Notes:
   

	Input Fields	Calculated Fields
Enter the length of the tunnel (m)			Chamber volume (m3):
Enter the cross sectional area of the tunnel (m2)			Surface area of the tunnel (m2).
Enter the airflow (m3/s)			Time to traverse the tunnel (s):
Enter the radon exhalation rate (Bq/m2/s)			Rn source term (Bq/s):
			atoms of Radon per second
Enter initial radon concentration (Bq/m3):			atoms of Radon per m3
Enter initial Po-218 concentration (Bq/m3):			atoms of Po-218 per m3
Enter initial Pb-214 concentration (Bq/m3):			atoms of Pb-214 per m3
Enter initial Bi-214 concentration (Bq/m3):			atoms of Bi-214 per m3
At the End of the Tunnel:			atoms of Radon per m3
			atoms of Po-218 per m3
			atoms of Pb-214 per m3
			atoms of Bi-214 per m3
			Bq of Rn per m3
			Bq of Po-218 per m3
			Bq of Pb-214 per m3
			Bq of Bi-214 per m3
			WL
			F

 

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