Measurement of the pressure dependence of air fluorescence emission induced by electrons

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F07%3A00004640" target="_blank" >RIV/61989592:15310/07:00004640 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Measurement of the pressure dependence of air fluorescence emission induced by electrons

Original language description

The fluorescence detection of ultra high energy ( 1018 eV) cosmic rays requires a detailed knowledge of the fluorescence light emission from nitrogen molecules, which are excited by the cosmic ray shower particles along their path in the atmosphere. We have made a precise measurement of the fluorescence light spectrum excited by MeV electrons in dry air. We measured the relative intensities of 34 fluorescence bands in the wavelength range from 284 to 429 nm with a high resolution spectrograph. The pressure dependence of the fluorescence spectrum was also measured from a few hPa up to atmospheric pressure. Relative intensities and collisional quenching reference pressures for bands due to transitions from a common upper level were found in agreement with theoretical expectations. The presence of argon in air was found to have a negligible effect on the fluorescence yield. We estimated that the systematic uncertainty on the cosmic ray shower energy due to the pressure dependence of the f

Czech name

Měření závislosti fluorescence vzduchu vyvolané elektrony na jeho tlaku.

Czech description

Detekce kosmických částic s velmi vysokými energiemi ( 1018 eV) pomocí fluorescence vyžaduje detailní znalost fluorescence molekul dusíku vyvolané sprškou částic podél jejich dráhy v atmosféře. Provedli jsme přesná měření pro analýzu závislosti intenzityfluorescence na změnách tlaku vzduchu.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BH - Optics, masers and lasers

OECD FORD branch

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Project

<a href="/en/project/GA202%2F05%2F2470" target="_blank" >GA202/05/2470: The AIRFLY experiment: AIR Fluorescence Yield - study of the fluorescent light emission iduced by ionizing radiation in the air</a><br>

Continuities

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

Publication year

2007

Confidentiality

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

Name of the periodical

Astroparticle Physics

ISSN

0927-6505

e-ISSN

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Volume of the periodical

28

Issue of the periodical within the volume

1

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

17

Pages from-to

41-57

UT code for WoS article

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EID of the result in the Scopus database

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