Imperial College London
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DrPatrickDunne

Faculty of Natural Sciences, Department of Physics

Lecturer (Future Leader Fellow)
 
 
 
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Contact

 

p.dunne12

 
 
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Location

 

531aBlackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Ritchie-Yates:2023:epjc/s10052-023-12297-x,
author = {Ritchie-Yates, A and Deisting, A and Barker, G and Boyd, S and Brailsford, D and Chen-Wishart, Z and Cremonesi, L and Dunne, P and Eeles, J and Hamilton, P and Kaboth, AC and Khan, N and Klustová, A and Monroe, J and Nowak, J and Singh, P and Waldron, AV and Walding, J and Warsame, L and Wascko, MO and Xiotidis, I},
doi = {epjc/s10052-023-12297-x},
journal = {European Physical Journal C},
title = {First operation of an ALICE OROC operated in high pressure Ar-CO <inf>2</inf> and Ar-CH <inf>4</inf>},
url = {http://dx.doi.org/10.1140/epjc/s10052-023-12297-x},
volume = {83},
year = {2023}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - New neutrino–nucleus interaction cross-section measurements are required to improve nuclear models sufficiently for future long baseline neutrino experiments to meet their sensitivity goals. A time projection chamber (TPC) filled with a high-pressure gas is a promising detector to characterise the neutrino sources used for such experiments. A gas-filled TPC is ideal for measuring low-energy particles, which travel further in gas than in solid or liquid detectors and using high-pressure increases the target density, resulting in more neutrino interactions. We examine the suitability of multiwire proportional chambers (MWPCs) from the ALICE TPC for use as the readout chambers of a high-pressure gas TPC. These chambers were previously operated at atmospheric pressure. We report the successful operation of an ALICE TPC outer readout chamber (OROC) at pressures up to 4.2 bar absolute (barA) with Ar-CH 4 mixtures with a CH 4 content between 2.8 and 5.0%, and so far up to 4 bar absolute with Ar-CO 2 (90-10). The charge gain of the OROC was measured with signals induced by an 55Fe source. The largest gain achieved at 4.2 bar was (29 ± 1) · 10 3 in Ar-CH 4 with 4.0% CH 4 with an anode voltage of 2975V . In Ar-CO 2 with 10% CO 2 at 4 barA, a gain of (4.2 ± 0.1) · 10 3 was observed with anode voltage 2975V . We extrapolate that at 10 barA, an interesting pressure for future neutrino experiments, a gain of 5000 in Ar-CO 2 with 10% CO 2 (10,000 in Ar-CH 4 with ∼4%CH 4) may be achieved with anode voltage of 4.6kV (∼3.6kV).
AU  - Ritchie-Yates,A
AU  - Deisting,A
AU  - Barker,G
AU  - Boyd,S
AU  - Brailsford,D
AU  - Chen-Wishart,Z
AU  - Cremonesi,L
AU  - Dunne,P
AU  - Eeles,J
AU  - Hamilton,P
AU  - Kaboth,AC
AU  - Khan,N
AU  - Klustová,A
AU  - Monroe,J
AU  - Nowak,J
AU  - Singh,P
AU  - Waldron,AV
AU  - Walding,J
AU  - Warsame,L
AU  - Wascko,MO
AU  - Xiotidis,I
DO  - epjc/s10052-023-12297-x
PY  - 2023///
SN  - 1434-6044
TI  - First operation of an ALICE OROC operated in high pressure Ar-CO <inf>2</inf> and Ar-CH <inf>4</inf>
T2  - European Physical Journal C
UR  - http://dx.doi.org/10.1140/epjc/s10052-023-12297-x
VL  - 83
ER  -
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