Вы находитесь на старом сайте НГУ. Перейти на новый сайт

ISSN - 09205632, Nuclear Physics B - Proceedings Supplements, 2012, vol. 225-227, p. 309-314

The beam energy measurement system for the Beijing electron-positron collider

Zhang J. Y., Abakumova E. V., Achasov M. N., Blinov V. E., Cai X., Dong H. Y., Fu C. D., Harris F. A., Kaminsky V. V., Krasnov A. A., Liu Q., Mo X. H., Muchnoi N. Yu, Nikolaev I. B., Qin Q., Qu H. M., Olsen S. L., Pyata E. E., Shamov A. G., Shen C. P., Todyshev K. Yu, Varner G. S., Wang Y. F., Xiao Q., Xu J. Q., Zhang T. B., Zhang Y. H., Zhukov A. A.

The beam energy measurement system (BEMS) for the upgraded Beijing electron-positron collider BEPC-II is described. The system is based on measuring the energies of Compton back-scattered photons. The relative systematic uncertainty of the electron and positron beam energy determination is estimated as 2{dot operator}10 -5. © 2012 Elsevier B.V..