OSL technique for various applications in radiotherapy and radiology, but also the practical use of OSL for postal audits, estimation of staff dose, in vivo dosimetry, dose verification and dose mapping studies. This review complements previous review papers and reports on the topic, providing a panorama of the new advances and applications in the last decade. Attention is also dedicated to potential future applications, such as LET dosimetry, 2D/3D dosimetry using OSL, dosimetry in magnetic resonance imaging-guided radiotherapy (MRIgRT) and dosimetry of extremely high dose rates (FLASH therapy).

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Optically Stimulated Luminescence Dosimeters as an Alternative to Radiographic Film for Performing “Head-Wrap” Linac Leakage Measurements

Cited by 3 publications

References 5 publications

In vivo monitoring of total skin electron dose using optically stimulated luminescence dosimeters

In vivo monitoring of total skin electron dose using optically stimulated luminescence dosimeters

Development of a method for treating lower-eyelid carcinomas using superficial high dose rate brachytherapy

Applications of Optically Stimulated Luminescence in Medical Dosimetry

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