Sextupole Magnet Checks			21S-31
	Date:	Magnet:	Operator(s):
	10/25/2001	21S-31	Michael Rogers
	Notes:
	Repeated U/S 3 piece mandrel check.

Magnetic Fiducial Coordinates: (inches)
	Fiducial	Z	X	Y
	TB1	-3.5254	4.2169	15.5103
	TB2	3.5754	4.1996	15.5084
	TB3	-3.6253	-10.5062	12.5354	Offset:
	TB4	2.3457	-10.5493	12.5083	0.0000	inches
	TB5	-3.6990	-15.0642	0.0200
	TB6	3.7572	-15.0615	0.0365
	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	0.0002
Position 2	-0.0001	0.0008
Position 3	0.0053	0.0006
Position 4	0.0051	0.0001
Position 5	0.0068	0.0029
Position 6	-0.0010	0.0028

Mandrel Check (Position 1):	X (in)	Y (in)
Position 1 (1^st check)	0.0023	-0.0001
Position 1 (2^nd check)	-0.0185	0.1092
Position 1 (3^rd check)	0.0080	-0.0080
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: 1.067	Loc 1: 1.067
Loc 2: 1.073	Loc 2: 1.071
Loc 3: 1.071	Loc 3: 1.070

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-31

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: 10/25/2001 Ambient Temperature ______________ deg. C.

Operator(s) Michael Rogers

Comment
Repeated U/S 3 piece mandrel check.

Fiducial – Measured Coordinates	z	x	y
	(in)	(in)	(in)
TB1	-3.5254	4.2169	15.5103
TB2	3.5754	4.1996	15.5084
TB3	-3.6253	-10.5062	12.5354
TB4	2.3457	-10.5493	12.5083
TB5	-3.6990	-15.0642	0.0200
TB6	3.7572	-15.0615	0.0365

(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	-0.0001	0.0006
Position 3	0.0052	0.0005
Position 4	0.0050	-0.0001
Position 5	0.0067	0.0027
Position 6	-0.0011	0.0026

Approval ________________________