Beta Partiklers Afbøjning I Magnetfelt Essay

1213 words - 5 pages

Fysikrapport nr. 9Beta-partiklers afbøjning i magnetfelt.Øvelsen er udført af X & andre på 3FY holdet.Øvelsen er udført Onsdag d. 23 Februar 1994.Rapporten er skrevet af XBeta-partiklers afbøjning i magnetfelt.Formål: At undersøge det kontinuerte beta-spektrum fra 90Sr. Herunder studeres også relativistiske effekter, dvs. effekter der opstår pga. elektronernes høje hastigheder.Teori: Når en ladet partikel f.eks. en -partikel bevæger sig vinkelret på et homogentmagnetfelt, vil den udføre en cirkelbevægelse med konstant fart. Cirklens radius afhænger af -partiklens energi og styrken af magnetfeltet. Kendes B-feltets størrelse og radius i cirkelbanen, kan man således bestemme -partiklens energi. Følgende formel er gældende for ovenstående.e * v * B = m * v2 / re er -partiklens ladning, v er partiklens fart, B er magnetfeltets fluxtæthed og m er -partiklens masse. I den anvendte forsøgs opstilling er r=29±1. Denne formel gælder også relativistisk, altså når v kommer tæt på c.Når man arbejder med relativistiske hastigheder sker der forskellige ting vi ikke kender fra hverdagen. Bl.a. kender vi fra relativitetsteorien følgende formel.m(v) = m0 / (1 - v2/c2)½m0 er massen af -partiklen og m(v) er massen når den har farten v. Desuden siger relativitetsteorien, at -partiklernes totale energi Etot, kan skrives som summen af partiklens kinetiske energi Ekin og dens hvileenergi Ehvile. Dette er udtrykt i nedenstående formel.Etot = Ekin + Ehvile = m(v) * c2 = Ekin + m0 * c2Ekin = Etot - m0 * c2 = (m(v) - m0) * c2Som det ses ovenfor kan Ekin findes ved omskrivning, og udregnes hvis v er kendt.v/c kan beregnes ud fra nedenstående formel og dermed kan v altså findes.(v/c)2 = (e * B * r / c)2 / m02 + (e * B * r / c)2Alle størrelser i formlen er kendte i dette forsøg.Opstilling: Se bilag nr. 1.Apparatur: Strømforsyning (max. 5A), elektromagnet med flade polsko, 2 stk. 600 vindinger spoler, plexiglasholder, Beta-kilde, Hall-sonde, GM-rør og GM-tæller; 2 DMM.Udførelse: Forsøget stilles op som beskrevet. Strømforsyningen tilsluttes elektromagneten med polsko. De to spoler forbindes serielt, så deres magnetfelter kommer til at vende samme vej. I samme kredsløb kobles et DMM, der måler strømstyrken.-kilden skrues fast i plexiglasholderen, der anbringes mellem de to polsko. Et GM-rør sættes helt hen til udskæringen af kvart-cirklen, så det kan måle alle partiklerne. Ind i magnetfeltet stikkes en Hall-sonde, som måler magnetfeltets fluxtæthed. Hall-sonden er til sluttet et Hall-meter, som kan vise B-feltets styrke v.hj. af et DMM.Forsøges udføres så ved at sende en strøm...

Find Another Essay On Beta-partiklers afbøjning i magnetfelt

charant Creon as the Main Character of Antigone

1231 words - 5 pages Creon as the Main Character of Antigone   Throughout the Greek play Antigone by Sophocles, there exists a dispute as to who should receive the designation of main character. Antigone, the daughter of the cursed King Oedipus, as well as Creon, stately king of Thebes, both appear as the key figures in this historic play. I believe that Creon, king of Thebes, should be considered the main character in this work of Greek theater. Three

Free Macbeth Essays: Sleep and Sleeplessness

525 words - 2 pages on the country of Scotland. Lady Macbeth begins with an unrecognizable conscience. She explains to Macbeth that if she said she would kill her own child, she would rather do the deed than break her word to do so. As the play continues, however, Lady Macbeth begins to develop a conscience. After placing the daggers for Duncan's murder, she makes an excuse for not killing Duncan herself: "Had he not resembled / My father as he slept, I had

Life Outside of Life in Hawthorne’s Wakefield

898 words - 4 pages Life Outside of Life in Hawthorne’s Wakefield   Efficacy lies at the heart of human desires for immortality. Characters throughout literature and art are depicted as wanting to step aside and see what their world would be like without their individual contributions. The literary classic A Christmas Carol and the more recent, but ageless, film It’s Wonderful Life both use outside influences (three ghosts and Clarence the Angel

Essay on Identity in Song of Solomon

2172 words - 9 pages from an intolerant world, fearful of what they do not understand. She had visions, and as she explains, "I never told anyone around me about these strange things. It was just too different" (Hurston 597). Both carried with them, skeletons from the past and in Hurston's own words, " I was old before my time with grief of loss, of failure, of remorse of failure" (Hurston 618).   Pilate, like Hurston, loves to sing and seems to have acquired

