(This file is ~csi/collar/collar_doc.txt) 7/3/01 Upstream: PMT HV Signal Split FERA Initial Fera HV S/N cable cable row-col cable HV chan chan ----- ----- ------ ------- ----- ------ ------- ----- COM1 29054 ECM1 ECM1 7-21 87-00 -1850V 16,15,0 5,8,0 COM2 29022 ECM2 ECM2 8-21 87-01 -2050 16,15,1 5,8,1 COM3 28966 ECM3 ECM3 9-21 87-02 -1810 16,15,2 5,8,2 COM4 30864 ECM4 ECM4 9-20 87-03 -1800 16,15,3 5,8,3 COM5 28270 ECM5 ECM5 9-19 87-04 -1890 16,15,4 5,8,4 COM6 24981 ECM6 ECM6 9-18 87-05 -1970 16,15,5 5,8,5 COM7 30673 ECM7 ECM7 9-17 87-06 -1810 16,15,6 5,8,6 COM8 30865 ECM8 ECM8 10-21 87-07 -1700 16,15,7 5,8,7 COM9 30953 ECM9 ECM9 10-20 87-08 -1750 16,15,8 5,8,8 COM10 28739 ECM10 ECM10 10-19 87-09 -1850 16,15,9 5,8,9 COM11 28968 ECM11 ECM11 10-18 87-10 -1810 16,15,10 5,8,10 COM12 28697 ECM13 ECM12 10-17 87-11 -1850 16,15,11 5,8,11 Downstream: PMT HV Signal Split FERA Initial Fera HV S/N cable cable row-col cable HV chan chan ----- -------- ------ ------ ----- ------ ----- ----- COP1 28942 ECP1 ECP1 17-21 88-00 -1750V 16,16,0 5,9,0 COP2 27301 ECP2 ECP2 18-21 88-01 -1900 16,16,1 5,9,1 COP3 29127 ECP3 ECP3 19-21 88-02 -2000 16,16,2 5,9,2 COP4 28931 ECP4 ECP4 19-20 88-03 -1800 16,16,3 5,9,3 COP5 28819 ECP5 ECP5 19-19 88-04 -1900 16,16,4 5,9,4 COP6 28953 ECP6 ECP6 19-18 88-05 -1800 16,16,5 5,9,5 COP7 28923 ECP9 ECP7 19-17 88-06 -1750 16,16,6 5,9,6 COP8 28941 ECP10 ECP8 20-21 88-07 -1750 16,16,7 5,9,7 COP9 28705 ECP11 ECP9 20-20 88-08 -1900 16,16,8 5,9,8 COP10 28730 ECP12 ECP10 20-19 88-09 -1800 16,16,9 5,9,9 COP11 28710 ECP13 ECP11 20-18 88-10 -1900 16,16,10 5,9,10 COP12 28945 ECP14 ECP12 20-17 88-11 -1750 16,16,11 5,9,11 Notes: 1) initial HV settings were set to make maximum pulse height from Bi source (approx. 1 MeV deposited) to be ~200 mV at upstairs end of cable (before the splitter). 2) The correspondence between sector number and physical location follows the usual convention. Sector 1 is to your left looking downstream; sector numbering increases clockwise looking downstream. 3) The new downstream collar is readout with fibers. The gains of the PMTs have been equalized based on cosmic data. 4) The collar uses a BV splitter with a split of 1:2:1.2 (discriminator:Fera:analog_sum) 5) The new upstream collar is readout with fibers. The gains of the PMTs have been equalized based on Ru106 test.