Sextupole Magnet Checks			21S-14
	Date:	Magnet:	Operator(s):
	1/2/2002	21S-14	Michael Rogers
	Notes:
	Remeasured U/S position 5 one piece mandrel.

Magnetic Fiducial Coordinates: (inches)
	Fiducial	Z	X	Y
	TB1	-3.6586	4.2138	15.5123
	TB2	3.6399	4.2028	15.5113
	TB3	-3.6291	-10.4960	12.5398	Offset:
	TB4	2.2671	-10.5312	12.5197	0.0000	inches
	TB5	-3.7331	-15.0624	0.0162
	TB6	3.7622	-15.0611	-0.0013
	Description:
	Fiducial values based on the measured mechanical center line.

Sextupole Mechanical Centerline Checks:

Mandrel Check (4 Positions):	X (in)	Y (in)
Position 1	0.0002	-0.0003
Position 2	0.0022	0.0039
Position 3	0.0024	0.0036
Position 4	0.0012	0.0062
Position 5	-0.0004	0.0021
Position 6	-0.0014	0.0025

Mandrel Check (Position 1):	X (in)	Y (in)
Position 1 (1^st check)	0.0021	-0.0007
Position 1 (2^nd check)	0.0022	0.0001
Position 1 (3^rd check)	0.0027	-0.0016
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: 1.070
Loc 2: 1.067	Loc 2: 1.068
Loc 3: 1.072	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-14

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: 1/2/2002 Ambient Temperature ______________ deg. C.

Operator(s) Michael Rogers

Comment
Remeasured U/S position 5 one piece mandrel.

Fiducial – Measured Coordinates	z	x	y
	(in)	(in)	(in)
TB1	-3.6586	4.2138	15.5123
TB2	3.6399	4.2028	15.5113
TB3	-3.6291	-10.4960	12.5398
TB4	2.2671	-10.5312	12.5197
TB5	-3.7331	-15.0624	0.0162
TB6	3.7622	-15.0611	-0.0013

(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	0.0020	0.0042
Position 3	0.0023	0.0039
Position 4	0.0010	0.0065
Position 5	-0.0005	0.0024
Position 6	-0.0016	0.0027

Approval ________________________