Cabrera, A. and Adamson, P. and Barker, M and Belias, A. and Boyd, S. and Crone, G. and Drake, G. and Falk, E. and Harris, P. G. and Hartnell, J. and Jenner, L. and Kordosky, M. and Lang, K. and Litchfield, R. P. and Michael, D. and Miyagawa, P. S. and Morse, R. and Murgia, S. and Nichol, R. and Nicholls, T. and Pearce, G. F. and Petyt, D. and Reyna, D. and Saakyan, R. and Shanahan, P. and Smith, C. and Symes, P. and Tagg, N. and Thomas, J. and Vahle, P. and Weber, A. (2009) Comparisons of the MINOS near and far detector readout systems at a test beam. Nuclear Instruments and Methods in Physics Research A, 609 (2-3). pp. 106-113. ISSN 0168-9002 http://resolver.caltech.edu/CaltechAUTHORS:20091130-082003178
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Abstract
MINOS is a long baseline neutrino oscillation experiment that uses two detectors separated by 734 km. The readout systems used for the two detectors are different and have to be independently calibrated. To verify and make a direct comparison of the calibrated response of the two readout systems, test beam data were acquired using a smaller calibration detector. This detector was simultaneously instrumented with both readout systems and exposed to the CERN PS T7 test beam. Differences in the calibrated response of the two systems are shown to arise from differences in response non-linearity, photomultiplier tube crosstalk, and threshold effects at the few percent level. These differences are reproduced by the Monte Carlo (MC) simulation to better than 1% and a scheme that corrects for these differences by calibrating the MC to match the data in each detector separately is presented. The overall difference in calorimetric response between the two readout systems is shown to be consistent with zero to a precision of 1.3% in data and 0.3% in MC with no significant energy dependence.
| Item Type: | Article | ||||||||
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| Additional Information: | © 2009 Elsevier B.V. All rights reserved. Received 30 January 2009. Received in revised form 23 June 2009. Accepted 14 July 2009. Available online 21 July 2009. This work was funded in part by the UK Particle Physics and Astronomy Research Council (PPARC), the US Department of Energy (DoE) and the European Union (EU). We would like to thank CERN for providing the test beams and support. Special thanks are due to L. Durieu and M. Hauschild for their help throughout this project. We are grateful for the engineering support provided by T. Durkin, M. Proga, D. Atree, J. Trevor, J. Hanson, M. Williams, P. Groves and G. Sillman and electronics support from C. Nelson, B. Luebke, T. Fitzpatrick. | ||||||||
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| Subject Keywords: | Neutrino detector calibration Iron-scintillator sampling calorimeter Test beam measurements Readout system | ||||||||
| Record Number: | CaltechAUTHORS:20091130-082003178 | ||||||||
| Persistent URL: | http://resolver.caltech.edu/CaltechAUTHORS:20091130-082003178 | ||||||||
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| Official Citation: | Cabrera, A., et al. "Comparisons of the MINOS near and far detector readout systems at a test beam." Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment 609.2-3 (2009):106-113. | ||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||
| ID Code: | 16822 | ||||||||
| Collection: | CaltechAUTHORS | ||||||||
| Deposited By: | Ruth Sustaita | ||||||||
| Deposited On: | 07 Dec 2009 21:32 | ||||||||
| Last Modified: | 26 Dec 2012 11:35 |
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