A low-noise CsI detector array for the precision measurement of parity nonconservation in n + p → d + γ

M. T. Gericke; C. Blessinger; J. D. Bowman; R. D. Carlini; T. E. Chupp; K. P. Coulter; M. Dawkins; M. Dabaghyan; D. Desai; S. J. Freedman; T. R. Gentile; R. C. Gillis; G. L. Greene; J. Hartfield; F. W. Hersman; T. Ino; G. L. Jones; B. Lauss; M. Leuschner; B. Losowski; R. Mahurin; Y. Masuda; G. S. Mitchell; S. Muto; H. Nann; S. A. Page; S. I. Penttilä; W. D. Ramsay; S. Santra; P. N. Seo; E. T. Sharapov; T. B. Smith; W. M. Snow; J. Tasson; W. S. Wilburn; H. Zhu

doi:10.1063/1.1945103

A low-noise CsI detector array for the precision measurement of parity nonconservation in n + p → d + γ

M. T. Gericke, C. Blessinger, J. D. Bowman, R. D. Carlini, T. E. Chupp, K. P. Coulter, M. Dawkins, M. Dabaghyan, D. Desai, S. J. Freedman, T. R. Gentile, R. C. Gillis, G. L. Greene, J. Hartfield, F. W. Hersman, T. Ino, G. L. Jones, B. Lauss, M. Leuschner, B. LosowskiR. Mahurin, Y. Masuda, G. S. Mitchell, S. Muto, H. Nann, S. A. Page, S. I. Penttilä, W. D. Ramsay, S. Santra, P. N. Seo, E. T. Sharapov, T. B. Smith, W. M. Snow, J. Tasson, W. S. Wilburn, H. Zhu

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Scopus citations

Abstract

We have built a CsI(Tl) γ-ray detector array for the NPDGamma experiment to search for a small parity-violating directional asymmetry in the angular distribution of 2.2 MeV γ-rays from the capture of polarized cold neutrons by protons with a sensitivity of several ppb. The weak pion-nucleon coupling constant can be determined from this asymmetry. The small size of the asymmetry requires control of systematic errors at the ppb level, and the use of current-mode γ-ray detection with vacuum photo diodes and low-noise solid-state preamplifiers. The detectors were tested for noise performance, sensitivity to magnetic fields, pedestal stability, and cosmic background. False asymmetries due to gain changes and electronic pickup in the detector system were measured to be consistent with zero to an accuracy of 10^-9 in a few hours. We show that the detector array operates at counting statistics and present asymmetry results for B₄C, CCl₄, ²⁷Al, Cu, and In. B₄C, ²⁷Al, Cu, and In are used throughout the experimental apparatus.

Original language	English
Title of host publication	International Conference on Nuclear Data for Science and Technology
Pages	692-695
Number of pages	4
DOIs	https://doi.org/10.1063/1.1945103
State	Published - May 24 2005
Externally published	Yes
Event	International Conference on Nuclear Data for Science and Technology - Santa Fe, NM, United States Duration: Sep 26 2004 → Oct 1 2004

Publication series

Name	AIP Conference Proceedings
Volume	769
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Conference

Conference	International Conference on Nuclear Data for Science and Technology
Country/Territory	United States
City	Santa Fe, NM
Period	09/26/04 → 10/1/04

Access to Document

10.1063/1.1945103

Cite this

Gericke, M. T., Blessinger, C., Bowman, J. D., Carlini, R. D., Chupp, T. E., Coulter, K. P., Dawkins, M., Dabaghyan, M., Desai, D., Freedman, S. J., Gentile, T. R., Gillis, R. C., Greene, G. L., Hartfield, J., Hersman, F. W., Ino, T., Jones, G. L., Lauss, B., Leuschner, M., ... Zhu, H. (2005). A low-noise CsI detector array for the precision measurement of parity nonconservation in n + p → d + γ. In International Conference on Nuclear Data for Science and Technology (pp. 692-695). (AIP Conference Proceedings; Vol. 769). https://doi.org/10.1063/1.1945103

