Allectra Limited

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Allectra Limited
Bluebell Business Est
Meridian House
Sheffield Park East Sussex
United Kingdom
TN22 3HQ
Website: www.allectra.com

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Announcements

17 August 2021
Allectra in Light Science
We have recently manufactured an optical component for Diamond Light Source in the UK. The component features a Sub-D 50-way weldable feedthrough and two single mode 9µm core optical fibre feedthroughs with FC/PC connectors on air and vacuum sides. For an increasing number of High Vacuum and UHV applications, Optical Fibres are used either to get signals out or to bring “light” to the right point into the chamber. The three different types of Optical Fibres below: • The Step Index Fibres are the thickest Fibres used. They are used for illumination or heat transfer by light and applications such as Spectroscopy. These Fibres have an Outside Diameter of 400 or 600 microns. • The Graded Index Fibres are typically data fibres. They have the advantage that the signal is kept sharper. • The best signal fibres are the Single Mode types. By having a very small diameter (6-9µm), which is much smaller than the wavelength of the light, there is only one optical path available and the signal keeps its shape. Both Graded Index and Single Mode have an Outside Diameter of 125 microns. Allectra offers feedthroughs and components with all three types.
17 August 2021
Allectra supplies components for LSPE SWIPE and STRIP instruments
Allectra has supplied components and cables for the Large-Scale Polarization Explorer (LSPE) SWIPE and STRIP instruments. LSPE aims at measuring the polarization of the Cosmic Microwave Background at large angular scales. Measuring CMB polarization with high precision at large angular scales is very difficult, due to large signals from the interstellar medium (thermal emission from interstellar dust grains and synchrotron emission from electrons in the Galactic magnetic field). The only way to separate the cosmological signal from the local one is by exploiting the difference in their spectra, which must be sampled over a wide frequency range. Large sky coverage and wide frequency coverage call for a space mission. On a shorter time-scale, experimentation is required to qualify specific instrumentation (optical systems, polarization modulators, detectors) and methods (sky scan, mapping procedures, polarized foregrounds separation), and possibly to get detections ! The instruments : The Large-Scale Polarization Explorer is – a stratospheric balloon payload, SWIPE flying long-duration in the polar night – spinning to cover a large fraction of the sky (20-25% per flight) – aiming at CMB polarization at large angular scales – using polarization modulators to achieve high stability – using multi-mode bolometers for extreme sensitivity – Frequency coverage of SWIPE: 120 – 250 GHz (3 channels) – Angular resolution: 1.3o FWHM – a ground based instrument, STRIP operated in Tenerife, using coherent radiometers – Frequency coverage of STRIP: 40 – 90 GHz (2 channels) – Angular resolution: 0.5o FWHM – Combined sensitivity: 20 mK arcmin per survey (1y) – sky coverage overlapping the SWIPE one. Source: LSPE, INFN The supply consisted of 2 sets of 4 flanges with 4x Sub-D 37 way feedthroughs on each custom flange, and 1 set of 4 DN160CF flanges with 8x Sub-D 50 way feedthroughs. The cabling was made by Copper and Manganin wires alternatively in order to match the different temperature steps inside the instruments.
06 September 2021
Fiona Rousseau joins Allectra's UK sales team
As part of our ongoing investment in the Allectra Group, Allectra Limited is expanding its UK sales team. We are pleased to announce that Fiona Rousseau will be joining UK internal sales with responsibility for providing our customers with technical information and responding to customer enquiries. Fiona has previously worked at Pfizer in Kent for 8 years where she spent 3 years as an R&D Medicinal Chemistry lead before joining R&D Outsourcing Team. The role included the outsourcing of research projects to both external contract pharmaceutical companies based primarily in Europe, India and China and on site contractors. She has a PhD in Synthetic Organic Chemistry from the University of Glasgow (2002). Fiona lives near Glasgow with husband (and fellow Allectra employee) Gilles and their 2 children. In her spare time Fiona helps coach her local swim team whilst still training and competing herself. Come and meet Fiona at our stand 408.
16 September 2021
Allectra's components assist testing in space environments
Allectra has provided custom flanges and cables for AstroBio CubeSat (ABCS), a 3U Cubesat hosting a mini laboratory payload based on innovative lab-on chip technology suitable for research in the astrobiology science, biotechnology and pharmaceutical technologies sectors. The objective of the project is to test, in space environments, an automatic laboratory based on lab-on-chip technology, able to provide a highly integrated in-situ multiparameter platform that uses immunoassay tests exploiting chemiluminescence detection. The experiments will aim at evaluating: The functional tests of the device (delivery of reagents, mixing of chemicals, detection of emitted photons, electronics, data storage and transmission); The stability of chemicals and biomolecules employed in the experiment and necessary for performing bioassays (e.g., immunoassays exploiting chemiluminescence detection) in space conditions for astrobiological investigations. In-orbit validation of the proposed technology would represent a significant breakthrough for autonomous execution of bio-analytical experiments in space with potential application in planetary exploration for biomarkers detection, astronauts’ healthcare, space stations’ environmental monitoring and more. ‘The ABCS mission objective is achieved through the use of a sealed payload box. In fact, in the case of ABCS, space vacuum would constitute an issue because of the necessity to handle liquids to perform scientific operations, therefore they have to happen in a pressurized environment to avoid reagents to change state from liquid to gaseous phase because of vacuum. To achieve this objective, and properly seal ABCS hardware and payload while exchanging data to/from the sealed payload box, a flange from Allectra was used. On-ground tests with a pressure sensor verified proper sealing at environmental pressure within the ABCS payload box.’ ABCS. The Project is supported by Agenzia Spaziale Italiana (ASI) in cooperation with Istituto Nazionale di Astrofisica, Osservatorio Astrofisico di Arcetri (INAF-OAA), and School of Aerospace Engineering – Università Sapienza di Roma (UNIROMA1).