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Lobkowicz, F.; Becker, U.; Berkelman, K.; Green, M.A.; Groves, E.; Halbach, K.; Kadyk, J.; Mistry, N.; Sessoms, A.; Strovink, M.
Proceedings of the 1975 PEP summer study, July 28--August 20, 1975, Berkeley, California1975
Proceedings of the 1975 PEP summer study, July 28--August 20, 1975, Berkeley, California1975
AbstractAbstract
[en] Two basic types of detectors can be considered for use on PEP and other intersecting storage ring devices. Both will utilize solenoidal fields with flux paths parallel to the direction of the beams. One type, the conventional superconducting solenoid, permits physics to be performed only inside the coil in the magnetic field. The second type based on high current density technology permits physics to be performed both inside and outside the magnet coil. Two kinds of high current density magnets can be considered. One is based on a continuous thin coil of uniform radiation thickness; the second is based on lumped coils which have regions of high radiation thickness and regions of near zero radiation thickness. For many experiments the high current density magnets could result in substantial cost savings in both capital and operating funds. The central induction of such magnets is 2 T or less, and the maximum practical diameter is 2 to 3 meters. Each of the two types of high current density magnets has advantages for some kinds of experiments. If high central inductions and/or large field volumes are required, there is probably no practical alternative at this time to the conventional low current density superconducting solenoid. Since the performance parameters of the high current density magnets are not fully understood, experimental work now under way at LBL will establish the practical limits of operation for magnets using high current density intrinsically stable superconductors
Original Title
Magnetic spectrometer facility for PEP storage rings
Secondary Subject
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California Univ., Berkeley (USA). Lawrence Berkeley Lab; p. 46-70; Dec 1975
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