Xu, W. Altinbas, Z. Belomestnykh, S.A. Ben-Zvi, I. DeSanto, L. Deonarine, S. Gassner, D.M. Gupta, R.C. Hahn, H. Hammons, L.R. Ho, C. Jamilkowski, J.P. Kankiya, P. K. Kayran, D. Kellermann, R. Laloudakis, N. Lambiase, R.F. Liaw, C.J. Litvinenko, V. Mahler, G.J. Masi, L. McIntyre, G.T. Miller, T.A. Phillips, D. Ptitsyn, V. Rao, T. Seda, T. Sheehy, B. Smith, K.S. Steszyn, A.N. Tallerico, T.N. Than, R. Tuozzolo, J.E. Wang, E. Weiss, D. Wilinski, M. Zaltsman, A. Zhao, Z. JACoW Geneva, Switzerland 978-3-95450-178-6 10.18429/JACoW-SRF2015-THAA03 English 1001-1005 THAA03 cathode gun SRF cavity electron Contribution to a conference proceedings 2015 2015-12 http://dx.doi.org/10.18429/JACoW-SRF2015-THAA03 http://srf2015.vrws.de/papers/thaa03.pdf The talk shall cover two SRF photoemission electron guns under commissioning at BNL: a 704 MHz elliptical ERL gun and a 112 MHz quarter-wave gun for coherent electron cooling experiment. In particular, the speaker shall report on generating first photoemission beam current from the 704 MHz SRF gun, multipacting issues in the SRF guns, photocathode behavior as well as other commissioning experiences and results.