aymeric robert – xcs instrument scientist eric bong – xcs lead engineer april, 2009

XCSAymeric [email protected]

1

LUSIX-ray Correlation Spectroscopy

Instrument

Advanced Procurement Review :

Large Angle Detector Mover

Aymeric ROBERT – XCS Instrument ScientistEric Bong – XCS Lead Engineer

April, 2009


2

XCS Instrument Overview

Request your help :

We should name this device in another way

Suggestions ?


3

XCS Instrument Overview

600 mm

30 mm

3 mm

( Floor )

1400 mm

2x 2 mm


4

XCS LA-mover

Tran

sp

ort T

un

ne

lF

EH

Hu

tch

4

The Large Angle Detector Stage (LADS) is a component of the XCS Instrument. It positions the XCS pixelated detector (or any future detector available) in reciprocal space to perform X-ray Photon Correlation Spectroscopy experiments. The LADS vacuum flight path provides the capability to reduce air-scattering and air-absorption between the sample location (i.e located at the Center Of Rotation of the XCS diffractometer system) and the detector.

The positioning of the detector must be obtained in a precise and reproducible fashion. The Large Angle Detector Stage motion should be totally decoupled from the XCS diffractometer system. As for the XCS diffractometer system, the joint use of the XCS diffractometer system and the LADS will perform as a 4-circle horizontal scattering geometry Diffractometer.


5

XCS LA-mover

Tran

sp

ort T

un

ne

lF

EH

Hu

tch

4

The Large Angle Detector Stage serves the following purposes:•Positioning the XCS pixelated detector (or future detectors available) at the location of

interest in the reciprocal space in the vicinity of the horizontal scattering plane.•Allowing a large sample-detector distance enabling to resolve speckle patterns (i.e

coherent diffraction patterns)•Allowing to reach scattering angles 2θ up to 55 degrees for diffraction experiments•Allowing some Small Angle X-ray Scattering capability when 2θ=0º.•Allowing Grazing Incidence scattering and diffraction experiments.


6

XCS Large Angle Detector Mover Methodology

Produce Physics Requirement Document

P3 SLAC plan to contract design/build

Split effort between mover and components mounted to

mover feasible?

Design upper components at SLAC

Perform design concept study

yes

noContinue with design/build

• Multiple vendors expressed interest in mover design/build

• Description : i.e 3 Major Elements– Carriage mover– End module– Vacuum chamber

Evaluation of existing devices


7

XCS LA-Detector Mover Safety

• Safety– Informal meeting with Ernie Gomes and David Shemwell (SLAC

ES&H)• Both ES&H Representatives were satisfied that a safe implementation of

the large angle mover can be accommodated with a combination of engineering and administrative controls

– Preliminary concept• Set motors to run at low velocities and acceleration (software)• Set low current trip threshold of motors (software)• Brakes on all axis

– Installation• Need to coordinate with vendor regarding the hazards associated with

large angle mover installation, initial turn on and rigging– Seismic

• The entire system will be reviewed and approved by SLAC for seismic safety

– Electrical• NRTL, SLAC Inspection and approval


8

XCS LAM

Tran

sp

ort T

un

ne

lF

EH

Hu

tch

4

Device Location in the XCS Experimental Hutch


9

XCS LAM : Carriage Mover

Tran

sp

ort T

un

ne

lF

EH

Hu

tch

4

Conceptual Design of the XCS LAM : Based on the comparison of existing designs for the mover

HERIX, sector 30


10


Tran

sp

ort T

un

ne

lF

EH

Hu

tch

4

Conceptual Design of the XCS LAM


11


Tran

sp

ort T

un

ne

lF

EH

Hu

tch

4

Horizontal Motion Description• Completely decouple from the Diffractometer System• The carriage is supported by two units, combining the following motions:

• The upstream unit consists of : – 1 X driven motion – 1 Z driven linear motion – 1 slaved rotation motion

• The downstream unit consists of :– 1 X driven motion – 1 Z slaved linear motion – 1 slaved rotation motion


12


Tran

sp

ort T

un

ne

lF

EH

Hu

tch

4

• Horizontal Motion [2θ]– Range -1° to 55°– Desired resolution 1mDeg– Additional lateral horizontal translation : 1m


13


Tran

sp

ort T

un

ne

lF

EH

Hu

tch

4

• Vertical Motion [γ,Y]– [γ] Range -0.1° to 1°– Desired resolution 1mDeg– [Y] range +3mm/-30mm– Preliminary range of translation : -45mm/+145mm


14


Tran

sp

ort T

un

ne

lF

EH

Hu

tch

4

• Additional Requirements– Top of the carriage mover below 892mm, when centered– Maximum Load : 4000lbs– Maximum width : 30 inch– Respect stay clears– Installation of rails on the side for mounting top elements– Controls provided by SLAC ( will be obtained from APS)

• Overview of the Top Elements mounted on the rail


15

XCS LAM : End Module

Tran

sp

ort T

un

ne

lF

EH

Hu

tch

4

• Adjustable End Module :– Adjustable longitudinal position : no motor required– Precision Detector positioning system– Local Detector for alignment– Beamstop system before an exit window


16


Tran

sp

ort T

un

ne

lF

EH

Hu

tch

4 • Detector Precision Positioning :– [X,Y] range +12”/-6” with 10μm repeatability– [Z] longitudinal adjustment over 25”. Not motorized– Maximum Detector weight 50lbs


