Light yield as a function of gas pressure and electric field in gas scintillation proportional counters

Favata, F.; Smith, A.; Bavdaz, Marcos; Kowalski, T. Z.

doi:10.1016/0168-9002(90)90303-n

Cited by 24 publications

(22 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…89 Td, which is very close to the experimental value [81,82]. For E/N larger than -18 Td, the simulations showed the xenon ionization started to occur, confirming experimental results for the ionization threshold [81,82] (Y/N is expected to deviate from the linear behavior described above at higher electric fields due to electron multiplication).…”

Section: Results Of the Simuiationssupporting

confidence: 86%

Monte Carlo simulation of x-ray absorption and electron drift in gaseous xenon

et al. 1993

View full text Add to dashboard Cite

A detailed Monte Carlo simulation model has been developed to study the absorption of soft x rays and the subsequent behavior of the resulting electrons under the inhuence of an applied electric field in gaseous xenon. All relevant physical processes are included from the initial photoionization through the subsequent decay of the residual ion to the scattering and drift of the electrons resulting from the interactions with the background gas. Details are provided for the cross sections and decay rates employed as well as the criteria used to terminate the simulation, depending on the information or results required. Examples of its use in modeling gaseous radiation detectors are included.PACS number(s): 32.80.t, 29.40.Mc, 29.40.Cs, 34.90.+ q

show abstract

Section: Results Of the Simuiationssupporting

confidence: 86%

Monte Carlo simulation of x-ray absorption and electron drift in gaseous xenon

et al. 1993

View full text Add to dashboard Cite

show abstract

“…Above a reduced field of 8 kVcm -1 bar -1 , the xenon ionisation threshold, the reduced scintillation yield variation departs from the linear behaviour, reflecting the exponential growth in the number of electrons present in the scintillation region, since secondary electrons also produce electroluminescence, while Y/N is calculated per primary electron. Favata et al [32] reported a detailed study of the electroluminescence yield as a function of reduced electric field and compiled the different studies on electroluminescence yield published up to then (1990), concluding that the reduced electroluminescence yield is pressure-independent. Fonseca et al [17] have shown that the scintillation yield does not depend on gas temperature, in the range from 20 downto -88ºC.…”

Section: Resultsmentioning

confidence: 99%

Secondary scintillation yield in pure xenon

et al. 2007

View full text Add to dashboard Cite

The xenon secondary scintillation yield was studied as a function of the electric field in the scintillation region, in a gas proportional scintillation counter operated at room temperature. A large area avalanche photodiode was used for the readout of the VUV secondary scintillation produced in the gas, together with the 5.9 keV x-rays directly absorbed in the photodiode. The latter was used as a reference for the determination of the number of charge carriers produced by the scintillation pulse and, thus, the number of VUV photons impinging the photodiode. A value of 140 photons/kV was obtained for the scintillation amplification parameter. The attained results are in good agreement with those predicted, for room temperature, by Monte Carlo simulation and Boltzmann calculations, as well as with those obtained for saturated xenon vapour, at cryogenic temperatures, and are about a factor of two higher than former results measured at room temperature.

show abstract

“…Experimental results obtained by different workers have been compiled. 25 Santos et al 26 carried out detailed Monte Carlo (MC) simulation studies of the electron drift in xenon under the influence of an electric field and of the production of electroluminescence.…”

Section: Secondary Scintillation Productionmentioning

confidence: 99%

Development of portable gas proportional scintillation counters for x‐ray spectrometry

et al. 2001

View full text Add to dashboard Cite

A review on gas proportional scintillation counters (GPSCs) is presented. Recent achievements towards the portability of simple, inexpensive and compact GPSCs are discussed. Compensation of solid angle effects with the curved grid technique can be used to produce non-focused GPSCs with medium-sized radiation windows, at least up to 80% of the photosensor active diameter, without degradation of detector performance. Low power-consuming and compact vacuum UV photosensors that can operate in direct contact with the scintillation gas, as an alternative to photomultiplier tubes, are now available. Small gettering devices with a low-power built-in heating elements have been shown to be sufficient for the required gas purification in GPSCs assembled with simple and inexpensive techniques, such as the use of epoxies for ceramic-to-metal joints.

show abstract

Light yield as a function of gas pressure and electric field in gas scintillation proportional counters

Cited by 24 publications

References 11 publications

Monte Carlo simulation of x-ray absorption and electron drift in gaseous xenon

Monte Carlo simulation of x-ray absorption and electron drift in gaseous xenon

Secondary scintillation yield in pure xenon

Development of portable gas proportional scintillation counters for x‐ray spectrometry

Contact Info

Product

Resources

About