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ALMA Future Development

Daisuke Iono (NAOJ)

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Scope•  In  order  to  maintain  ALMA  as  the  state-‐‑‒of-‐‑‒the-‐‑‒art  facility  over  the  course  of  its  projected  life  of  30+  years,  continuing  technical  upgrades  and  development  of  new  capabilities  are  essential.    

•  We  need  to  think  about  >  10  years,  starting  now!

Qi et al. Maercker et al. Hatsukade et al. Herrera et al.

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Scope

•  ALMA  Future  Development  is  one  of  the  options  that  the  community  can  chose  from,  among  various  other  options  that  we  are  facing.

•  Contents;1.  Overview  of  ALMA  development,  2.  Ongoing  development  studies/projects3.  Future  direction  for  EA  ALMA  

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Scope  of  ALMA  development•  ALMA  development  can  be:

–  Complete  new  additions  to  the  Array

–  Extension  of  existing  capabilities;  (more  sensitivity,  wider  bandwidth,  improved  image  quality,  better  dynamic  range,  etc)

–  Improvements  to  existing  systems  (in  hard-‐‑‒  or  software)  

–  Improved  infrastructure  that  reduces  risks,  increases  availability,  makes  operation  easier/less  expensive.

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EA  studies/projectsProject PI

Band  1　(35-­‐50GHz,  up  to  52GHz)   C.  Kemper,  P.  Ho  (ASIAA)

Ar@ficial  Noise  Source  at  AOS   H.  Kiuchi  (NAOJ)

Band  11  studies Y.  Uzawa  (NAOJ),  M.  Saito  (JAO)

Front face2013 July 8 2013 EA ALMA Development Workshop 8

Physical optics analysis�•  GRASP analysis and Gaussian beam fitting

– Slight design modification to fix a small phase distortion could yield good optics for Band 11�

Freq (GHz)� 868� 1300� 1500�Gaussicity (%)� 99.964� 99.968� 99.967�

w0x (mm)� 2.033� 1.358� 1.177�w0y (mm)� 2.033� 1.358� 1.177�

z (Focus position, mm)� -0.466� -0.490� -0.495�Pointing angle X (deg)� 0� 0� 0�Pointing angle Y (deg)� 0.975� 0.967� 0.965�

Simulated by A. Gonzalez�

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Band  1  timeline•  July  2013  

–  Preliminary  Design  Review  (PDR)•  Late  2013/early  2014

–  Band  1  production  proposal  to  ADSC  and  ALMA  board•  April  and  December  2014:  

–  Test  readiness  review  (TRR)–  Specification  readiness  review  (SRR)

•  December  2014  -‐‑‒  July  2015:–  Production  cartridges  #1  -‐‑‒  #3  

•  July  2015:  –  Critical  Design  &  Manufacturing  Readiness  Review  (CDMR)  

•  July  2015-‐‑‒2018–  Production  cartridges  #4  -‐‑‒  #73

•  July  2018:  –  Delivery  cartridge  #73

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EU  studies/projectsStudy/project Deliverable Note

Band  5  (163-­‐211  GHz) Design  study  -­‐>  full  produc@on

Study  completed  in  Feb  2012,  comple@on  2017

2SB  for  Band  9 prototype Study  completed  Apr  2012

ALMA  phasing  project Science  case,  technical  defini@on  etc

Design  and  components  for  Band  2  (68-­‐90  GHz)    +  3  (84-­‐116  GHz)

Science  case,  study  of  key  technology,  design

Start  June  2012  (for  1.5  yr)

Supra-­‐THz   Science  case,  study  of  the  weather  /instrument

Start  Nov  2012  (for  1.5  yr)

Cost  and  feasibility  of  upgrading  the  bandwidth

16  GHz  or  more

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Band  5  (163  –  211  GHz)•  Science

–  [CII]  in  z=8-‐‑‒10  and  high-‐‑‒J  CO  at  high-‐‑‒z–  Water  in  the  local  universe

•  Full  production  proposal  prepared  as  part  of  the  study  –  Approved  Apr  2012

•  Full  production  started  on  Feb  2013•  67  cartridges  to  be  delivered  by  2017

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NA  studiesStudy PI

2nd  Genera@on  Receiver  for  Band  6   A.  Kerr  (NRAO)

Design  study  of  Band  2  Cartridges   E.  Bryerton  (NRAO)

Ultra-­‐wideband  Quantum  Limited  Amplifiers D.  Woody  (Caltech)

Unleashing  Large  Dataset  Science L.  Mundy  (Maryland)

A  Visualiza@on  Portal  for  ALMA  Data E.  Rosolowsky  (UBC)

ALMA  Band  1  Receiver  Development  (with  EA) P.  Ho  (ASIAA)

Mm/submm  VLBI  with  ALMA J.  Kern  (NRAO)

Increase  the  ALMA  data  rate B.  Glendenning  (NRAO)

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NA  projectsProject PI

Band  5  LO  produc@on   E.  Bryerton  (NRAO)

Fiber  Op@c  Connec@vity   J.  Ibsen  (JAO)

ALMA  Phasing  Project  (APP) S.  Doeleman  (MIT,  Haystack)

APP  Implementa@on S.  Doeleman  (MIT,  Haystack)

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Future  of  the  Future  Development•  EU  Call  for  studies  (June,  2013)  

– Deadline  Sept  2,  2013.    Review  in  Fall.– Studies  kick-‐‑‒off  2014,  lifecycle  2014-‐‑‒2016

•  NA  Call  for  studies/projects  (May  1)– Total  $1M,  projects  may  seek  up  to  $200K– Deadline:  July  12

•  East  Asia– Focus  on  longer  term  large  scale  improvements  of  ALMA,  rather  than  small  scale  upgrades

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Future  of  ALMA  Future  Development

•  EA  Development  Workshop;  July  8-‐‑‒9  in  Mitaka•  69  participants  (half  from  the  community)

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East  Asian  Community  Requests  for  ALMA

•  Wider  field  of  view  (Multi-‐‑‒beam  receiver)•  Higher  sensitivity  (more  antennas,  wider  IF,  more  quantization)

•  High  fidelity  imaging  •  Higher  angular  resolution  (~∼200-‐‑‒300  km  baselines)

•  High  dynamic  range•  etc

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Future  direction

•  Identify  EA-‐‑‒led  development  for  the  next  10  years,  based  on  the  science  demands,  technical  feasibility,  cost  impact.    

•  A  dedicated  working  group  will  be  formed  in  EA,  steered  by  the  coordination  and  the  leadership  of  the  Japan  ALMA  Science  Advisory  Committee  (JSAC).  

•  Coordination  with  other  regions  is  the  key,  and  the  regional  executives  will  serve  as  the  interface.

•  Science  demand  from  the  community  is  the  most  important  driver  for  future  development  of  ALMA!