Table 2.

Properties of the SBDS detectors used in this work.

Detector set	Detector number	Serial number	Detector type	SAmBe (bubble mSv−1)
1	A91	1315	SBDS-10	145±19
1	A92	1415	SBDS-100	153±12
1	A93	1714	SBDS-600	139±22
1	A94	1921	SBDS-1000	214±83
1	A95	2112	SBDS-2500	121±53
1	A96	2305	SBDS-10000	46±3
2	A01	1216	SBDS-10	160±37
2	A02	1514	SBDS-100	135±9
2	A03	1614	SBDS-600	141±18
2	A04	1823	SBDS-1000	227±100
2	A05	2016	SBDS-2500	156±80
2	A06	2205	SBDS-10000	46±4