TABLE 1.

Decay chains from ²⁸⁸Fl, ²⁸⁹Fl and ²⁸⁵Cn observed in chemistry experiments at TASCA.

Chain #	Decay assignment (energy in MeV * )	Δt 1 [s]	Δt 2 [s]	Random probability	Detector number b /Temperature	Surface
Run I	Beam integral 4.0(4)⋅1018
1	α1(9.65)→SF(73 + 61)/ 288 Fl → 284 Cn	0.65	−	6.3⋅10–6	I-9/21°C	Au
2	α1(9.78)→α2 (9.11)→SF(37 + 78)/ 289 Fl→ 285 Cn→ 281 Ds	11.6	25.3	1.3⋅10–6	I-9 (α1)/21 °CII-20 (α2,SF)/−32°C	Au
						Au
Run II	Beam integral 3.1(3)⋅1018
3	α1(9.80)→α2(9.08)→SF(79 + 44)/ 289 Fl→ 285 Cn→ 281 Ds	62.6	3.6	1.0⋅10–6	II-30/−134°C	Ice
Run III	Beam integral 6.2(6)⋅1018
4	α1(9.47)→SF(75 + 92)/ 288 Fl → 284 Cn	0.22	−	1.6⋅10–5	I-2/21°C	Au
5	α1(10.02)→SF(97)/ 288 Fl → 284 Cn	0.45	−	3.1⋅10–4	II-29/−121°C	Ice
6	α1(10.29)→SF(81 + 94)/ 288 Fl → 284 Cn	0.18	−	8.3⋅10–6	I-7 (α1)/21°C	Au
					I-15(SF)/21°C
7	α1(9.70)→α2(9.31)→SF(86 + 22)/ 289 Fl→ 285 Cn→ 281 Ds	78.4	39.7	9.1⋅10–9	II-30/−136 °C	Ice
8	α1(9.92)→α2(9.28)→SF(68 + 84)/ 289 Fl→ 285 Cn→ 281 Ds	80.0	40.3	1.9⋅10–6	I-13 (α1)/21°CI-31 (α2,SF)/21°C	Au
Incomplete chains c
9	α1(9.15)→SF(67 + 50)/ 285 Cn→ 281 Ds	25.0	−	6.2⋅10–2	I-8/21°C	Au
10	α1(9.15)→SF(95 + 107)/ 285 Cn→ 281 Ds	1.0	−	2.5⋅10–3	I-8 / 21°C	Au
11	α1(8.89)→SF(93 + 124)/ 285 Cn→ 281 Ds	0.8	−	4.2⋅10–4	II-7 / −7°C	Au

^aValues for the α-decay and SF, events detected during beam-off periods are given in bold. The energies of SF, fragments are given as registered without any correction for the pulse height defect.

^bThe detector number reflects the number of the COMPACT, array and the number of the detector pair in the array from 1 to 32. The first Au-covered COMPACT, array is denoted as I; the second Au-covered COMPACT, array is denoted as II., Events #3 and #9 were observed in the experiment, where an additional SiO₂-covered COMPACT, array was placed upstream of the two Au-covered COMPACT, arrays.

^cThe incomplete chains were observed during runs II and III.