Concepts of UCN sources for the FRM-II

U. Trinks; F. J. Hartmann; S. Paul; W. Schott

doi:10.1016/S0168-9002(99)01059-1

Concepts of UCN sources for the FRM-II

U. Trinks
, F. J. Hartmann
, S. Paul
, W. Schott

Chair of Physics I

Technical University of Munich

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

53 Scopus citations

Abstract

Three concepts for sources of ultra-cold neutrons (UCN) for the reactor FRM-II at Garching near Munich are studied: one, Mini-D₂, is a source with 170 cm³ of solid deuterium in the beam tube SR4 and the second one a large solid-deuterium source (volume about 30 dm³), mounted in the beam tube SR5 as an advanced cold source with a number of neutron guides. The third one, Mark 3000, uses superfluid ⁴He at a cold-neutron guide. A UCN density of up to 7×10⁴ cm^-3 may possibly be achieved in the storage volumes of Mini-D₂ yielding more than 10⁹ UCN for extraction to an attached experimental setup. The usable UCN flux at the periphery of the large deuterium source is predicted to be 2×10⁷ cm^-2 s^-1. Mark 3000, finally, is expected to yield a UCN density of about 10⁵ cm^-3.

Original language	English
Pages (from-to)	666-673
Number of pages	8
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	440
Issue number	3
DOIs	https://doi.org/10.1016/S0168-9002(99)01059-1
State	Published - Jun 2000
Event	The International Workshop on 'Particle Physics with Slow Neutrons' - Grenoble, France Duration: 22 Oct 1998 → 24 Oct 1998

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title = "Concepts of UCN sources for the FRM-II",

abstract = "Three concepts for sources of ultra-cold neutrons (UCN) for the reactor FRM-II at Garching near Munich are studied: one, Mini-D2, is a source with 170 cm3 of solid deuterium in the beam tube SR4 and the second one a large solid-deuterium source (volume about 30 dm3), mounted in the beam tube SR5 as an advanced cold source with a number of neutron guides. The third one, Mark 3000, uses superfluid 4He at a cold-neutron guide. A UCN density of up to 7×104 cm-3 may possibly be achieved in the storage volumes of Mini-D2 yielding more than 109 UCN for extraction to an attached experimental setup. The usable UCN flux at the periphery of the large deuterium source is predicted to be 2×107 cm-2 s-1. Mark 3000, finally, is expected to yield a UCN density of about 105 cm-3.",

author = "U. Trinks and Hartmann, \{F. J.\} and S. Paul and W. Schott",

year = "2000",

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doi = "10.1016/S0168-9002(99)01059-1",

language = "English",

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

issn = "0168-9002",

publisher = "Elsevier B.V.",

number = "3",

note = "The International Workshop on 'Particle Physics with Slow Neutrons' ; Conference date: 22-10-1998 Through 24-10-1998",

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TY - JOUR

T1 - Concepts of UCN sources for the FRM-II

AU - Trinks, U.

AU - Hartmann, F. J.

AU - Paul, S.

AU - Schott, W.

PY - 2000/6

Y1 - 2000/6

N2 - Three concepts for sources of ultra-cold neutrons (UCN) for the reactor FRM-II at Garching near Munich are studied: one, Mini-D2, is a source with 170 cm3 of solid deuterium in the beam tube SR4 and the second one a large solid-deuterium source (volume about 30 dm3), mounted in the beam tube SR5 as an advanced cold source with a number of neutron guides. The third one, Mark 3000, uses superfluid 4He at a cold-neutron guide. A UCN density of up to 7×104 cm-3 may possibly be achieved in the storage volumes of Mini-D2 yielding more than 109 UCN for extraction to an attached experimental setup. The usable UCN flux at the periphery of the large deuterium source is predicted to be 2×107 cm-2 s-1. Mark 3000, finally, is expected to yield a UCN density of about 105 cm-3.

AB - Three concepts for sources of ultra-cold neutrons (UCN) for the reactor FRM-II at Garching near Munich are studied: one, Mini-D2, is a source with 170 cm3 of solid deuterium in the beam tube SR4 and the second one a large solid-deuterium source (volume about 30 dm3), mounted in the beam tube SR5 as an advanced cold source with a number of neutron guides. The third one, Mark 3000, uses superfluid 4He at a cold-neutron guide. A UCN density of up to 7×104 cm-3 may possibly be achieved in the storage volumes of Mini-D2 yielding more than 109 UCN for extraction to an attached experimental setup. The usable UCN flux at the periphery of the large deuterium source is predicted to be 2×107 cm-2 s-1. Mark 3000, finally, is expected to yield a UCN density of about 105 cm-3.

UR - https://www.scopus.com/pages/publications/0033903594

U2 - 10.1016/S0168-9002(99)01059-1

DO - 10.1016/S0168-9002(99)01059-1

M3 - Conference article

AN - SCOPUS:0033903594

SN - 0168-9002

VL - 440

SP - 666

EP - 673

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

IS - 3

T2 - The International Workshop on 'Particle Physics with Slow Neutrons'

Y2 - 22 October 1998 through 24 October 1998

ER -

Concepts of UCN sources for the FRM-II

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