CERN Accelerating science

Published Articles
Report number	RU-94-03 ; OHSTPY-HEP-E-94-023
Title	Performance of a diamond - tungsten sampling calorimeter
Author(s)	Tesarek, R J (Rutgers U., Piscataway) ; Gilman, Ronald A (Rutgers U., Piscataway) ; Kumbartzki, G (Rutgers U., Piscataway) ; Lee, M H (Rutgers U., Piscataway) ; Rutt, P (Rutgers U., Piscataway) ; Sannes, F (Rutgers U., Piscataway) ; Schnetzer, S (Rutgers U., Piscataway) ; Somalwar, S V (Rutgers U., Piscataway) ; Stone, R (Rutgers U., Piscataway) ; Thomson, G B (Rutgers U., Piscataway) ; Franklin, M (Harvard U.) ; Kanda, S (Hawaii U.) ; Morozov, B (KEK, Tsukuba) ; Sugimoto, Y (KEK, Tsukuba) ; Han, S (LLNL, Livermore) ; Kania, D R (LLNL, Livermore) ; Pan, L S (LLNL, Livermore) ; Fujino, D (Ohio State U.) ; Gan, K K (Ohio State U.) ; Hassard, J (Ohio State U.) ; Kagan, H (Ohio State U.) ; Kass, R (Ohio State U.) ; Malchow, R (Ohio State U.) ; Margetides, S (Ohio State U.) ; Palmer, W (Ohio State U.) ; White, Christopher G (Ohio State U.) ; Zhao, S (Ohio State U.) ; Kim, S K (Seoul Natl. U.)
Publication	1994
Imprint	1994
Number of pages	10
In:	Nucl. Instrum. Methods Phys. Res., A 349 (1994) pp.96-105
DOI	10.1016/0168-9002(94)90612-2
Subject category	Detectors and Experimental Techniques
Accelerator/Facility, Experiment	RD42
Abstract	We report here the first measurements of a diamond-tungsten sampling calorimeter. The calorimeter consisted of twenty layers of diamond with one radiation length of tungsten per layer. The diamond layers were grown by chemical vapor deposition and were $3.0 \times 3.0$ cm$^2$ wafers with an average thickness of $500 \mu \rm{m}$. We measured the energy response and resolution $(\sigma_E / E)$ of this calorimeter in 0.5–5.0 GeV electron beams and compared the results with those from a silicon calorimeter of similar construction. Our energy resolution is $\sigma_E / E = (4.7 \pm 2.7) \% / E \oplus (19.13 \pm 0.86) \% / \sqrt{E} \oplus (2.3 \pm 1.8) \%$ for the diamond-tungsten calorimeter, where $\oplus$ indicates addition in quadrature. This is in good agreement with our result for the silicon-tungsten calorimeter of $\sigma_E / E = (3.89 \pm 0.87) \%/ E \oplus (19.73 \pm 0.19) \% / \sqrt{E} \oplus (0.0 \pm 1.6) \%$. We also compare our data with EGS simulations.

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