Cryogenic Systems for the TUCAN EDM Experiment

Jeffery W. Martin; B. Algohi; D. Anthony; L. Barrón-Palos; M. Bradley; A. Brossard; T. Bui; J. Chak; C. Davis; R. De Vries; K. Drury; D. Fujimoto; R. Fujitani; M. Gericke; P. Giampa; R. Golub; T. Hepworth; T. Higuchi; G. Ichikawa; S. Imajo; A. Jaison; B. Jamieson; M. Katotoka; S. Kawasaki; M. Kitaguchi; W. Klassen; E. Korkmaz; E. Korobkina; M. Lavvaf; T. Lindner; N. Lo; S. Longo; K. Madison; Y. Makida; J. Malcolm; J. Mammei; R. Mammei; C. Marshall; M. McCrea; E. Miller; M. Miller; K. Mishima; T. Mohammadi; T. Momose; T. Okamura; H. J. Ong; R. Patni; R. Picker; W. D. Ramsay; W. Rathnakela; J. Sato; W. Schreyer; T. Shima; H. Shimizu; S. Sidhu; S. Stargardter; P. Switzer; I. Tanihata; S. Vanbergen; W. T.H. Van Oers; Y. Watanabe; A. Zahra; M. Zhao

doi:10.1051/epjconf/202533303004

Cryogenic Systems for the TUCAN EDM Experiment

Jeffery W. Martin
, B. Algohi
, D. Anthony
, L. Barrón-Palos
, M. Bradley
, A. Brossard
, T. Bui
, J. Chak
, C. Davis
, R. De Vries
, K. Drury
, D. Fujimoto
, R. Fujitani
, M. Gericke
, P. Giampa
, R. Golub
, T. Hepworth
, T. Higuchi
, G. Ichikawa
, S. Imajo

A. Jaison, B. Jamieson, M. Katotoka, S. Kawasaki, M. Kitaguchi, W. Klassen, E. Korkmaz, E. Korobkina, M. Lavvaf, T. Lindner, N. Lo, S. Longo, K. Madison, Y. Makida, J. Malcolm, J. Mammei, R. Mammei, C. Marshall, M. McCrea, E. Miller, M. Miller, K. Mishima, T. Mohammadi, T. Momose, T. Okamura, H. J. Ong, R. Patni, R. Picker, W. D. Ramsay, W. Rathnakela, J. Sato, W. Schreyer, T. Shima, H. Shimizu, S. Sidhu, S. Stargardter, P. Switzer, I. Tanihata, S. Vanbergen, W. T.H. Van Oers, Y. Watanabe, A. Zahra, M. Zhao

Neutron Symmetries

Research output: Contribution to journal › Conference article › peer-review

Abstract

The TUCAN (TRIUMF UltraCold Advanced Neutron) Collaboration is completing a new ultracold neutron (UCN) source. The UCN source will deliver UCNs to a neutron electric dipole moment (EDM) experiment. The EDM experiment is projected to be capable of an uncertainty of 1 × 10-27 ecm, competitive with other planned projects, and a factor of ten more precise than the present worlda's best. The TUCAN source is based on a UCN production volume of superfluid helium (He-II), held at 1 K, and coupled to a proton-driven spallation target. The production rate in the source is expected to be in excess of 107 UCN/s; since UCN losses can be small in superfluid helium, this should allow us to build up a large number of UCNs. The spallation-driven superfluid helium technology is the principal aspect making the TUCAN project unique. The superfluid production volume was recently cooled, for the first time, and successfully filled with superfluid helium. The design principles of the UCN source are described, along with some of the challenging cryogenic milestones that were recently passed.

Original language	English
Article number	03004
Journal	EPJ Web of Conferences
Volume	333
DOIs	https://doi.org/10.1051/epjconf/202533303004
State	Published - Aug 1 2025
Event	46th Symposium on Nuclear Physics 2025, SNP 2025 - Cocoyoc, Mexico Duration: Jan 6 2025 → Jan 9 2025

Funding

We gratefully acknowledge the support of the Canada Foundation for Innovation; the Canada Research Chairs program; the Natural Sciences and Engineering Research Council of Canada (NSERC) SAPPJ-2016-00024, SAPPJ-2019-00031, and SAPPJ-2023-00029; JSPS KAK-ENHI (Grant Nos. 18H05230, 19K23442, 20KK0069, 20K14487, and 22H01236); JSPS Bilateral Program (Grant No. JSPSBP120239940); JST FOREST Program (Grant No. JP-MJFR2237); International Joint Research Promotion Program of Osaka University; RCNP COREnet; the Yamada Science Foundation; the Murata Science Foundation; the Grant for Overseas Research by the Division of Graduate Studies (DoGS) of Kyoto University; and the Universidad Nacional Autonoma de Mexico - DGAPA program PASPA and grant PAPIIT AG102023.

