Publications
Publication Information
| Title | The CLAS12 Drift Chamber System |
| Authors | Mac Mestayer, Krishna Adhikari, Robert Bennett, Stephen Bueltmann, Taya Chetry, S. Christo, Morgan Cook IV, R. Cuevas, Gail Dodge, Tony Forest, George Jacobs, Thomas Hartlove, Timothy Hayward, L. Kabir, Sebastian Kuhn, Dustin McNulty, Joseph Newton, William Taylor, Lawrence Weinstein, Veronique Ziegler |
| JLAB number | JLAB-PHY-20-2931 |
| LANL number | (None) |
| Other number | DOE/OR/23177-4914 |
| Document Type(s) | (Journal Article) |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | Nuclear Physics (NP) |
|
Journal Compiled for Nuclear Instruments & Methods in Physics Research, Section A Volume 959 Page(s) 163518 Refereed | |
| Publication Abstract: | The CEBAF Large Acceptance Spectrometer at 12~GeV (CLAS12) is located in Hall~B, one of the experimental halls at Jefferson Lab. The forward part of CLAS12 is built around a superconducting toroidal magnet. The six coils of the toroid divide the detector azimuthally into six sectors. Each sector contains three multi-layer drift chambers for reconstructing the trajectories of charged particles originating from a fixed target. Each of the 18 planar chambers has two ``superlayers'' of six layers each, with the wires in the two adjacent superlayers oriented at +/- 6 degrees stereo angles. Each layer has 112 hexagonal cells spanning a range from about 5 degrees to 40 degrees in polar angle. The six-layer structure provides redundancy in track segment finding and good tracking efficiency even in the presence of some individual wire inefficiency. The design, construction, operation, and calibration methods are described, and estimates of the efficiency and resolution are presented from in-beam measurements. |
| Experiment Numbers: | other |
| Group: | Hall B |
| Document: | |
| DOI: | https://doi.org/10.1016/j.nima.2020.163518 |
| Accepted Manuscript: | dc12_nim1.pdf |
| Supporting Documents: | |
| Supporting Datasets: | |