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Journal of Instrumentation Volume 4 December 2009 Create an alert RSS this journal

G Charpak et al 2009 JINST 4 P12007 doi:10.1088/1748-0221/4/12/P12007

Progress in the development of a S-RETGEM-based detector for an early forest fire warning system

OPEN ACCESS 1st International Conference on Micro-Pattern Gaseous Detectors (MPGD2009)

G Charpaka, P Benabena, P Breuila, P Martinengob, E Nappic and V Peskovb

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Abstract References

Part of 1st International Conference on Micro-Pattern Gaseous Detectors (MPGD2009)

We present a prototype of a Strip Resistive Thick GEM (S-RETGEM) photosensitive gaseous detector filled with Ne and ethylferrocene (EF) vapours at a total pressure of 1 atm for an early forest fire detection system. Measurements show that it is one hundred times more sensitive than the best commercial ultraviolet (UV) flame detectors; and therefore, it is able to reliably detect a flame of ~ 1.5 × 1.5 × 1.5 m3 at a distance of about 1 km. An additional and unique feature of this detector is its imaging capability, which in combination with other techniques, may significantly reduce false fire alarms rate when operating in an automatic mode. Preliminary results conducted with air-filled photosensitive gaseous detectors are also presented. The main advantages of this approach include both the simplicity of manufacturing and affordability of construction materials such as plastics and glues specifically reducing detector production cost. The sensitivity of these air-filled detectors at certain conditions may be as high as those filled with Ne and EF. Long-term tests of such sealed detectors indicate a significant progress in this direction. We believe that our detectors utilized in addition to other flame and smoke sensors will exceptionally increase the capability to detect forest fire at a very early stage of development. Our future efforts will be focused on attempts to commercialize such detectors utilizing our aforementioned findings.

Keywords

Photon detectors for UV, visible and IR photons (gas) (gas-photocathodes, solid-photocathodes)

Micropattern gaseous detectors (MSGC, GEM, THGEM, RETHGEM, MICROMEGAS, InGrid, etc)

Gaseous detectors

PACS

29.40.Cs Gas-filled counters: ionization chambers, proportional, and avalanche counters

29.40.Gx Tracking and position-sensitive detectors

Subjects

Accelerators, beams and electromagnetism

Nuclear physics

Instrumentation and measurement

Particle physics and field theory

Dates

Issue 12 (December 2009)

Received 13 September 2009, accepted for publication 21 October 2009

Published 10 December 2009



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