Contamination control and assay results for the Majorana Demonstrator ultra clean components

C. D. Christofferson; N. Abgrall; S. I. Alvis; I. J. Arnquist; F. T. Avignone; A. S. Barabash; C. J. Barton; F. E. Bertrand; T. Bode; A. W. Bradley; V. Brudanin; M. Busch; M. Buuck; T. S. Caldwell; Y. D. Chan; P. H. Chu; C. Cuesta; J. A. Detwiler; C. Dunagan; Yu Efremenko; H. Ejiri; S. R. Elliott; T. Gilliss; G. K. Giovanetti; M. P. Green; J. Gruszko; I. S. Guinn; V. E. Guiseppe; C. R. Haufe; L. Hehn; R. Henning; E. W. Hoppe; M. A. Howe; K. J. Keeter; M. F. Kidd; S. I. Konovalov; R. T. Kouzes; A. M. Lopez; R. D. Martin; R. Massarczyk; S. J. Meijer; S. Mertens; J. Myslik; C. O'Shaughnessy; G. Othman; A. W.P. Poon; D. C. Radford; J. Rager; A. L. Reine; K. Rielage; R. G.H. Robertson; N. W. Rouf; B. Shanks; M. Shirchenko; A. M. Suriano; D. Tedeschi; J. E. Trimble; R. L. Varner; S. Vasilyev; K. Vetter; K. Vorren; B. R. White; J. F. Wilkerson; C. Wiseman; W. Xu; E. Yakushev; C. H. Yu; V. Yumatov; I. Zhitnikov; B. X. Zhu

doi:10.1063/1.5019001

Contamination control and assay results for the Majorana Demonstrator ultra clean components

C. D. Christofferson, N. Abgrall, S. I. Alvis, I. J. Arnquist, F. T. Avignone, A. S. Barabash, C. J. Barton, F. E. Bertrand, T. Bode, A. W. Bradley, V. Brudanin, M. Busch, M. Buuck, T. S. Caldwell, Y. D. Chan, P. H. Chu, C. Cuesta, J. A. Detwiler, C. Dunagan, Yu EfremenkoH. Ejiri, S. R. Elliott, T. Gilliss, G. K. Giovanetti, M. P. Green, J. Gruszko, I. S. Guinn, V. E. Guiseppe, C. R. Haufe, L. Hehn, R. Henning, E. W. Hoppe, M. A. Howe, K. J. Keeter, M. F. Kidd, S. I. Konovalov, R. T. Kouzes, A. M. Lopez, R. D. Martin, R. Massarczyk, S. J. Meijer, S. Mertens, J. Myslik, C. O'Shaughnessy, G. Othman, A. W.P. Poon, D. C. Radford, J. Rager, A. L. Reine, K. Rielage, R. G.H. Robertson, N. W. Rouf, B. Shanks, M. Shirchenko, A. M. Suriano, D. Tedeschi, J. E. Trimble, R. L. Varner, S. Vasilyev, K. Vetter, K. Vorren, B. R. White, J. F. Wilkerson, C. Wiseman, W. Xu, E. Yakushev, C. H. Yu, V. Yumatov, I. Zhitnikov, B. X. Zhu

Professur für Dark Matter

Publikation: Beitrag in Buch/Bericht/Konferenzband › Konferenzbeitrag › Begutachtung

2 Zitate (Scopus)

Abstract

The Majorana Demonstrator is a neutrinoless double beta decay experiment utilizing enriched Ge-76 detectors in 2 separate modules inside of a common solid shield at the Sanford Underground Research Facility. The Demonstrator has utilized world leading assay sensitivities to develop clean materials and processes for producing ultra-pure copper and plastic components. This experiment is now operating, and initial data provide new insights into the success of cleaning and processing. Post production copper assays after the completion of Module 1 showed an increase in U and Th contamination in finished parts compared to starting bulk material. A revised cleaning method and additional round of surface contamination studies prior to Module 2 construction have provided evidence that more rigorous process control can reduce surface contamination. This article describes the assay results and discuss further studies to take advantage of assay capabilities for the purpose of maintaining ultra clean fabrication and process design.

