Improvement of ionization chamber for tritium measurements in in-pile tritium extraction experiments

被引：7

作者：

Chen, Zhilin ^{[1
]}

Peng, Shuming ^{[1
]}

Chen, Ping ^{[1
]}

Chang, Ruiming ^{[1
]}

Wu, Guanyin ^{[1
]}

Li, Yu ^{[1
]}

机构：

[1] China Acad Engn Phys, Inst Nucl Phys & Chem, Mianyang 621900, Sichuan, Peoples R China

来源：

FUSION ENGINEERING AND DESIGN | 2019年 / 147卷

基金：

中国国家自然科学基金;

关键词：

Tritium measurement; Ionization chamber; Fusion; Tritium breeding; RESEARCH-AND-DEVELOPMENT; WATER-ADSORPTION; ITER; RELEASE; ISSUES;

D O I：

10.1016/j.fusengdes.2019.05.041

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Ionization chamber with gold plated wire-wall based on flange structure has been developed for tritium measurements in in-pile tritium extraction experiments. Performance of the improved ionization chamber on airtight and memory effect was greatly enhanced. Gas leakage rate of the chamber was lower than 1.0*10(-13) Pa.m(3)/s with the flange structure. Both tritiated water vapor and tritium in gaseous form have been used in experiments to examine the influence of memory effect caused by tritium absorption on chamber wall. Results indicate that with the design of gold plated wire wall, output signal of the ionization chamber can recover to background level within 1 min after 1 h exposure in tritiated water vapor at 3.0*10(8) Bq/m(3) created by bubbling. While recovery time is less than 20 s after being exposed to tritium in gaseous form at 3.9*10(10) Bq/m(3) for 7 days.

引用

页数：4

共 12 条

[1] Blanket/first wall challenges and required R&D on the pathway to DEMO [J].

Abdou, Mohamed ;

Morley, Neil B. ;

Smolentsev, Sergey ;

Ying, Alice ;

Malang, Siegfried ;

Rowcliffe, Arthur ;

Ulrickson, Mike .

FUSION ENGINEERING AND DESIGN, 2015, 100 :2-43

[2] Analysis of ion recombination in ionization chambers for tritium measurements [J].

Chen, Zhilin ;

Peng, Shuming ;

Cheng, Shenghan ;

Tan, Zhaoyi ;

Wang, Heyi ;

Masao, Matsuyama .

FUSION ENGINEERING AND DESIGN, 2015, 101 :52-55

[3] Theoretical study of Jesse effect in tritium measurements using ionization chambers [J].

Chen, Zhilin ;

Peng, Shuming ;

Lu, Hanghang ;

Tan, Zhaoyi ;

Wang, Heyi ;

Long, Xingui ;

Masao, Matsuyama .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2016, 806 :267-270

[4] Wall effect in ionization chambers for tritium measurements [J].

Chen, Zhilin ;

Mu, Long ;

He, Yuehong ;

Chang, Ruimin ;

Wu, Guanyin ;

Wang, Heyi ;

Wei, Xiye .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2010, 622 (01) :136-138

[5] Overview of R&D at TLK for process and analytical issues on tritium management in breeder blankets of ITER and DEMO [J].

Demange, D. ;

Alecu, C. G. ;

Bekris, N. ;

Borisevich, O. ;

Bornschein, B. ;

Fischer, S. ;

Gramlich, N. ;

Koelloe, Z. ;

Le, T. L. ;

Michling, R. ;

Priester, F. ;

Roellig, M. ;

Schloesser, M. ;

Staemmler, S. ;

Sturm, M. ;

Wagner, R. ;

Welte, S. .

FUSION ENGINEERING AND DESIGN, 2012, 87 (7-8) :1206-1213

[6] The ITER tritium systems [J].

Glugla, M. ;

Antipenkov, A. ;

Beloglazov, S. ;

Caldwell-Nlchols, C. ;

Cristescu, I. R. ;

Cristescu, I. ;

Day, C. ;

Doerr, L. ;

Girard, J. -P. ;

Tada, E. .

FUSION ENGINEERING AND DESIGN, 2007, 82 (5-14) :472-487

[7] Effect of water adsorption on tritium release from Li4SiO4 [J].

Kang, Chunmei ;

Xiao, Chengjian ;

Wang, Xiaolin ;

He, Yuhui ;

Liu, Jun ;

Chen, Xiaojun ;

Peng, Shuming ;

Wang, Heyi .

JOURNAL OF NUCLEAR MATERIALS, 2013, 432 (1-3) :455-459

[8] Tritium release experiments on Li4SiO4 pebbles from TRINPC-I experiments: Effects of water adsorption and hydrogen gas [J].

Kang, Chunmei ;

Wang, Xiaolin ;

Xiao, Chengjian ;

He, Yuhui ;

Chen, Xiaojun ;

Liu, Jun ;

Wang, Heyi ;

Peng, Shuming .

FUSION ENGINEERING AND DESIGN, 2013, 88 (03) :113-117

[9] Tritium fuel cycle in ITER and DEMO: Issues in handling large amount of fuel [J].

Tanabe, T. .

JOURNAL OF NUCLEAR MATERIALS, 2013, 438 :S19-S26

[10] Design of the ITER tritium plant, confinement and detritiation facilities [J].

Yoshida, H ;

Glugla, M ;

Hayashi, T ;

Lässer, R ;

Murdoch, D ;

Nishi, M ;

Haange, R .

FUSION ENGINEERING AND DESIGN, 2002, 61-62 :513-523

← 1 2 →