Improved lifetime of microchannel-plate PMTs

Lehmann, A. et al. (2014) Improved lifetime of microchannel-plate PMTs. Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 766, pp. 138-144. (doi:10.1016/j.nima.2014.04.005)

Full text not currently available from Enlighten.

Abstract

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 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.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Hoek, Mr Matthias and Montgomery, Dr Rachel and Cowie, Dr Euan and Rosner, Professor Guenther
Authors: 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.K., 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., and Suzuki, K.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
Publisher:Elsevier BV
ISSN:0168-9002
ISSN (Online):1872-9576

University Staff: Request a correction | Enlighten Editors: Update this record