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Univerzita Karlova v Praze
Matematicko-fyzikln fakulta
BAKALSK PRCE
Lucia Mszrosov
Testovn kemkovch detektor pro modernizaci
detektoru ATLAS
stav sticov a jadern fyziky
Vedouc studentsk prce: doc. RNDr. Zdenk Doleal, Dr.
Studijn program: Fyzika
Studijn obor: obecn fyzika
Praha 2014
Chcela by som sa poakova doc. RNDr. Zdekovi Dolealovi, Dr.
za umonenie vypracovania tejto bakalrskej prce, za sprostredkovanie literatry
a celkov ochotu. Takisto akujem Ing. Marcele Miketkovej, Ph.D. za umonenie
prstupu do jej laboratria na testovanie detektorov a hlavne za ochotu a pomoc
pri meran a spracovvan.
Prohlauji, e jsem tuto bakalskou prci vypracovala samostatn a vhradn
s pouitm citovanch pramen, literatury a dalch odbornch zdroj.
Beru na vdom, e se na moji prci vztahuj prva a povinnosti vyplvajc
ze zkona . 121/2000 Sb., autorskho zkona v platnm znn, zejmna skutenost,
e Univerzita Karlova v Praze m prvo na uzaven licenn smlouvy o uit tto
prce jako kolnho dla podle 60 odst. 1 autorskho zkona.
V Praze dne 19.5.2014
Nzev prce: Testovn kemkovch detektor pro modernizaci detektoru ATLAS
Autor: Lucia Mszrosov
Katedra / stav: stav sticov a jadern fyziky MFF UK
Vedouc bakalsk prce: doc. RNDr. Zdenk Doleal, Dr., JF MFF UK
Abstrakt: Clem bakalsk prce je popis pipravovanho experimentu ATLAS
Upgrade a jeho porovnn s pvodnm ATLASem, popis pipravovanho rutinnho
testovn detektor a vlastn testovn prototyp stripovch kemkovch detektor
pro ATLAS Upgrade. Prce je rozdlen do t kapitol. Prvn kapitola je vnovna
obecn vzkumnmu zazen CERN, konkrtn souasnmu detektoru ATLAS,
jeho vnitnmu detektoru a stripovm kemkovm polovodiovm detektorm.
V dal sti se charakterizuje plnovan ATLAS Upgrade a opt jeho vnitn
detektor a stripov detektory. V zvru thle sti se nachz pehledn porovnn
ATLASu a ATLASu Upgrade. Posledn kapitola se zabv testovnm detektor,
nejdv rutinnmu testovn detektor v minulosti, pak plnovanmu rutinnmu
testovn a nakonec jsou popsna samotn nae men prototyp
stripovch kemkovch detektor pro ATLAS Upgrade provdn na FZ AV R
pod vedenm Ing. Marcely Miketkov, Ph.D.
Klov slova: kemkov detektory, experiment ATLAS, experiment ATLAS Upgrade,
testovn detektor
Title: Tests of Silicon Detectors for the ATLAS Detector Upgrade
Author: Lucia Mszrosov
Department: Institute of Particle and Nuclear Physics
Supervisor: doc. RNDr. Zdenk Doleal, Dr., IPNP
Abstract: The main goal of this bachelor thesis is to describe upcoming experiment
ATLAS Upgrade and to compare it with present ATLAS, to describe upcoming tests
of detectors and our own tests of prototypes of strip silicon detectors for the ATLAS
Upgrade. Thesis is divided into three chapters. The first chapter is dedicated
to the research facility CERN, specifically the present detector ATLAS, its inner
detector and strip silicon detectors. In the next part there is characterized planned
detector ATLAS Upgrade and again its inner detector and strip detectors. In the end
of this part there is a tabular comparison of ATLAS and ATLAS Upgrade. The last
chapter deals with the testing of detectors, at first routine testing of detectors
in the past for ATLAS and planned routine tests for ATLAS Upgrade, and finally
there are described our own tests of prototype the strip silicon detectors
in FZ AV R supervised by Ing. Marcela Miketkov, Ph.D.
Keywords: silicon detectors, ATLAS experiment, ATLAS Upgrade experiment,
test of detectors
Nzov prce: Testovn kemkovch detektor pro modernizaci detektoru ATLAS
Autor: Lucia Mszrosov
Katedra / stav: stav sticov a jadern fyziky MFF UK
Vedci bakalrskej prce: doc. RNDr. Zdenk Doleal, Dr., JF MFF UK
Abstrakt: Cieom bakalrskej prce je popsa pripravovan experiment
ATLAS Upgrade a porovna ho s pvodnm ATLASom, popsa pripravovan
rutinn testovanie detektorov a vlastn testovanie prototypov stripovch
kremkovch detektorov pre ATLAS Upgrade. Prca je rozdelen do troch kapitol.
