band 1 status - chalmers.se · team • alma band-1 is alma-ea project, with collaboraon with u....
TRANSCRIPT
ALMADevelopers'Workshop
Band1StatusTedHuang
Outline
• Introduc9on
• Schedule
• Performance
Team
• ALMABand-1isALMA-EAproject,withcollabora9onwithU.Chile,NRAOandHIA.
• ApprovedbyALMABoardforproto-typingin2014.• Band1Produc9onapprovedinALMA:May2016• ALMA-EAtake all responsibilities for the Band 1 work
package: – CCA+WCA,CPDS,Biasmodulesandphotomxiers.– Band 1 Prototype Development – Band 1 Cartridge Production– Maintenance; – Integra9onandtes9ngatOSF – Test Line and its Maintenance
Organizational
Band1Project• Keycomponentdown-selec9on:Jan2013• ApprovaltobuildprototypefromALMAboardandADSCin2014March
• PDR:July2013• PostPDR:January2014• Band1Op9calReview(internalreview):mee9ngbyJ.Lamb,J.Kooi,N.Whyborn,R.Hill,M.SugimotoinSan9ago,ChileinNov.2014.
• Cri9calDesignReviewonJanuary19thto21st2016
Timeline
• Begin#1to#3produc9oncartridgestar9ngfromMarch2016
• LOCDMR:October2016• Band1MRR:October2016• Firstcartridgetestwithactualcryostat:Fall2016@NRAO
• Fristcartridgetes9ngatOSF:Spring-Summer2017
• Integra9onandtes9ng#4-#9produc9oncartridge:BeforeMay2017
• Complete#73cartridgedeliveryby:December2019
Produc9onprocess
Cartridgeandkeycomponentsproduc9onrate
0
20
40
60
80
100
120
140
160
180
Jan-16 Aug-16 Mar-17 Sep-17 Apr-18 Oct-18 May-19 Dec-19
Cartridge
CLNA
LO
OMT
CurrentStatus
• Integra9ngandtes9ngthePre-produc9oncartridgeSN#01
• Workingonthesolarobserva9onopera9onmode.
(Poster,C-C,Chiong)• Sealethebaselinedesign.
Overview
NRAO
HIA NAOJandUChile
RF:35-50GHz,35-52GHz(Besteffort)LO:31-40GHz,IF:4-12GHz,SSBTrx:25-32K
Overview
SystemNoiseTemperature:Pol.0
ReceiverNoiseTemperature:TRECUnCorrectedBand1CartridgeSN03Pol.0
10
15
20
25
30
35
40
34 36 38 40 42 44 46 48 50
Freq.RF(GHz)
Tr(K
) 3132333435363738
SystemNoiseTemperature:Pol.1
ReceiverNoiseTemperature:TRECUnCorrectedBand1CartridgeSN03Pol.1
10
15
20
25
30
35
40
34 36 38 40 42 44 46 48 50
Freq.RF(GHz)
Tr(K
) 3132333435363738
Contribu9onoftheop9cstothenoise
CLNAperformanceQA006
CLNAQA008
IFRipple:Pol0
IFRipple:Pol1
Op9calperformance
Pol0Farfieldandnearfieldpaaern
Pol1Farfieldandnearfieldpaaern