Development of New Hole-Type Avalanche Detectors and the First Results of their Applications

Abstract

We have developed a new detector of photons and charged particles- a hole-type structure with electrodes made of a double layered resistive material: a thin low resistive layer coated with a layer having a much higher resistivity. One of the unique features of this detector is its capability to operate at high gas gains (up to 10E4) in air or in gas mixtures with air. They can also operate in a cascaded mode or be combined with other detectors, for example with GEM. This opens new avenues in their applications. Several prototypes of these devices based on new detectors and oriented on practical applications were developed and successfully tested: a detector of soft X-rays and alpha particles, a flame sensor, a detector of dangerous gases. All of these detectors could operate stably even in humid air and/or in dusty conditions. The main advantages of these detectors are their simplicity, low cost and high sensitivity. For example, due to the avalanche multiplication, the detectors of flames and dangerous gases have a sensitivity of 10-100 times higher than commercial devices. We therefore believe that new detectors will have a great future.

arXiv commentPresented at the IEEE Nuclear Science Symposium, Honolulu, Hawaii, USA, October 2007

References in corpus (7)

• Advances in Thick GEM-like gaseous electron multipliers. Part I: atmospheric pressure operation
• Detection of the primary scintillation light from dense Ar, Kr and Xe with novel photosensitive gaseous detectors
• Development of innovative micropattern gaseous detectors with resistive electrodes and first results of their applications
• Negative Ion Drift and Diffusion in a TPC near 1 Bar
• GEM Operation in Negative Ion Drift Gas Mixtures
• Study of GEM-like detectors with resistive electrodes for RICH applications
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Cited by in corpus (4)

• Progress in the development of a S RETGEM-based detector for an early forest fire warning system
• Development of a new generation of micropattern gaseous detectors for high energy physics, astrophysics and environmental applications
• GEMs with Double Layred Micropattern Electrodes and their Applications
• The Thick Gas Electron Multiplier and its derivatives: physics, technologies and applications