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Improved lifetime of microchannel-plate PMTs

Lehmann, A. ; Britting, A. ; Eyrich, W. ; Uhlig, F. ; Dzhygadlo, R. ; Gerhardt, A. ; Götzen, K. ; Höhler, R. ; Kalicy, G. ; Kumawat, H. ; Lehmann, D. ; Lewandowski, B. ; Patsyuk, M. ; Peters, K. ; Schepers, G. ; Schmitt, L. ; Schwarz, C. ; Schwiening, J. ; Traxler, M. ; Zühlsdorf, M. ; Dodokhov, V.Kh ; Düren, M. ; Föhl, K. ; Hayrapetyan, A. ; Kröck, B. ; Merle, O. ; Rieke, J. ; Cowie, E. ; Keri, T. ; Montgomery, R. ; Rosner, G. ; Achenbach, P. ; Cardinali, M. ; Hoek, M. ; Lauth, W. ; Sfienti, C. ; Thiel, M. ; Bühler, P. ; Gruber, L. ; Marton, J. ; Suzuki, K.

Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 2014-12, Vol.766, p.138-144 [Periódico revisado por pares]

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Título:
Improved lifetime of microchannel-plate PMTs
Autor: Lehmann, A. ; Britting, A. ; Eyrich, W. ; Uhlig, F. ; Dzhygadlo, R. ; Gerhardt, A. ; Götzen, K. ; Höhler, R. ; Kalicy, G. ; Kumawat, H. ; Lehmann, D. ; Lewandowski, B. ; Patsyuk, M. ; Peters, K. ; Schepers, G. ; Schmitt, L. ; Schwarz, C. ; Schwiening, J. ; Traxler, M. ; Zühlsdorf, M. ; Dodokhov, V.Kh ; Düren, M. ; Föhl, K. ; Hayrapetyan, A. ; Kröck, B. ; Merle, O. ; Rieke, J. ; Cowie, E. ; Keri, T. ; Montgomery, R. ; Rosner, G. ; Achenbach, P. ; Cardinali, M. ; Hoek, M. ; Lauth, W. ; Sfienti, C. ; Thiel, M. ; Bühler, P. ; Gruber, L. ; Marton, J. ; Suzuki, K.
Assuntos: Charge ; Charge materials ; Countermeasures ; Detectors ; Devices ; Particle accelerators ; Photons ; Quantum efficiency
É parte de: Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 2014-12, Vol.766, p.138-144
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: The charged particle identification at the PANDA experiment will be mainly performed with DIRC detectors. Because of their advantageous properties the preferred photon sensors are MCP-PMTs. However, until recently these devices showed serious aging problems which resulted in a diminishing quantum efficiency (QE) of the photo cathode. By applying innovative countermeasures against the aging causes, the manufacturers recently succeeded in drastically improving the lifetime of MCP-PMTs. Especially the application of an ALD coating technique to seal the material of the micro-channels proves very powerful and results in a lifetime of approximately 6C/cm2 integrated anode charge without a substantial QE degradation for the latest PHOTONIS XP85112. This paper will present a comparative measurement of the lifetime of several older and recent MCP-PMTs demonstrating this progress.
Idioma: Inglês

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Improved lifetime of microchannel-plate PMTs

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