MRPC Meeting 202098 H Sako MRPC MRPCTSCESC Slewing

MRPC Meeting 2020/9/8 H. Sako スケジュール 各自報告 MRPC製作について MRPC/TSC/ESC解析

Slewing correction (ESC)

PMT間時間差 • Ch 9を基準 • Wcut>5 ns • vz, vy cut (RPC 1 -RPC 2)

PMT間時間差 • Ch 9を基 準 • Wcut>5 ns • Nhit PMT =0 >=6

Comparison with cuts • PMT 9 -10

Comparison with and w/o slewing cor • PMT 9 -10

Clusteringの試み • 2ヒットのみ、strip番号の差<=2のヒットの み(x, y, z）のweighted meanで”clustering”

RPC 1 TSC RPC 2 Strip # Slat #

RPC 1 RPC２ TSC

y-TSC Before calibration y-TSC Projected-y After calibration Projected-y

Chi 2 -y w/calibration

After calibration Projected z at X=0 plane Projected y at X=0 plane

v(RPC 1) (mm/ns)= {155. 039, 148. 699, 144. 404, 149. 813, 150. 943, 153. 257, 149. 813, 158. 103}; V(RPC 2) (mm/ns) = {153. 257, 162. 602, 145. 985, 149. 813, 144. 928, 147. 601, 143. 885, 153. 846}; V(TSC) (mm/ns) = {89. 8876, 79. 2079, 76. 1905, 79. 2079, 73. 3945, 72. 7273};

R=

E 325

Design (by Sakuma) HOD: RPC AC: index=1. 034 TOF: Scinti. +PMT 1 GEM-in GEM-mid GEM-out 15 4 2 AC HOD (=RPC) TOF (=Scinti) 45 3 15 45 1400へ 41

1 1 15 4 2 45 3 3 15 45 43

15 o

15 Generated 4 2 15 w/AC n=1. 034 4 2 3 3 No AC 45 45 15 45 45

Generated bg with AC n=1. 034 4 1 2 45 15 4 2 3 3 15 bg 1 15 45 45

1 15 4 2 3 15 45 45

Dimension of E 16 PRC • Almost same structure as BGOegg-RPC but slightly shorter length HVケーブル用穴Φ 3 （全 2か所） 65 Total length=880 ガスフロー 260 65 φ3 Amp part lids can be opened (with O-rings) Space for amp =55 each Cathode PCB (230 x 770)： 2 Anode PCB (230 x 770)： 1 Honeycomb (6 x 240 x 750): 2 G-10 plate (0. 5 x 240 x 770): 4 Glass (0. 4 x 230 x 750)： 12 Carbon tape (230 x 734) 50

893 853

RPC structure (26 mm pitch Amp) Al chassis Connection betw. signal line of Amp PCB and RPC strip using contact pad(S 7022010) （soldered to anode PCB） Cu angle for GND connection between anode and cathode PCBs Same pattern of signal/ground as anode PCB for impedance matching (50Ω) Anode PCB (bottom side) 0. 5 25. 5 Glue for gas tightness Soldering or conductive glue between Amp PCB and chassis Amplifier PCB Screws through cathode PCBs, anode PCB, Amp PCB and Cu spacer Screw for electric contact between Amp PCB ground and Cu angle with 2. 1 mmf through holes 5

55

ＲＰＣ断面 Honeycomb (t=5, 両側t=0. 5 G-10) 260 7 ６ ~23 245 7 ６ Honeycomb (t=5, 両側t=0. 5 G-10) 230 約11(ガラス+ Anode/cathod PCB） M 5 x 11? 樹脂製ねじ • 糸の張り方 56

Request for 26 mm pitch amplifier 1. Make space w/o components and GND pattern in the bottom face between MCX and Lemo connector with 6 mm width Make pace w/o components In the same position in the top face 2. New 1. 1 mmf through holes for pins to determine the relative positions between the Al plates and the PCB. 3. Move two 3. 1 mmf through holes to the edge (~5 mm distance from the edge for example) 4. 5 4. Increase diameter of through holes φ1. 5 φ2. 1 Increase the distance from the center to 4. 5 mm We will not need these 4 through holes 58

59

Old New

For Hayashi-REPIC (2020/8/19)

Dimension of E 16 PRC • Almost same structure as BGOegg-RPC but slightly shorter length HVケーブル用穴Φ 3 （全 2か所） 65 Total length=880 ガスフロー 260 65 φ3 Amp part lids can be opened (with O-rings) Space for amp =55 each Cathode PCB (230 x 770)： 2 Anode PCB (230 x 770)： 1 Honeycomb (6 x 240 x 750): 2 G-10 plate (0. 5 x 240 x 770): 4 Glass (0. 4 x 230 x 750)： 12 Carbon tape (230 x 734) 67

19 Request of additional through holes We request two more 3. 1 mmφ through holes