Table 1.

Summary of LS cocktail compositions used in the preliminary and calibration experiments. In the table, each experiment trial is identified with an alphabetic identifier (ID). The remaining categories are: the originating ampoule (Amp.) used to prepare the ⁶³Ni cocktails; the commercial scintillant (Scin.) employed in the ⁶³Ni and ³H cocktails, where RS = Ready Safe, UG = Ultima Gold, and GEL = Insta-Gel XF; the spectrometer used (Spec.) for the given trial, where B = Beckman and P = Packard; the number of cocktails n_c prepared for each experiment; the range of cocktail ages (Age) in days between the time of sample preparation and midpoint of the LS counting interval; LS cocktail water mass fraction (f); and the masses of employed scintillant (m_s), imposed quenching agent (m_q), added water (m_w), added Ni⁺² carrier solution (m_c), and either the ⁶³Ni or ³H solution (m_x)

ID	Amp.	Scin.	Spec.	nc	Age (d)	f	ms (g)	mq (g)	mw (g)	mc (g)	mx (g)
A	30	RS	B	5	1–2	0.001	15	0–0.4	0	0	0.01–0.02
B	30	RS	B	5	8–9	0.001	15	0–0.4	0	0	0.01–0.02
C	30	RS	B	5	39–40	0.001	15	0–0.4	0	0	0.01–0.02
D	30	RS	B	5	85–86	0.001	15	0–0.4	0	0	0.01–0.02
E	30	UG	P	5	1–2	0.001	15	0–0.4	0	0	0.01–0.02
F	30	UG	P	5	8–9	0.001	15	0–0.4	0	0	0.01–0.02
G	30	UG	B	5	4–5	0.001	15	0–0.4	0	0	0.01–0.02
H	30	RS	P	5	4–5	0.001	15	0–0.4	0	0	0.01–0.02
I	7	UG	B	9	0.2–2	0.03	14.5	0–0.4	0.5	0	0.02–0.03
J	7	UG	P	9	2.2–4	0.03	14.5	0–0.4	0.5	0	0.00–0.03
K	58	RS	B	6	0.1–1.5	0.003–0.014	10	0–0.06	0–0.08	0–0.08	0.02–0.06
L	58	RS	P	6	3.3–4.5	0.003–0.014	10	0–0.06	0–0.08	0–0.08	0.02–0.06
M	M5	RS	B	5	0.1–1.7	0.003–0.014	10	0–0.06	0–0.08	0–0.08	0.01–0.07
N	M4	RS	B	5	0.1–1.7	0.003–0.014	10	0–0.06	0–0.08	0–0.08	0.01–0.05
O1	30	RS	B	6	0.2–1.6	0.003–0.11	8.8–10	0	0.02–1.2	0.02–1.2	0.01–0.02
P1	30	RS	B	6	6.1–7.1	0.003–0.11	8.8–10	0	0.02–1.2	0.02–1.2	0.01–0.02
Q	30	UG	B	6	3.8–5.4	0.003–0.11	8.8–10	0	0.02–1.2	0.02–1.2	0.01–0.02
R	30	UG	B	6	7.2–8.1	0.003–0.11	8.8–10	0	0.02–1.2	0.02–1.2	0.01–0.02
S	30	UG	P	6	0.2–1.6	0.003–0.11	8.8–10	0	0.02–1.2	0.02–1.2	0.01–0.02
T	30	UG	P	6	6.1–7.1	0.003–0.11	8.8–10	0	0.02–1.2	0.02–1.2	0.01–0.02
Ua	30	RS	P	6	3.8–5.4	0.003–0.11	8.8–10	0	0.02–1.2	0.02–1.2	0.01–0.02
Va	30	RS	P	6	7.2–8.1	0.003–0.11	8.8–10	0	0.02–1.2	0.02–1.2	0.01–0.02
W	58	RS	B	5	0.1–2.4	0.09–0.2	10.08–11.04	0	0.9–1.9	0.9–1.9	0.02
X	58	UG	B	5	0.1–2.4	0.08–0.20	10.08–11.04	0	0.9–1.9	0.9–1.9	0.02
Y	58	RS	P	5	4.2–7.0	0.09–0.2	10.08–11.04	0	0.9–1.9	0.9–1.9	0.02
Z	58	UG	P	5	4.2–7.0	0.08–0.20	10.08–11.04	0	0.9–1.9	0.9–1.9	0.02
AA	48	UG	B	5	2.8–4.0	0.1	10.5	0–0.75	0–1.2	0–1.2	0.02
ABb	48	UG	B	4	2.8–4.0	0.1	10.5	0–0.75	0–1.2	0–1.2	0.02
AC	48	UG	P	5	0.1–1.5	0.1	10.5	0–0.75	0–1.2	0–1.2	0.02
ADb	48	UG	P	4	0.1–1.5	0.1	10.5	0–0.75	0–1.2	0–1.2	0.02
AEc	7	GEL	B	4	0.1–1.7	0.015–0.11	6.5–11.5	0	0–5.5	0.02	0.02
AFd	7	GEL	B	4	0.1–1.7	0.30–0.38	6.5–11.5	0	0–5.5	0.02	0.02
AGc	7	GEL	P	4	1.9–3.5	0.015–0.11	6.5–11.5	0	0–5.5	0.02	0.02
AHd	7	GEL	P	4	1.9–3.5	0.30–0.38	6.5–11.5	0	0–5.5	0.02	0.02

^aProblems in determining the masses of cocktails 27, 30, and 31 caused these particular cocktails to be excluded from the overall average.

^bThe fraction of added Ni⁺² carrier solution that comprised the aqueous fraction of the cocktail was varied, but the overall aqueous fraction of the cocktail remained constant.

^c“Normal” Cocktails—the first cocktail gave spurious results and was not included in the average.

^d“Gel” Cocktails—the first cocktail gave spurious results and was not included in the average.