TY - CONF AU - Zholents, A. A. AU - Decking, W. TI - Non-Gaussian Beam Tails at the Advanced Light Source IS - LBL-45392 CY - Hamburg PB - DESY M1 - PUBDB-2016-02941 M1 - LBL-45392 M1 - LBNL-45392 M1 - DESY-M-00-04W SP - 723-725 PY - 2000 AB - The coordinate and energy distributions of the electron beam density at the Advanced Light Source have been obtained from measurements of the beam lifetime at various storage-ring apertures in the horizontal and vertical planes. It is shown that these distributions have a Gaussian core extended approximately up to five rms beam sizes. Beyond this point the electron density is defined by the electron scattering on the residue gas and electron intra-beam scattering and decreases as the cubic of the distance from the beam center. This behavior continues approximately up to ≈ 30 rms beam sizes in the horizontal plane and ≈ 60 rms beam sizes in the vertical plane. T2 - The 7th European Particle Accelerator Conference EPAC 2000 CY - 26 Jun 2000 - 30 Jun 2000, Vienna (Austria) Y2 - 26 Jun 2000 - 30 Jun 2000 M2 - Vienna, Austria KW - talk: Vienna 2000/06/26 (INSPIRE) KW - electron: storage ring (INSPIRE) KW - synchrotron radiation: particle source (INSPIRE) KW - beam: lifetime (INSPIRE) KW - beam: background (INSPIRE) KW - beam: multiple scattering (INSPIRE) KW - gas: scattering (INSPIRE) KW - beam emittance (INSPIRE) KW - betatron oscillation (INSPIRE) KW - Berkeley ES (INSPIRE) LB - PUB:(DE-HGF)29 ; PUB:(DE-HGF)8 UR - https://bib-pubdb1.desy.de/record/301874 ER -