This spectrum was measured using a 45% n-type detector, mounted in a standard 10cm thick cylindrical graded shield, in a routine laboratory at typical altitude with no special background suppression facilities. The spectrum was analyzed by GammaVision. This particular analaysis demonstrates the ability of GammaVision, under the same analytical parameters, to find peaks invisible to the naked eye and to ignore perfectly obvious peaks.

	Measured Energy (keV)	True Energy (keV)	Peak Counts	Nuclide	Emission Probability (%)	Source of radiation
1	726.8	726.86	0	228Ac	0.62	232Th series
2	727.52	727.33	647	212Bi	6.74	232Th series
3	755.57	755.31	170	228Ac	1	232Th series
4	766.36	765.96	154	214Pb	0.053	238U series (226Ra)
		766.37		234mPa	0.316	238U series
5	768.35	768.36	573	214Bi	4.891	238U series (226Ra)
6	785.92	785.37		212Bi	1.11	232Th series
		785.96		214Pb	1.064	238U series (226Ra)
		786.1		214Bi	0.314	238U series (226Ra)
		786.27		234mPa	0.055	238U series
7	795.4	794.95	476	228Ac	4.25	232Th series
8	803.4	803.06		b+/b-Ann.	1	206Pb(n,n’) prompt g
9	806.51	806.17	144	214Bi	1.262	238U series (226Ra)
10	832.6	832.39	135	214Bi	0.0346	238U series (226Ra)
11	835.7	835.71	236	228Ac	1.61	232Th series
		835.9		208Tl	0.076	232Th series
12	839.27	839.04	160	214Pb	0.587	238U series (226Ra)
13	860.94	860.56	356	208Tl	12.5	232Th series
14	911.54	911.2	2323	228Ac	25.8	232Th series
15	934.42	934.06	274	214Bi	3.096	238U series (226Ra)
16	964.84	964.08	521	214Bi	0.363	238U series (226Ra)
		964.77		228Ac	4.99	232Th series
17	969.16	968.97	1392	228Ac	15.8	232Th series
18	1001.68	1001.03	414	234mPa	0.839	238U series
19	1120.75	1120.29	1525	214Bi	14.907	238U series (226Ra)

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