Publications
Publication Information
| Title | The CLAS12 Forward Time-of-Flight System |
| Authors | Daniel Carman, Louise Clark, Raffaella De Vita, Gleb Fedotov, Ralf Gothe, Gary Hollis, Robert Miller, Evan Phelps, Ye Tian, Arjun Trivedi, Cyril Wiggins |
| JLAB number | JLAB-PHY-20-2927 |
| LANL number | (None) |
| Other number | DOE/OR/23177-4917 |
| Document Type(s) | (Journal Article) |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | Nuclear Physics (NP) |
| Other Funding: | Department of Energy National Science Foundation |
|
Journal Compiled for Nuclear Instruments & Methods in Physics Research, Section A Volume 960 Page(s) 163629 Refereed | |
| Publication Abstract: | The Forward Time-of-Flight system for the large-acceptance CLAS12 spectrometer in Hall~B at the Thomas Jefferson National Accelerator Facility is described. The system is positioned at distances in the range from 6.2~m to 7.2~m from the beam-target interaction point and spans laboratory polar angles from $5^\circ \to 45^\circ$ and nearly the full azimuth. The system consists of 540 individual scintillation counters with double-ended readout that range in length from 17~cm to 426~cm of discrete widths of 6~cm, 15~cm, and 22~cm, and of discrete thicknesses of 5~cm and 6~cm. The effective counter time resolution for passing charged particles varies from 50~ps for the shortest counters at small angles to 200~ps for the longest counters at large angles. The detectors are part of the forward-angle particle identification system for CLAS12 during offline event reconstruction and are a component of the online data acquisition trigger to select final state event topologies with forward-going charged particles. |
| Experiment Numbers: | |
| Group: | Hall B |
| Document: | |
| DOI: | https://doi.org/10.1016/j.nima.2020.163629 |
| Accepted Manuscript: | ftof-nim.pdf |
| Supporting Documents: | |
| Supporting Datasets: | |