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Project on Radon Dosimetry
Mittuniversitetet, Fakulteten för naturvetenskap, teknik och medier, Institutionen för elektronikkonstruktion.
2020 (engelsk)Independent thesis Advanced level (degree of Master (Two Years)), 20 poäng / 30 hpOppgave
Abstract [en]

The World Health Organization lists radon as one of the 19 most important substances that cause cancer. As a naturally occurring harmful gas, Radon mostly exist in rocks, making caves, mines, etc. However, since Radon gas has great ability to dissolve in water, radon can travel to anywhere. This thesis introduces a newly designed Radon detector and tests its function. The detector is designed base on an alpha particle sensitive diode and the principle of electrostatic capture. The detector’s function is tested in both simulation and experiment. The diode size used in this experiment is 10*10mm2. The measured detection sensitivity is approximately 0.903 (counts/Bq/m3/h) with a channel height of 10mm, which is also verified by simulation.  For a channel height of 12 mm the simulation gives 1.06 (counts/Bq/m3/h) but the measurement gives a much lower value. The reason for that is not yet known. The detector is just a basic model, there are many ways to improve the detector performance in the future.

sted, utgiver, år, opplag, sider
2020. , s. 26
Emneord [en]
Radon, detector, alpha particles
HSV kategori
Identifikatorer
URN: urn:nbn:se:miun:diva-38603OAI: oai:DiVA.org:miun-38603DiVA, id: diva2:1413025
Fag / kurs
Electronics EL1
Utdanningsprogram
International Master's Programme in Electronics Design TELAA 120 higher education credits
Veileder
Examiner
Tilgjengelig fra: 2020-03-09 Laget: 2020-03-09 Sist oppdatert: 2020-03-09bibliografisk kontrollert

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