Sextupole Magnet Checks			21S-41
	Date:	Magnet:	Operator(s):
	1/22/2002	21S-41	Michael Rogers
	Notes:

Magnetic Fiducial Coordinates: (inches)
	Fiducial	Z	X	Y
	TB1	-3.7786	4.2321	15.5053
	TB2	3.7468	4.2475	15.5047
	TB3	-3.6439	-10.5193	12.5293	Offset:
	TB4	2.2673	-10.5150	12.5310	0.0000	inches
	TB5	-3.7524	-15.0626	0.0282
	TB6	3.7478	-15.0624	0.0333
	Description:
	Fiducial values based on the measured mechanical center line.

Sextupole Mechanical Centerline Checks:

Mandrel Check (4 Positions):	X (in)	Y (in)
Position 1	-0.0001	0.0006
Position 2	-0.0011	-0.0015
Position 3	0.0040	-0.0021
Position 4	0.0038	-0.0015
Position 5	0.0034	-0.0023
Position 6	0.0015	-0.0025

Mandrel Check (Position 1):	X (in)	Y (in)
Position 1 (1^st check)	0.0024	-0.0005
Position 1 (2^nd check)	-0.0118	0.1007
Position 1 (3^rd check)	0.0011	0.0004
Position 1 (4^th check if necc)	NA	NA
Position 1 (5^th check if necc)	NA	NA

Sextupole Gap Measurement Checks

Gap Measurements:
Upstream (in)	Downstream (in)
Loc 1: 1.069	Loc 1: 1.071
Loc 2: 1.072	Loc 2: 1.073
Loc 3: 1.071	Loc 3: 1.071

Approval ________________________

Sextupole Magnet Fiducialization Traveller

Approval must be obtained before removing the magnet from the test stand.

Magnetic Measurements Approval by – Jack Tanabe or Tony King.

Magnet Serial Number 21S-41

IHEP Magnetic Measurements Operator: ____________ Date:_____________

Measured Magnetic Center Offset Dx =__________ mm Dy =___________ mm

Measured at: Integrated Field: ____________ T-m @ Current_____________ Amps

SLAC Magnetic Measurements Operator: ____________ Date:_____________

Measured Magnetic Center Offset Dx =__________ mm Dy =___________ mm

Measured at: Integrated Field: ____________ T-m @ Current_____________ Amps

Fiducialization:

Date: 1/22/2002 Ambient Temperature ______________ deg. C.

Operator(s) Michael Rogers

Comment

Fiducial – Measured Coordinates	z	x	y
	(in)	(in)	(in)
TB1	-3.7786	4.2321	15.5053
TB2	3.7468	4.2475	15.5047
TB3	-3.6439	-10.5193	12.5293
TB4	2.2673	-10.5150	12.5310
TB5	-3.7524	-15.0626	0.0282
TB6	3.7478	-15.0624	0.0333

(For x, y corrected coordinates, use SLAC data if available. If not, use IHEP data.)

Fiducial – Corrected Coordinates	z	x	y
	(in)	(in)	(in)
TB1
TB2
TB3
TB4
TB5
TB6

Check Measurements:

Flat Center	xmeasured	xnominal	ymeasured	ynominal
Upstream		0.0 in		12.8 in
Downstream		0.0 in		12.8 in

Position 1 (x,y)=(0,0)	x (in)	y (in)
Position 2	-0.0009	-0.0020
Position 3	0.0041	-0.0027
Position 4	0.0039	-0.0021
Position 5	0.0036	-0.0029
Position 6	0.0017	-0.0030

Approval ________________________