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Investigation and compensation of the nonlinear response in photomultiplier tubes for quantitative single-shot measurements.

Knappe, Christoph LU ; Lindén, Johannes LU ; Abou Nada, Fahd Jouda LU ; Richter, Mattias LU and Aldén, Marcus LU (2012) In Review of Scientific Instruments 83(3).
Abstract
A concept for time-sensitive optical detectors is described that shows how to confirm whether the detection device is operating in the linear response regime. By evaluating the recorded time decay of a thermographic phosphor, even weak saturation effects far from obvious situations can be identified and further related to either optical or electrical saturation. The concept has been validated by running a PMT detector close to saturation and exposing it to the optical signal decay of two different thermographic phosphors, La(2)O(2)S:Eu and CdWO(4). It was confirmed that short but intense light exposures at the beginning of an individual time decay influence the detector response for the rest of the decaying signal including temporal areas,... (More)
A concept for time-sensitive optical detectors is described that shows how to confirm whether the detection device is operating in the linear response regime. By evaluating the recorded time decay of a thermographic phosphor, even weak saturation effects far from obvious situations can be identified and further related to either optical or electrical saturation. The concept has been validated by running a PMT detector close to saturation and exposing it to the optical signal decay of two different thermographic phosphors, La(2)O(2)S:Eu and CdWO(4). It was confirmed that short but intense light exposures at the beginning of an individual time decay influence the detector response for the rest of the decaying signal including temporal areas, where the anode current has dropped well below the manufacturer specified current limit. Such situations are common when applying, e.g., phosphor thermometry where it is necessary to retrieve the full decay curve from a single-shot event, i.e., standard techniques based on single-photon counting are omitted. Finally, means of compensation are introduced in order to facilitate the retrieval of useful information from the measurement data when operation in the non-linear response regime is inevitable. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Review of Scientific Instruments
volume
83
issue
3
publisher
American Institute of Physics
external identifiers
  • wos:000302227700048
  • pmid:22462946
  • scopus:84861602556
ISSN
1089-7623
DOI
10.1063/1.3693618
language
English
LU publication?
yes
id
a3d6fa13-1d79-4c2f-ae0e-8f91665d7260 (old id 2520034)
date added to LUP
2012-05-08 13:03:11
date last changed
2017-10-08 04:04:36
@article{a3d6fa13-1d79-4c2f-ae0e-8f91665d7260,
  abstract     = {A concept for time-sensitive optical detectors is described that shows how to confirm whether the detection device is operating in the linear response regime. By evaluating the recorded time decay of a thermographic phosphor, even weak saturation effects far from obvious situations can be identified and further related to either optical or electrical saturation. The concept has been validated by running a PMT detector close to saturation and exposing it to the optical signal decay of two different thermographic phosphors, La(2)O(2)S:Eu and CdWO(4). It was confirmed that short but intense light exposures at the beginning of an individual time decay influence the detector response for the rest of the decaying signal including temporal areas, where the anode current has dropped well below the manufacturer specified current limit. Such situations are common when applying, e.g., phosphor thermometry where it is necessary to retrieve the full decay curve from a single-shot event, i.e., standard techniques based on single-photon counting are omitted. Finally, means of compensation are introduced in order to facilitate the retrieval of useful information from the measurement data when operation in the non-linear response regime is inevitable.},
  articleno    = {034901},
  author       = {Knappe, Christoph and Lindén, Johannes and Abou Nada, Fahd Jouda and Richter, Mattias and Aldén, Marcus},
  issn         = {1089-7623},
  language     = {eng},
  number       = {3},
  publisher    = {American Institute of Physics},
  series       = {Review of Scientific Instruments},
  title        = {Investigation and compensation of the nonlinear response in photomultiplier tubes for quantitative single-shot measurements.},
  url          = {http://dx.doi.org/10.1063/1.3693618},
  volume       = {83},
  year         = {2012},
}