The Character of Oedipus in Oedipus and The Infernal Machine

904 words - 4 pages search. Creon describes the area in which the King Laius was slain, yet Oedipus seems to realize nothing and instead, continu es to demand the identity of Laius's killer. Oedipus. . . .Whom did I murder? Through a blunder, a pure blunder, an old man on the road- a stranger. Tiresias. Oedipus, your blunder killed the husband of Jocasta, King Laius. Oedipus. The two of you. Now I see the shape of your plot . . . and it's worse than I

Okonkwo's Tragic Flaws in Chinua Achebe's Things Fall Apart

3121 words - 12 pages        An increasing amount of contemporary literature traces its origins back to the early works of Greece. For ages, humans have fascinated themselves with the impossible notion of perfection. Unrealistic expectations placed on those who were thought to be the noblest or most honorable individuals have repeatedly led to disappointment and frustration, either on the part of those particular individuals or those they influence. Classic

Sophocles' Antigone - Antigone Must Challenge Creon

889 words - 4 pages the power now.     In order to get their trust, Creon shows them that he's a good leader for Thebes, but he does this cleverly, sort of in an indirect way. Instead of boasting about how great he is, Creon talks about the qualities all Thebans admire. He reminds them that they all value experience, courage, and devotion to city: As I see it, whoever assumes the awesome task of setting the city's course and refuses to adopt the soundest

The Role of Women in Homer’s Iliad

796 words - 3 pages lamentations of both Helen and Briseis for Hector and Patroclus respectively. Helen proclaims her respect for Hector’s kindness: "Hector, you’d win them to my side . . . you with your gentle temper, all your gentle words." (ll. 906-908) Likewise Briseis: "So now I mourn your death--I will never stop--you were always so kind." (ll. 355-356) The irony is that kindness is the antithesis of glory, the latter being what the male characters value most. This

A Comparison of Butler's Life and Kindred

1915 words - 8 pages Butler was born on June 22, 1947 in Pasadena, California (Voices From 1). She began her life with many hardships as an only child and having her father die when she was very young (Voices From 1). She grew up in a location that had a wide variety of racial backgrounds, however Butler never felt like she lived in a world of segregation (Notable Black 144). She describes the situation best when she states, "I never...lived in a segregated neighborhood

Pillars of Metaphorical Ambiguity in The Scarlet Letter

1439 words - 6 pages deceased Governor Winthrop;  Pearl, after pursuing several shot-down attempts in attaining Arthur’s word to profess his love and fatherhood, finally receives Dimmesdale’s response that is indicative of his attitude towards herself and her mother: "Then, and there, before the judgment-seat, thy mother, and thou, and I, must stand together. But the daylight of this world shall not see our meeting!"             The most convoluted evocation

An Analysis of Robert Ji-Song Ku's Leda

2003 words - 8 pages , whether emotional, physical, or mental, he changes his behavior so that it will. For example, he begins to "smoke and drink - heavily...simply because every one of Hemingway's heroes did it. For a while I drank only vodka martinis in public because I read that James Bond drank it exclusively ... I ... also smoked [his] particular brand of cigarettes" (280). In "Leda," the two influential "oeuvres" (280) are Junichiro Tanizaki's The Bridge of

Similar Essays

Reality And Illusion In Shakespeare's Hamlet Reality, Appearance And Deception

896 words - 4 pages might play." (I.2 ln 84) By acknowledging Hamlet's comprehension of the separation between appearances and truth, Shakespeare gives the audience a reasonable belief in Hamlet's eventual success despite the obstacles he creates for himself.   Developing a convincing scheme by which to determine the goodness of the ghost and to achieve revenge is Hamlet's first action. Hamlet asks his friend Horatio to refrain from commenting on any strange

Sub Plots In Hamlet Essay

1118 words - 4 pages Sub-plots in Hamlet   There are many things that critics say make Hamlet a "Great Work," one of which is the way that Shakespeare masterfully incorporates so many sub-plots into the story, and ties them all into the main plot of Hamlet’s revenge of his father’s murder. By the end of Act I, not only is the main plot identified, but many other sub-plots are introduced. Among the sub-plots are trust in the Ghost of King Hamlet, Fortinbras

Hamlet As Victim And Hero Essay

1301 words - 5 pages : nevertheless not as I will, but as thou will" (The Holy Bible 1235). Hamlet realized, as Jesus did, that he was in a situation where he was the only man to do the job. Therefore, he forgot about his own death and suicidal thoughts and concentrated more on bringing his uncle to justice.   Throughout the play, Hamlet demonstrates a witty personality although he is bogged down by the knowledge of his father's murder. Ophelia noticed his

Essay On Light And Dark In Antigone

1188 words - 5 pages to the battle as a "blade of sun". The morning following the battle was then called a "beautiful morning of victory". These are all positive feedback to the victory of Eteolces, and with the help of these light images, it is easy to identify the chorus' thoughts. Another praise to Creon is found in Ode I, where his law against burying Polyneices is referred to as "clear intelligence". In this instance, "clear" is used in the sense that it is