Poskusi z radioaktivnim izvorom

Povzetek

Ključne besede

Podatki

Jezik:	Slovenski jezik
Leto izida:	2012
Izvor:	Ljubljana
Tipologija:	2.11 - Diplomsko delo
Organizacija:	UL PEF - Pedagoška fakulteta
Založnik:	[M. Turk]
UDK:	53.084.89(043.2)
COBISS:	9445705
Št. ogledov:	1086
Št. prenosov:	328
Ocena:	0 (0 glasov)
Metapodatki:

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Sekundarni jezik:	Angleški jezik
Sekundarni naslov:	Experiments with radioactive source
Sekundarni povzetek:	In this diploma thesis the most interesting and instructive experiments have been collected using radioactive sources, which intended for lecturing students and teachers. The diploma thesis begins with topics about radioactive nuclei (structure of nucleus, types of decays, how radioactivity is measured, radiation dose and its effects on human body). The experimental part presents the measurements and calculated absorption coefficients for the isotope Strontium 90. In the first part I examine how the number of decays and time periods between two decays are distributed. I examined correlation between the sequence of time periods between two consecutive decays. In the following I checked up if the number of beta particles decreases exponentially. I also calculated the absorption coefficients for Aluminium and air. The thesis concludes by presenting instructions for two experimental exercises. My measurements and my analyses related to the exercises are also displayed. In the second exercise the absorption coefficient for iron is also calculated.
Sekundarne ključne besede:	physics;fizika;
Vrsta datoteke:	application/pdf
Vrsta dela (COBISS):	Diplomsko delo
Komentar na gradivo:	Univ. Ljubljana, Pedagoška fak., Fak. za matematiko in fiziko, Matematika in fizika
Strani:	58 f.
Vrsta dela (ePrints):	thesis
Naslov (ePrints):	Experiments with radioactive source
Ključne besede (ePrints):	radioaktivni izotopi
Ključne besede (ePrints, sekundarni jezik):	radioactive isotopes
Povzetek (ePrints):	V diplomskem delu sem zbrala najbolj zanimive in poučne poskuse z radioaktivnim izvorom, ki so uporabni za poučevanje študentov ali učiteljev. V teoretičnem delu so zajete teme, ki se nanašajo na radioaktivna jedra (zgradba jedra, razpadi, uporaba, detektiranje, prejeta količina sevanja in njeni vplivi). V eksperimentalnem delu so predstavljene moje meritve in izmerjeni absorpcijski koeficienti za uporabljen izotop stroncija 90, ki seva žarke beta. Pogledala sem, kako je število razpadov v izbranem časovnem intervalu porazdeljeno in kako so porazdeljeni časovni intervali med zaporednimi razpadi. Preverila sem tudi, če obstaja korelacija med zaporednimi časi razpadov. Kasneje sem preverjala ali se število jeder pri prehodu čez snov eksponentno zmanjšuje. V okviru teh meritev sem določila še absorpcijski koeficient za aluminij in zrak. V zadnjem poglavju so zapisana navodila za dve eksperimentalni vaji. V okviru ene izmed vaj sem iz meritev določila še absorpcijski koeficient za železo. Poleg navodil so priložene tudi rešitve, ki sem jih izoblikovala na podlagi mojih meritev.
Povzetek (ePrints, sekundarni jezik):	In this diploma thesis the most interesting and instructive experiments have been collected using radioactive sources, which intended for lecturing students and teachers. The diploma thesis begins with topics about radioactive nuclei (structure of nucleus, types of decays, how radioactivity is measured, radiation dose and its effects on human body). The experimental part presents the measurements and calculated absorption coefficients for the isotope Strontium 90. In the first part I examine how the number of decays and time periods between two decays are distributed. I examined correlation between the sequence of time periods between two consecutive decays. In the following I checked up if the number of beta particles decreases exponentially. I also calculated the absorption coefficients for Aluminium and air. The thesis concludes by presenting instructions for two experimental exercises. My measurements and my analyses related to the exercises are also displayed. In the second exercise the absorption coefficient for iron is also calculated.
Ključne besede (ePrints, sekundarni jezik):	radioactive isotopes
ID:	8310901