Sextupole Magnet Checks			21S-22
	Date:	Magnet:	Operator(s):
	2/6/2002	21S-22	Michael Rogers
	Notes:

Magnetic Fiducial Coordinates: (inches)
	Fiducial	Z	X	Y
	TB1	-3.5403	4.2207	15.5018
	TB2	3.4844	4.2089	15.5083
	TB3	-3.6610	-10.5093	12.5329	Offset:
	TB4	2.2928	-10.5074	12.5349	0.0000	inches
	TB5	-3.7280	-15.0634	-0.0039
	TB6	3.7731	-15.0601	-0.0161
	Description:
	Fiducial values based on the measured mechanical center line.

Sextupole Mechanical Centerline Checks:

Mandrel Check (4 Positions):	X (in)	Y (in)
Position 1	0.0000	0.0003
Position 2	-0.0004	-0.0014
Position 3	0.0039	-0.0013
Position 4	0.0026	0.0005
Position 5	0.0012	-0.0014
Position 6	0.0014	-0.0011

Mandrel Check (Position 1):	X (in)	Y (in)
Position 1 (1^st check)	0.0024	0.0003
Position 1 (2^nd check)	0.0027	0.0007
Position 1 (3^rd check)	0.0029	-0.0006
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: 1.070	Loc 1: 1.070
Loc 2: 1.069	Loc 2: 1.072
Loc 3: 1.072	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-22

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: 2/6/2002 Ambient Temperature ______________ deg. C.

Operator(s) Michael Rogers

Comment

Fiducial – Measured Coordinates	z	x	y
	(in)	(in)	(in)
TB1	-3.5403	4.2207	15.5018
TB2	3.4844	4.2089	15.5083
TB3	-3.6610	-10.5093	12.5329
TB4	2.2928	-10.5074	12.5349
TB5	-3.7280	-15.0634	-0.0039
TB6	3.7731	-15.0601	-0.0161

(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	-0.0017
Position 3	0.0040	-0.0016
Position 4	0.0026	0.0001
Position 5	0.0012	-0.0018
Position 6	0.0014	-0.0015

Approval ________________________