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10.1051/epjconf/202533303004

Cite this

Martin, J. W., Algohi, B., Anthony, D., Barrón-Palos, L., Bradley, M., Brossard, A., Bui, T., Chak, J., Davis, C., De Vries, R., Drury, K., Fujimoto, D., Fujitani, R., Gericke, M., Giampa, P., Golub, R., Hepworth, T., Higuchi, T., Ichikawa, G., ... Zhao, M. (2025). Cryogenic Systems for the TUCAN EDM Experiment. EPJ Web of Conferences, 333, Article 03004. https://doi.org/10.1051/epjconf/202533303004

@article{bca9dbf6207440c7a500b22297c414b3,

title = "Cryogenic Systems for the TUCAN EDM Experiment",

abstract = "The TUCAN (TRIUMF UltraCold Advanced Neutron) Collaboration is completing a new ultracold neutron (UCN) source. The UCN source will deliver UCNs to a neutron electric dipole moment (EDM) experiment. The EDM experiment is projected to be capable of an uncertainty of 1 × 10-27 ecm, competitive with other planned projects, and a factor of ten more precise than the present worlda's best. The TUCAN source is based on a UCN production volume of superfluid helium (He-II), held at 1 K, and coupled to a proton-driven spallation target. The production rate in the source is expected to be in excess of 107 UCN/s; since UCN losses can be small in superfluid helium, this should allow us to build up a large number of UCNs. The spallation-driven superfluid helium technology is the principal aspect making the TUCAN project unique. The superfluid production volume was recently cooled, for the first time, and successfully filled with superfluid helium. The design principles of the UCN source are described, along with some of the challenging cryogenic milestones that were recently passed.",

author = "Martin, \{Jeffery W.\} and B. Algohi and D. Anthony and L. Barr{\'o}n-Palos and M. Bradley and A. Brossard and T. Bui and J. Chak and C. Davis and \{De Vries\}, R. and K. Drury and D. Fujimoto and R. Fujitani and M. Gericke and P. Giampa and R. Golub and T. Hepworth and T. Higuchi and G. Ichikawa and S. Imajo and A. Jaison and B. Jamieson and M. Katotoka and S. Kawasaki and M. Kitaguchi and W. Klassen and E. Korkmaz and E. Korobkina and M. Lavvaf and T. Lindner and N. Lo and S. Longo and K. Madison and Y. Makida and J. Malcolm and J. Mammei and R. Mammei and C. Marshall and M. McCrea and E. Miller and M. Miller and K. Mishima and T. Mohammadi and T. Momose and T. Okamura and Ong, \{H. J.\} and R. Patni and R. Picker and Ramsay, \{W. D.\} and W. Rathnakela and J. Sato and W. Schreyer and T. Shima and H. Shimizu and S. Sidhu and S. Stargardter and P. Switzer and I. Tanihata and S. Vanbergen and \{Van Oers\}, \{W. T.H.\} and Y. Watanabe and A. Zahra and M. Zhao",

note = "Publisher Copyright: {\textcopyright} The Authors, published by EDP Sciences, 2025.; 46th Symposium on Nuclear Physics 2025, SNP 2025 ; Conference date: 06-01-2025 Through 09-01-2025",

year = "2025",

month = aug,

day = "1",

doi = "10.1051/epjconf/202533303004",

language = "English",

volume = "333",

journal = "EPJ Web of Conferences",

issn = "2101-6275",

publisher = "Italian Physical Society",

}

Martin, JW, Algohi, B, Anthony, D, Barrón-Palos, L, Bradley, M, Brossard, A, Bui, T, Chak, J, Davis, C, De Vries, R, Drury, K, Fujimoto, D, Fujitani, R, Gericke, M, Giampa, P, Golub, R, Hepworth, T, Higuchi, T, Ichikawa, G, Imajo, S, Jaison, A, Jamieson, B, Katotoka, M, Kawasaki, S, Kitaguchi, M, Klassen, W, Korkmaz, E, Korobkina, E, Lavvaf, M, Lindner, T, Lo, N, Longo, S, Madison, K, Makida, Y, Malcolm, J, Mammei, J, Mammei, R, Marshall, C, McCrea, M, Miller, E, Miller, M, Mishima, K, Mohammadi, T, Momose, T, Okamura, T, Ong, HJ, Patni, R, Picker, R, Ramsay, WD, Rathnakela, W, Sato, J, Schreyer, W, Shima, T, Shimizu, H, Sidhu, S, Stargardter, S, Switzer, P, Tanihata, I, Vanbergen, S, Van Oers, WTH, Watanabe, Y, Zahra, A & Zhao, M 2025, 'Cryogenic Systems for the TUCAN EDM Experiment', EPJ Web of Conferences, vol. 333, 03004. https://doi.org/10.1051/epjconf/202533303004

TY - JOUR

T1 - Cryogenic Systems for the TUCAN EDM Experiment

AU - Martin, Jeffery W.