17


Tran

sp

ort T

un

ne

lF

EH

Hu

tch

4

• Beamstop System– Possibility to have multiple beamstops– Motion on the vacuum side (upstream from the exit window)– Located as close as possible from the window– Radial range >6” with 10μm repeatability– Tangential range >±0.25” with 10μm repeatability


18


Tran

sp

ort T

un

ne

lF

EH

Hu

tch

4

• Exit window– Mounted on a 12” flange– As large as possible given the chosen material– Easily exchangeable– Kapton vs beryllium tbi


19

XCS LAM : Vacuum System

Tran

sp

ort T

un

ne

lF

EH

Hu

tch

4

• Vacuum system– 12” section if possible– Vacuum better than 5.10-4 Torr (No UHV!)– Vented to air– Resonable pumping time– Providing 2 possible distance in combination with End-module– Entrance window : large CVD C* (40mm Ø)– MODULARITY !


20

XCS LAM

Tran

sp

ort T

un

ne

lF

EH

Hu

tch

4


21

XCS LAM

Tran

sp

ort T

un

ne

lF

EH

Hu

tch

4


22

XCS Large Angle Detector Mover

Engineering Specifications


23

Acquisition Strategy

• The carriage mover will be procured as a Design/build contract.

• The end-module, vacuum system and rail will be designed by SLAC staff.

• Soon at the level of Preliminary Design Review

• Final Design Review before the PO for the carriage mover is out.

• To sole or not to sole source…

• Current plan is to go out for bid


24

Status of Discussions with Vendors• Cost based on ANL HERIX instrument spoke with Oxford who built

HERIX

• Potential Vendors• Oxford Instrument

– Interested in bidding on contract

– Built Herix

• Huber (via Blake Industries)– Interested in bidding on contract

• JJ X-Ray– Interested in bidding on contract

• Aerotech– Interested in bidding on contract

• KTC– Interested in bidding on contract


25

XCS LAM

XCS LAM

Procurement Specification


26

XCS Detector Mover Schedule

• Possible advanced schedule• Must re-baseline P3 schedule to validate advanced schedule

award K$

mnths daysDetector MoverConceptual Design Studies 1 20 80 80Mocver Carriage RFQ Document / Package Prep 2 40Pre-Bid BIS Prep 1.25 25RFQ to Vendors 0 0Vendor Quote Prep and Response 1.5 30Vendor Selection 0 0Post-Bid BIS Document Prep 1.25 25AWARD Detector Mover 0 0 474Detector Mover Vendor Design-Fab (Phase 1) 3.25 65Preliminary Status Review (30%) 0 0Detector Mover Vendor Fab (Phase 2) 4.5 90Final Status Review (70%) 0 0Detector Mover Vendor Fab-Test-Ship (Phase 3) 5.25 105SLAC Review Approved Vendor Site Tests 0.25 5 20Vendor Ship Detector Mover 0.75 15RFI Detector Mover 0 0Upper Component Preliminary Design 1 20 160Upper Component PDR 0 0Upper Component Final Design 3 60 240 120Upper Component FDR 0 0Upper Component Documentation 2 40 200Upper Component Fabrication 0 0 200Upper Component Assembly Testing 0 0RFI Upper Components 0 0safety system definition / design / document / approval 2.25 45 80control hardware / power supply / cable plant / wiring prelim and final 2 40 20array detector mounting hardware design / analysis 2 40 40 20array detector cable plant interface / routing / strain relieve design 1 20 20array detector mounting hardware document 0.5 10 40array detector mounting hardware fabricate 1.5 30 7.5alignment fixtures preliminary design 2 40 40 40alignment fixtures final design 1 20 20alignment fixtures documentation 0.5 10 20alignment fixtures fabrication 5 100 7.5

eng / designBIS / purchasing

vendor / fab

Jun-09 Jul-09 Dec-09Aug-09 Sep-09 Oct-09 Nov-09 Oct-10 Nov-10 Dec-10May-10 Jun-10 Jul-10 Aug-10duration design hours

engineer hours

Sep-10Jan-10 Feb-10 Mar-10 Apr-10Apr-09 May-09


27

XCS LAM• Vendor Selection Criteria : identical to XPP procurementsCriteria Max Excellent Good Fair Poor Unacceptable

Compliance with technical requirements & specifications

45 40-45 30-39 20-29 11-19 0-10

Personnel, experience, facilities 25 22-25 16-21 11-15 5-10 0-4

Delivery and milestone schedule 10 9-10 7-8 4-6 2-3 0-1

Quality Plan 10 9-10 7-8 4-6 2-3 0-1

Cost 10 9-10 7-8 4-6 2-3 0-1

Excellent - Comprehensive and completer; meets or exceeds all requirements; exemplifies complete understanding of the requirements; and demonstrates in detail how to accomplish task

Good - Generally meets or exceeds requirements; omissions are of minor consequence or small; would be likely to produce an acceptable end item

Fair - Omissions are of significance, but are correctable; substantiation of points is weak or lacking; probability of successful effort is marginal

Poor - Gross omissions; failure to understand problem areas; failure to respond to requirements; little or no chance of success in completing the end item

Unacceptable - Does not meet the specifications

aymeric robert – xcs instrument scientist eric bong – xcs lead engineer april, 2009

Documents