New Physics: Sae Mulli

Table. 1. Table 1

Several samples used for synthesizing an alcohol-based liquid scintillator. For a standard sample (R) as a reference, 3 g/l PPO is dissolved and 30 mg/l bis-MSB was mixed for the second WLS in LAB. S samples indicate alcohol-based and NE samples are made of 2-Ethoxyethanol solvent.

Sample	Composition of solvent (%)	Fluors, secondary WLS	Note
S1	Alcohol : Water (50 : 50)	PPO 6 g/l	Clear, soluble (marginal)
S2	Alcohol : Water (70 : 30)	PPO 21 g/l	Clear, soluble
S3	Alcohol : Water (70 : 30)	PPO 30 g/l bis-MSB 300 mg/l	Insoluble
S4	Alcohol : UG-F (70 : 30)	PPO 3 g/l POPOP 30 mg/l	Clear, soluble
S5	Alcohol : UG-F (70 : 30)	PPO 3 g/l bis-MSB 30 mg/l	Clear, soluble
NE1	2-Ethoxyethanol : Water (100 : 0)	PPO 15 g/l bis-MSB 300 mg/l	Clear, soluble (bis-MSB extreme)
NE2	2-Ethoxyethanol : Water (90 : 10)	PPO 15 g/l bis-MSB 60 mg/l	Clear, soluble
NE3	2-Ethoxyethanol : Water (70 : 30)	PPO 21 g/l	Clear, soluble
NE4	2-Ethoxyethanol : Water (70 : 30)	PPO 21 g/l bis-MSB 120 mg/l	Insoluble
NE5	2-Ethoxyethanol : Water (10 : 90)	PPO 1 g/l	Insoluble
NE6	2-Ethoxyethanol : Water (10 : 90)	PPO 0.3 g/l	Insoluble, (First clear, but precipitate in the end)
NE7	2-Ethoxyethanol : Water (10 : 90)	PPO 0.2 g/l bis-MSB 20 mg/l	Clear, soluble (marginal)
R(eference)	LAB : UG-F (90 : 10)	PPO 3 g/l bis-MSB 30 mg/l	0.5% Gd (clear, soluble) Reference sample

New Phys.: Sae Mulli 2021;71:21~28 https://doi.org/10.3938/NPSM.71.21