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22篇 您的检索式:作者名="M.Mihara"
    题名 作者 年代 出处 被引量
1Intercellular adhesion molecule‐1 on synovial cells attenuated interleukin‐6‐induced inhibition of osteoclastogenesis induced by receptor activator for nuclear factor κB ligand显示文摘M.Suzuki M.Hashizume H.Yoshida M.Shiina M.Mihara 2010Clinical & Experimental Immunology2010,,1:1
2β-NMR和β-NQR谱仪的建立显示文摘介绍了在中国原子能科学研究院建成的我国第一台 β NMR及 β NQR谱仪 .进行了12 B的寿命、磁矩和极化度的测量 。周冬梅 郑永男 朱佳政 徐勇军 杜恩鹏 王志强 袁大庆 骆海龙 容超凡 M.Mihara M.Fukuda K.Matsuta T.Minamisono 朱升云 2004高能物理与核物理2004,28,3:1
3Void Evolution inα-Al_(2)O_(3)Irradiated by En≥1 MeV Neutrons of 3×10^(20)cm^(-2)显示文摘The void evolution inα-Al2O3 irradiated by En≥1 MeV neutrons of 3×10^(20)cm^(-2) and post-annealed from 100°C to 1050°C has been studied by a positron annihilation lifetime technique.The void nucleation starts at 500°C.In the annealing temperature region from 550℃ to 750℃,the radius of created voids keeps constant at a value of about 0.29 nm and the number of voids increases with increasing temperature.Afterwards,the radius of voids increases rapidly with the increasing annealing temperature and reaches 1.21nm at 1050℃.徐勇军 范志国 罗起 王荣 朱佳政 T.Iwata T.Minamisono K.Matsuta M.Fukuda M.Mihara 朱升云 2001Chinese Physics Letters2001,18,6:0
485 MeV ^(19)F离子辐照α-Al_2O_3热退火产生的空洞研究显示文摘:采用正电子湮没寿命技术研究了注量为 5 2 8× 10 16 cm- 2 的 85MeV 19F离子辐照后α Al2 O3热退火产生的空洞。实验结果表明 :辐照后的α Al2 O3经 4 50℃退火开始出现空洞 ;550~ 750℃时 ,空洞半径达到 0 37nm ,且其大小不变而浓度则随温度迅速增加 ;高于 80 0℃ ,退火温度升高 ,空洞增大 ;10 50℃退火 ,形成了半径为 1 0王荣 徐勇军 朱佳政 朱升云 T.Iwata K.Matsuta M.Fukuda M.Mihara T.Minamisono 2001原子能科学技术2001,35,4:0
5^(84,86)Zr高自旋转动态g-因子测量显示文摘A~80区中重核核结构复杂,且随质子数、中子数和角动量变化,该区核的核结构研究是当前原子核高自旋态谱学研究领域的中心课题之一。核微观组态、单粒子和集体运动等核结构可以通过能级和寿命测量来研究,但要作出肯定的结论和深入的了解需要测量原子核的g-因子。A~80区核结构的一个重要特征是g9/2质子与(或)中子折对顺排。g-因子对质子与(或)中子折对顺排特别灵敏,由g-因子测量可对粒子折对顺排作出肯定的判断。本工作通过A~80区Z=40的Zr同位素的高自旋态g-因子测量研究核结构随中子数和角动量变化。 采用瞬态场离子注入扰动角分布方法测量了84Zr和86Zr的高自旋转动的态g-因子。高自旋态由85Ni(28Si,2p)84Zr和58Ni(32S,4p)86Zr反应产生和布居。K.Mastuta M.Fukuda M.Mihara T.Minamisono 罗起 王勇刚 高早春 范志国 徐勇军 王荣 朱佳政 李广生 吴晓光 温书贤 许国基 张锡珍 陈永寿 朱升云 2001中国原子能科学研究院年报2001,,1:0
6重离子辐照模拟的实验验证及α-Al_2O_3空洞产生研究显示文摘理论上由于重离子和中子都通过碰撞产生缺陷,在相同等效剂量条件下它们产生的缺陷相同。重离子的损伤率较中子高105~107,可用重离子辐照模拟高剂量中子辐照。现在,实验上采用重离子辐照模拟来研究现有中子源难以产生的高剂量中于辐照引起的辐照效应,但是还没有实验依据证明相同剂量条件下重离子和中子产生的缺陷相同。此外,理论预言在金属和绝缘材料中高于一定剂量的粒子辐照后,经过一定温度退火。T.Iwata T.Minamisono K.Matsuta M.Fukuda M.Mihara 王荣 徐勇军 朱佳政 郑永男 周冬梅 朱升云 2001中国原子能科学研究院年报2001,,1:0
7Magnetic moment measurement of β-emitter ^(12)N显示文摘The magnetic moment of ^12N(I^π= +, T /2=11 ms) has been measured by the β-NMR method. The experiment was performed with the β-NMR and β-NQR facilities at the 5 MV Van de Graaff accelerator at Osaka University, Japan.ZHENGYong-nan ZHOUDong-mei DUEn-peng YUANDa-qing ZUOYi WANGZhi-qiang LUOHai-long M.Mihara M.Fukuda K.Matsuta T.Minamisono ZHUSheng-yun 2003Annual Report of China Institute of Atomic Energy2003,,1:0
885MeV^(19)F重离子辐照α-Al_2 O_3的空洞研究(英文)显示文摘5 .2 8× 10 16cm-2 85MeV19F辐照的α Al2 O3 中 ,在其热退火过程中采用正电子湮没方法首次观察到了空洞 .4 5 0℃退火开始产生空洞 ,5 5 0℃到 75 0℃空洞半径约为 0 2 9nm不随温度变化 ,但浓度随温度增加而增加 ;高于 75 0℃ ,空洞半径随温度升高迅速增大 ,10 5 0℃时空洞的半径达 1.10nm .王荣 徐勇军 朱佳政 T.Iwata 郑永男 周冬梅 K.Matsuta M.Fukuda M.Mihara T.Minamisono 朱升云 2003高能物理与核物理2003,27,7:0
