SwePub
Tyck till om SwePub Sök här!
Sök i SwePub databas

  Extended search

Träfflista för sökning "WFRF:(Rodenhuis S) ;mspu:(conferencepaper)"

Search: WFRF:(Rodenhuis S) > Conference paper

  • Result 1-4 of 4
Sort/group result
   
EnumerationReferenceCoverFind
1.
  • Barkhof, J., et al. (author)
  • ALMA Band 2 Receiver Automated Test System
  • 2022
  • In: 32nd International Symposium of Space Terahertz Technology, ISSTT 2022.
  • Conference paper (peer-reviewed)abstract
    • As part of the ALMA Band 2 project, an automated test system was developed to fully qualify state-of-the-art Band 2 receivers, based on heritage of the Band 9 and Band 5 productions. The RF range of this receiver is 67 - 116 GHz, with a goal IF band of 4-18 GHz. Each receiver will undergo a thorough acceptance testing to verify its operation and performance prior to delivery. The core of the test system are a single-cartridge test cryostat, a dual-channel intermediate frequency signal processor, a vector near-field test system, and script-based measurement and control software that enables automated testing. We present details of the test system and measurement results of the first Band 2 receivers.
  •  
2.
  • Belitsky, Victor, 1955, et al. (author)
  • ALMA Band 2 Cold Cartridge Assembly Design
  • 2022
  • In: 32nd International Symposium of Space Terahertz Technology, ISSTT 2022.
  • Conference paper (peer-reviewed)abstract
    • As part of the ALMA development, we present the design of the ALMA Band 2 Cold Cartridge Assembly (CCA). The Band 2 is the last band that completes the suit of the 10 receiver channels of ALMA. The originally planned ALMA Band 2 receiver cartridge should cover the RF band of 67 - -90 GHz. The recent progress in technology, optics, OMT design and mm-wave amplifiers, however allowed to implement receiver that has an extended RF band up to 116 GHz. Furthermore, the Band 2 receiver pursues 2SB layout and provides 4-18 GHz IF band for two sidebands in a dual-polarization configuration. Here, we describe the design of the Band 2 CCA that includes optics, amplifier assembly, internal RF transport, mechanics and cryogenics. The downconverter part and performances are described elsewhere.
  •  
3.
  •  
4.
  • Snik, F., et al. (author)
  • The HARPS Polarimeter
  • 2011
  • In: Solar Polarization 6.
  • Conference paper (peer-reviewed)abstract
    • We recently commissioned the polarimetric upgrade of the HARPS spectrograph at ESO’s 3.6-m telescope at La Silla, Chile. The HARPS polarimeter is capable of full Stokes spectropolarimetry with large sensitivity and accuracy, taking advantage of the large spectral resolution and stability of HARPS. In this paper we present the instrument design and its polarimetric performance. The first HARPSpol observations show that it can attain a polarimetric sensitivity of \tilde10$^-5$ (after addition of many lines) and that no significant instrumental polarization effects are present.
  •  
Skapa referenser, mejla, bekava och länka
  • Result 1-4 of 4

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Close

Copy and save the link in order to return to this view