Sextupole Magnet Checks			21S-26
	Date:	Magnet:	Operator(s):
	10/25/2001	21S-26	Michael Rogers
	Notes:

Magnetic Fiducial Coordinates: (inches)
	Fiducial	Z	X	Y
	TB1	-3.5495	4.2252	15.5140
	TB2	3.5695	4.2001	15.5119
	TB3	-3.6423	-10.4972	12.5412	Offset:
	TB4	2.3817	-10.5298	12.5205	0.0000	inches
	TB5	-3.7604	-15.0635	0.0668
	TB6	3.7487	-15.0595	0.0628
	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	0.0002	0.0021
Position 3	0.0008	0.0023
Position 4	0.0030	-0.0018
Position 5	0.0050	0.0015
Position 6	-0.0005	0.0015

Mandrel Check (Position 1):	X (in)	Y (in)
Position 1 (1^st check)	0.0028	-0.0004
Position 1 (2^nd check)	0.0026	0.0003
Position 1 (3^rd check)	0.0023	0.0000
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: 1.071	Loc 1: 1.070
Loc 2: 1.074	Loc 2: 1.072
Loc 3: 1.070	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-26

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

Fiducial – Measured Coordinates	z	x	y
	(in)	(in)	(in)
TB1	-3.5495	4.2252	15.5140
TB2	3.5695	4.2001	15.5119
TB3	-3.6423	-10.4972	12.5412
TB4	2.3817	-10.5298	12.5205
TB5	-3.7604	-15.0635	0.0668
TB6	3.7487	-15.0595	0.0628

(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	0.0019
Position 3	0.0009	0.0022
Position 4	0.0031	-0.0019
Position 5	0.0051	0.0014
Position 6	-0.0004	0.0013

Approval ________________________