Progress On TRD Gas System

July 27 2005 Martina Green 1

Progress On TRD Gas Progress On TRD Gas SystemSystem

AMS TIM at CERNAMS TIM at CERNTRD Splinter MeetingTRD Splinter Meeting

July 27, 2005July 27, 2005

Martina GreenMartina Green

July 27 2005 Martina Green 2

TRD300 Liters

Manifolds

Mixing Vessel D200 psia

CO2

940 psia

Xe

1550 psia

Box S

Box C

17.6 -20.4 psia

Schematic of the AMS-TRD gas system.Schematic of the AMS-TRD gas system.All pressures are at 25 C.All pressures are at 25 C.

July 27 2005 Martina Green 3

Box S Sub-assembliesBox S Sub-assemblies

July 27 2005 Martina Green 4

Box S Pressure Relief Valve

July 27 2005 Martina Green 5

Status of Flight ModuleStatus of Flight Module

• COCO22 and Xe vessels and bosses (Ardé): and Xe vessels and bosses (Ardé): readyready

• Burst disks (BS Burst disks (BS && B Safety Systems): B Safety Systems): in hand @ MITin hand @ MIT

• Relief valves for Box S (Marotta):Relief valves for Box S (Marotta): in hand @ MITin hand @ MIT

• Flight qualified cables (Glenair):Flight qualified cables (Glenair): In hand @ MITIn hand @ MIT

• Brackets for Fill/Vent/Tower valves:Brackets for Fill/Vent/Tower valves: CERN CERN MIT MIT

• Three Sub-assyThree Sub-assy.. pre-assemb.pre-assemb. MIT MIT Ardé (05/2005) Ardé (05/2005)

July 27 2005 Martina Green 6

Preassembled Flight Sub-Preassembled Flight Sub-assembliesassemblies2-Valve GP50

2-Valve GP502-Valve GP50

2-Valve GP50

July 27 2005 Martina Green 7

Preassembled Flight Sub-Preassembled Flight Sub-assembliesassemblies

2-Valve Filter

22--Valve FilterValve Filter22--Valve FilterValve Filter

2-Valvev Filter

July 27 2005 Martina Green 8

Preassembled Flight Sub-Preassembled Flight Sub-assembliesassemblies

4-Valve4-Valve

4-Valve

4-Valve

July 27 2005 Martina Green 9

Box S Box S Sub-Box S Sub-assembliesassemblies

July 27 2005 Martina Green 10

Arde Production ScheduleAugustAugust DecembeDecembe

rr

July 27 2005 Martina Green 11

Box S Box S - - Mounting Mounting Platform Platform • Completed Completed Arde ( Arde (07/200507/2005))

Box S Box S Mounting Mounting PlatformPlatform

Shipping Shipping UnitUnit

July 27 2005 Martina Green 12

Open Issues with Flight Open Issues with Flight ModuleModule

• Vessels heatersVessels heaters• Foil or stickFoil or stick : : waiting for Arde’s feedback• InstallationInstallation: : Arde or MIT• ThermostatsThermostats: to be finalized & ordered

• TRD heaters: TRD heaters: Power? (UB’s details)Power? (UB’s details)

• Xe/COXe/CO22 vessesl: vessesl: Fill Location & Fill Location & ProcedureProcedure

• Arde Contract: Arde Contract: Subcontract? Subcontract?

July 27 2005 Martina Green 13

Box S EM - Previous StatusBox S EM - Previous Status

• Passed vibration test at ENSAPassed vibration test at ENSA (12/2003)

• Reduced 1st Buffer VolReduced 1st Buffer Vol. (10/2004)

COCO22:: 15 15 5 c.c 5 c.c.. XeXe: : 30 30 15 c.c 15 c.c..

