PTTL method applied to UV radiation detection during refractive surgery using excimer laser
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2005
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Radiation Protection Dosimetry
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The method of phototransferred thermoluminescence (PTTL), using CaSO4:Dy pellets produced at IPEN as sensitive
material, was used to detect the spread laser radiation inside the surgery room during refractive surgical procedures using
ArF excimer lasers. The purpose of this work was to study the viability of performing the ultraviolet radiation (UVR)
exposure detection of patients and the hospital’s surgical staff during a refractive surgery. The CaSO4:Dy pellets were
positioned at different distances from the laser source inside the surgery room: patient’s ( ≅0.15 m), surgeon’s ( ≅0.5 m) and
nurse’s ( ≅1.0 m) foreheads, lateral ( ≅1.5 m) and back ( ≅4.0 m) walls. The measurements of PTTL were carried out at two
different conditions: five surgeries, each one taking ~ 10 min, and during a period of 4 h (cumulative), when several operations
were performed. The detectors positioned as far as 4.0 m from the UV laser source were sensitised, making the UVR detection
feasible at large source–detector distances. The absorbed energy was detected in the range from 40 μJ to 30 mJ during a
surgery. This result indicates that the method studied can be used to detect the spread UVR.
Como referenciar
GROSSI, F.H.; MELO JUNIOR, L.A.S.; SCHOR, P.; CAMPOS, L.L. PTTL method applied to UV radiation detection during refractive surgery using excimer laser. Radiation Protection Dosimetry, v. 113, n. 2, p. 185-188, 2005. DOI: 10.1093/rpd/nch443. Disponível em: http://repositorio.ipen.br/handle/123456789/7651. Acesso em: 15 Mar 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.