IHEP 2002 - 29
	V.A.Batarin, A.A.Derevschikov, Yu.V.Fomin, V.N.Grishin, V.A.Kachanov, V.Y.Khodyrev, A.S.Konstantinov, V.I.Kravtsov, V.M.Leontiev, V.A.Maisheev, Ya.A.Matulenko, A.P.Meschanin, Yu.M.Melnick, N.G.Minaev, V.V.Mochalov, D.A.Morozov, L.V.Nogach, P.A.Semenov, K.E.Shestermanov, L.F.Soloviev, V.L.Solovianov, M.N.Ukhanov, , A.N.Vasiliev, A.E.Yakutin, J.Yarba (IHEP, Protvino, Russia), J.Butler (Fermilab, USA), V.Frolov, Y.Kubota (University of Minnesota, USA), S.Stone (Syracuse University, USA)
	Development of a Momentum Determined Electron Beam in the 1-45 GeV Range
	Protvino, 2002.- p.8, figs. 6, table 1, refs.:4.

A beam line for electrons with energies in the range of 1 to 45 GeV, low contamination of hadrons and muons and high intensity up to 10$^6$ per accelerator spill at 27 GeV was setup at U70 accelerator in Protvino, Russia. %A beam line for electrons with energies in the range of 1 to 45 GeV, %high intensity (up to 10$^6$ per accelerator spill) %and low contamination of hadrons and muons was setup at U70 accelerator %in Protvino, Russia. A beam tagging system based on drift chambers with 160~${\mu}$m resolution was able to measure relative electron beam momentum precisely. The resolution $\sigma_p$/p was 0.13\% at 45~GeV where multiple scattering is negligible. This test beam setup provided a possibility to study properties of lead tungstate crystals (PbWO$_4$) for the BTeV experiment at Fermilab.

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