Development of wavelength shifter coated reflectors for the ArDM argon dark matter detector

V. Boccone; P. K. Lightfoot; K. Mavrokoridis; C. Regenfus; C. Amsler; A. Badertscher; A. Bueno; H. Cabrera; M. C. Carmona-Benitez; M. Daniel; E. J. Daw; U. Degunda; A. Dell'Antone; A. Gendotti; L. Epprecht; S. Horikawa; L. Kaufmann; L. Knecht; M. Laffranchi; C. Lazzaro; D. Lussi; J. Lozano; A. Marchionni; A. Melgarejo; P. Mijakowski; G. Natterer; S. Navas-Concha; P. Otyugova; M. De Prado; P. Przewlocki; F. Resnati; M. Robinson; J. Rochet; L. Romero; E. Rondio; A. Rubbia; N. J.C. Spooner; T. Strauss; J. Ulbricht; T. Viant

doi:10.1088/1748-0221/4/06/P06001

Development of wavelength shifter coated reflectors for the ArDM argon dark matter detector

V. Boccone, P. K. Lightfoot, K. Mavrokoridis, C. Regenfus, C. Amsler, A. Badertscher, A. Bueno, H. Cabrera, M. C. Carmona-Benitez, M. Daniel, E. J. Daw, U. Degunda, A. Dell'Antone, A. Gendotti, L. Epprecht, S. Horikawa, L. Kaufmann, L. Knecht, M. Laffranchi, C. LazzaroD. Lussi, J. Lozano, A. Marchionni, A. Melgarejo, P. Mijakowski, G. Natterer, S. Navas-Concha, P. Otyugova, M. De Prado, P. Przewlocki, F. Resnati, M. Robinson, J. Rochet, L. Romero, E. Rondio, A. Rubbia, N. J.C. Spooner, T. Strauss, J. Ulbricht, T. Viant

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Abstract

To optimise the design of the light readout in the ArDM 1-ton liquid argon dark matter detector, a range of reflector and WLS coating combinations were investigated in several small setups, where argon scintillation light was generated by radioactive sources in gas at normal temperature and pressure and shifted into the blue region by tetraphenyl butadiene (TPB). Various thicknesses of TPB were deposited by spraying and vacuum evaporation onto specular 3M ^TM-foil and diffuse Tetratex® (TTX) substrates. Light yields of each reflector and TPB coating combination were compared. Reflection coefficients of TPB coated reflectors were independently measured using a spectroradiometer in a wavelength range between 200 and 650 nm. WLS coating on the PMT window was also studied. These measurements were used to define the parameters of the light reflectors of the ArDM experiment. Fifteen large 120 × 25 cm² TTX sheets were coated and assembled in the detector. Measurements in argon gas are reported providing good evidence of fulfilling the light collection requirements of the experiment.

Original language	English (US)
Article number	P06001
Journal	Journal of Instrumentation
Volume	4
Issue number	6
DOIs	https://doi.org/10.1088/1748-0221/4/06/P06001
State	Published - 2009

All Science Journal Classification (ASJC) codes

Instrumentation
Mathematical Physics

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Boccone, V., Lightfoot, P. K., Mavrokoridis, K., Regenfus, C., Amsler, C., Badertscher, A., Bueno, A., Cabrera, H., Carmona-Benitez, M. C., Daniel, M., Daw, E. J., Degunda, U., Dell'Antone, A., Gendotti, A., Epprecht, L., Horikawa, S., Kaufmann, L., Knecht, L., Laffranchi, M., ... Viant, T. (2009). Development of wavelength shifter coated reflectors for the ArDM argon dark matter detector. Journal of Instrumentation, 4(6), Article P06001. https://doi.org/10.1088/1748-0221/4/06/P06001

@article{36540a0ffc50415fb53a9ac0a857b37d,

title = "Development of wavelength shifter coated reflectors for the ArDM argon dark matter detector",

abstract = "To optimise the design of the light readout in the ArDM 1-ton liquid argon dark matter detector, a range of reflector and WLS coating combinations were investigated in several small setups, where argon scintillation light was generated by radioactive sources in gas at normal temperature and pressure and shifted into the blue region by tetraphenyl butadiene (TPB). Various thicknesses of TPB were deposited by spraying and vacuum evaporation onto specular 3M TM-foil and diffuse Tetratex{\textregistered} (TTX) substrates. Light yields of each reflector and TPB coating combination were compared. Reflection coefficients of TPB coated reflectors were independently measured using a spectroradiometer in a wavelength range between 200 and 650 nm. WLS coating on the PMT window was also studied. These measurements were used to define the parameters of the light reflectors of the ArDM experiment. Fifteen large 120 × 25 cm2 TTX sheets were coated and assembled in the detector. Measurements in argon gas are reported providing good evidence of fulfilling the light collection requirements of the experiment.",

author = "V. Boccone and Lightfoot, {P. K.} and K. Mavrokoridis and C. Regenfus and C. Amsler and A. Badertscher and A. Bueno and H. Cabrera and Carmona-Benitez, {M. C.} and M. Daniel and Daw, {E. J.} and U. Degunda and A. Dell'Antone and A. Gendotti and L. Epprecht and S. Horikawa and L. Kaufmann and L. Knecht and M. Laffranchi and C. Lazzaro and D. Lussi and J. Lozano and A. Marchionni and A. Melgarejo and P. Mijakowski and G. Natterer and S. Navas-Concha and P. Otyugova and {De Prado}, M. and P. Przewlocki and F. Resnati and M. Robinson and J. Rochet and L. Romero and E. Rondio and A. Rubbia and Spooner, {N. J.C.} and T. Strauss and J. Ulbricht and T. Viant",

