منابع مشابه
Status of the Pep–ii B-factory High Energy Ring*
The 9 GeV High Energy Ring (HER) of the PEP-II B Factory is an electron storage ring under construction at SLAC. Significant progress has been made in the last year on all systems. As of mid 1996, all 192 dipoles have been installed, with installation of the quadrupoles underway. The vacuum system, for design currents up to 3 A average, is in production using a recently commissioned e-beam weld...
متن کاملPION PAIR PRODUCTION FROM 77 COLLISIONS AT THE SLAC e + e - STORAGE RING PEP
We have studied several features of the production of charged hadron pairs by qy collisions. We have measured the j” partial width I”,,,(Q2) for & in the range 0 < Q2 < 1.4 Gep/c2, and obtained $.,rr = 2.52 f 0.13 f 0.38 keV at q2 = 0. The measured Q2 dependence is in agreement with the generalized vector dominance model. The cross section for 77 ---) (?r+n+ K+K-) in the mass region 1.6 GeV/c2 ...
متن کاملA Test of Planar Spark Counters at the Pep Storage Ring*
A test of planar spark counters (PSC’s.1 at the PEP electron positron storage ring showed the following. PSC’s can be used under harsh experimental conditions without long term degradation of resolution. On line time-of-flight resolutions were &low 200 psec, coordinate resolutions better than 4 mm, both limited to these values by the resistivity of the semi-conducting glass and the electronics ...
متن کاملStatus of the Rf System for the Anka Storage Ring
The RF system for the ANKA storage ring has two plants, each plant consists of one 250 kW transmitter at 500 MHz feeding two cavities, with all the peripherals. The different components, namely the high voltage power supply, the klystron, the waveguide system and the cavities, are now under construction and test. The HV power supply is provided by Jäger (Germany), and is been built on site. The...
متن کاملPep-ii Status*
PEP-II and BaBar have just finished run 7, the last run of the SLAC B-factory. PEP-II was one of the few highcurrent e+ecolliding accelerators and holds the present world record for stored electrons and stored positrons. It has stored 2.07 A of electrons, nearly 3 times the design current of 0.75 A and it has stored 3.21 A of positrons, 1.5 times more than the design current of 2.14 A. Highcurr...
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ژورنال
عنوان ژورنال: IEEE Transactions on Nuclear Science
سال: 1981
ISSN: 0018-9499
DOI: 10.1109/tns.1981.4331573