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Title: Combination of two Gas Electron Multipliers and a Micromegas as gain elements for a time projection chamber

Authors:
; ; ; ; ; ; ; ;
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1375961
Grant/Contract Number:
SC004168; 200935; AC02-98CH10886; 4000132727; SC0014550; SC0003892; SC0013391
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
Additional Journal Information:
Journal Volume: 834; Journal Issue: C; Related Information: CHORUS Timestamp: 2017-10-04 22:00:13; Journal ID: ISSN 0168-9002
Publisher:
Elsevier
Country of Publication:
Netherlands
Language:
English

Citation Formats

Aiola, S., Ehlers, R. J., Gu, S., Harris, J. W., Majka, R., Mulligan, J. D., Oliver, M., Schambach, J., and Smirnov, N. Combination of two Gas Electron Multipliers and a Micromegas as gain elements for a time projection chamber. Netherlands: N. p., 2016. Web. doi:10.1016/j.nima.2016.08.007.
Aiola, S., Ehlers, R. J., Gu, S., Harris, J. W., Majka, R., Mulligan, J. D., Oliver, M., Schambach, J., & Smirnov, N. Combination of two Gas Electron Multipliers and a Micromegas as gain elements for a time projection chamber. Netherlands. doi:10.1016/j.nima.2016.08.007.
Aiola, S., Ehlers, R. J., Gu, S., Harris, J. W., Majka, R., Mulligan, J. D., Oliver, M., Schambach, J., and Smirnov, N. Wed . "Combination of two Gas Electron Multipliers and a Micromegas as gain elements for a time projection chamber". Netherlands. doi:10.1016/j.nima.2016.08.007.
@article{osti_1375961,
title = {Combination of two Gas Electron Multipliers and a Micromegas as gain elements for a time projection chamber},
author = {Aiola, S. and Ehlers, R. J. and Gu, S. and Harris, J. W. and Majka, R. and Mulligan, J. D. and Oliver, M. and Schambach, J. and Smirnov, N.},
abstractNote = {},
doi = {10.1016/j.nima.2016.08.007},
journal = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},
number = C,
volume = 834,
place = {Netherlands},
year = {Wed Aug 03 00:00:00 EDT 2016},
month = {Wed Aug 03 00:00:00 EDT 2016}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1016/j.nima.2016.08.007

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  • The decay of the ground-state two-proton emitter {sup 45}Fe was studied with a time-projection chamber and the emission of two protons was unambiguously identified. The total decay energy and the half-life measured in this work agree with the results from previous experiments. The present result constitutes the first direct observation of the individual protons in the two-proton decay of a long-lived ground-state emitter. In parallel, we identified for the first time directly two-proton emission from {sup 43}Cr, a known {beta}-delayed two-proton emitter. The technique developed in the present work opens the way to a detailed study of the mechanism ofmore » ground state as well as {beta}-delayed two-proton radioactivity.« less
  • After the recent discovery of two-proton radioactivity, an important effort has been made in order to observe each emitted particle individually. Such kind of studies may result in energy and angular correlation measurements of the protons, which are required to give a precise theoretical description of this exotic decay mode. In this frame, we performed an experiment at the GANIL/SISSI/LISE3 facility, where we used a Time Projection Chamber to observe tracks of protons in the decay of {sup 45}Fe, produced in projectile fragmentation reactions.
  • We have constructed microstrip gas chambers (MSGCs) for implementation as a time projection chamber readout. The MSGC consists of an alternating 10 {mu}m wide anode and 90 {mu}m wide cathode strip pattern deposited on one side of a thin substrate. A rectangular pad pattern is deposited on the opposite side of the substrate. The MSGC is mounted in a test chamber filled with a 90:10 mixture of Ar-CH{sub 4}. We will present measurements obtained with an {sup 55}Fe X-ray source from MSGCs constructed on different substrates with varying anode/cathode and pad geometries. The performance and optimization of the anode andmore » pad readout will be discussed.« less
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  • Liquid argon time projection chambers (LArTPCs) produce remarkable fidelity in the observation of neutrino interactions. The superior capabilities of such detectors to reconstruct the spatial and calorimetric information of neutrino events have made them the detectors of choice in a number of experiments, specifically those looking to observe electron neutrino (more » $$\nu_e$$) appearance. The LArTPC promises excellent background rejection capabilities, especially in this "golden" channel for both short and long baseline neutrino oscillation experiments. We present the first experimental observation of electron neutrinos and anti-neutrinos in the ArgoNeut LArTPC, in the energy range relevant to DUNE and the Fermilab Short Baseline Neutrino Program. Additionally, we present a demonstration of separation of electrons from gammas using neutrino data.« less