Evaluation of HOPG mounting possibilities for multiplexing spectrometers

Felix Groitl; Marek Bartkowiak; Ryan M. Bergmann; Jonas Okkels Birk; Marton Marko; Alex Bollhalder; Dieter Graf; Christof Niedermayer; Christian Rueegg; Henrik Moodysson Rønnow

doi:10.1016/j.nima.2017.03.031

Evaluation of HOPG mounting possibilities for multiplexing spectrometers

Felix Groitl
, Marek Bartkowiak
, Ryan M. Bergmann
, Jonas Okkels Birk
, Marton Marko
, Alex Bollhalder
, Dieter Graf
, Christof Niedermayer
, Christian Rueegg
, Henrik Moodysson Rønnow

Department of Physics

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

Four different methods for mounting HOPG analyzer crystals on Si holders have been evaluated in the design process of the new multiplexing spectrometer CAMEA. Contrary to neutron optics used in standard spectrometers, the new instrument concept employs a series of analyzer segments behind each other where the neutrons have to pass through the bonding compound of the different analyzer crystals. The different methods, namely screws, shellac, indium soldering and clips, have been evaluated with regards to background, transmission, cooling, activation and handling. The results presented here will give valuable input for future CAMEA-type spectrometers currently planned and designed at various neutron sources.

Original language	English
Journal	Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	858
Pages (from-to)	30-35
Number of pages	6
ISSN	0168-9002
DOIs	https://doi.org/10.1016/j.nima.2017.03.031
Publication status	Published - 2017

Keywords

Neutrons
Neutron optics
Neutron scattering
Multiplexing
HOPG
Neutron spectrometer

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10.1016/j.nima.2017.03.031

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Groitl, F., Bartkowiak, M., Bergmann, R. M., Birk, J. O., Marko, M., Bollhalder, A., Graf, D., Niedermayer, C., Rueegg, C., & Rønnow, H. M. (2017). Evaluation of HOPG mounting possibilities for multiplexing spectrometers. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 858, 30-35. https://doi.org/10.1016/j.nima.2017.03.031

@article{51b1fde630504496ba480b51e9638585,

title = "Evaluation of HOPG mounting possibilities for multiplexing spectrometers",

abstract = "Four different methods for mounting HOPG analyzer crystals on Si holders have been evaluated in the design process of the new multiplexing spectrometer CAMEA. Contrary to neutron optics used in standard spectrometers, the new instrument concept employs a series of analyzer segments behind each other where the neutrons have to pass through the bonding compound of the different analyzer crystals. The different methods, namely screws, shellac, indium soldering and clips, have been evaluated with regards to background, transmission, cooling, activation and handling. The results presented here will give valuable input for future CAMEA-type spectrometers currently planned and designed at various neutron sources.",

keywords = "Neutrons, Neutron optics, Neutron scattering, Multiplexing, HOPG, Neutron spectrometer",

author = "Felix Groitl and Marek Bartkowiak and Bergmann, \{Ryan M.\} and Birk, \{Jonas Okkels\} and Marton Marko and Alex Bollhalder and Dieter Graf and Christof Niedermayer and Christian Rueegg and R{\o}nnow, \{Henrik Moodysson\}",

year = "2017",

doi = "10.1016/j.nima.2017.03.031",

language = "English",

volume = "858",

pages = "30--35",

journal = "Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",

issn = "0168-9002",

publisher = "Elsevier",

}

Groitl, F, Bartkowiak, M, Bergmann, RM, Birk, JO, Marko, M, Bollhalder, A, Graf, D, Niedermayer, C, Rueegg, C & Rønnow, HM 2017, 'Evaluation of HOPG mounting possibilities for multiplexing spectrometers', Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 858, pp. 30-35. https://doi.org/10.1016/j.nima.2017.03.031

Evaluation of HOPG mounting possibilities for multiplexing spectrometers. / Groitl, Felix; Bartkowiak, Marek; Bergmann, Ryan M. et al.
In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 858, 2017, p. 30-35.

Research output: Contribution to journal › Journal article › Research › peer-review

TY - JOUR

T1 - Evaluation of HOPG mounting possibilities for multiplexing spectrometers

AU - Groitl, Felix

AU - Bartkowiak, Marek

AU - Bergmann, Ryan M.

AU - Birk, Jonas Okkels

AU - Marko, Marton

AU - Bollhalder, Alex

AU - Graf, Dieter

AU - Niedermayer, Christof

AU - Rueegg, Christian

AU - Rønnow, Henrik Moodysson

PY - 2017

Y1 - 2017

N2 - Four different methods for mounting HOPG analyzer crystals on Si holders have been evaluated in the design process of the new multiplexing spectrometer CAMEA. Contrary to neutron optics used in standard spectrometers, the new instrument concept employs a series of analyzer segments behind each other where the neutrons have to pass through the bonding compound of the different analyzer crystals. The different methods, namely screws, shellac, indium soldering and clips, have been evaluated with regards to background, transmission, cooling, activation and handling. The results presented here will give valuable input for future CAMEA-type spectrometers currently planned and designed at various neutron sources.

AB - Four different methods for mounting HOPG analyzer crystals on Si holders have been evaluated in the design process of the new multiplexing spectrometer CAMEA. Contrary to neutron optics used in standard spectrometers, the new instrument concept employs a series of analyzer segments behind each other where the neutrons have to pass through the bonding compound of the different analyzer crystals. The different methods, namely screws, shellac, indium soldering and clips, have been evaluated with regards to background, transmission, cooling, activation and handling. The results presented here will give valuable input for future CAMEA-type spectrometers currently planned and designed at various neutron sources.

KW - Neutrons

KW - Neutron optics

KW - Neutron scattering

KW - Multiplexing

KW - HOPG

KW - Neutron spectrometer

U2 - 10.1016/j.nima.2017.03.031

DO - 10.1016/j.nima.2017.03.031

M3 - Journal article

SN - 0168-9002

VL - 858

SP - 30

EP - 35

JO - Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

ER -

Evaluation of HOPG mounting possibilities for multiplexing spectrometers

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Keywords

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