聚变反应速率测量光学系统设计

闫亚东; 何俊华

doi:10.3788/OPE.20122011.2389

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聚变反应速率测量光学系统设计

现代应用光学 | 更新时间：2020-08-12

- 聚变反应速率测量光学系统设计
- Design of optical system for fusion reaction-rate measurement
- 光学精密工程 2012年20卷第11期页码：2389-2394
- 作者机构：
  
  中国科学院西安光学精密机械研究所,陕西西安,710119
- 作者简介：
- 基金信息：
  
  国家教育部博士点(西部)基金资助项目(No.200929441213)()
- DOI：10.3788/OPE.20122011.2389
  中图分类号： TL62;TH703
- 收稿日期：2012-07-04，
  
  修回日期：2012-09-25，
  
  纸质出版日期：2012-11-10
- 稿件说明：
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闫亚东, 何俊华. 聚变反应速率测量光学系统设计[J]. 光学精密工程, 2012,20(11): 2389-2394

YAN Ya-dong, HE Jun-hua. Design of optical system for fusion reaction-rate measurement[J]. Editorial Office of Optics and Precision Engineering, 2012,20(11): 2389-2394
闫亚东, 何俊华. 聚变反应速率测量光学系统设计[J]. 光学精密工程, 2012,20(11): 2389-2394 DOI： 10.3788/OPE.20122011.2389.

YAN Ya-dong, HE Jun-hua. Design of optical system for fusion reaction-rate measurement[J]. Editorial Office of Optics and Precision Engineering, 2012,20(11): 2389-2394 DOI： 10.3788/OPE.20122011.2389.

摘要

基于塑料闪烁体和条纹相机设计了聚变反应速率测量系统

论述了测量光学系统的工作原理和设计方法。通过设置防辐射石英玻璃窗

防止了光学元件受强X射线辐射而变暗;采用晶体等紫外透过率高的光学材料

满足了光学系统对透过率的要求;光学系统像面与条纹相机的阴极面直接对接

解决了条纹相机孔径不匹配的问题;最后在一次像面设置场镜

大幅缩小了光学元件的口径。设计的光学系统总长为2 660 mm

放大倍率为1/3

像方

/#数达到0.667

系统透过率达到67％

时间弥散小于7.3 ps。这些结果能够适应不同中子产额的实验需求

在激光打靶实验中取得了较好的实验效果。

Abstract

Based on a plastic scintillator and an optic streak camera

a measuring system for fusion reaction-rate was designed

then the working princile and design method of the measuring system were addressed in detail. A piece of fused silica window was set just behind the plastic scintillator to protect optical elements from darkening after a long time exposure in scatted X rays and the ultraviolet crystals and other ultraviolet glass were selected to ensure the high system transmission. Furthermore

the image plane of the optical system was put onto a photocathode of the streak camera directly to remove the aperture non-matching of input optic system of the streak camera. Finally

a field mirror was put on the first image plane to reduce the max diameter of optical element from 160 mm to 120 mm. The designed optical system has a total length of 2 660 mm

magnification of 3∶1 and its final lens is

/0.667 and transmission is 67%. Moreover

the time dispersion of the optical system is less than 7.3 ps. These results meet the experimental needs of different neutron yields and good experimental results have been obtained in a laser targeting experiment.

关键词

Keywords

references

LERCHE R A, CABLE M D. Fusion reaction-rate measurements-Nova and NIF[S]. ICF Quarterly Report, 1996,6(3):115-122.[2] STOECKL C, GLEBOV V Y, ROBERTS S, et al.. A TIM-based neutron temporal diagnostic for cryogenic experiments on OMEGA[J]. LLE Review, 2004, 92:156-160.[3] LERCHE R A, PHILLION D W, TIETBOHL G L. 25ps neutron detector for measuring ICF-target burn history. Presented at the 10th Topical Conference on High-Temperature Plasma Diagnostics, Rochester, NY, 1994,5:8-12.[4] Stoeckl S, GLEBOV V Y, ZUEGEL J D, et al.. Wide-dynamic-range neutron bang time detector on OMEGA[J]. Review of Scientific Instruments, 2002, 73(11):3796-3800.[5] LERCHE R A, CABLE M D, PHILLION D W, et al.. Fast Pb-glass neutron-to-light converter for ICF target burn history measurements[J]. Review of Scientific Instruments, 1990, 61(10):3187-3189.[6] MICHAEL D C, HATCHETT S P, NELSON M B. Neutron spectroscopy with a large neutron time-of-flight detector array(LaNSA)[J]. Review of Scientific Instruments, 1992, 63(10):4823-4827.[7] GARCONNET J P, BOURGADE J L, NAIL M, et al.. Ultrafast photoconductive detectors for burn time and bang time measurements on Phebus[J]. Review of Scientific Instruments, 1992, 63(10):4871-4873.[8] MIYANAGA N, OHBA N, FUJIMOTO K. Fiber scintillator/streak camera detector for burn history measurement in inertial confinement fusion experiment[J]. Review of Scientific Instruments, 1997, 68(1):621-623.[9] STOECKL C, GLEBOV V Y, ROBERTS S, et al.. Ten-inch manipulator-based neutron temporal diagnostic for cryogenic experiments on OMEGA[J]. Review of Scientific Instruments, 2003, 71(3):1713-1716.[10] LERCHE R A, PHILLION D W, TIETBOHL G L. Neutron detector for fusion reaction-rate measurements, AIP Conf. Proc., 1994, 318:251-259.[11] 彭晓世,王峰,唐道润,等. 惯性约束聚变反应速率测量[J]. 强激光与粒子束,2011,23(8):2197-2200. PENG X SH,WANG F, TANG D R,et al.. Measurement of inertial confinement fusion reaction rate[J]. High Power and Particle Beams, 2011, 23(8):2197-2200. (in Chinese)[12] 彭晓世,王峰,唐道润,等. 聚变反应历程测量系统研制及应用[J]. 光学学报,2011,31(1):129-134. PENG X SH,WANG F, TANG D R,et al.. Development and application of a system for fusion reaction history measurement[J]. Acta Optica Sinica, 2011,31(1):129-134. (in Chinese)

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