大尺寸NaI(Tl)生长结晶炉设计

摘要/Abstract

摘要： NaI(Tl)闪烁体因具有探测效率高、时间特性好、受温度影响小等特点而被广泛使用。为满足高探测效率的核辐射探测器需求,需要大尺寸、高能量分辨率的NaI(Tl)闪烁体。依据NaI(Tl)晶体的生长特点,本文对大尺寸NaI(Tl)生长结晶炉的主炉体、温场系统、坩埚、加热电源等部件进行研究及设计,配合大尺寸NaI(Tl)生长结晶炉控制系统,采用创新的熔生法生长出直径超300 mm的NaI(Tl)闪烁体,为后续国内生长大尺寸NaI(Tl)晶体提供了方向与解决方案。

关键词: NaI(Tl), 大尺寸, 结晶炉, 炉体设计, 控制设计

Abstract: NaI (Tl) scintillators are widely used because of their characteristics of high detection efficiency, good temporal characteristics, and minimal temperature influence. In order to meet the needs of nuclear radiation detectors with high detection efficiency, large size and high energy resolution NaI (Tl) scintillators are required. Based on the growth characteristics of NaI (Tl) crystals, the main furnace body, temperature field system, crucible, heating power supply and other components of the large size NaI (Tl) growth crystallization furnace were studied and designed. In conjunction with the control system of the large size NaI (Tl) growth crystallization furnace, innovative fusion method was used to grow NaI (Tl) scintillator materials with a diameter exceeding 300 mm, which provides direction and solutions for the subsequent growth of large size NaI (Tl) crystals in China.

Key words: NaI(Tl), large size, crystallization furnace, furnace design, controlled design

中图分类号:

TL812

闫平, 李永, 何高魁, 王强, 王国宝, 郑玉来. 大尺寸NaI(Tl)生长结晶炉设计[J]. 人工晶体学报, 2024, 53(2): 231-237.

YAN Ping, LI Yong, HE Gaokui, WANG Qiang, WANG Guobao, ZHENG Yulai. Design of Large Size NaI (Tl) Growth Crystallization Furnace[J]. JOURNAL OF SYNTHETIC CRYSTALS, 2024, 53(2): 231-237.

