Аннотация

The KEDR detector tagging system is a symmetric focusing magnetic spectrometer of small-angle electrons born in the interaction region of the VEPP-4M collider. Using this system, which is designed for studying the two-photon processes, the scattered electrons and positrons energy is measured with a resolution of ΔE/E0= 0.03–0.6% where E0 is the beam energy. Two different methods are employed for calibrating the tagging system energy scale: the first one involves the electron/positron tagging by the energy of the singlebremsstrahlung photon measured in the BGO calorimeter, and the second one is based on the determination of the recoil electrons spectrum edge in the Compton backscattering of monochromatic laser radiation. The technical implementation and the present status of the calibration system are discussed in this paper.

Язык оригиналаанглийский
Страницы (с-по)51-53
Число страниц3
ЖурналPhysics of Particles and Nuclei
Том49
Номер выпуска1
DOI
СостояниеОпубликовано - 1 янв 2018

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