New acoustic instrumentation for the SIMPLE superheated droplet detector

被引：36

作者：

Felizardo, M. ^{[1
,2
,3
]}

Martins, R. C. ^{[2
]}

Ramos, A. R. ^{[1
,3
]}

Morlat, T. ^{[3
]}

Girard, T. A. ^{[3
]}

Giuliani, F. ^{[3
]}

Marques, J. G. ^{[1
,3
]}

机构：

[1] Inst Tecnol & Nucl, P-2686953 Sacavem, Portugal

[2] IST, Inst Telecommun, P-1049001 Lisbon, Portugal

[3] Univ Lisbon, Ctr Fis Nucl, P-1649003 Lisbon, Portugal

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2008年 / 589卷 / 01期

关键词：

dark matter; superheated liquids; instrumentation; signal discrimination;

D O I：

10.1016/j.nima.2008.02.012

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Previous acoustic instrumentation of the SIMPLE detector has relied on the use of a low-cost piezoelectric transducer, which was generally unable to provide discrimination between true bubble nucleation events and ambiental sources of acoustic noise. The use of a high-quality electret microphone and adaptive electronics is shown to provide this capacity through reduced noise levels and distinct fast Fourier transforms of the event registration. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：72 / 84

页数：13

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