Share Email Print
cover

Proceedings Paper

Developing a long duration 3He fridge for the LSPE-SWIPE instrument
Author(s): Gabriele Coppi; Paolo de Bernardis; Andrew J. May; Silvia Masi; Mark McCulloch; Simon J. Melhuish; Lucio Piccirillo
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

A 3He sorption cooler design for the Short-Wavelength Instrument for the Polarization Explorer (SWIPE) of the Large-Scale Polarization Explorer (LSPE) balloon-borne experiment is described. The aim of this experiment is the detection of the primordial B-mode polarisation component of the Cosmic Microwave Background. The SWIPE instrument will use Transition-Edge Sensors that are designed to work at temperature of almost 300 mK. Therefore, a 3He sorption cooler has been specifically designed that can reach this temperature with a heat load of up to 25 μW. The fridge is compact in order to be housed inside the SWIPE cryostat and operate vertically. It has been designed to have a cycle duration of at least 7 days. In order to meet these specifications, the fridge will be charged with 0.75 moles of 3He.

Paper Details

Date Published: 22 July 2016
PDF: 8 pages
Proc. SPIE 9912, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II, 991265 (22 July 2016); doi: 10.1117/12.2232448
Show Author Affiliations
Gabriele Coppi, The Univ. of Manchester (United Kingdom)
Paolo de Bernardis, Sapienza Univ. di Roma (Italy)
Andrew J. May, The Univ. of Manchester (United Kingdom)
Silvia Masi, Sapienza Univ. di Roma (Italy)
Mark McCulloch, The Univ. of Manchester (United Kingdom)
Simon J. Melhuish, The Univ. of Manchester (United Kingdom)
Lucio Piccirillo, The Univ. of Manchester (United Kingdom)


Published in SPIE Proceedings Vol. 9912:
Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II
Ramón Navarro; James H. Burge, Editor(s)

© SPIE. Terms of Use
Back to Top