Originalsprache	Englisch
Titel	Low Radioactivity Techniques 2017, LRT 2017
Untertitel	Proceedings of the 6th International Workshop on Low Radioactivity Techniques
Redakteure/-innen	Douglas S. Leonard
Herausgeber (Verlag)	American Institute of Physics Inc.
ISBN (elektronisch)	9780735416130
DOIs	https://doi.org/10.1063/1.5019001
Publikationsstatus	Veröffentlicht - 3 Jan. 2018
Veranstaltung	6th International Workshop on Low Radioactivity Techniques, LRT 2017 - Seoul, Südkorea Dauer: 23 Mai 2017 → 27 Mai 2017

Publikationsreihe

Name	AIP Conference Proceedings
Band	1921
ISSN (Print)	0094-243X
ISSN (elektronisch)	1551-7616

Konferenz

Konferenz	6th International Workshop on Low Radioactivity Techniques, LRT 2017
Land/Gebiet	Südkorea
Ort	Seoul
Zeitraum	23/05/17 → 27/05/17

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10.1063/1.5019001

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Christofferson, C. D., Abgrall, N., Alvis, S. I., Arnquist, I. J., Avignone, F. T., Barabash, A. S., Barton, C. J., Bertrand, F. E., Bode, T., Bradley, A. W., Brudanin, V., Busch, M., Buuck, M., Caldwell, T. S., Chan, Y. D., Chu, P. H., Cuesta, C., Detwiler, J. A., Dunagan, C., ... Zhu, B. X. (2018). Contamination control and assay results for the Majorana Demonstrator ultra clean components. in D. S. Leonard (Hrsg.), Low Radioactivity Techniques 2017, LRT 2017: Proceedings of the 6th International Workshop on Low Radioactivity Techniques Artikel 060005 (AIP Conference Proceedings; Band 1921). American Institute of Physics Inc.. https://doi.org/10.1063/1.5019001

Christofferson, C. D. ; Abgrall, N. ; Alvis, S. I. et al. / Contamination control and assay results for the Majorana Demonstrator ultra clean components. Low Radioactivity Techniques 2017, LRT 2017: Proceedings of the 6th International Workshop on Low Radioactivity Techniques. Hrsg. / Douglas S. Leonard. American Institute of Physics Inc., 2018. (AIP Conference Proceedings).

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title = "Contamination control and assay results for the Majorana Demonstrator ultra clean components",

abstract = "The Majorana Demonstrator is a neutrinoless double beta decay experiment utilizing enriched Ge-76 detectors in 2 separate modules inside of a common solid shield at the Sanford Underground Research Facility. The Demonstrator has utilized world leading assay sensitivities to develop clean materials and processes for producing ultra-pure copper and plastic components. This experiment is now operating, and initial data provide new insights into the success of cleaning and processing. Post production copper assays after the completion of Module 1 showed an increase in U and Th contamination in finished parts compared to starting bulk material. A revised cleaning method and additional round of surface contamination studies prior to Module 2 construction have provided evidence that more rigorous process control can reduce surface contamination. This article describes the assay results and discuss further studies to take advantage of assay capabilities for the purpose of maintaining ultra clean fabrication and process design.",

author = "Christofferson, {C. D.} and N. Abgrall and Alvis, {S. I.} and Arnquist, {I. J.} and Avignone, {F. T.} and Barabash, {A. S.} and Barton, {C. J.} and Bertrand, {F. E.} and T. Bode and Bradley, {A. W.} and V. Brudanin and M. Busch and M. Buuck and Caldwell, {T. S.} and Chan, {Y. D.} and Chu, {P. H.} and C. Cuesta and Detwiler, {J. A.} and C. Dunagan and Yu Efremenko and H. Ejiri and Elliott, {S. R.} and T. Gilliss and Giovanetti, {G. K.} and Green, {M. P.} and J. Gruszko and Guinn, {I. S.} and Guiseppe, {V. E.} and Haufe, {C. R.} and L. Hehn and R. Henning and Hoppe, {E. W.} and Howe, {M. A.} and Keeter, {K. J.} and Kidd, {M. F.} and Konovalov, {S. I.} and Kouzes, {R. T.} and Lopez, {A. M.} and Martin, {R. D.} and R. Massarczyk and Meijer, {S. J.} and S. Mertens and J. Myslik and C. O'Shaughnessy and G. Othman and Poon, {A. W.P.} and Radford, {D. C.} and J. Rager and Reine, {A. L.} and K. Rielage and Robertson, {R. G.H.} and Rouf, {N. W.} and B. Shanks and M. Shirchenko and Suriano, {A. M.} and D. Tedeschi and Trimble, {J. E.} and Varner, {R. L.} and S. Vasilyev and K. Vetter and K. Vorren and White, {B. R.} and Wilkerson, {J. F.} and C. Wiseman and W. Xu and E. Yakushev and Yu, {C. H.} and V. Yumatov and I. Zhitnikov and Zhu, {B. X.}",

