In this study, neutron and gamma radiation produced during the ITER tokamak operation including the nuclear heating were studied. This is an approach for analyzing the neutron flux by their contributions. The calculat...In this study, neutron and gamma radiation produced during the ITER tokamak operation including the nuclear heating were studied. This is an approach for analyzing the neutron flux by their contributions. The calculations were conducted using Geant4 Monte Carlo method based on the ITER simplified geometry. It was found that for present design of ITER, only 0.1% of neutrons is contributed by photonuclear interaction while, 33% belongs to the (n, xn) reaction. Finally by adding Beryllium element in the coolant leading to the increase in the neutron flux by increasing the rate of (γ, n) reactions was calculated.展开更多
In this study, neutron and gamma radiation produced during the ITER tokamak operation including the nuclear heating were studied. This is an approach for analyzing the neutron flux by their contributions. The calculat...In this study, neutron and gamma radiation produced during the ITER tokamak operation including the nuclear heating were studied. This is an approach for analyzing the neutron flux by their contributions. The calculations were conducted using Geant4 Monte Carlo method based on the ITER simplified geometry. It was found that for present design of ITER, only 0.1% of neutrons is contributed by photonuclear interaction while, 33% belongs to the (n, xn) reaction. Finally by adding Beryllium element in the coolant leading to the increase in the neutron flux by increasing the rate of (γ, n) reactions was calculated.展开更多
成长记录是记录学生学习情况、学生作品、学生活动的一种评价依据,是见证学生成长过程的一种重要形式。但在以往的教学过程中,教师往往只是借助存放到档案中的成绩单来记下学生们考试成绩的起落,以此来说明学生们每段时间的学习情况。...成长记录是记录学生学习情况、学生作品、学生活动的一种评价依据,是见证学生成长过程的一种重要形式。但在以往的教学过程中,教师往往只是借助存放到档案中的成绩单来记下学生们考试成绩的起落,以此来说明学生们每段时间的学习情况。显然单纯的考试成绩并不能完整详细地反映学生们校内外成长活动的情况。因此,随着信息时代的到来和发展,微信、美拍、天天P图等APP和Power Poi nt等办公软件在人们的生活工作中被普遍应用,教师可以用这些信息手段更加直观地帮助学生们随时随地记录他们的成长过程,进而为评价学生提供依据。展开更多
文摘In this study, neutron and gamma radiation produced during the ITER tokamak operation including the nuclear heating were studied. This is an approach for analyzing the neutron flux by their contributions. The calculations were conducted using Geant4 Monte Carlo method based on the ITER simplified geometry. It was found that for present design of ITER, only 0.1% of neutrons is contributed by photonuclear interaction while, 33% belongs to the (n, xn) reaction. Finally by adding Beryllium element in the coolant leading to the increase in the neutron flux by increasing the rate of (γ, n) reactions was calculated.
文摘In this study, neutron and gamma radiation produced during the ITER tokamak operation including the nuclear heating were studied. This is an approach for analyzing the neutron flux by their contributions. The calculations were conducted using Geant4 Monte Carlo method based on the ITER simplified geometry. It was found that for present design of ITER, only 0.1% of neutrons is contributed by photonuclear interaction while, 33% belongs to the (n, xn) reaction. Finally by adding Beryllium element in the coolant leading to the increase in the neutron flux by increasing the rate of (γ, n) reactions was calculated.
文摘成长记录是记录学生学习情况、学生作品、学生活动的一种评价依据,是见证学生成长过程的一种重要形式。但在以往的教学过程中,教师往往只是借助存放到档案中的成绩单来记下学生们考试成绩的起落,以此来说明学生们每段时间的学习情况。显然单纯的考试成绩并不能完整详细地反映学生们校内外成长活动的情况。因此,随着信息时代的到来和发展,微信、美拍、天天P图等APP和Power Poi nt等办公软件在人们的生活工作中被普遍应用,教师可以用这些信息手段更加直观地帮助学生们随时随地记录他们的成长过程,进而为评价学生提供依据。