Radon in the DRIFT-II directional dark matter TPC: emanation, detection and mitigation

被引：16

作者：

Battat, J. B. R. ^{[1
]}

Brack, J. ^{[2
]}

Daw, E.

Dorofeev, A. ^{[2
]}

Ezeribe, A. C. ^{[3
]}

Fox, J. R. ^{[4
]}

Gauvreau, J. -L. ^{[4
]}

Gold, M. ^{[5
]}

Harmon, L. J. ^{[4
]}

Harton, J. L. ^{[2
]}

Landers, J. M. ^{[4
]}

Lee, E. R. ^{[5
]}

Loomba, D. ^{[5
]}

Matthews, J. A. J. ^{[5
]}

Miller, E. H. ^{[5
]}

Monte, A. ^{[4
]}

Murphy, A. St J. ^{[6
]}

Paling, S. M. ^{[7
]}

Phan, N. ^{[5
]}

Pipe, M. ^{[3
]}

Robinson, M. ^{[3
]}

Sadler, S. W. ^{[3
]}

Scarff, A. ^{[3
]}

Snowden-Ifft, D. P. ^{[4
]}

Spooner, N. J. C. ^{[3
]}

Telfer, S. ^{[3
]}

Walker, D. ^{[3
]}

Warner, D. ^{[2
]}

Yuriev, L. ^{[3
]}

机构：

[1] Wellesley Coll, Dept Phys, Wellesley, MA 02481 USA

[2] Colorado State Univ, Dept Phys, Ft Collins, CO 80523 USA

[3] Univ Sheffield, Dept Phys & Astron, Sheffield, S Yorkshire, England

[4] Occidental Coll, Dept Phys, Los Angeles, CA 90041 USA

[5] Univ New Mexico, Dept Phys & Astron, Albuquerque, NM 87131 USA

[6] Univ Edinburgh, Sch Phys & Astron, SUPA, Edinburgh EH9 3JZ, Midlothian, Scotland

[7] STFC Boulby Underground Sci Facil, Cleveland TS13 4UZ, England

来源：

JOURNAL OF INSTRUMENTATION | 2014年 / 9卷

基金：

美国国家科学基金会;

关键词：

Wire chambers(MWPC; Thin-gap chambers; drift chambers; drift tubes; proportional chambers etc); Gaseous imaging and tracking detectors; Dark Matter detectors (WIMPs; axions; etc.); Time projection chambers; PERFORMANCE; DIFFUSION;

D O I：

10.1088/1748-0221/9/11/P11004

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Radon gas emanating from materials is of interest in environmental science and also a major concern in rare event non-accelerator particle physics experiments such as dark matter and double beta decay searches, where it is a major source of background. Notable for dark matter experiments is the production of radon progeny recoils (RPRs), the low energy (similar to 100 keV) recoils of radon daughter isotopes, which can mimic the signal expected from WIMP interactions. Presented here are results of measurements of radon emanation from detector materials in the 1m(3) DRIFT-II directional dark matter gas time projection chamber experiment. Construction and operation of a radon emanation facility for this work is described, along with an analysis to continuously monitor DRIFT data for the presence of internal Rn-222 and Po-218. Applying this analysis to historical DRIFT data, we show how systematic substitution of detector materials for alternatives, selected by this device for low radon emanation, has resulted in a factor of similar to 10 reduction in internal radon rates. Levels are found to be consistent with the sum from separate radon emanation measurements of the internal materials and also with direct measurement using an attached alpha spectrometer. The current DRIFT detector, DRIFT-IId, is found to have sensitivity to Rn-222 of 2.5 mu Bql(-1) with current analysis efficiency, potentially opening up DRIFT technology as a new tool for sensitive radon assay of materials.

引用

页数：19

共 23 条

[1] THE CASE FOR A DIRECTIONAL DARK MATTER DETECTOR AND THE STATUS OF CURRENT EXPERIMENTAL EFFORTS [J].

