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化学 高校生

RHEED法の原理と得られる7つの情報が、この英文に書かれているみたいなのですが、よく分かりません。 分かる方助けてください!🙇‍♂️

INTRODUCTION Reection high-energy electron diHiraction (RHEED) uses a Rnely collimated electron beam with energy of 10-100 keV. The beam irradiates a sample surface with gazing incidence to obtain forward scattered difraction patterms. RHEED enables us to analyze structures of crystal surfaces at atomic levels and also to in situ monitor growth processes of thin films (mo、1988: Ichimiya and Cohen、2004: Peng et al.. 2011). From the arrangement。intensity and profile of the dilraction spots in RHEED patterns as described below in detail、 one can obtain various kinds of information: (1) the periodicity (unit cells) in atomic arrangements. (2) flat- ness of surfaces. (3) sizes of grains/domains of surface structures and microcrystals grown on the surface. (3) epitaxial relation between the grown flms/islands with respect to the substrate. (5) parameters character- izing structural phase transitions. (6) individual atomic positions in the unit cells. and (7) growth styles of thin films and numbers of atomic layers grown. The most important advantages of the method are that it is quite easy to install the RHEED apparatus in Yarious types of vacuum chambers without interfering with other components of apparatuses and to do real- time monitoring during thin-Rlm growths. Because of these advantages.RHEED is nowwidelyusednotonlyin research Iabs of surfaces and thin fims. but also in device production processes in industry Low-energy electron diiraction (LEED、see article Low-ENNERcy ErecroN DirscmoN)。 in which an electron beam of 10-100 eV in energy is irradiated onto a sample surface with nearly normal incidence to obtain back- scattered difraction patterns. is also widely used to analyze the atomic structures of crystal surfaces. Since one has to make the sample face directly to the LEED

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英語 高校生

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m るる PG 読解問題にアプローチ en』 ao 20 文と文をつなぐ語を意識して英文を読もう。 Achange in the worids awareness, or kowiedge about difierences in cnture。 js making = adiOerence in the way people visit clher Iands。 全 SCber wonds ~ changing. Alot ofeoncerned people have jon enyironmental problems and other populaticns in the worid。 These gronps begn to cooperate with one another and with communities throoghont the worid。 They crganized educational groups and friendship tonrs. And they 全Gght about ya newy kind oftoorism. Ture Shaquielle lef her home and stayed in Kenya fr two menths。 When she returned 16 Mapchesier she prepared food for her famiy in the KKenyan way, She brought home a dress Hike one that her greatgreatgrandmother it have worn She didnt bring home many souvenira but she did bring home stariee about where her "encestors hed once lied. Ture went 語arch orher cultural background and ond a new understanding ft 皇証 stories about the animals cp the broad grassy lains and the thick fresta made Kenya real tober family and friends. Touriets ike ror iit commniies spd 1ands Ror new reasons Tbese travelsre are な reeponeible tonrists. They want to 本Po know the people and enjoy the land。 They act respecdfully Some cfthe tonrs ane neture toors。 Peopie cn these toors earn abont the nyironment。 Tbey want to see the wildHie 一both the animals and the plante in their netural enwironments。 They earn abont the 1and and en)oy it beauty,but they are carehul not to destroy anything = Bythe1980sumanyortheresponsiie tourits aleo became enyironmental tourists. Thewe eople traveled not oniy to enioy the Iand and peonler bt aleo to belp saye the enwironment snd to work orglobal peace. Their goalwas harmony between all eople and tbe Iand. Theresponeiietouristaand he eyironmental touritebecame intereeted in the Riaces hey hmd vigited. These peonle were interested im eoology and cared for the natoral state ofthe enyironment。 They began tolook rways to help save the enyironment so they joined spedal tours. AtRmtthe money they peid fr the rips helped pay br prolecHon cfthe enyironment ィ These groups worked hard: or erample, a group of city office workers "got their hands ゃ dirty They built a new *trailin an arem where rain was washing eway the soil on the side cf the mountain. They carried stones to strengthen the steep hill and to make steps in some areas. They plapted native bushes to bold back the "mud in the rainy season。 They ere ideml eeo-tonriste. ezm "anemwtor = "re人半"med=電 Wa ee e んara edg ん 3E 630o3 anivELa. sart Ceesee he

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