Absolute-scale determination of bremsstrahlung following photoabsorption of incident x and γ rays

Znanstveni rad - Izvorni znanstveni rad

• Autor: Selim Pašić
• Autor: Ksenofont Ilakovac
• Autorova ustanova: Sveučilište u Zagrebu; Prirodoslovno-matematički fakultet; (Fizički odsjek)
• Znanstveno / umjetničko područje, polje i grana: PRIRODNE ZNANOSTI; Fizika

Sažetak (engleski)

The spectrum of bremsstrahlung due to photoelectrons ejected by incident photons of energy 59.5 keV was measured on an absolute scale. A coincidence experimental setup with two high-purity germanium detectors was used. One detector served as the target as well as the detector of ejected electrons and another (second) detector served as the detector of bremsstrahlung radiation. The applied experimental method gives a very clean bremsstrahlung spectrum which can be reliably determined on an absolute scale in the low- and mid-energy range. Detailed processing of the data is presented, including calculations of all other processes that have also been recorded in the experiment. A simple theoretical model for the bremsstrahlung of photoelectrons in an infinitely thick target is applied and the results are compared with experimental values. Good agreement between the theoretical and experimental results has been obtained.

• Ključne riječi (engleski): Bremsstrahlung of photoelectrons; germanium target; incident photons of energy 59.5 keV; two germanium detectors in coincidence; simple theoretical model for bremsstrahlung of photoelectrons
• Jezik: engleski
• Vrsta publikacije: Znanstveni rad - Izvorni znanstveni rad
• Status objave: Objavljen
• Vrsta recenzije: Recenziran - međunarodna recenzija
• Verzija publikacije: Objavljena verzija rada (izdavačev PDF)
• Naslov časopisa: Physical Review A
• Brojčani podaci: vol. 61, br. 4, str. 42710-7
• p-ISSN: 1050-2947
• DOI: https://doi.org/10.1103/PhysRevA.61.042710
• URN:NBN: urn:nbn:hr:217:589747
• Datum objave publikacije: 2000
• URL dokumenta: http://dx.doi.org/10.1103/PhysRevA.61.042710
• Vrsta resursa: Tekst
• Prava pristupa: Otvoreni pristup
• Javna napomena: Copyright (2000) by the American Physical Society.
• Datum i vrijeme pohrane: 2019-10-10 18:55:18