Ahlen, S. ;

Afshordi, N. ;

Battat, J. B. R. ;

Billard, J. ;

Bozorgnia, N. ;

Burgos, S. ;

Caldwell, T. ;

Carmona, J. M. ;

Cebrian, S. ;

Colas, P. ;

Dafni, T. ;

Daw, E. ;

Dujmic, D. ;

Dushkin, A. ;

Fedus, W. ;

Ferrer, E. ;

Finkbeiner, D. ;

Fisher, P. H. ;

Forbes, J. ;

Fusayasu, T. ;

Galan, J. ;

Gamble, T. ;

Ghag, C. ;

Giomataris, I. ;

Gold, M. ;

Gomez, H. ;

Gomez, M. E. ;

Gondolo, P. ;

Green, A. ;

Grignon, C. ;

Guillaudin, O. ;

Hagemann, C. ;

Hattori, K. ;

Henderson, S. ;

Higashi, N. ;

Ida, C. ;

Iguaz, F. J. ;

Inglis, A. ;

Irastorza, I. G. ;

Iwaki, S. ;

Kaboth, A. ;

Kabuki, S. ;

Kadyk, J. ;

Kallivayalil, N. ;

Kubo, H. ;

Kurosawa, S. ;

Kudryavtsev, V. A. ;

Lamy, T. ;

Lanza, R. ;

Lawson, T. B. .

INTERNATIONAL JOURNAL OF MODERN PHYSICS A, 2010, 25 (01) :1-51

[2] The DRIFT-II dark matter detector:: Design and commissioning [J].

Alner, GJ ;

Araujo, H ;

Bewick, A ;

Burgos, S ;

Carson, MJ ;

Davies, JC ;

Daw, E ;

Dawson, J ;

Forbes, J ;

Gamble, T ;

Garcia, M ;

Ghag, C ;

Gold, M ;

Hollen, S ;

Hollingworth, RJ ;

Howard, AS ;

Kirkpatrick, JA ;

Kudryavtsev, VA ;

Lawson, TB ;

Lebedenko, V ;

Lewin, JD ;

Lightfoot, PK ;

Liubarsky, I ;

Loomba, D ;

Lüscher, R ;

McMillan, JE ;

Morgan, B ;

Muna, D ;

Murphy, AS ;

Nicklin, GG ;

Paling, SM ;

Petkov, A ;

Plank, SJS ;

Preece, RM ;

Quenby, JJ ;

Robinson, M ;

Sanghi, N ;

Smith, NJT ;

Smith, PF ;

Snowden-Ifft, DP ;

Spooner, NJC ;

Sumner, TJ ;

Tovey, DR ;

Turk, J ;

Tzaferi, E ;

Walker, RJ .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2005, 555 (1-2) :173-183

[3] REVIEW OF PARTICLE PHYSICS Particle Data Group [J].

Beringer, J. ;

Arguin, J. -F. ;

Barnett, R. M. ;

Copic, K. ;

Dahl, O. ;

Groom, D. E. ;

Lin, C. -J. ;

Lys, J. ;

Murayama, H. ;

Wohl, C. G. ;

Yao, W. -M. ;

Zyla, P. A. ;

Amsler, C. ;

Antonelli, M. ;

Asner, D. M. ;

Baer, H. ;

Band, H. R. ;

Basaglia, T. ;

Bauer, C. W. ;

Beatty, J. J. ;

Belousov, V. I. ;

Bergren, E. ;

Bernardi, G. ;

Bertl, W. ;

Bethke, S. ;

Bichsel, H. ;

Biebel, O. ;

Blucher, E. ;

Blusk, S. ;

Brooijmans, G. ;

Buchmueller, O. ;

Cahn, R. N. ;

Carena, M. ;

Ceccucci, A. ;

Chakraborty, D. ;

Chen, M. -C. ;

Chivukula, R. S. ;

Cowan, G. ;

D'Ambrosio, G. ;

Damour, T. ;

de Florian, D. ;

de Gouvea, A. ;

DeGrand, T. ;

de Jong, P. ;

Dissertori, G. ;

Dobrescu, B. ;

Doser, M. ;

Drees, M. ;

Edwards, D. A. ;

Eidelman, S. .

