Table 8.

Results from measurements of several subsystems of the XENON1T setup. The cryogenic pipe and the TPC were not measured directly. Their ${}^{222}$Rn emanation rates were inferred indirectly by subtracting the results from two measurements, respectively

ID	Component	Activity [mBq]	Comment
#48	Cryostat (inner vessel)	$1.8\pm 0.3$
#49	Pipe with cables	$2.7\pm 0.2$
#50	Cryogenic system	$2.4\pm 0.3$
#51	Cable feedthroughs	$1.9\pm 0.2$
#52	Cryogenic pipe (without cable pipe and cables)	$9.4\pm 1.0$	Indirect measurement
#13 and #14	heat exchangers and heater	$0.20\pm 0.04$	From Table 2
	Inner detector volume without TPC	$18.4\pm 1.0$
	(sum of all items above)
#53	Inner detector volume with TPC	$19.3\pm 2.1$
#54	TPC	$\le 4.4$	Indirect measurement: difference between
			Inner detector volume with and without TPC