Design of the Online Gross γ Monitoring Instrument at the Exit of the Helium Purification System in HTR-PM

Table 6

Changes in and due to increasing or decreasing the activity concentrations of some nuclides by one order of magnitude.

			Relative rate of change; (%)		Relative rate of change; (%)
		[]		[]
Original activity concentration		1.19E – 04	0.0	1.88E – 06	0.0
Kr-88	Increase its activity concentration by one order of magnitude	2.55E – 04	114.3	6.69E – 06	255.9
	Decrease its activity concentration by one order of magnitude	9.10E – 05	–23.5	8.96E – 07	–52.3
Xe-133	Increase its activity concentration by one order of magnitude	1.92E – 05	–83.9	3.01E – 07	–84.0
	Decrease its activity concentration by one order of magnitude	2.49E – 04	109.2	3.93E – 06	109.0
Xe-135	Increase its activity concentration by one order of magnitude	1.72E – 04	44.5	1.04E – 06	–44.7
	Decrease its activity concentration by one order of magnitude	1.08E – 04	–9.2	2.04E – 06	8.5
I-131	Increase its activity concentration by one order of magnitude	1.19E – 04	0.0	1.87E – 06	–0.5
	Decrease its activity concentration by one order of magnitude	1.19E – 04	0.0	1.88E – 06	0.0