Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume 373, Issue 3
,
1 May 1996,
Pages 374-386

doi:10.1016/0168-9002(96)00081-2
Copyright © 1996 Published by Elsevier Science B.V.
A Large Acceptance Detector System (LADS) for studies of pion absorption
LADS Collaboration, T. Alteholzc, D. Androi
l, G. Backenstossa, D. Bosnarl, H. Breuere, A. Brkovi
l, H. Döbbelingk, T. Doolingj, W. Fongf, M. Furi
l, P. A. M. Gramd, N. K. Gregoryf, J. P. Haash, A. Hoffartc, C. H. Q. Ingramk, A. Kleinj, K. Kochk, J. Köhlera, B. Kotli
skik, M. Kroedela, G. Kyleh, A. Lehmanna, Z. N. Linh, G. Mahlk, A. O. Mateosf, K. Michaeliank, S. Mukhopadhyayh, T. Petkovi
l, M. Planini
l, R. P. Redwinef, D. Rowntreef, R. Schumacherb, U. Sennhauserk, N.
imi
evi
f, F. D. Smitg, G. van der Steenhoveni, D. R. Tiegerf, R. Trezeciakc, H. Ullrichc, M. Wangh, M. H. Wangh, H. J. Weyerk, a, M. Wildia and K. E. Wilsonf
a University of Basel, CH-4056, Basel, Switzerland
b Carnegie-Mellon University, Pittsburgh, PA 15213, USA
c University of Karlsruhe, D-76128, Karlsruhe, Germany
d LAMPF, Los Alamos, NM 87545, USA
e University of Maryland, College Park, MD 20742, USA
f Massachusetts Institute of Technology, Cambridge, MA 02139, USA
g National Accelerator Center, Faure 7131, South Africa
h New Mexico State University, Las Cruces, NM 88003, USA
i NIKHEF-K, NL-1009 DB, Amsterdam, The Netherlands
j Old Dominion University, Norfolk, VA 23529, USA
k Paul Scherrer Institute, CH-5232, Villigen PSI, Switzerland
l University of Zagreb, HR-41001, Zagreb, Croatia
Received 11 January 1996. Available online 16 February 1999.
Abstract
A Large Acceptance Detector System (LADS) has been designed and built at the Paul Scherrer Institute to study multiparticle final states following pion-nucleus absorption. It consists of a 28-sector cylinder of plastic scintillators of 1.6 m active length and 1.4 m diameter, two cylindrical wire chambers, and two 14-sector plastic scintillator end-caps which close each end. The nearly 4π solid angle coverage of this detector minimizes uncertainties associated with extrapolations over unmeasured regions of phase space. The design and the performance of the LADS detector are presented.