Revision as of 21:34, 3 June 2013

Introduction

The SoLID layouts with different configuration are shown here.

coil center at z=0, positive Z axis is going downstream along beam, x and y axis is according to right hand rule.

CLEOv8 field map is based on more realistic design with CLEO-II.

The magnet and yoke will fit both PVDIS and SIDIS/JPsi configuration.

The detector has various small change to fit into new design, please refer to the change at slide 7 and 8 of CLEOv8 update pptx pdf

SIDIS/JPsi	Z center (cm)	Z range (cm)	Z length (cm)	R range (cm)	R length (cm)	area (m2)	weight(metric t)	comment
target (SIDIS)	-350	(-370,-330)	40	(0,1)	1
target collimator upstream (SIDIS)	-355	(-360,-350)	10	Rin(1.2,2.4),Rout(4.9,9.8)				made of W
target collimator downstream (SIDIS)	-300	(-305,-295)	10	Rin(5.5,6.8),Rout(21.9,26.8)				made of W
GEM	Z(-175,-150,-119,-68,5,92)		1 per plane	Rin(45,26,30,37,46,58), Rout(80,93,107.5,135,98,122)	(35,67,77.5,98,52,64)
largeangle Calorimeter	-40	Z(-65,-15)	50	Rin(75, 88),Rout(140, 140)	(66,50)	4.5	9 (25%lead + 75%scintillator)
absorber largeangle	70	Z(60,80)	20	Rin(107.5,112.8),Rout(140,140)	(32.5,27.2)	2.3	9 (Tungsten)
absorber forwardangle	140	Z(100,180)	80	Rin(16,19),Rout(50,60)	(34,39)	0.85	13 (Tungsten)	can be smaller
lightgas Cherenkov		Z(97,194,209,301)	204	Rin(58,65,67,85), Rout(127,144,155,265)	(69,79,88,180)
heavygas Cherenkov	351	Z(306,396)	90	Rin(86,98),Rout(265,265)	(179,167)
MRPC	400		1	(99,201)	101
forwardangle Calorimeter	430	(405,455)	50	(100,215)	115	11.4	23 (25%lead + 75%scintillator)	may share supporting with PVDIS FAEC
Space at back		(455,485)	30					partially for EC readout
Beamline upstream		Z(-675,-375)	300	Rin(1.22,1.22), Rout(1.25,1.25)	0.03
Beamline downstream		Z(-325,500)	825	Rin(1.7,28.9),Rout(1.8,29.0)	0.1

PVDIS	Z center (cm)	Z range (cm)	Z length (cm)	R range (cm)	R length (cm)	area (m2)	weight (t)	comment
target	10	(-10, 30)	40	(0, 1)	1
Baffle	Z(40,68,96,124,152,180)		9 per plate	Rin(3.9,15.3,26.6,37.9,49.2,60.4) Rout(34.7,54.3,73.8,93.3,112.8,132.0)	(30.8,39,47.2,93,55.4,63.6,71.6)		15	Eugene's baffle for BaBar
GEM	Z (157.5,185.5,306,315)		1 per plate	Rin(56,67,113,117),Rout(108,129,215,222)	(52,62,102,105)
lightgas Cherenkov		Z(194,209,301)	107	Rin(65,67,85),Rout(144,155,265)	(79,88,180)
forwardangle Calorimeter	345	(320,370)	50	(118,261)	143	17	34 (25%lead + 75%scintillator)	may share supporting with SIDIS FAEC
Space at back		370 - 485	115					partially for EC readout
Beamline upstream		Z(-675,-15)	650	Rin(1.22,1.22), Rout(1.25,1.25)	0.03
Beamline downstream		Z(35,500)	465	Rin(1.4,28.9),Rout(1.5,29.0)	0.1

The detectors converted from comgeant configuration at the proposal stage, then modified with longer Cherenkov.

@@ Line 7: / Line 7: @@
   coil center at z=0, positive Z axis is going downstream along beam, x and y axis is according to right hand rule.
-= current =
+= current (some numbers are outdated as 2013/05, please check with Zhiwen) =
 == SoLID CLEO (based on CLEOv8 field map) ==