@inproceedings{78d0501204584a79ae4c9f1d34255212,

title = "A low-noise CsI detector array for the precision measurement of parity nonconservation in n + p → d + γ",

abstract = "We have built a CsI(Tl) γ-ray detector array for the NPDGamma experiment to search for a small parity-violating directional asymmetry in the angular distribution of 2.2 MeV γ-rays from the capture of polarized cold neutrons by protons with a sensitivity of several ppb. The weak pion-nucleon coupling constant can be determined from this asymmetry. The small size of the asymmetry requires control of systematic errors at the ppb level, and the use of current-mode γ-ray detection with vacuum photo diodes and low-noise solid-state preamplifiers. The detectors were tested for noise performance, sensitivity to magnetic fields, pedestal stability, and cosmic background. False asymmetries due to gain changes and electronic pickup in the detector system were measured to be consistent with zero to an accuracy of 10-9 in a few hours. We show that the detector array operates at counting statistics and present asymmetry results for B4C, CCl4, 27Al, Cu, and In. B4C, 27Al, Cu, and In are used throughout the experimental apparatus.",

author = "Gericke, {M. T.} and C. Blessinger and Bowman, {J. D.} and Carlini, {R. D.} and Chupp, {T. E.} and Coulter, {K. P.} and M. Dawkins and M. Dabaghyan and D. Desai and Freedman, {S. J.} and Gentile, {T. R.} and Gillis, {R. C.} and Greene, {G. L.} and J. Hartfield and Hersman, {F. W.} and T. Ino and Jones, {G. L.} and B. Lauss and M. Leuschner and B. Losowski and R. Mahurin and Y. Masuda and Mitchell, {G. S.} and S. Muto and H. Nann and Page, {S. A.} and Penttil{\"a}, {S. I.} and Ramsay, {W. D.} and S. Santra and Seo, {P. N.} and Sharapov, {E. T.} and Smith, {T. B.} and Snow, {W. M.} and J. Tasson and Wilburn, {W. S.} and H. Zhu",

year = "2005",

month = may,

day = "24",

doi = "10.1063/1.1945103",

language = "English",

isbn = "073540254X",

series = "AIP Conference Proceedings",

pages = "692--695",

booktitle = "International Conference on Nuclear Data for Science and Technology",

note = "International Conference on Nuclear Data for Science and Technology ; Conference date: 26-09-2004 Through 01-10-2004",

}

Gericke, MT, Blessinger, C, Bowman, JD, Carlini, RD, Chupp, TE, Coulter, KP, Dawkins, M, Dabaghyan, M, Desai, D, Freedman, SJ, Gentile, TR, Gillis, RC, Greene, GL, Hartfield, J, Hersman, FW, Ino, T, Jones, GL, Lauss, B, Leuschner, M, Losowski, B, Mahurin, R, Masuda, Y, Mitchell, GS, Muto, S, Nann, H, Page, SA, Penttilä, SI, Ramsay, WD, Santra, S, Seo, PN, Sharapov, ET, Smith, TB, Snow, WM, Tasson, J, Wilburn, WS & Zhu, H 2005, A low-noise CsI detector array for the precision measurement of parity nonconservation in n + p → d + γ. in International Conference on Nuclear Data for Science and Technology. AIP Conference Proceedings, vol. 769, pp. 692-695, International Conference on Nuclear Data for Science and Technology, Santa Fe, NM, United States, 09/26/04. https://doi.org/10.1063/1.1945103

A low-noise CsI detector array for the precision measurement of parity nonconservation in n + p → d + γ. / Gericke, M. T.; Blessinger, C.; Bowman, J. D. et al.
International Conference on Nuclear Data for Science and Technology. 2005. p. 692-695 (AIP Conference Proceedings; Vol. 769).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - A low-noise CsI detector array for the precision measurement of parity nonconservation in n + p → d + γ

AU - Gericke, M. T.

