Sextupole Magnet Checks			21S-17
	Date:	Magnet:	Operator(s):
	2/5/2002	21S-17	Michael Rogers
	Notes:

Magnetic Fiducial Coordinates: (inches)
	Fiducial	Z	X	Y
	TB1	-3.5496	4.2297	15.5094
	TB2	3.5163	4.2169	15.5073
	TB3	-3.5991	-10.5653	12.5051	Offset:
	TB4	2.2972	-10.5722	12.5080	0.0000	inches
	TB5	-3.6784	-15.0616	-0.0076
	TB6	3.7362	-15.0626	0.0199
	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	0.0004	0.0012
Position 3	0.0031	0.0008
Position 4	0.0011	0.0038
Position 5	-0.0013	-0.0003
Position 6	0.0006	-0.0004

Mandrel Check (Position 1):	X (in)	Y (in)
Position 1 (1^st check)	0.0023	0.0000
Position 1 (2^nd check)	0.0018	0.0007
Position 1 (3^rd check)	0.0034	-0.0010
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: 1.069
Loc 2: 1.069	Loc 2: 1.069
Loc 3: 1.070	Loc 3: 1.072

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-17

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: 2/5/2002 Ambient Temperature ______________ deg. C.

Operator(s) Michael Rogers

Comment

Fiducial – Measured Coordinates	z	x	y
	(in)	(in)	(in)
TB1	-3.5496	4.2297	15.5094
TB2	3.5163	4.2169	15.5073
TB3	-3.5991	-10.5653	12.5051
TB4	2.2972	-10.5722	12.5080
TB5	-3.6784	-15.0616	-0.0076
TB6	3.7362	-15.0626	0.0199

(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	0.0003	0.0011
Position 3	0.0030	0.0006
Position 4	0.0010	0.0037
Position 5	-0.0014	-0.0005
Position 6	0.0005	-0.0005

Approval ________________________