Evaluation of the Portuguese population exposure to ionizing radiation due to x-ray and nuclear medicine procedures from 2013 to 2017

Teles, P.; Trincão, M.; Alves, Francisco; Antunes, Vera; Calado, Daniéla Cristina; Cantinho, Guilhermina; Carvalho, A.; Domingues, Ana Maria; Geão, Ana; Godinho, F.; Isidoro, Jorge; Lança, Isabel; Líbano, L.; Loureiro, Manuel; Macêdo, Rafael Freire de; Moreira, Roberto de Souza; Neves, Diana; Pereira, E.; Pereira, J.; Pereira, Helena; Marinho, Allan; Pintão, Sophia; Robalo, J.; Santos, Joana; Domingues, Inês; SILVA, MARIA FERNANDES GOMIDE DUTRA E; Silveira, Jeane Cristine de Souza da; Simãozinho, P.; Teixeira, Sara Reis; Vale, Joana; Vaz, António Faria; Vaz, P.

doi:10.1016/j.radphyschem.2020.108762

Cited by 10 publications

(2 citation statements)

References 4 publications

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“…Walaupun demikian, radiasi sinar X dapat memutuskan ikatan kimia pada bahan yang terpapar. Khusus untuk bahan biologi, seperti tubuh manusia, putusnya ikatan kimia akan menimbulkan efek negatif, dari gangguan fungsi organ hingga kanker [3][4][5]. Itulah sebabnya, proteksi terhadap tubuh dari paparan radiasi sinar X menjadi penting [6].…”

Section: Pendahuluanunclassified

Deteksi Perubahan Komposisi Cat Dinding Akibat Paparan Sinar X

2020

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Selama ini penelitian hanya fokus pada cara dan pemakaian alat proteksi untuk pasien dan pekerja radiasi. Bahan proteksi paparan radiasi ionik lain yang penting bagi pasien, pekerja radiasi, bahkan masyarakat umum adalah dinding ruangan radiologi. Dinding ruangan radiologi mempunyai syarat tertentu, seperti ketebalan, komposisi bahan, dan warna. Dinding harus berwarna putih agar bersih dari kotoran maupun mikroorganisme. Dinding ruangan tidak terkena paparan langsung, melainkan melalui hamburan, sehingga dosis paparan rendah. Dengan memvariasikan tegangan tabung sinar X seperti yang digunakan pada diagnostik, dilakukan pengamatan terhadap perubahan komposisi cat dinding dengan X-Ray Flourosence (XRF). Hasil penelitian menunjukkan perubahan besar pada laju dosis 1,19 mGy/s atau pada tegangan tabung 80 kV. Senyawa yang terkandung dalam cat menurun persentasenya, bahkan senyawa K2O dan Nb2O5 tidak terdeteksi. Hal ini menunjukkan bahwa jumlah pemakaian sinar X konvensional yang tinggi akan meningkatkan kerusakan cat dinding ruang radiologi. Kata kunci: Sinar X, cat dinding, X-Ray Flouroawnce (XRF), diagnostik

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Section: Pendahuluanunclassified

Deteksi Perubahan Komposisi Cat Dinding Akibat Paparan Sinar X

2020

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“…However, the risk to health, both in patients and medical professionals, has also increased due to steady exposure to these radiations as modern evolution continues. Furthermore, ionizing radiation has become a major energy source from non-natural sources (Teles et al, 2020). The adverse effects of radiation are grouped according to latency into direct (deterministic) and stochastic (delayed) (Santos, 2020).…”

Section: Introductionmentioning

confidence: 99%

Radiation Dose Rate Measurement for Protection Programs in the Work Environment for the Health Workers: An Experimental Study

Fardela¹,

Suparta²,

Ashari³

et al. 2020

PTQ

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Radiation is the energy emitted from electrons in particles or photons (waves) and is classified into nonionized and ionized. Ionizing radiation demonstrates the ability to disintegrate matter along its path and has proven beneficial in medicine. Exposure to this energy tends to instigate adverse effects on human health and heredity (genetics). However, the radiation is not directly measured but requires a nuclear detector to serve as a monitoring device. Radiation workers’ awareness of ionizing radiation levels in the work environment is one of the most important factors in preventing the negative effects of radioactivity. This is possibly identified using various types of detectors. This experiment aimed to provide an overview of radiation dose rate measurement under two conditions. First is the event of contamination in the work environment. The second involves using a detector to solely determine the dose rate from a single source, e.g., gamma radiation. Therefore, the radiation dose rate was evaluated by maximizing the use of detectors with a GUI as a survey meter for contamination. The highest rate (261.42 μSv / h) was observed at a distance of 5 mm, while the least (69.21 μSv / h) was recorded at 50 mm. Also, a dose rate of 5.4 μSv / h and 1.32 μSv / h was obtained at a 5 mm and 50 mm distance from the radiation source, respectively, following the operation as a gamma survey meter. This result shows strong linearity between both measurements and is estimated to accurately determine the contamination level of radioactive elements, alongside the doses rate of the gamma radiation emitting elements.

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