PHYSICAL REVIEW D, 2012, 86 (01)

[4] Long-term study of backgrounds in the DRIFT-II directional dark matter experiment [J].

Brack, J. ;

Daw, E. ;

Dorofeev, A. ;

Ezeribe, A. C. ;

Fox, J. R. ;

Gauvreau, J. -L. ;

Gold, M. ;

Harmon, L. ;

Harton, J. L. ;

Lafler, R. ;

Landers, J. M. ;

Lauer, R. ;

Lee, E. R. ;

Loomba, D. ;

Matthews, J. A. J. ;

Miller, E. H. ;

Monte, A. ;

Murphy, A. StJ. ;

Paling, S. M. ;

Phan, N. ;

Pipe, M. ;

Robinson, M. ;

Sadler, S. ;

Scarff, A. ;

Snowden-Ifft, D. P. ;

Spooner, N. J. C. ;

Telfer, S. ;

Walker, D. ;

Yuriev, L. .

JOURNAL OF INSTRUMENTATION, 2014, 9

[5] Track reconstruction and performance of DRIFT directional dark matter detectors using alpha particles [J].

Burgos, S. ;

Forbes, J. ;

Ghag, C. ;

Gold, M. ;

Kudryavtsev, V. A. ;

Lawson, T. B. ;

Loomba, D. ;

Majewski, P. ;

Muna, D. ;

Murphy, A. St J. ;

Nicklin, G. G. ;

Paling, S. M. ;

Petkov, A. ;

Plank, S. J. S. ;

Robinson, M. ;

Sanghi, N. ;

Smith, N. J. T. ;

Snowden-Ifft, D. P. ;

Spooner, N. J. C. ;

Sumner, T. J. ;

Turk, J. ;

Tziaferi, E. .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2008, 584 (01) :114-128

[6] Studies of neutron detection and backgrounds with the DRIFT-IIa dark matter detector [J].

Burgos, S. ;

Forbes, J. ;

Ghag, C. ;

Gold, M. ;

Kudryavtsev, V. A. ;

Lawson, T. B. ;

Loomba, D. ;

Majewski, P. ;

Muna, D. ;

Murphy, A. Stj. ;

Nicklin, G. G. ;

Paling, S. M. ;

Petkov, A. ;

Plank, S. J. S. ;

Robinson, M. ;

Sanghi, N. ;

Smith, N. J. T. ;

Snowden-Ifft, D. P. ;

Spooner, N. J. C. ;

Sumner, T. J. ;

Turk, J. ;

Tziaferi, E. .

ASTROPARTICLE PHYSICS, 2007, 28 (4-5) :409-421

[7]

Colle R., 1995, Radioact. Radiochem, V6, P16

[8]

*COMM PHYS UN, 2003, CONN QUARKS COSM 11

[9] Spin-dependent limits from the DRIFT-IId directional dark matter detector [J].

Daw, E. ;

Fox, J. R. ;

Gauvreau, J. -L. ;

Ghag, C. ;

Harmon, L. J. ;

Gold, M. ;

Lee, E. R. ;

Loomba, D. ;

Miller, E. H. ;

Murphy, A. Stj. ;

Paling, S. M. ;

Landers, J. M. ;

Pipe, M. ;

Pushkin, K. ;

Robinson, M. ;

Snowden-Ifft, D. P. ;

Spooner, N. J. C. ;

Walker, D. .

ASTROPARTICLE PHYSICS, 2012, 35 (07) :397-401

[10] Final Analysis and Results of the Phase II SIMPLE Dark Matter Search [J].

Felizardo, M. ;

Girard, T. A. ;

Morlat, T. ;

Fernandes, A. C. ;

Ramos, A. R. ;

Marques, J. G. ;

Kling, A. ;

Puibasset, J. ;

Auguste, M. ;

Boyer, D. ;

Cavaillou, A. ;

Poupeney, J. ;

Sudre, C. ;

Miley, H. S. ;

Payne, R. F. ;

Carvalho, F. P. ;

Prudencio, M. I. ;

Gouveia, A. ;

Marques, R. .

PHYSICAL REVIEW LETTERS, 2012, 108 (20)

← 1 2 3 →