AU - Algohi, B.

AU - Anthony, D.

AU - Barrón-Palos, L.

AU - Bradley, M.

AU - Brossard, A.

AU - Bui, T.

AU - Chak, J.

AU - Davis, C.

AU - De Vries, R.

AU - Drury, K.

AU - Fujimoto, D.

AU - Fujitani, R.

AU - Gericke, M.

AU - Giampa, P.

AU - Golub, R.

AU - Hepworth, T.

AU - Higuchi, T.

AU - Ichikawa, G.

AU - Imajo, S.

AU - Jaison, A.

AU - Jamieson, B.

AU - Katotoka, M.

AU - Kawasaki, S.

AU - Kitaguchi, M.

AU - Klassen, W.

AU - Korkmaz, E.

AU - Korobkina, E.

AU - Lavvaf, M.

AU - Lindner, T.

AU - Lo, N.

AU - Longo, S.

AU - Madison, K.

AU - Makida, Y.

AU - Malcolm, J.

AU - Mammei, J.

AU - Mammei, R.

AU - Marshall, C.

AU - McCrea, M.

AU - Miller, E.

AU - Miller, M.

AU - Mishima, K.

AU - Mohammadi, T.

AU - Momose, T.

AU - Okamura, T.

AU - Ong, H. J.

AU - Patni, R.

AU - Picker, R.

AU - Ramsay, W. D.

AU - Rathnakela, W.

AU - Sato, J.

AU - Schreyer, W.

AU - Shima, T.

AU - Shimizu, H.

AU - Sidhu, S.

AU - Stargardter, S.

AU - Switzer, P.

AU - Tanihata, I.

AU - Vanbergen, S.

AU - Van Oers, W. T.H.

AU - Watanabe, Y.

AU - Zahra, A.

AU - Zhao, M.

PY - 2025/8/1

Y1 - 2025/8/1

N2 - The TUCAN (TRIUMF UltraCold Advanced Neutron) Collaboration is completing a new ultracold neutron (UCN) source. The UCN source will deliver UCNs to a neutron electric dipole moment (EDM) experiment. The EDM experiment is projected to be capable of an uncertainty of 1 × 10-27 ecm, competitive with other planned projects, and a factor of ten more precise than the present worlda's best. The TUCAN source is based on a UCN production volume of superfluid helium (He-II), held at 1 K, and coupled to a proton-driven spallation target. The production rate in the source is expected to be in excess of 107 UCN/s; since UCN losses can be small in superfluid helium, this should allow us to build up a large number of UCNs. The spallation-driven superfluid helium technology is the principal aspect making the TUCAN project unique. The superfluid production volume was recently cooled, for the first time, and successfully filled with superfluid helium. The design principles of the UCN source are described, along with some of the challenging cryogenic milestones that were recently passed.

AB - The TUCAN (TRIUMF UltraCold Advanced Neutron) Collaboration is completing a new ultracold neutron (UCN) source. The UCN source will deliver UCNs to a neutron electric dipole moment (EDM) experiment. The EDM experiment is projected to be capable of an uncertainty of 1 × 10-27 ecm, competitive with other planned projects, and a factor of ten more precise than the present worlda's best. The TUCAN source is based on a UCN production volume of superfluid helium (He-II), held at 1 K, and coupled to a proton-driven spallation target. The production rate in the source is expected to be in excess of 107 UCN/s; since UCN losses can be small in superfluid helium, this should allow us to build up a large number of UCNs. The spallation-driven superfluid helium technology is the principal aspect making the TUCAN project unique. The superfluid production volume was recently cooled, for the first time, and successfully filled with superfluid helium. The design principles of the UCN source are described, along with some of the challenging cryogenic milestones that were recently passed.

UR - https://www.scopus.com/pages/publications/105014483691

U2 - 10.1051/epjconf/202533303004

DO - 10.1051/epjconf/202533303004

M3 - Conference article

AN - SCOPUS:105014483691

SN - 2101-6275

VL - 333

JO - EPJ Web of Conferences

JF - EPJ Web of Conferences

M1 - 03004

T2 - 46th Symposium on Nuclear Physics 2025, SNP 2025

Y2 - 6 January 2025 through 9 January 2025

ER -

Cryogenic Systems for the TUCAN EDM Experiment

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