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Construction and cosmic-ray test of the new inner drift chamber for BESIII
| Content Provider | Scilit |
|---|---|
| Author | Xie, Yong-Ji Qin, Zhong-Hua Ma, Xiaoyan Zhang, Jian Wu, Ling-Hui Xie, Wan Dong, Mingyi Dong, Jing Ji, Xiao-Lu Jiang, Xiao-Shan Ou-Yang, Qun Zhu, Ke-Jun Chen, Yuan-Bo |
| Copyright Year | 2016 |
| Description | Journal: Chinese Physics C A new inner drift chamber has been built which can replace the aged part of the BESIII drift chamber when needed. The design of the new inner drift chamber can minimize the ineffective area in the very forward and backward region and hence reduce the background event rate. With this design, the new inner drift chamber is expected to have a longer lifetime and improved performance due to the lower occupancy. The endplates and the cylinder were machined with high precision. Wire stringing was performed after the mechanical structure was assembled, and good quality of wire stringing was ensured by measurement of the tension and leakage current of the wires. After completion of the physical construction of the new chamber, a cosmic-ray test was carried out to test its performance. The results of the cosmic-ray test show that the new inner chamber achieves a spatial resolution of 127 μm and a dE/dx resolution of 6.4%, which satisfies the design specifications. |
| Related Links | http://iopscience.iop.org/article/10.1088/1674-1137/40/9/096003/pdf |
| ISSN | 16741137 |
| e-ISSN | 20586132 |
| DOI | 10.1088/1674-1137/40/9/096003 |
| Journal | Chinese Physics C |
| Issue Number | 9 |
| Volume Number | 40 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2016-09-01 |
| Access Restriction | Open |
| Subject Keyword | Journal: Chinese Physics C Nuclear Energy and Engineering Drift Chamber Cosmic Ray Test |
| Content Type | Text |
| Resource Type | Article |
| Subject | Nuclear and High Energy Physics Instrumentation Astronomy and Astrophysics |