• Box S + Box C Box S + Box C MIT:MIT: cabling/manual tests

(11/04)

• D-VesselD-Vessel: added a ss tube w/1-mm holes

(11/2004)

July 27 2005 Martina Green 14

Mixing VesselMixing Vessel

ModificationModificationS.S. Tube: with 1 mm

holes

July 27 2005 Martina Green 15

Progress of Box S – EM at MITProgress of Box S – EM at MIT

• Portable clean room: perform manual tests

• Ardé visited MIT: (02/2005)

• Visits of INFN-Rome & A. Lebedev @ MIT (03/2005)

• updated w/ flight module USCM (Lebedev)• new gas mixing software (Rome & Lebedev)• tested & evaluated software

• CO2 & Xe transfers tests: validate buffer

volume

July 27 2005 Martina Green 16

COCO22 Fill in Vessel D Fill in Vessel D

CO2 Fill Cycle

50

60

70

80

0 10 20 30 40 50Time (sec)

Pre

ssur

e in

Ves

el D

(p

sia)

Time Constant 7.2 ± .1 Sec

Time Constant 7.2 ± .1 Sec

July 27 2005 Martina Green 17

Xe Fill in Vessel DXe Fill in Vessel D

Xe Fill Cycle

650

700

750

800

850

900

950

1000

1050

1100

0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0 45.0 50.0

Time (sec)

P in V

esse

l D (psi

a)

τ = 6 ± 1 sec

July 27 2005 Martina Green 18

CO2 – Xe Transfer from Vessel D to CO2 – Xe Transfer from Vessel D to Box CBox C

CO2 - Xe Transfer from Vessel D

0

200

400

600

800

1000

1200

1400

1600

1800

0 1 2 3 4 5 6 7 8 9 10 11 12Time (min)

Pre

ssur

e in

Ves

sel D

(p

sia)

Time Constant2.8 ± .1 min

July 27 2005 Martina Green 19

EM 10-day Xe/COEM 10-day Xe/CO22 life cycle life cycle StudyStudy

• Xe/CO2 1% Flight mass – completed

Xe (13.4 mole/L): 27.5 L, 48.5 kg 300 mL, 500 g

CO2 (9.9 mole/L): 13.3 L, 5.8 kg 150 mL, 65 g

CO2

Xe

July 27 2005 Martina Green 20

High Pressure COHigh Pressure CO22 Fill Fill SetupSetup

Scale 2

IIIIIIII

Scale1

CO2

Store Bottle

To vacuum pump

Heat as needed

July 27 2005 Martina Green 21

High Pressure Xe Fill SetupHigh Pressure Xe Fill Setup

Xe

Cold Bath

IIIIIIII

Scale 1

Store Bottle

Scale 2

Cold Bath

To Vacuum Pump

July 27 2005 Martina Green 22

10-Day Life Cycle Study Result10-Day Life Cycle Study Result

Comparison of Xe % Measured by Partial Pressure & Spirometer

40.0

50.0

60.0

70.0

80.0

90.0

100.0

0 2 4 6 8 10 12

Number of Cycle

Xe

%

Partial Pr Meas.

Spirometer Meas.

July 27 2005 Martina Green 23

Current TRD ProgressCurrent TRD Progress

• EM of Box S + CEM of Box S + C Rome (electronic integ. 07/2005)

• Xe Xe && CO CO22 vessel fill procedure: vessel fill procedure: MIT/Linde

• Box C (Flight)Box C (Flight): : being fabricated (G. Rybka)

• Rest of Box S componentsRest of Box S components Arde ~08/05)

July 27 2005 Martina Green 24

Phase II Safety DataPhase II Safety Data• Pressure System Table:Pressure System Table: No open issues

• Other safety requests fulfilled:Other safety requests fulfilled:

• Fill/Drain of S, C & M - Fill/Drain of S, C & M - locations & procedures• Vessel fill port seal cap - Vessel fill port seal cap - design/drawing• COCO22 freezing issue – freezing issue – detailed writeup to

follow

• Radiation Hazard Report requestRadiation Hazard Report request• New monitor tube design & locationNew monitor tube design & location• FeFe5555 loading loading

July 27 2005 Martina Green 25

Monitor Tube Location

July 27 2005 Martina Green 26

Monitor Tube – New DesignMonitor Tube – New Design

July 27 2005 Martina Green 27

Quantity of Fe55 LoadingQuantity of Fe55 Loading

Fe55 Decay/MonitorTube

0

0.05

0.1

0.15

0.2

0.25

0.3

2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016

Time (year)

Fe55

Dec

ay R

ate

(micro

Ci)

@ Installation0.270 micro Ci

@ Launch0.162 micro Ci

End of Mission0.075 micro Ci

A

B

C