Walden, P.L.Walton, T.G.Miller, C.A.Yen, S.Abegg, R.Auld, E.G.Campbell, J.R.Chakhalyan, J.Churchman, R.Duncan, F.Falk, W.R.Frekers, D.Green, A.Green, P.E.W.Hartig, M.Hausser, O.Haddock, C.Hicks, K.Hutccheon, D.Jones, G.Korkmaz, Y.Ke.E.J.Khan, N.Ling, A.Lobb, D.E.Naqvi, S.I.H.Olsen, W.C.Opper, A.Otter, A.Punyasena, M.A.Reeve, P.Zhao, J.2014-11-192014-11-1919990168-583Xhttp://repository.kln.ac.lk/handle/123456789/4143A new Q?Q-Clamshell magnetic spectrometer called SASP has been commissioned in the proton hall at TRIUMF. The principal optical characteristics are: a solid angle acceptance of 13.5 msr, a momentum bite of 25%, a momentum resolution of ?p/p=2?10?4, and a maximum central momentum of 720 MeV/c. We describe the optical design, the magnetostatic design, the magnetic field mapping procedure, and the performance of this instrument.Optics; Magnetic spectrometerSri Lanka; Magnetostatics; dispersion; Dispersion relationsarticlePhysics