AU - Blessinger, C.

AU - Bowman, J. D.

AU - Carlini, R. D.

AU - Chupp, T. E.

AU - Coulter, K. P.

AU - Dawkins, M.

AU - Dabaghyan, M.

AU - Desai, D.

AU - Freedman, S. J.

AU - Gentile, T. R.

AU - Gillis, R. C.

AU - Greene, G. L.

AU - Hartfield, J.

AU - Hersman, F. W.

AU - Ino, T.

AU - Jones, G. L.

AU - Lauss, B.

AU - Leuschner, M.

AU - Losowski, B.

AU - Mahurin, R.

AU - Masuda, Y.

AU - Mitchell, G. S.

AU - Muto, S.

AU - Nann, H.

AU - Page, S. A.

AU - Penttilä, S. I.

AU - Ramsay, W. D.

AU - Santra, S.

AU - Seo, P. N.

AU - Sharapov, E. T.

AU - Smith, T. B.

AU - Snow, W. M.

AU - Tasson, J.

AU - Wilburn, W. S.

AU - Zhu, H.

PY - 2005/5/24

Y1 - 2005/5/24

N2 - We have built a CsI(Tl) γ-ray detector array for the NPDGamma experiment to search for a small parity-violating directional asymmetry in the angular distribution of 2.2 MeV γ-rays from the capture of polarized cold neutrons by protons with a sensitivity of several ppb. The weak pion-nucleon coupling constant can be determined from this asymmetry. The small size of the asymmetry requires control of systematic errors at the ppb level, and the use of current-mode γ-ray detection with vacuum photo diodes and low-noise solid-state preamplifiers. The detectors were tested for noise performance, sensitivity to magnetic fields, pedestal stability, and cosmic background. False asymmetries due to gain changes and electronic pickup in the detector system were measured to be consistent with zero to an accuracy of 10-9 in a few hours. We show that the detector array operates at counting statistics and present asymmetry results for B4C, CCl4, 27Al, Cu, and In. B4C, 27Al, Cu, and In are used throughout the experimental apparatus.

AB - We have built a CsI(Tl) γ-ray detector array for the NPDGamma experiment to search for a small parity-violating directional asymmetry in the angular distribution of 2.2 MeV γ-rays from the capture of polarized cold neutrons by protons with a sensitivity of several ppb. The weak pion-nucleon coupling constant can be determined from this asymmetry. The small size of the asymmetry requires control of systematic errors at the ppb level, and the use of current-mode γ-ray detection with vacuum photo diodes and low-noise solid-state preamplifiers. The detectors were tested for noise performance, sensitivity to magnetic fields, pedestal stability, and cosmic background. False asymmetries due to gain changes and electronic pickup in the detector system were measured to be consistent with zero to an accuracy of 10-9 in a few hours. We show that the detector array operates at counting statistics and present asymmetry results for B4C, CCl4, 27Al, Cu, and In. B4C, 27Al, Cu, and In are used throughout the experimental apparatus.

UR - http://www.scopus.com/inward/record.url?scp=33749457088&partnerID=8YFLogxK

U2 - 10.1063/1.1945103

DO - 10.1063/1.1945103

M3 - Conference contribution

AN - SCOPUS:33749457088

SN - 073540254X

SN - 9780735402546

T3 - AIP Conference Proceedings

SP - 692

EP - 695

BT - International Conference on Nuclear Data for Science and Technology

T2 - International Conference on Nuclear Data for Science and Technology

Y2 - 26 September 2004 through 1 October 2004

ER -

A low-noise CsI detector array for the precision measurement of parity nonconservation in n + p → d + γ

Abstract

Publication series

Conference

Access to Document

Other files and links

Fingerprint

Cite this