KALIBRASI PEMANTAU RADON PASIF MENGUNAKAN ARANG AKTIF DAN FAKTOR-FAKTOR YANG MEMPENGARUHINYA

Abstract

Calibration of passive-radon monitoring tool has been performed by using active charcoal and many factors which influenced it. Radon gas is radioactive gas that naturally occurs and available in everywhere. One of concentration meter is passive-radon monitoring tool which use active-charcoal. Before used, the monitoring tools needs to be calibrate to get calibration factors. Factors which influenced calibration factor are active-charcoal, filter and humidity type. This research performed due to factors that influence radon-absorption to passive-radon monitor using active-charcoal to identify calibration factor from many factor. Passive-radon monitoring tools made by plastic hard pipe with 7.7 cm in diameter and 3 cm of high which contain active-charcoal 50 gram. This research use active-charcoal 4-type and 4 filter-type which used letter in papari for 3-5 days. In varians humidity condition, that humidity are 70%, 80%, 90% and 95%. The magnitude of calibration factor which obtained from research using active-charcoal from lokal 2 use paper filter is the best result, that is 1.25 x 10-5 (Bq gram-1)/(Bq m3 x hour).