note = "Publisher Copyright: {\textcopyright} 2018 Author(s).; 6th International Workshop on Low Radioactivity Techniques, LRT 2017 ; Conference date: 23-05-2017 Through 27-05-2017",

year = "2018",

month = jan,

day = "3",

doi = "10.1063/1.5019001",

language = "English",

series = "AIP Conference Proceedings",

publisher = "American Institute of Physics Inc.",

editor = "Leonard, {Douglas S.}",

booktitle = "Low Radioactivity Techniques 2017, LRT 2017",

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Christofferson, CD, Abgrall, N, Alvis, SI, Arnquist, IJ, Avignone, FT, Barabash, AS, Barton, CJ, Bertrand, FE, Bode, T, Bradley, AW, Brudanin, V, Busch, M, Buuck, M, Caldwell, TS, Chan, YD, Chu, PH, Cuesta, C, Detwiler, JA, Dunagan, C, Efremenko, Y, Ejiri, H, Elliott, SR, Gilliss, T, Giovanetti, GK, Green, MP, Gruszko, J, Guinn, IS, Guiseppe, VE, Haufe, CR, Hehn, L, Henning, R, Hoppe, EW, Howe, MA, Keeter, KJ, Kidd, MF, Konovalov, SI, Kouzes, RT, Lopez, AM, Martin, RD, Massarczyk, R, Meijer, SJ, Mertens, S, Myslik, J, O'Shaughnessy, C, Othman, G, Poon, AWP, Radford, DC, Rager, J, Reine, AL, Rielage, K, Robertson, RGH, Rouf, NW, Shanks, B, Shirchenko, M, Suriano, AM, Tedeschi, D, Trimble, JE, Varner, RL, Vasilyev, S, Vetter, K, Vorren, K, White, BR, Wilkerson, JF, Wiseman, C, Xu, W, Yakushev, E, Yu, CH, Yumatov, V, Zhitnikov, I & Zhu, BX 2018, Contamination control and assay results for the Majorana Demonstrator ultra clean components. in DS Leonard (Hrsg.), Low Radioactivity Techniques 2017, LRT 2017: Proceedings of the 6th International Workshop on Low Radioactivity Techniques., 060005, AIP Conference Proceedings, Bd. 1921, American Institute of Physics Inc., 6th International Workshop on Low Radioactivity Techniques, LRT 2017, Seoul, Südkorea, 23/05/17. https://doi.org/10.1063/1.5019001

Contamination control and assay results for the Majorana Demonstrator ultra clean components. / Christofferson, C. D.; Abgrall, N.; Alvis, S. I. et al.
Low Radioactivity Techniques 2017, LRT 2017: Proceedings of the 6th International Workshop on Low Radioactivity Techniques. Hrsg. / Douglas S. Leonard. American Institute of Physics Inc., 2018. 060005 (AIP Conference Proceedings; Band 1921).

Publikation: Beitrag in Buch/Bericht/Konferenzband › Konferenzbeitrag › Begutachtung

TY - GEN

T1 - Contamination control and assay results for the Majorana Demonstrator ultra clean components

AU - Christofferson, C. D.

AU - Abgrall, N.

AU - Alvis, S. I.

AU - Arnquist, I. J.

AU - Avignone, F. T.

AU - Barabash, A. S.

AU - Barton, C. J.

AU - Bertrand, F. E.

AU - Bode, T.

AU - Bradley, A. W.

AU - Brudanin, V.

AU - Busch, M.

AU - Buuck, M.

AU - Caldwell, T. S.

AU - Chan, Y. D.

AU - Chu, P. H.

AU - Cuesta, C.

AU - Detwiler, J. A.

AU - Dunagan, C.

AU - Efremenko, Yu

AU - Ejiri, H.