9Development of β-NMR and β-NQR显示文摘The β-NMR (nuclear magnetic resonance) and β-NQR (nuclear quadrupole resonance) technique and its ex-perimental set-up have been developed for the first time in China. The lifetime, magnetic moment and spin polarization of ^12B were determ/ned. The experimental results show the reliability of this newly developed β-NMR and β-NQR set-up.周冬梅 郑永男 朱佳政 徐勇军 杜恩鹏 王志强 骆海龙 袁大庆 容超凡 M.Mihara M.Fukuda K.Matsuta T.Minamisono 朱升云 2003Chinese Physics Letters2003,20,10:0
10β核磁共振和β核四极共振谱仪显示文摘为了开展核物理、粒子物理和凝聚态物理方面的研究 ,在中国原子能科学研究院建成了 1台 β核磁共振及 β核四极共振谱仪。利用该谱仪精确测量了12 B的极化度和12 B基态磁矩 ,所测量的12 B在Cu中的极化度为 1 1 4%± 0 6% ,12 B磁矩 μ =1 0 0 0 2± 0 0 0 2 8nm。实验应用证实该谱仪性能可靠。周冬梅 郑永男 朱佳政 徐勇军 杜恩鹏 王志强 骆海龙 袁大庆 容超凡 M.Mihara M.Fukuda K.Matsuta T.Minamisono 朱升云 2004原子能科学技术2004,38,2:0
11β-NMR和β-NQR装置的建立显示文摘β-NMR和β-NQR是利用不稳定β放射性核作探针的核磁共振和核四极共振技术,是核物理、粒子物理和凝聚态物理研究中不可缺少的实验手段。周冬梅 朱佳政 郑永男 徐勇军 杜恩鹏 王志强 骆海龙 袁大庆 容超凡 M.Mihara M,Fukuda K.Matsuta T.Minamisono 朱升云 2002中国原子能科学研究院年报2002,,1:0
12β-放射性核^(12)B的磁矩测量显示文摘采用β-NMR方法测量了^(12)B(I~π=1^+,T_(1/2)=20.2 ms)的磁矩,实验测量在新建的β-NMR和β-NQR装置上进行。 ^(12)B(I~π=1^+,T_(1/2)=20.2ms)通过“B(d,p)‘’B核反应产生,靶为天然 B靶(^(11)B的同位素丰度是0.802),B真空蒸镀在0.5 mm厚的Ta基体上,靶厚250 ug/cm^2。入射d束能量为1.5 MeV。周冬梅 郑永男 朱佳政 徐勇军 杜恩鹏 王志强 骆海龙 袁大庆 容超凡 许国基 M.Mihara M Fukuda K.Matsuta T.Minamisono 朱升云 2002中国原子能科学研究院年报2002,,1:0
13^(12)B在Cu中的极化度测量显示文摘β-放射性核的极化以及极化的保持在β-NMR和β-NQR实验中非常重要。本工作采用β-NMR方法测量了^(12)B在Cu中的极化度,实验测量在新建的β-NMR和β-NQR装置进行。 ^(12)B(I~π=1^+,T_(1/2) =20.2 ms)通过^(11)B(d,p)^(12)B核反应产生,靶为天然B靶(^(11)周冬梅 郑永男 朱佳政 徐勇军 杜恩鹏 王志强 骆海龙 袁大庆 容超凡 许国基 M.Mihara M Fukuda K.Matsuta T.Minamisono 朱升云 2002中国原子能科学研究院年报2002,,1:0
14^(28)P的磁矩测量显示文摘β放射性核素^28P的单质子分离能为2.065MeV,最外一个质子处在2s1/2轨道。目前无论从截面测量实验还是理论研究结果,均表明^28P有质子晕结构。但到现在为止,还没有人给出^28P核素的磁矩和电四极矩值。而磁矩和电四极矩值在确定晕结构核方面是非常重要的实验数据。周冬梅 郑永男 袁大庆 左翼 刘猛 范平 M.Mihara M Fukuda K.Matsuta T.Minamisono T.Nagatomo S.Momota A.Kitagawa T.Izumikawa 朱升云 2006中国原子能科学研究院年报2006,,1:0
15g-factor Measurements of Rotational States in ^(84,86)Zr显示文摘1 IntroductionShape co-existence, softness, and dependence of spin and particle numbers characterize the nuclear structure of transitional nuclei in the mass 80-90 region. The nuclear structure has been understood far from satisfaction in this region. Interest stems from the alignments of the protons and neutrons in the same high-j g9/2 orbit that play an important role in the nuclear structure of transitional nuclei. g-factors are the crucial data to examine the alignment. A variety of spin dependence of g-factors has been proposed from the alignment response of the quasi-protons and neutrons to the collective rotation ofK.Matsuta M.Fukuda M.Mihara T.Minamisono 2001Annual Report of China Institute of Atomic Energy2001,,0:0
