Sextupole Magnet Checks			21S-16
	Date:	Magnet:	Operator(s):
	1/18/2002	21S-16	Michael Rogers
	Notes:

Magnetic Fiducial Coordinates: (inches)
	Fiducial	Z	X	Y
	TB1	-3.7201	4.2063	15.5078
	TB2	3.7281	4.2325	15.5062
	TB3	-3.6023	-10.4978	12.5399	Offset:
	TB4	2.3069	-10.5200	12.5281	0.0000	inches
	TB5	-3.7196	-15.0618	0.0314
	TB6	3.7563	-15.0629	0.0331
	Description:
	Fiducial values based on the measured mechanical center line.

Sextupole Mechanical Centerline Checks:

Mandrel Check (4 Positions):	X (in)	Y (in)
Position 1	-0.0004	0.0003
Position 2	-0.0008	-0.0009
Position 3	0.0016	-0.0005
Position 4	0.0029	-0.0030
Position 5	0.0037	-0.0007
Position 6	0.0011	-0.0006

Mandrel Check (Position 1):	X (in)	Y (in)
Position 1 (1^st check)	0.0020	0.0007
Position 1 (2^nd check)	0.0021	0.0004
Position 1 (3^rd check)	0.0022	0.0005
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: 1.072	Loc 1: 1.067
Loc 2: 1.072	Loc 2: 1.071
Loc 3: 1.068	Loc 3: 1.069

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-16

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: 1/18/2002 Ambient Temperature ______________ deg. C.

Operator(s) Michael Rogers

Comment

Fiducial – Measured Coordinates	z	x	y
	(in)	(in)	(in)
TB1	-3.7201	4.2063	15.5078
TB2	3.7281	4.2325	15.5062
TB3	-3.6023	-10.4978	12.5399
TB4	2.3069	-10.5200	12.5281
TB5	-3.7196	-15.0618	0.0314
TB6	3.7563	-15.0629	0.0331

(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	-0.0004	-0.0012
Position 3	0.0020	-0.0008
Position 4	0.0033	-0.0032
Position 5	0.0041	-0.0009
Position 6	0.0015	-0.0009

Approval ________________________