AU - Elliott, S. R.

AU - Gilliss, T.

AU - Giovanetti, G. K.

AU - Green, M. P.

AU - Gruszko, J.

AU - Guinn, I. S.

AU - Guiseppe, V. E.

AU - Haufe, C. R.

AU - Hehn, L.

AU - Henning, R.

AU - Hoppe, E. W.

AU - Howe, M. A.

AU - Keeter, K. J.

AU - Kidd, M. F.

AU - Konovalov, S. I.

AU - Kouzes, R. T.

AU - Lopez, A. M.

AU - Martin, R. D.

AU - Massarczyk, R.

AU - Meijer, S. J.

AU - Mertens, S.

AU - Myslik, J.

AU - O'Shaughnessy, C.

AU - Othman, G.

AU - Poon, A. W.P.

AU - Radford, D. C.

AU - Rager, J.

AU - Reine, A. L.

AU - Rielage, K.

AU - Robertson, R. G.H.

AU - Rouf, N. W.

AU - Shanks, B.

AU - Shirchenko, M.

AU - Suriano, A. M.

AU - Tedeschi, D.

AU - Trimble, J. E.

AU - Varner, R. L.

AU - Vasilyev, S.

AU - Vetter, K.

AU - Vorren, K.

AU - White, B. R.

AU - Wilkerson, J. F.

AU - Wiseman, C.

AU - Xu, W.

AU - Yakushev, E.

AU - Yu, C. H.

AU - Yumatov, V.

AU - Zhitnikov, I.

AU - Zhu, B. X.

PY - 2018/1/3

Y1 - 2018/1/3

N2 - The Majorana Demonstrator is a neutrinoless double beta decay experiment utilizing enriched Ge-76 detectors in 2 separate modules inside of a common solid shield at the Sanford Underground Research Facility. The Demonstrator has utilized world leading assay sensitivities to develop clean materials and processes for producing ultra-pure copper and plastic components. This experiment is now operating, and initial data provide new insights into the success of cleaning and processing. Post production copper assays after the completion of Module 1 showed an increase in U and Th contamination in finished parts compared to starting bulk material. A revised cleaning method and additional round of surface contamination studies prior to Module 2 construction have provided evidence that more rigorous process control can reduce surface contamination. This article describes the assay results and discuss further studies to take advantage of assay capabilities for the purpose of maintaining ultra clean fabrication and process design.

AB - The Majorana Demonstrator is a neutrinoless double beta decay experiment utilizing enriched Ge-76 detectors in 2 separate modules inside of a common solid shield at the Sanford Underground Research Facility. The Demonstrator has utilized world leading assay sensitivities to develop clean materials and processes for producing ultra-pure copper and plastic components. This experiment is now operating, and initial data provide new insights into the success of cleaning and processing. Post production copper assays after the completion of Module 1 showed an increase in U and Th contamination in finished parts compared to starting bulk material. A revised cleaning method and additional round of surface contamination studies prior to Module 2 construction have provided evidence that more rigorous process control can reduce surface contamination. This article describes the assay results and discuss further studies to take advantage of assay capabilities for the purpose of maintaining ultra clean fabrication and process design.

UR - http://www.scopus.com/inward/record.url?scp=85040529013&partnerID=8YFLogxK

U2 - 10.1063/1.5019001

DO - 10.1063/1.5019001

M3 - Conference contribution

AN - SCOPUS:85040529013

T3 - AIP Conference Proceedings

BT - Low Radioactivity Techniques 2017, LRT 2017

A2 - Leonard, Douglas S.

PB - American Institute of Physics Inc.

T2 - 6th International Workshop on Low Radioactivity Techniques, LRT 2017

Y2 - 23 May 2017 through 27 May 2017

ER -

Christofferson CD, Abgrall N, Alvis SI, Arnquist IJ, Avignone FT, Barabash AS et al. Contamination control and assay results for the Majorana Demonstrator ultra clean components. in Leonard DS, Hrsg., Low Radioactivity Techniques 2017, LRT 2017: Proceedings of the 6th International Workshop on Low Radioactivity Techniques. American Institute of Physics Inc. 2018. 060005. (AIP Conference Proceedings). doi: 10.1063/1.5019001

Contamination control and assay results for the Majorana Demonstrator ultra clean components

Abstract

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