16On-line Time Differential Perturbed Angular Correlation With Light Probe Nucleus ^(19)F显示文摘1 IntroductionThe time differential perturbed angular correlation(TDPAC) has been known for about 50 years. So far, no on-line TDPAC(TDPACOL) has been performed because of mother nuclei all having a rather long lifetime. In addition, almost all TDPAC experiments have been conducted using probe nuclei with a mass heavier than 40.The present work is motivated to develop a TDPACOL technique with light probe nuclei. The key point for it is to have short-lived mother nuclei with a lifetime of, say, several ten seconds. We have found a suitable mother nucleus 19O having a half-life of 26.9 s and decaying to the daughterT.Minamisono K.Matsuta M.Fukuda M.Mihara WANGZhi-qiang K.Sato H.Akai 2001Annual Report of China Institute of Atomic Energy2001,,0:0
17短寿命β-放射性核^(12)B磁矩精确测量显示文摘通过对核反应11B(d,p)12B的入射束流能量和12B反冲核的反冲角度的选择产生极化的β放射性核12B(Iπ=1+,T1/2=20.18ms).在中国第一台β-NMR和β-NQR谱议上,我们利用β-NMR技术测量了短寿命核12B的磁矩,通过精确的奈特位移修正后,得到12B的核磁矩μ=(0.99993±0.00048)nm,g因子g=(0.99993±0.00048).周冬梅 郑永男 杜恩鹏 徐勇军 朱佳政 袁大庆 王志强 骆海龙 左翼 马瑞刚 段晓 M.Mihara M.Fukuda K.Matsuta T.Minamisono 朱升云 2004中国科学(G辑)2004,34,4:0
18Magnetic Moment of β-emitter ^(12)B显示文摘The magnetic moment of 12B(Iπ=1+, T1/2=20.2 ms) has been measured by the β-NMR method. Theexperiment was performed with our newly built β-NMR and β-NQR facilities. The nuclei 12B (Iπ=1+, T1/2=20.2 ms) were produced through the 11B(d, p) 12B reaction with adeuteron beam from the 2×1.7 MV tandem accelerator.The target was the natural B targetM.Mihara M.Fukuda K.Matsuta T. Minamisono 2002Annual Report of China Institute of Atomic Energy2002,,0:0
19The ab initio Calculation of Electric Field Gradient at the Site of P Impurity in α-Al_(3)O_(2)显示文摘An ab initio calculation of the electric-field gradient(EFG)at the site of a phosphorous impurity substituting an Al atom in α-Al_(3)O_(2) is carried out using the WIEN2k code with the full-potential linearized augmented plane wave plus local orbital method(LAPW+lo)in the frame of density functional theory.The atomic lattice relaxations caused by the implanted impurities were calculated for two different charged states to well describe the electronic structure of the doped system.The EFG at the site of the phosphorous impurity in the charged supercell calculated with the exchange-correlation potential of the Wu-Cohen generalized gradient approximation(WC-GGA)is 0.573×10^(21) V/m^(2).Then,the nuclear quadrupole moment of the I=3 state in ^(28)P is deduced to be 137 mb from the quadrupole interaction frequency of 190 kHz measured recently by theβ-NQR method.张乔丽 袁大庆 张焕乔 范平 左翼 郑永男 K.Masuta M.Fukuda M.Mihara T.Minamisono A.Kitagawa 朱升云 2012Chinese Physics Letters2012,29,9:0
20Polarization of ^(12)B in Cu显示文摘The polarization of β-emitting nuclei and its preservation are very important in the β-NMR 和β-NQR experiments. The present work was motivated to measure the polarization of 12B by β-NMR. Theexperiment was carried out by using our newly built β-NMR and β -NQR facilities. The nuclei 12B (Iπ=1+, T1/2=20.2 ms) were produced through the 11B(d, p) 12B reaction with adeuteron beam from the 2×1.7 MV tandem accelerator. The target was the natural B targetM.Mihara M.Fukuda K.Matsuta T.Minamisono 2002Annual Report of China Institute of Atomic Energy2002,,0:0
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