Study on background count rate and counting efficiency of plastic scintillation microspheres

Table 1. Parameters of different liquid scintillation vials
View table
View in Article
Table 1. Parameters of different liquid scintillation vials
序号
Number
材质
Material
规格
Specifications / mL
外径
Outer diameter
/ mm
高度
Height
/ mm
G7 玻璃Glass 7 16.8 57.5
G20 玻璃Glass 20 27.2 60.7
P7 塑料Plastics 7 14.6 57.5
P20 塑料Plastics 20 26.2 60.7

Table 2. Background counting rate and ¹⁴C counting efficiency of four types of liquid scintillation vials
View table
View in Article
Table 2. Background counting rate and ¹⁴C counting efficiency of four types of liquid scintillation vials
序号 Number 背景计数率 Background count / Counts∙min^-1 ¹⁴C计数效率 Count efficiency of ¹⁴C / %
G7 17.1 41.0
G20 22.6 39.5
P7 17.3 41.8
P20 20.8 39.5

Table 3. Background counting rate and ¹⁴C counting efficiency for different PSm dosages

View table

View in Article

Table 3. Background counting rate and ¹⁴C counting efficiency for different PSm dosages

PSm质量 Mass of PSm / g	高度 Height of PSm / mm	背景计数 Background count / Counts∙min^-1	¹⁴C计数效率 Count efficiency of ¹⁴C / %
2	8	15.5	32.9
4	14	17.6	36.0
6	20	19.1	37.1
8	26	19.2	38.4
10	32	20.8	39.5
12	38	21.9	40.3

Table 4. MDA of different liquid scintillation vials
View table
View in Article
Table 4. MDA of different liquid scintillation vials
液闪瓶 Liquid scintillation vials MDA / Bq·L^-1
G7 131
G20 51
P7 133
P20 48

Table 5. Measurement of ¹⁴C specific activity using PSm

View table

View in Article

Table 5. Measurement of ¹⁴C specific activity using PSm

期望值 Expected value / Bq·L^-1	测量值 Measurement value / Bq·L^-1	偏差 Deviation / %
574.5±8.6	545.9±43.7	-5.0
1 038.4±15.6	1 028.1±49.2	-1.0
2 284.6±34.3	2 331.8±69.5	2.1
2 680.5±40.2	2 705.4±74.4	0.9
3 825.6±57.4	3 853.9±86.2	0.7

Tools

Get Citation

Copy Citation Text

Hui ZHANG, Yadong WANG, Yan MA, Lina MA. Study on background count rate and counting efficiency of plastic scintillation microspheres[J]. NUCLEAR TECHNIQUES, 2025, 48(5): 050301

Download Citation

EndNote(RIS)BibTex Plain Text

Set citation alerts for article

Save article for my favorites

Paper Information

Category: NUCLEAR CHEMISTRY, RADIOCHEMISTRY, RADIOPHARMACEUTICALS AND NUCLEAR MEDICINE

Received: Jun. 17, 2024

Accepted: --

Published Online: Jun. 26, 2025

The Author Email: Hui ZHANG (513563244@qq.com)

DOI:10.11889/j.0253-3219.2025.hjs.48.240277

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Parameters of different liquid scintillation vials

Table 1. Parameters of different liquid scintillation vials

Table 2. Background counting rate and 14C counting efficiency of four types of liquid scintillation vials

Table 2. Background counting rate and 14C counting efficiency of four types of liquid scintillation vials

Table 3. Background counting rate and 14C counting efficiency for different PSm dosages

Table 3. Background counting rate and 14C counting efficiency for different PSm dosages

Table 4. MDA of different liquid scintillation vials

Table 4. MDA of different liquid scintillation vials

Table 5. Measurement of 14C specific activity using PSm

Table 5. Measurement of 14C specific activity using PSm

Table 2. Background counting rate and ¹⁴C counting efficiency of four types of liquid scintillation vials

Table 2. Background counting rate and ¹⁴C counting efficiency of four types of liquid scintillation vials

Table 3. Background counting rate and ¹⁴C counting efficiency for different PSm dosages

Table 3. Background counting rate and ¹⁴C counting efficiency for different PSm dosages

Table 5. Measurement of ¹⁴C specific activity using PSm

Table 5. Measurement of ¹⁴C specific activity using PSm