Poskusi z radioaktivnim izvorom

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Language:	Slovenian
Year of publishing:	2012
Source:	Ljubljana
Typology:	2.11 - Undergraduate Thesis
Organization:	UL PEF - Faculty of Education
Publisher:	[M. Turk]
UDC:	53.084.89(043.2)
COBISS:	9445705
Views:	1086
Downloads:	328
Average score:	0 (0 votes)
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Secondary language:	English
Secondary title:	Experiments with radioactive source
Secondary abstract:	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.
Secondary keywords:	physics;fizika;
File type:	application/pdf
Type (COBISS):	Undergraduate thesis
Thesis comment:	Univ. Ljubljana, Pedagoška fak., Fak. za matematiko in fiziko, Matematika in fizika
Pages:	58 f.
Type (ePrints):	thesis
Title (ePrints):	Experiments with radioactive source
Keywords (ePrints):	radioaktivni izotopi
Keywords (ePrints, secondary language):	radioactive isotopes
Abstract (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.
Abstract (ePrints, secondary language):	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.
Keywords (ePrints, secondary language):	radioactive isotopes
ID:	8310901