Drift chamber with a c-shaped frame

✍ Scribed by J. Smyrski; Ch. Kolf; H.-H. Adam; A. Budzanowski; R. Czyżykiewicz; D. Grzonka; A. Heczko; M. Janusz; L. Jarczyk; B. Kamys; A. Khoukaz; K. Kilian; P. Kowina; A. Misiak; P. Moskal; W. Oelert; C. Piskor-Ignatowicz; J. Przerwa; C. Quentmeier; T. Rożek; R. Santo; G. Schepers; T. Sefzick; M. Siemaszko; A. Täschner; P. Winter; M. Wolke; P. Wüstner; W. Zipper

• Publisher: Elsevier Science
• Year: 2005
• Tongue: English
• Weight: 362 KB
• Volume: 541
• Category: Article
• ISSN: 0168-9002
• DOI: 10.1016/j.nima.2004.12.006

✦ Synopsis

We present the construction of a planar drift chamber with wires stretched between two arms of a c-shaped aluminum frame. The special shape of the frame allows to extend the momentum acceptance of the COSY-11 detection system towards lower momenta without suppressing the high-momentum particles. The proposed design allows for construction of tracking detectors covering small angles with respect to the beam, which can be installed and removed without dismounting the beam-pipe. For a three-dimensional track reconstruction a computer code was developed using a simple algorithm of hit pre-selection.