Influence of wall effect on detection efficiency of β-emitters in TDCR-Čerenkov method

Zihao FAN; Juncheng LIANG; Haoran LIU; Daqing YUAN; Yang XIAO; Changhao SUN; Zhijie YANG; Meiling LIU

doi:10.11889/j.0253-3219.2023.hjs.46.060504

Journals >NUCLEAR TECHNIQUES >Volume 46 >Issue 6 >Page 060504 > Article

NUCLEAR TECHNIQUES
Vol. 46, Issue 6, 060504 (2023)

Influence of wall effect on detection efficiency of β-emitters in TDCR-Čerenkov method

Zihao FAN^1,2, Juncheng LIANG², Haoran LIU², Daqing YUAN^1,*..., Yang XIAO², Changhao SUN², Zhijie YANG² and Meiling LIU²|Show fewer author(s)

Author Affiliations

¹China Institute of Atomic Energy, Beijing 102413, China

²National Institute of Metrology, Beijing 100029, China

show less

DOI: 10.11889/j.0253-3219.2023.hjs.46.060504 Cite this Article

Zihao FAN, Juncheng LIANG, Haoran LIU, Daqing YUAN, Yang XIAO, Changhao SUN, Zhijie YANG, Meiling LIU. Influence of wall effect on detection efficiency of β-emitters in TDCR-Čerenkov method[J]. NUCLEAR TECHNIQUES, 2023, 46(6): 060504 Copy Citation Text

show less

Fig. 1. Schematic diagram of sample preparation

Download full size | View in the Article

Fig. 2. TDCR counting system (a) Physical object diagram, (b) System diagram

Download full size | View in the Article

Fig. 3. Deposition spectra of β emitters in hydrochloric acid (a) 700 keV, (b) 2 800 keV

Download full size | View in the Article

Fig. 4. Deposition spectra of β emitters of the wall of counting vial (a) 700 keV, (b) 2 800 keV

Download full size | View in the Article

Fig. 5. Čerenkov photon numbers k(E) vs. energy

Download full size | View in the Article

核素 Nuclide	比活度 Specific activity / Bq·g^-1
核素 Nuclide	TDCR-切伦科夫（无壁效应） TDCR-Čerenkov (without wall effect)	TDCR-切伦科夫（有壁效应） TDCR-Čerenkov (with wall effect)	TDCR-LS
⁹⁰Y	25.60(10)×10³	25.44(10)×10³	25.44(12)×10³
³²P	24.99(16)×10⁴	24.79(16)×10⁴	24.83(5)×10⁴
²⁰⁴Tl	1.03(2)×10⁵	1.03(2)×10⁵	1.04(1)×10⁵

Table 1. Comparison of results

分量 Component	TDCR-切伦科夫 TDCR-Čerenkov			TDCR-LS
分量 Component	⁹⁰Y	³²P	²⁰⁴Tl	⁹⁰Y	³²P	²⁰⁴Tl
测量变异性 Measurement variability	0.10	0.06	0.65	0.48	0.10	0.36
死时间 Dead-time	0.03	0.03	0.01	0.02	0.02	0.01
符合分辨时间 Resolving-time	0.04	0.05	0.16	0.03	0.03	0.04
半衰期修正 Decay correction	0.05	0.03	<0.01	0.05	0.03	<0.01
本底 Background	0.06	0.06	0.06	0.04	0.04	0.04
称重 Mass	0.06	0.17	0.13	0.05	0.17	0.25
β谱 β spectrum	0.01	0.01	0.02	<0.01	<0.01	<0.01
各向异性系数 Anisotropy coefficient	0.36	0.56	1.4	―	―	―
kB值 kB value	―	―	―	0.02	0.01	0.04
合成 Combined	0.39	0.60	1.6	0.49	0.21	0.44

Table 2. Evaluation of the combined uncertainties for method including wall effect (%)

Download Citation

Save the article for my favorites

Paper Information

微信扫一扫：分享

微信扫一扫：分享