Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Recent advances with THGEM detectors   The Thick Gaseous Electron Multiplier (THGEM) is a simple and robust
electrode suitable for large area detectors. In this work the results of
extensive comparative studies of the physical properties of different
THGEM-based structures are reviewed. The focus is on newly suggested THGEM-like
WELL configurations as well as on recently developed characterization methods.
The WELL structures are single-sided THGEM electrodes directly coupled to
different anode readout electrodes. The structures differ by the coupling
concept of the bottom THGEM electrode to the metallic readout pads: a Thick
WELL (THWELL) with direct coupling; the Resistive WELL (RWELL) and the
Segmented Resistive WELL (SRWELL) coupled through thin resistive films
deposited on insulating sheets and a Resistive-Plate WELL (RPWELL) coupled
through a plate of high bulk resistivity. The results are compared to that of
traditional double-sided THGEM electrodes followed by induction gaps - in some
cases with moderate additional multiplication within the gap. We compare the
different configurations in terms of gain, avalanche extension, discharge-rate
and magnitude as well as rate capabilities over a broad dynamic range -
exploiting a method that mimics highly ionizing particles in the laboratory. We
report on recent studies of avalanche distribution in THGEM holes using optical
readout.

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The categories of this paper are: q-bio
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The categories of this paper are: cond-mat
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The categories of this paper are: dg-ga
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The categories of this paper are: hep-lat
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The categories of this paper are: nlin
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The categories of this paper are: q-alg
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The categories of this paper are: alg-geom
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The categories of this paper are: adap-org
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The categories of this paper are: chem-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: eess
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The categories of this paper are: hep-th
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The categories of this paper are: acc-phys
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The categories of this paper are: cmp-lg
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The categories of this paper are: nucl-th
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The categories of this paper are: math-ph