Development of a liquid-xenon photon detector––towards the search for a muon rare decay mode at Paul Scherrer Institute

Mihara, S.; Doke, T.; Haruyama, T.; Kasami, K.; Maki, A.; Mitsuhashi, Tsutomu; Mori, T.; Nishiguchi, H.; Ootani, Wataru; Ozone, K.; Sawada, R.; Suzuki, Satoshi; Terasawa, Kazuhiro; Yoshimura, T.

doi:10.1016/j.cryogenics.2003.12.002

Cited by 25 publications

(13 citation statements)

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“…Two types of purification systems were developed for studies with this prototype. One is a gaseous purification system where liquid xenon is evaporated, purified by a heated metal getter, and then liquefied back in the cryostat (173). This method is effective in removing all types of impurities but not efficient, since the purification speed is limited by the cooling power.…”

Section: The Meg Detector For µ → Eγ Decaymentioning

confidence: 99%

Liquid xenon detectors for particle physics and astrophysics

2010

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This article reviews the progress made over the last 20 years in the development and applications of liquid xenon detectors in particle physics, astrophysics and medical imaging experiments. We begin with a summary of the fundamental properties of liquid xenon as radiation detection medium, in light of the most current theoretical and experimental information. After a brief introduction of the different type of liquid xenon detectors, we continue with a review of past, current and future experiments using liquid xenon to search for rare processes and to image radiation in space and in medicine. We will introduce each application with a brief survey of the underlying scientific motivation and experimental requirements, before reviewing the basic characteristics and expected performance of each experiment. Within this decade it appears likely that large volume liquid xenon detectors operated in different modes will contribute to answering some of the most fundamental questions in particle physics, astrophysics and cosmology, fulfilling the most demanding detection challenges. From experiments like MEG, currently the largest liquid xenon scintillation detector in operation, dedicated to the rare "µ → eγ" decay, to the future XMASS which also exploits only liquid xenon scintillation to address an ambitious program of rare event searches, to the class of time projection chambers like XENON and EXO which exploit both scintillation and ionization of liquid xenon for dark matter and neutrinoless double beta decay, respectively, we anticipate unrivaled performance and important contributions to physics in the next few years.PACS numbers: 95.35.+d, 29.40.Mc,95.55.Vj

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Section: The Meg Detector For µ → Eγ Decaymentioning

confidence: 99%

Liquid xenon detectors for particle physics and astrophysics

2010

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“…To meet the stringent LXe purity requirement for this type of detector, we have developed a gas purification and recirculation system capable to remove electronegative impurities from the liquid filled detector: xenon gas is continuously extracted from the detector and circulated through a high temperature getter (SAES), before being re-condensed (Mihara, 2004). The charge collection efficiency depends on the electron lifetime in LXe.…”

Section: Purification and Recirculation Systemmentioning

confidence: 99%

The XENON dark matter search experiment

Aprile

Giboni

Majewski

et al. 2005

New Astronomy Reviews

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The XENON experiment aims at the direct detection of dark matter in the form of WIMPs (Weakly Interacting Massive Particles) via their elastic scattering off Xe nuclei. A fiducial mass of 1000 kg, distributed in ten independent liquid xenon time projection chambers(LXeTPCs) will be used to probe the lowest interaction cross section predicted by SUSY models. The TPCs are operated in dual (liquid/gas) phase, to allow a measurement of nuclear recoils down to 16 keV energy, via simultaneous detection of the ionization, through secondary scintillation in the gas, and primary scintillation in the liquid. The distinct ratio of primary to secondary scintillation for nuclear recoils from WIMPs (or neutrons), and for electron recoils from background, is key to the event-by-event discrimination capability of XENON. A dual phase xenon prototype has been realized and is currently being tested, along with other prototypes dedicated to other measurements relevant to the XENON program. As part of the R&D phase, we will realize and move underground a first XENON module (XENON10) with at least 10 kg fiducial mass to measure the background rejection capability and to optimize the conditions for continuous and stable detector operation underground. We present some of the results from the ongoing R&D and summarize the expected performance of the 10 kg experiment, from Monte Carlo simulations. The main design features of the 100 kg detector unit(XENON100), with which we envisage to make up the 1 tonne sensitive mass of XENON1T will also be presented.

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“…The constructions of the MU-E-GAMMA (MEG) experimental facility has been completed and ready to be employed for the detection of muon rare decay at the Paul Scherrer Institute (PSI), Switzerland [1]. In this experiment, liquid xenon is used for scintillation calorimeter because of its fast response, large atomic number, and high density.…”

Section: Introductionmentioning

confidence: 99%

Cryogenic Technology Development For The MEG Liquid Xenon Calorimeter

Haruyama

2008

AIP Conference Proceedings

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Cryogenic key technologies have been developed for the muon rare decay experiment (MEG) at the Paul Scherrer Institute, Switzerland. These technologies are the high power pulse tube cryocooler for precise temperature and pressure control of liquid xenon in the calorimeter, a purification system with a cryogenic liquid pump and a cryogenic dewar with 1000L storage capacity. The paper describes the general concepts and the first test results of each technology. All the results imply a promising performance for the coming MEG experiment.

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Development of a liquid-xenon photon detector––towards the search for a muon rare decay mode at Paul Scherrer Institute

Cited by 25 publications

References 9 publications

Liquid xenon detectors for particle physics and astrophysics

Liquid xenon detectors for particle physics and astrophysics

The XENON dark matter search experiment

Cryogenic Technology Development For The MEG Liquid Xenon Calorimeter

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