Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Non-proportionality and energy resolution of CsI(T1)
Show others and affiliations
2007 (English)In: IEEE Transactions on Nuclear Science, ISSN 0018-9499, E-ISSN 1558-1578, Vol. 54, no 5, 1836-1841 p.Article in journal (Refereed) Published
Abstract [en]

Experimental studies of CsI(Tl) crystals with different amounts of Tl activator are presented. Properties such as non-proportionality, energy resolution and the number of photoelectrons per 1 MeV-gamma were inspected at two different shaping time constants, i.e., 3 and 12 mu s. A CsI(Tl) crystal was coupled to the XP5212 PMT with a photocathode blue sensitivity of 12.2 mu A/lmF. Six CsI(Tl) crystals of different sizes were tested. Among them, three samples were of known Tl concentration, which amounted roughly 0.05, 0.1 and 0.25 mol%. The data analvsis showed a much more proportional character of the crystal response, higher number of photoelectrons/MeV-gamma, and consequently, a better overall energy resolution obtained for 12 mu s time constant for all tested samples. The calculated intrinsic resolution improved for longer shaping time constants as well, indicating that, for CsI(Tl) crystals, a more proportional response implies better intrinsic energy resolution of the host crystal. In contrast, the intrinsic resolution at the low energy region (below about 30 keV) deteriorated for the longer shaping time constant. An alpha/gamma ratio was also measured for each tested CsI(Tl) crystal in order to find any indication of an explanation of the intrinsic resolution deterioration for low energy photons at the 12 mu s integration time.

Place, publisher, year, edition, pages
2007. Vol. 54, no 5, 1836-1841 p.
Keyword [en]
CsI(T1), energy resolution, non-proportionality, area avalanche photodiodes, tl crystals, light yield, gamma-rays, csi, pure
Identifiers
URN: urn:nbn:se:kth:diva-17055DOI: 10.1109/tns.2007.906168ISI: 000250313700020Scopus ID: 2-s2.0-35348975640OAI: oai:DiVA.org:kth-17055DiVA: diva2:335098
Note
QC 20100525Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2017-12-12Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Klamra, Wlodzimierz
By organisation
Particle and Astroparticle Physics
In the same journal
IEEE Transactions on Nuclear Science

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 53 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf