at1500V-Phenix.ppt

ShinIchi Esumi for the high pt upgrade team collaboration meeting in Nashville, Jun 10-13 2003 * Aerogel Upgrade Status ShinIchi Esumi for the high pt upgrade team Introduction Design parameters Readout electronics Beam test with prototypes Simulation Plan 　 　　　　 ５～９ 　　１～５ n ～ 1.01 ACC 　　　　 １７～ 　　　 ５～１７ n = 1.00044 RICH ０～５ ０～２．５ σ～ 100ps TOF K / p π/ K n=1.0112 z (beam) direction azimuthal angle vertex particle track 11cm 11cm 22cm Aerogel air n=1.0112 +- 0.0002 Prototype in run3-pp 3150 V DEBE33F472ZA3B 4.7 nF C4 500 V DD1464E103P500 High Voltage Ceramic Condenser 10 nF C1 - C3 1/4 W 500 V 250 V MF 1/4 200 k ohm R12 1/4 W 500 V 250 V MF 1/4 330 k ohm R2 - R11 1/2 W 700 V 350 V MF 1/2 Coat-Insulate Fixed Metal Film Resistor 10 k ohm R1 Power rating Dielectric withstanding voltage Maximum working voltage Type Kind Para. Part name Design of Bleeder （Ver. 2） Motoi Inaba Schedule Five types of Bleeder Ver.3 will be delivered in June. We test them and select one for mass-production. Type A B C D E Divider Resistor 330 k ohm 470 k ohm 560 k ohm 680 k ohm 750 k ohm Idling current 0.453 mA 0.318 mA 0.267 mA 0.220 mA 0.200 mA Power consumption 680 mW 478 mW 401 mW 330 mW 300 mW (at 1500 V) (at 1500 V) Comments Hamamatsu Standard Intend to use New bleeders will be soldered with PMTs at Tsukuba Univ. by Motoi INABA. Calibration system using LED LED 200 ohm TTL PHENIX TTL (LED) DRIVER PPG Special category-5 cable. 1 2 3 8 10 9 8 7 6 5 4 3 2 1 Gate of ADC ( ~ 11 p. e.) Output signal of Driver Gate of ADC Input signal (100 [Hz]) TTL DRIVER PMT LED PMT 50 ohm Signals on the bench test Current design of Aerogel Counter Aerogel Counter 160 segments of Aerogel Counter are located in Sector 1 at west arm. 160ch of PMT signals are led to North side, and another 160ch are led to South side. PreAmp 20 PreAmp boards are placed both side of Aerogel Counter. FEE HV rack Racks for FEE and HV modules are located the second fl