Simulation of He+ induced afterpulses in PMTs

Konrad Tudyka; Grzegorz Adamiec; Andrzej Bluszcz

doi:10.1063/1.4954511

Simulation of He⁺ induced afterpulses in PMTs

Division of Geochronology and Environmental Isotopes (RIF/RIF2)

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

We report on a Monte Carlo simulation study of afterpulses due to trace gases in EMI 9235QA photomultipliers that are widely used in many luminescence detection systems operating in single photon counting mode. The numerical simulation takes into account the nonuniform electric field distribution and processes including elastic scattering: e + He → e + He, excitation: e + He → e + He^-, ionization: e + He → 2e + He⁺, elastic scattering: He⁺ + He → He⁺ + He, charge transfer: He⁺ + He → He_f + He⁺ (He_f indicates a fast neutral) and elastic scattering: He_f + He → He_f + He_(f). The simulated and the measured time of flight distributions agree well. In addition, the above simulated processes demonstrate mechanisms of the observed series of pulses brought about by a single helium atom ionization.

Original language	English
Article number	063120
Journal	Review of Scientific Instruments
Volume	87
Issue number	6
DOIs	https://doi.org/10.1063/1.4954511
Publication status	Published - 1 Jun 2016

ASJC Scopus subject areas

Instrumentation

Access to Document

10.1063/1.4954511

Cite this

@article{5b4d779685324095ac0f95f2142c8724,

title = "Simulation of He+ induced afterpulses in PMTs",

abstract = "We report on a Monte Carlo simulation study of afterpulses due to trace gases in EMI 9235QA photomultipliers that are widely used in many luminescence detection systems operating in single photon counting mode. The numerical simulation takes into account the nonuniform electric field distribution and processes including elastic scattering: e + He → e + He, excitation: e + He → e + He-, ionization: e + He → 2e + He+, elastic scattering: He+ + He → He+ + He, charge transfer: He+ + He → Hef + He+ (Hef indicates a fast neutral) and elastic scattering: Hef + He → Hef + He(f). The simulated and the measured time of flight distributions agree well. In addition, the above simulated processes demonstrate mechanisms of the observed series of pulses brought about by a single helium atom ionization.",

author = "Konrad Tudyka and Grzegorz Adamiec and Andrzej Bluszcz",

note = "Publisher Copyright: {\textcopyright} 2016 Author(s).",

year = "2016",

month = jun,

day = "1",

doi = "10.1063/1.4954511",

language = "English",

volume = "87",

journal = "Review of Scientific Instruments",

issn = "0034-6748",

publisher = "American Institute of Physics",

number = "6",

}

TY - JOUR

T1 - Simulation of He+ induced afterpulses in PMTs

AU - Tudyka, Konrad

AU - Adamiec, Grzegorz

AU - Bluszcz, Andrzej

PY - 2016/6/1

Y1 - 2016/6/1

N2 - We report on a Monte Carlo simulation study of afterpulses due to trace gases in EMI 9235QA photomultipliers that are widely used in many luminescence detection systems operating in single photon counting mode. The numerical simulation takes into account the nonuniform electric field distribution and processes including elastic scattering: e + He → e + He, excitation: e + He → e + He-, ionization: e + He → 2e + He+, elastic scattering: He+ + He → He+ + He, charge transfer: He+ + He → Hef + He+ (Hef indicates a fast neutral) and elastic scattering: Hef + He → Hef + He(f). The simulated and the measured time of flight distributions agree well. In addition, the above simulated processes demonstrate mechanisms of the observed series of pulses brought about by a single helium atom ionization.

AB - We report on a Monte Carlo simulation study of afterpulses due to trace gases in EMI 9235QA photomultipliers that are widely used in many luminescence detection systems operating in single photon counting mode. The numerical simulation takes into account the nonuniform electric field distribution and processes including elastic scattering: e + He → e + He, excitation: e + He → e + He-, ionization: e + He → 2e + He+, elastic scattering: He+ + He → He+ + He, charge transfer: He+ + He → Hef + He+ (Hef indicates a fast neutral) and elastic scattering: Hef + He → Hef + He(f). The simulated and the measured time of flight distributions agree well. In addition, the above simulated processes demonstrate mechanisms of the observed series of pulses brought about by a single helium atom ionization.

UR - https://www.scopus.com/pages/publications/84977498518

U2 - 10.1063/1.4954511

DO - 10.1063/1.4954511

M3 - Article

AN - SCOPUS:84977498518

SN - 0034-6748

VL - 87

JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

IS - 6

M1 - 063120

ER -

Simulation of He⁺ induced afterpulses in PMTs

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this