Abstract

We describe progress to date with the first major upgrade of the TOSCA spectrometer since it first became operational over fifteen years ago. This major project to boost the incident flux on the instrument by over an order of magnitude has been implemented in the past couple of years and has involved the complete redesign of the primary spectrometer to house a state-of-the-art, high-m neutron guide and associated chopper system. Engineering design and subsequent installation and commissioning efforts have been supported by extensive neutron-transport simulations and baseline studies of neutronic response in the context of the ISIS TS1 Project. Looking further ahead, we also outline ongoing feasibility studies to upgrade the secondary spectrometer, with a view to additional order-of-magnitude gains in neutronic and scientific performance.

Details

Title
The TOSCA Spectrometer at ISIS: the Guide Upgrade and Beyond
Author
Pinna, R S 1 ; Zanetti, M 1 ; Rudić, S 2 ; Parker, S F 2 ; Armstrong, J 2 ; Waller, S P 2 ; Zacek, D 2 ; Smith, C 2 ; Harrison, S M 2 ; Gorini, G 3 ; Fernandez-Alonso, F 4 

 ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire OX11 0QX, United Kingdom; CNISM, Università degli Studi di Milano-Bicocca, Piazza della Scienza 3, 20126 Milano, Italy 
 ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire OX11 0QX, United Kingdom 
 CNISM, Università degli Studi di Milano-Bicocca, Piazza della Scienza 3, 20126 Milano, Italy 
 ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire OX11 0QX, United Kingdom; Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom 
Publication year
2018
Publication date
May 2018
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2572261579
Copyright
© 2018. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.