LLRD by Gross Alpha

Environmental
Instruments
Canada Inc.
http://www.eic.nu

Long Lived Radioactive Dust (LLRD) Concentration by Gross Alpha Counting

   Notes:


Input Fields Calculated Fields

Enter the sample pump flow rate (L/min):

Enter the sampling time (min): Air volume sampled (m³)

Enter the efficiency of the TM372 counter (or equivalent):

Enter the gross counts from the counter:

Enter the sample count time (min): Gross counts per minute

Enter the background counts from the counter:

Enter the background count time (min):    Background cpm

   Bq/m3

Optional Input:

Enter the 20 mSv ALI (Bq)   µSv/h equivalent dose rate (assuming 1.2 m³/h breathing rate)

	Input Fields	Calculated Fields
Enter the sample pump flow rate (L/min):
Enter the sampling time (min):			Air volume sampled (m³)
Enter the efficiency of the TM372 counter (or equivalent):
Enter the gross counts from the counter:
Enter the sample count time (min):			Gross counts per minute
Enter the background counts from the counter:
Enter the background count time (min):			Background cpm
			Bq/m3
Optional Input:
Enter the 20 mSv ALI (Bq)			µSv/h equivalent dose rate (assuming 1.2 m³/h breathing rate)