E907 Gas Matrix and Usage

Terry Tope

Chamber sizes, flow rates,and gas mixture estimates for E907 gas system.

Detector		Gas Mixture		Chamber				Gas Component		Cost
		%	Component	Volume	Hydrogen Equivalence	Operating Flow		Operating Flow		Premix	Mix From Bottles	Mix From Bottles & Argon Dewar
		%	Component	ft3		cc/min	ft3/month	cc/min	ft3/month	$/month
Chamber 1 (E690)	Magic #1	82	Argon	2.48	0.00997686	50	71	41	58	5090	76	64
		15	Isobutane					7.5	11
		3	Methylal					1.5	2
Chamber 2 (E690)		82	Argon	1.78	0.00716081	50	71	41	58
		15	Isobutane					7.5	11
		3	Methylal					1.5	2
Chamber 3 (E690)		82	Argon	1.78	0.00716081	50	71	41	58
		15	Isobutane					7.5	11
		3	Methylal					1.5	2
Chamber 4 (E690)		82	Argon	1.78	0.00716081	50	71	41	58
		15	Isobutane					7.5	11
		3	Methylal					1.5	2
Chamber 5 (Iowa)	Magic #2	75	Argon	1.74	0.01031159	400	570	300	427	?	471	460
		25	Isobutane					100	142
		0.15	Freon 13B1					0.6	1
		1	Isopropyl					4	6
Chamber 6 (Iowa)		75	Argon	1.04	0.00616325	400	570	300	427
		25	Isobutane					100	142
		0.15	Freon 13B1					0.6	1
		1	Isopropyl					4	6
TPC		90	Argon	70.63	0.05152148	1000	1424	900	1282	817	171	156
		10	Methane					100	142
NCAL		77.4	Argon	7	0.00439133	500	712	387	551	?	572	565
		8.6	Methane					43	61
		14	CF4					70	100
RICH		100	CO2	1780 ft3	0	?	?
Cerenkov		100	C4F10	130 ft3	0	?	?
Beamline Chambers			?	?	?	?	?
Beam CKOV 1			C4F10	18 ft3	0	?	?
			Nitrogen
			Helium
Beam CKOV 2			C4F10	18 ft3	0	?	?
			Nitrogen
			Helium

Total Hydrogen Equivalence

0.103846935 kg (Must be less than 0.6 kg).

Monthly Usage

	Scenario
	Premix	Bottles	Dewars
Argon		11.78	0.61
Isobutane		1.45
Methane		0.71
P10	6.39
CO2
Nitrogen
Helium
CF4		0.50	0.50
C4F10
Magic #1 premix	17.80