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Screening potential of the D(d,p)T reaction in metals

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Screening potential of the D(d,p)T reaction in metals

10.6MeV/u^(84)Kr+^(27)Al碰撞中粒子发射的方位角分布和方位角关联

第十三届全国核物理大会暨第八届会员代表大会

作者： H.Yunemura A.Nakagawa j.kasagi Laboratory of Nuclear Science Tohoku UniversitySendai 982-0826Japan

The nuclear reaction rates of low energy nuclear reactions play most important role in nuclear astrophysics.A good knowledge of the low energy nuclear reactions in various conditions is essential for understanding the nuclear synthesis as well as the evolution of stars in stellar *** for light nuclear reactions at very low energies have

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高能物理与核物理 1997年第1期21卷 1-7页

作者：叶巍沈文庆马余刚冯军 T.Nakagawa K.Yuasa-Nakagawa K.Furutaka K.Matsuda Y.Futami K.Yoshida j.kasagi S.M.Lee 中国科学院上海原子核研究所上海201800 The Institute of Physical and Chemical Research RIKENWakoSaitama 351-01Japan Department of Physics Tokyo Institute of TechnologyMeguroToyko 152Japan Institute of Physics University of TsukubaTsukubaIbaraki 305Japan Laboratory of Nuclear Science Tohoku UniversitySendaiMiyagi 982Japan

研究了10.6MeV/u^(84)Kr+^(27)Al 反应中与碎片符合的轻带电粒子发射,重点研究了用二阶傅里叶级数拟合发射粒子的方位角分布和方位角关联得出的二阶各向异性系数的性质.结果证实了一个事件中的粒子都以相同方位角分布统计独立发射.发现... 详细信息

研究了10.6MeV/u^(84)Kr+^(27)Al 反应中与碎片符合的轻带电粒子发射,重点研究了用二阶傅里叶级数拟合发射粒子的方位角分布和方位角关联得出的二阶各向异性系数的性质.结果证实了一个事件中的粒子都以相同方位角分布统计独立发射.发现二阶各向异性系数同碎片的质量用微弱的依赖性,并随发射粒子质量的增加而增加.

关键词：方位角分布统计独立发射重离子反应离子碰撞

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金属环境中的低能核反应

金属环境中的低能核反应

An event mixing technique for Bose-Einstein correlations of two pions in photoproduction around 1 GeV

二〇〇九全国核反应会暨生物物理与核物理交叉前沿研讨会

作者：王铁山何庆华杨振吕会议方开洪蒙宣刘盛进赵江涛宗鹏飞 j.kasagi 兰州大学核科学与技术学院日本东北大学核物理实验室

最近几十年国内外有许多的实验发现低能核聚变在金属环境中有一系列的奇异现象。比如说,当用低能的D离子束轰击氘化金属靶的时候,会发现其中的D(d,p)T反应截面相比裸核情况下有所增大。许多科学家尝试着用不同的模型来解释这一现象,现...

最近几十年国内外有许多的实验发现低能核聚变在金属环境中有一系列的奇异现象。比如说,当用低能的D离子束轰击氘化金属靶的时候,会发现其中的D(d,p)T反应截面相比裸核情况下有所增大。许多科学家尝试着用不同的模型来解释这一现象,现在普遍的观点认为金属中的准自由电子是提高反应截面的关键因素,金属中D

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Chinese Physics C 2016年第11期40卷 67-74页

作者：何庆华 H.Fujimura H.Fukasawa R.Hashimoto Y.Honda T.Ishikawa T.Iwata S.Kaida j.kasagi A.Kawano S.Kuwasaki K.Maeda S.Masumoto M.Miyabe F.Miyahara K.Mochizuki N.Muramatsu A.Nakamura K.Nawa S.Ogushi Y.Okada Y.Onodera K.Ozawa Y.Sakamoto M.Sato H.Shimizu H.Sugai K.Suzuki Y.Tajima S.Takahashi Y.Taniguchi Y.Tsuchikawa H.Yamazaki R.Yamazaki H.Y.Yoshida Research Center for Electron Photon Science Tohoku University Institute of Fluid Physics China Academy of Engineering Physics Department of Physics Wakayama Medical University Department of Physics Yamagata University Department of Information Science Tohoku Gakuin University Department of Physics Tohoku University Department of Physics University of Tokyo Accelerator Laboratory KEK Institute of Particle and Nuclear Studies KEK Wakasa-wan Energy Research Center

We have developed an event mixing technique to observe Bose-Einstein correlations （BEC） between two identical neutral pions produced in photo-induced reactions in the non-perturbative QCD energy region. It is found that the missing-mass consistency cut and the pion-energy cut are essential for the event mixing method to effectively extract BEC observables. A Monte Carlo （MC） simulation is used to validate these constraints and confirms the efficiency of this method. Our work paves the way for similar BEC studies at lower energies where the multiplicity of emitted bosons is limited.

