... laboratories, environmental monitoring around nuclear facilities in areas such as alarm indication to me promptly, to ensure the safety of ... based on ray intensity, faster response 16. alarm threshold: 0.5,1.0,2.5,10,30,50,100,500 μSv / ... h 17. Protection Alarm response time: ≤ 5 seconds 18. ... 120g BS2010 X/Y-ray Personal Dosimeter portable nuclear radiation Alarm#2