参考文献

[1] 杨洁男, 闻学敏, 魏钦华, 等. 红光-近红外发光卤化物闪烁晶体研究现状[J]. 发光学报, 2021, 42(11): 1661-1672.
YANG J N, WEN XUEMIN, WEI Q H, et al. Current status of red and near-infrared emission halide scintillation crystals[J]. Chinese Journal of Luminescence, 2021, 42(11):1661-1672 (in Chinese).
[2] 赵景泰, 王红, 金滕滕, 等. 闪烁晶体材料的研究进展[J]. 中国材料进展, 2010, 29(10): 40-48.
ZHAO J T, WANG H, JIN T T, et al. Research development of inorganic scintillating crystals[J]. Materials China, 2010, 29(10): 40-48 (in Chinese).
[3] 李瑞龙, 张永春, 李琦. 无机闪烁晶体碘化钠NaI(Tl)的现状与发展趋势[J]. 新材料产业, 2007(9): 68-71.
LI R L, ZHANG Y C, LI Q, et al. Current status and development trends of inorganic scintillation crystal sodium iodide NaI (Tl)[J]. Advanced Materials Industry, 2007, 1(9): 68-71 (in Chinese).
[4] 郭蕾, 张永春. 碘化钠晶体应用综述[J]. 硅酸盐通报, 2015, 34(增刊): 293-297.
GUO L, ZHANG Y C. Application review of NaI crystal[J]. Bulletin of the Chinese Ceramic Society, 2015, 34(suplyment): 293-297 (in Chinese).
[5] 杨金合, 杨坤杰, 吴麒麟, 等. 碘化钠探测器能量响应补偿的模拟研究[J]. 核电子学与探测技术, 2016, 36(10): 1062-1065.
YANG J H, YANG K J, WU Q L, et al. A simulation research of energy response compensation for NaI detector[J]. Nuclear Electronics & Detection Technology, 2016, 36(10): 1062-1065 (in Chinese).
[6] YANG C Z, LIU G X, CHEN C M, et al. Numerical simulation of radiation heat transfer characteristics of Si crystal growth furnace[J]. The Chinese J. of Process Engineering, 2018, 18(2): 280-287.
[7] LECOQ P. Development of new scintillators for medical applications[J]. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2016, 809: 130-139.
[8] 李金, 何晔, 佘建军. 全自动提拉单晶炉系统控制技术[J]. 压电与声光, 2013, 35(1): 140-143.
LI J, HE Y, SHE J J. Study on the control technique of full-Automatic crystal furnace[J]. Piezoelectrics & Acoustooptics, 2013, 35(1): 140-143 (in Chinese).
[9] 李海林, 武欢, 王瑞. 自动加料单晶炉的设计与研究[J]. 压电与声光, 2020, 42(2): 203-206.
LI H L, WU H, WANG R. Design and study of automatic feeding Czochralski crystal furnace[J]. Piezoelectrics & Acoustooptics, 2020, 42(2): 203-206 (in Chinese).
[10] 徐家跃, 申慧, 金敏, 等. 坩埚下降法在新材料探索及晶体生长中的应用[J]. 人工晶体学报, 2019, 48(6): 975-984.
XU J Y, SHEN H, JIN M, et al. Recent progress on bridgman growth of some functional crystals[J]. Journal of Synthetic Crystals, 2019, 48(6): 975-984 (in Chinese).
[11] LIU W, LU J, CHEN H, et al. Study on crystal-melt interface shape of sapphire crystal growth by the KY method[J]. Journal of Crystal Growth, 2015, 431: 15-23.
[12] CHALKLEY E. A multivariate emissivity dataset to facilitate infrared thermometry of high temperature materials[J]. Sensors ＆ Transducers, 2020, 241(2): 1-6.
[13] CABLEA M, ZAIDAT K, GAGNOUD A, et al. Multi-crystalline silicon solidification under controlled forced convection[J]. Journal of Crystal Growth, 2015: 417.
[14] ZHANG Y F, LI Z Y, MENG Q C, et al. Distribution and propagation of dislocation defects in quasi-single crystalline silicon ingots cast by the directional solidification method[J]. Solar Energy Materials and Solar Cells, 2015, 132: 1-5.
[15] INOUE M, NAKANO S, HARADA H, et al. Numerical analysis of the dislocation density in multicrystalline silicon for solar cells by the vertical Bridgman process[J]. International Journal of Photoenergy, 2013, 2013: 1-8.
[16] YU G J, HU X B, WANG X J, et al. Characterization of low angle grain boundary in large sapphire crystal grown by the Kyropoulos method[J]. Journal of Crystal Growth, 2014, 405: 59-63.
[17] 齐雪君, 张健, 陈雷, 等. 坩埚下降法生长大尺寸Bi₁₂GeO₂₀晶体的宏观缺陷[J]. 无机材料学报, 2023, 38(3): 280-287.
QI X J, ZHANG J, CHEN L, et al. Macroscopic defects of large Bi₁₂GeO₂₀ crystals grown using vertical bridgman method[J]. Journal of Inorganic Materials, 2023, 38(3): 280-287 (in Chinese).
[18] 袁军平, 陈绍兴, 黄宇亨, 等. 熔制琉璃用铂金坩埚的失效问题[J].特种铸造及有色合金, 2020, 40(6): 601-604.
YUAN J P, CHEN S X, HUANG Y H, et al. Failure of platinum crucible for melting colored glaze[J]. Special Casting & Nonferrous Alloys, 2020, 40(0): 601-604 (in Chinese).
[19] 王诗昆. 铂金坩埚保护涂层之必要性[J]. 玻璃纤维, 1993(2): 15.
WANG S K. The necessity of protective coating for platinum crucibles[J]. Fiber Glass, 1993(2): 15 (in Chinese).
[20] FUNKE C, SCHMID E, GARTNER G, et al. Impurities, inclusions, and dislocations in multicrystalline silicon grown from well-mixed and poorly mixed melts[J]. Journal of Crystal Growth, 2014, 401: 732-736.