关键词： Bose-Einstein correlations photoproduction event mixing

π~0 Photoproduction on Deuteron for Photon Energies from 0.6 to 1.15 GeV

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原子核物理评论 2009年第S1期26卷 104-108页

作者： F.Miyahara H.Fukasawa R.Hashimoto T.Ishikawa M.Itoh T.Iwata H.Kanda j.kasagi H.Kato T.Kinoshita K.Maeda M.Matsuzawa T.Michigami K.Motiduki K.Murakami T.Nakabayashi K.Nawa T.Nomura K.Okamura H.Okamura H.Okuyama Y.Onodera Y.Saito T.Sasaki H.Shimizu T.Shishido S.Suzuki K.Suzuki Y.Tajima S.Takita T.Takahashi H.Ueno S.Yamaguchi H.Yamazaki H.Y.Yoshida Laboratory of Nuclear Science Tohoku University Mikamine 1-2-1 Cyclotoron and Radioisotope Center Tohoku University Department of Physics Yamagata University Department of Physics Tohoku University Research Center for Nuclear Physics Osaka University KEK

Differential and total cross sections of the γp→π0p and the γd→π0pn reaction were measured for photon energies between 640 and 1 150 MeV. The data have been compared with SAID and MAID model calculations. π0 photoproduction on the deuteron shows a strong suppression of the 2nd resonance which is clearly seen in the γp→π0p reaction.

关键词： pion photoproduction resonance

Error field penetration in j-TEXT tokamak based on two-fluid drift-MHD model

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Chinese Physics B 2024年第4期33卷 545-551页

作者：王文徐涛张仪 the j-TEXT team State Key Laboratory of Advanced Electromagnetic Technology International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma PhysicsSchool of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074China

An externally generated resonant magnetic perturbation can induce complex non-ideal MHD responses in their resonant *** have studied the plasma responses using Fitzpatrick's improved two-fluid model and program *** calculated the error field penetration threshold for *** addition,we find that the island width increases slightly as the error field amplitude increases when the error field amplitude is below the critical penetration ***,the island width suddenly jumps to a large value because the shielding effect of the plasma against the error field disappears after the *** scanning the natural mode frequency,we find that the shielding effect of the plasma decreases as the natural mode frequency ***,we obtain the m/n=2/1 penetration threshold scaling on density and temperature.

关键词： plasma responses drift-MHD model error field penetration

每核子100MeV以下核—核碰撞中集体流的分量的研究

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每核子100MeV以下核—核碰撞中集体流的分量的研究

Storing Freshwater Versus Storing Electricity in Power Systems with High Freshwater Electric Demand

第八届全国核物理会议

作者：沈文庆 j.Peter G.Bizard D.Cussol R.Brou M.Louvel j.P.Patry R.Regimabart j.C.Steckmeyer j.P.Sullivan B.Tamain E．Crema H.Doubre K．Hagel 靳根明 A.Peghaire F．Saint-Laurent Y．Cassagnou R．Legrain C．Le．Brun E．Rosato R．Mac Grath S．G．jeong S．M．Lee Y．Nagashima T．Nakagawa M．Ogihara j.kasagi T．Motobayashi 中国科学院上海原子核研究所 LPC CaenISMRAFrance GANIL CaenFrance CEN SaclayFrance LPN NantesFrance Univ.di Napoli Italy Suny Stony BrookUSA Inst.of Physics Univ.of TsukubaJapan Dep.of Physics Tokyo Inst.of TechnologyJapan

用4π探测器 MUR 和 TONNEAU 在 CANIL(法国)测量了 E=25,36,45,55,65,85, MeV/UAl(Ar,x)和 E=36,65MeV/uNi(Ar,x)核反应中集体流的横向和径向分量,用 Monte-Carlo 模拟及实验数据比较了决定反应平面的两种方法,即 Danielewicz 方法和...

用4π探测器 MUR 和 TONNEAU 在 CANIL(法国)测量了 E=25,36,45,55,65,85, MeV/UAl(Ar,x)和 E=36,65MeV/uNi(Ar,x)核反应中集体流的横向和径向分量,用 Monte-Carlo 模拟及实验数据比较了决定反应平面的两种方法,即 Danielewicz 方法和类弹碎片方法的优劣,发现就是对于周边碰撞,Danielewicz

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journal of Modern Power Systems and Clean Energy 2024年第2期12卷 323-333页

作者： Mubarak j.Al-Mubarak Antonio j.Conejo Department of Electrical and Computer Engineering The Ohio State UniversityColumbusOHUSA Department of Electrical Engineering Kuwait UniversityP.O.Box 5969Safat 13060Kuwait Department of Integrated Systems Engineering and the Department of Electrical and Computer Engineering The Ohio State UniversityColumbusOH 43210USA IEEE

We consider a power system whose electric demand pertaining to freshwater production is high(high freshwater electric demand),as in the Middle East,and investigate the tradeoff of storing freshwater in tanks versus storing electricity in batteries at the day-ahead operation *** storing freshwater and storing electricity increase the actual electric demand at valley hours and decrease it at peak hours,which is generally beneficial in term of cost and ***,to what extent?We analyze this question considering three power systems with different generation-mix configurations,i.e.,a thermal-dominated mix,a renewable-dominated one,and a fully renewable *** generation-mix configurations are inspired by how power systems may evolve in different countries in the Middle *** production uncertainty is compactly modeled using chance *** draw conclusions on how both storage facilities(freshwater and electricity)complement each other to render an optimal operation of the power system.

关键词： Power system operation freshwater production and transportation coordination day-ahead scheduling

Analysis of ancient mass extinction recoveries in marine environments: generating strategies for managing outcomes of the current mass extinction

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National Science Review 2024年第1期11卷 8-10页

作者： David j.Bottjer Department of Earth Sciences University of Southern California

The defining feature of a mass extinction and its associated recovery is the global amount of extinction that occurred[1]. However, there is finer-scale detail to the story, as seen in the ongoing modern mass extinction(the sixth mass extinction), which exhibits variable effects among marine ecosystems and environments, and hence geographic areas [1].

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