year = "2009",

doi = "10.1088/1748-0221/4/06/P06001",

language = "English (US)",

volume = "4",

journal = "Journal of Instrumentation",

issn = "1748-0221",

publisher = "IOP Publishing Ltd.",

number = "6",

}

Boccone, V, Lightfoot, PK, Mavrokoridis, K, Regenfus, C, Amsler, C, Badertscher, A, Bueno, A, Cabrera, H, Carmona-Benitez, MC, Daniel, M, Daw, EJ, Degunda, U, Dell'Antone, A, Gendotti, A, Epprecht, L, Horikawa, S, Kaufmann, L, Knecht, L, Laffranchi, M, Lazzaro, C, Lussi, D, Lozano, J, Marchionni, A, Melgarejo, A, Mijakowski, P, Natterer, G, Navas-Concha, S, Otyugova, P, De Prado, M, Przewlocki, P, Resnati, F, Robinson, M, Rochet, J, Romero, L, Rondio, E, Rubbia, A, Spooner, NJC, Strauss, T, Ulbricht, J & Viant, T 2009, 'Development of wavelength shifter coated reflectors for the ArDM argon dark matter detector', Journal of Instrumentation, vol. 4, no. 6, P06001. https://doi.org/10.1088/1748-0221/4/06/P06001

TY - JOUR

T1 - Development of wavelength shifter coated reflectors for the ArDM argon dark matter detector

AU - Boccone, V.

AU - Lightfoot, P. K.

AU - Mavrokoridis, K.

AU - Regenfus, C.

AU - Amsler, C.

AU - Badertscher, A.

AU - Bueno, A.

AU - Cabrera, H.

AU - Carmona-Benitez, M. C.

AU - Daniel, M.

AU - Daw, E. J.

AU - Degunda, U.

AU - Dell'Antone, A.

AU - Gendotti, A.

AU - Epprecht, L.

AU - Horikawa, S.

AU - Kaufmann, L.

AU - Knecht, L.

AU - Laffranchi, M.

AU - Lazzaro, C.

AU - Lussi, D.

AU - Lozano, J.

AU - Marchionni, A.

AU - Melgarejo, A.

AU - Mijakowski, P.

AU - Natterer, G.

AU - Navas-Concha, S.

AU - Otyugova, P.

AU - De Prado, M.

AU - Przewlocki, P.

AU - Resnati, F.

AU - Robinson, M.

AU - Rochet, J.

AU - Romero, L.

AU - Rondio, E.

AU - Rubbia, A.

AU - Spooner, N. J.C.

AU - Strauss, T.

AU - Ulbricht, J.

AU - Viant, T.

PY - 2009

Y1 - 2009

N2 - To optimise the design of the light readout in the ArDM 1-ton liquid argon dark matter detector, a range of reflector and WLS coating combinations were investigated in several small setups, where argon scintillation light was generated by radioactive sources in gas at normal temperature and pressure and shifted into the blue region by tetraphenyl butadiene (TPB). Various thicknesses of TPB were deposited by spraying and vacuum evaporation onto specular 3M TM-foil and diffuse Tetratex® (TTX) substrates. Light yields of each reflector and TPB coating combination were compared. Reflection coefficients of TPB coated reflectors were independently measured using a spectroradiometer in a wavelength range between 200 and 650 nm. WLS coating on the PMT window was also studied. These measurements were used to define the parameters of the light reflectors of the ArDM experiment. Fifteen large 120 × 25 cm2 TTX sheets were coated and assembled in the detector. Measurements in argon gas are reported providing good evidence of fulfilling the light collection requirements of the experiment.

AB - To optimise the design of the light readout in the ArDM 1-ton liquid argon dark matter detector, a range of reflector and WLS coating combinations were investigated in several small setups, where argon scintillation light was generated by radioactive sources in gas at normal temperature and pressure and shifted into the blue region by tetraphenyl butadiene (TPB). Various thicknesses of TPB were deposited by spraying and vacuum evaporation onto specular 3M TM-foil and diffuse Tetratex® (TTX) substrates. Light yields of each reflector and TPB coating combination were compared. Reflection coefficients of TPB coated reflectors were independently measured using a spectroradiometer in a wavelength range between 200 and 650 nm. WLS coating on the PMT window was also studied. These measurements were used to define the parameters of the light reflectors of the ArDM experiment. Fifteen large 120 × 25 cm2 TTX sheets were coated and assembled in the detector. Measurements in argon gas are reported providing good evidence of fulfilling the light collection requirements of the experiment.

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U2 - 10.1088/1748-0221/4/06/P06001

DO - 10.1088/1748-0221/4/06/P06001

M3 - Article

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SN - 1748-0221

VL - 4

JO - Journal of Instrumentation

JF - Journal of Instrumentation

IS - 6

M1 - P06001

ER -

Development of wavelength shifter coated reflectors for the ArDM argon dark matter detector

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