Detector KEDR tagger
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- 作者：V.N. Zhilicha ; zhilich@inp.nsk.su ; the KEDR collaboration
- 关键词：Two-photon physics ; Photon tagging ; GEM ; Compton scattering ; KEDR detector
- 刊名：Nuclear Physics B - Proceedings Supplements
- 出版年：2012
- 出版时间：April-June, 2012
- 年：2012
- 卷：225-227
- 期：Complete
- 页码：115-120
- 全文大小：493 K
文摘
The KEDR Tagging System is designed to enhance the detector ability to study the two-photon processes . The collider magnetic elements (dipoles and lenses) form a magnetic spectrometer for the scattered electrons and positrons. Its energies are measured with 8 blocks of the drift tube hodoscope which are placed beside of the vacuum chamber. This allows to determine an invariant mass of the system X with resolution 3-15 Mev for at the beam energies . Recently the TS was upgraded with triple-GEM 2-dimensional detectors and a laser Compton scattering calibration system. The energy resolution for the scattered at the level was demonstrated.