Charge collection and field profile studies of heavily irradiated strip sensors for the ATLAS inner tracker upgrade

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F16%3A10369924" target="_blank" >RIV/00216208:11320/16:10369924 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/16:00522534

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.nima.2016.04.035" target="_blank" >http://dx.doi.org/10.1016/j.nima.2016.04.035</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.nima.2016.04.035" target="_blank" >10.1016/j.nima.2016.04.035</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Charge collection and field profile studies of heavily irradiated strip sensors for the ATLAS inner tracker upgrade

Popis výsledku v původním jazyce

The ATLAS group has evaluated the charge collection in silicon microstrip sensors irradiated up to a fluence of 1 x 10(16) n(eq)/cm(2), exceeding the maximum of 1.6 x 10(15) n(eq)/cm(2) expected for the strip tracker during the high luminosity LHC (HL-LHC) period including a safety factor of 2. The ATLASI2, n(+) -on-p type sensor, which is fabricated by Hamamatsu Photonics (HPK) on float zone (FZ) substrates, is the latest barrel sensor prototype. The charge collection from the irradiated 1 x 1 cm(2) barrel test sensors has been evaluated systematically using penetrating p-rays and an Alibava readout system. The data obtained at different measurement sites are compared with each other and with the results obtained from the previous ATLAS07 design. The results are very consistent, in particular, when the deposit charge is normalized by the sensor&apos;s active thickness derived from the edge transient current technique (edge-TCT) measurements. The measurements obtained using beta-rays are verified to be consistent with the measurements using an electron beam. The edge-TCT is also effective for evaluating the field profiles across the depth. The differences between the irradiated ATLAS07 and ATLASI2 samples have been examined along with the differences among the samples irradiated with different radiation sources: neutrons, protons, and pions. The studies of the bulk properties of the devices show that the devices can yield a sufficiently large signal for the expected fluence range in the HL-LHC, thereby acting as precision tracking sensors.

Název v anglickém jazyce

Charge collection and field profile studies of heavily irradiated strip sensors for the ATLAS inner tracker upgrade

Popis výsledku anglicky

The ATLAS group has evaluated the charge collection in silicon microstrip sensors irradiated up to a fluence of 1 x 10(16) n(eq)/cm(2), exceeding the maximum of 1.6 x 10(15) n(eq)/cm(2) expected for the strip tracker during the high luminosity LHC (HL-LHC) period including a safety factor of 2. The ATLASI2, n(+) -on-p type sensor, which is fabricated by Hamamatsu Photonics (HPK) on float zone (FZ) substrates, is the latest barrel sensor prototype. The charge collection from the irradiated 1 x 1 cm(2) barrel test sensors has been evaluated systematically using penetrating p-rays and an Alibava readout system. The data obtained at different measurement sites are compared with each other and with the results obtained from the previous ATLAS07 design. The results are very consistent, in particular, when the deposit charge is normalized by the sensor&apos;s active thickness derived from the edge transient current technique (edge-TCT) measurements. The measurements obtained using beta-rays are verified to be consistent with the measurements using an electron beam. The edge-TCT is also effective for evaluating the field profiles across the depth. The differences between the irradiated ATLAS07 and ATLASI2 samples have been examined along with the differences among the samples irradiated with different radiation sources: neutrons, protons, and pions. The studies of the bulk properties of the devices show that the devices can yield a sufficiently large signal for the expected fluence range in the HL-LHC, thereby acting as precision tracking sensors.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Nuclear Instruments &amp; Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment

ISSN

0168-9002

e-ISSN

—

Svazek periodika

2016

Číslo periodika v rámci svazku

831

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

181-188

Kód UT WoS článku

000382255800034

EID výsledku v databázi Scopus

—