Prv kapitola je venovan obecne vskumnmu zariadeniu CERN, konkrtne
sasnmu detektoru ATLAS, jeho vntornmu detektoru a stripovm kremkovm
polovodiovm detektorom. V alej asti sa charakterizuje plnovan detektor
ATLAS Upgrade a op jeho vntorn detektor a stripov detektory. V zvere tejto
asti sa nachdza prehadn porovnanie ATLASa a ATLASa Upgrade. Posledn
kapitola sa zaober testovanm detektorov, najskr rutinnmu testovaniu detektorov
v minulosti a plnovanmu rutinnmu testovaniu, nakoniec s popsan samotn nae
merania na FZ AV R prototypov stripovch kremkovch detektorov pre ATLAS
Upgrade pod vedenm Ing. Marcely Miketkovej, Ph.D.
Kov slov: kremkov detektory, experiment ATLAS, experiment ATLAS
Upgrade, testovanie detektorov
Obsah
vod ............................................................................................................................. 1
1. CERN a ATLAS .................................................................................................. 2
1.1 CERN ............................................................................................................ 2
1.2 ATLAS .......................................................................................................... 3
1.3 Princp kremkovch detektorov ................................................................... 5
1.3.1 Polovodie .............................................................................................. 5
1.3.2 Pohyb nosiov nboja ............................................................................ 6
1.3.3 Vznik vonch nosiov nboja .............................................................. 6
1.3.4 PN prechod ............................................................................................. 7
1.3.5 Polovodiov detektory .......................................................................... 8
1.4 Stripov detektory ......................................................................................... 9
1.4.1 Vplyv iarenia na kremkov detektory ............................................... 11
2. ATLAS UPGRADE ........................................................................................... 12
2.1 ITK - vntorn detektor .............................................................................. 12
2.2 Stripov detektory v ITK ............................................................................. 13
2.3 Porovnanie ATLASa a ATLASa UPGRADE ............................................. 16
3. Testovanie detektorov ........................................................................................ 19
3.1 Testovanie detektorov pre ATLAS ............................................................. 19
3.2 Testovanie detektorov pre ATLAS Upgrade ............................................... 21
3.3 Testovanie detektorov na FZ AV R ....................................................... 22
3.3.1 Detektory ATLAS12 ............................................................................ 23
3.3.2 Popis testov .......................................................................................... 24
3.3.3 Samotn testovanie a vyhodnotenie vsledkov.................................... 25
Zver .......................................................................................................................... 31
Referencie .................................................................................................................. 33
Zoznam pouitch skratiek ........................................................................................ 34
Prloha ........................................................................................................................ 35
1. Porovnanie vlastnost ATLASa a ATLASa Upgrade (anglicky) .................... 35
1
vod
Vo vajiarskom CERNe u niekoko rokov funguje LHC, ktor
sa pripravuje na vylepenie, hlavne na zvenie luminozity (High Luminosity LHC).
Na takto prostredie astc sa bud musie pripravi aj detektory, ktor detekuj
na LHC.
Jednm z nich je detektor ATLAS. Na jeho vylepen sa u intenzvne
pracuje, vyrbaj sa prototypy na jeho sasti a testuj sa ich vlastnosti. Mal by
zaa pracova v roku 2024 a ponesie nov nzov ATLAS Upgrade.
Takisto sa predbene pripravuj poiadavky na rutinn testovania detektorov
podobn tm, ktor prebehli na JF MFF UK pred niekokmi rokmi.
Cieom tejto prce je popsa vntorn detektor ATLAS Upgrade, z akch
ast sa bude sklada, o je nov a o naopak bude vynechan. Bliie z vntornho
detektoru sa budeme venova stripovm detektorom. Na zver urobme prehad
vlastnost a zmien ATLASa a ATLASa Upgrade.
Ako alie zhrnieme postup spomnanho testovania detektorov v minulosti
na JF MFF UK a porovnme s pripravovanm testovanm.
Nakoniec budeme prezentova testovanie detektorov, na ktorom sme
sa podieali v spoluprci s Ing. Marcelou Miketkovou, Ph.D. Konkrtne to boli
prototypy stripovch detektorov pre ATLAS Upgrade. V prci popeme samotn
testovanie detektorov a vyhodnotme vsledky.
Text celej prce je rozd
