A novel photomultiplier tube neutron time-of-flight detector

Glebov, V. Yu.; Stoeckl, C.; Forrest, C. J.; Knauer, J. P.; Mannion, O. M.; Romanofsky, M. H.; Sangster, T. C.; Regan, S. P.

doi:10.1063/5.0029005

A novel photomultiplier tube neutron time-of-flight detector

Journal Article · Fri Jan 22 00:00:00 EST 2021 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/5.0029005· OSTI ID:1763028

^[1]; ^[2]; Forrest, C. J. ^[2]; Knauer, J. P. ^[2]; ^[2]; Romanofsky, M. H. ^[2]; ^[2]; Regan, S. P. ^[2]

Univ. of Rochester, NY (United States). Lab. for Laser Energetics; Laboratory for Laser Energetics, University of Rochester
Univ. of Rochester, NY (United States). Lab. for Laser Energetics

A traditional neutron time-of-flight (nTOF) detector used in inertial confinement fusion consists of a scintillator coupled with a photomultiplier tube (PMT). The instrument response function (IRF) of such a detector is dominated by the scintillator-light decay. At DT neutron yields larger than 1013 a novel detector consisting of a microchannel-plate photomultiplier tube in a housing without a scintillator (PMT nTOF) can be used to measure DT yield, ion temperature, and neutron velocity. Most of the neutron signal in PMT nTOF is produced from neutron interaction with a PMT window. The direct interaction of neutrons with MCP has negligible contribution. The elimination of the scintillator removes the scintillator decay from the instrument response function and makes the IRF of the PMT nTOF faster, which makes the ion temperature and neutron velocity measurements more accurate. Three PMT nTOFs were deployed on the OMEGA Laser System for the first time to diagnose inertial confinement fusion plasma. Here, the design details, characteristics, and calibration results of these detectors in DT implosions on OMEGA are presented. Recommendations on the use of different PMTs for specific applications are provided.

Research Organization:: Univ. of Rochester, NY (United States). Lab. for Laser Energetics

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA), Office of Defense Programs (DP)

Grant/Contract Number:: NA0003856

OSTI ID:: 1763028

Journal Information:: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 1 Vol. 92; ISSN 0034-6748

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

References (10)

A suite of neutron time-of-flight detectors to measure hot-spot motion in direct-drive inertial confinement fusion experiments on OMEGA Mannion, O. M.; Knauer, J. P.; Glebov, V. Yu. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 964 https://doi.org/10.1016/j.nima.2020.163774	journal	June 2020
Interpretation of neutron time-of-flight signals from current-mode detectors Murphy, T. J.; Chrien, R. E.; Klare, K. A. Review of Scientific Instruments, Vol. 68, Issue 1 https://doi.org/10.1063/1.1147763	journal	January 1997
Wide-dynamic-range “neutron bang time” detector on OMEGA Stoeckl, C.; Glebov, V. Yu.; Zuegel, J. D. Review of Scientific Instruments, Vol. 73, Issue 11 https://doi.org/10.1063/1.1511804	journal	November 2002
Prototypes of National Ignition Facility neutron time-of-flight detectors tested on OMEGA Glebov, V. Yu.; Stoeckl, C.; Sangster, T. C. Review of Scientific Instruments, Vol. 75, Issue 10 https://doi.org/10.1063/1.1788875	journal	October 2004
The National Ignition Facility neutron time-of-flight system and its initial performance (invited) Glebov, V. Yu.; Sangster, T. C.; Stoeckl, C. Review of Scientific Instruments, Vol. 81, Issue 10 https://doi.org/10.1063/1.3492351	journal	October 2010
Analysis of the neutron time-of-flight spectra from inertial confinement fusion experiments Hatarik, R.; Sayre, D. B.; Caggiano, J. A. Journal of Applied Physics, Vol. 118, Issue 18 https://doi.org/10.1063/1.4935455	journal	November 2015
Testing a Cherenkov neutron time-of-flight detector on OMEGA Glebov, V. Yu.; Eckart, M. J.; Forrest, C. J. Review of Scientific Instruments, Vol. 89, Issue 10 https://doi.org/10.1063/1.5035289	journal	October 2018
Area and extraction field analysis of the analogue saturation of 40 mm microchannel plate photomultiplier tubes Milnes, J. S.; Conneely, T. M.; Horsfield, C. J. Review of Scientific Instruments, Vol. 89, Issue 10 https://doi.org/10.1063/1.5036635	journal	October 2018
Calibration of a neutron time-of-flight detector with a rapid instrument response function for measurements of bulk fluid motion on OMEGA Mannion, O. M.; Glebov, V. Yu.; Forrest, C. J. Review of Scientific Instruments, Vol. 89, Issue 10 https://doi.org/10.1063/1.5037324	journal	October 2018
A fused silica Cherenkov radiator for high precision time-of-flight measurement of DT γ and neutron spectra (invited) Moore, A. S.; Schlossberg, D. J.; Hartouni, E. P. Review of Scientific Instruments, Vol. 89, Issue 10 https://doi.org/10.1063/1.5039322	journal	October 2018

Similar Records

Prototypes of National Ignition Facility neutron time-of-flight detectors tested on OMEGA

Journal Article · Fri Oct 01 00:00:00 EDT 2004 · Review of Scientific Instruments · OSTI ID:20636683

Optically multiplexed neutron time-of-flight technique for inertial confinement fusion

Journal Article · Thu Sep 05 20:00:00 EDT 2024 · Review of Scientific Instruments · OSTI ID:2447571

A new neutron time-of-flight detector for yield and ion-temperature measurements at the OMEGA Laser Facility

Journal Article · Tue Sep 27 20:00:00 EDT 2022 · Review of Scientific Instruments · OSTI ID:1897072

Related Subjects

47 OTHER INSTRUMENTATION
Cherenkov detectors
Lasers
Microchannel plate detectors
Neutron detectors
Photocathodes
Photomultipliers
Plasma confinement
Scintillation counter
Time-of-flight neutron spectroscopy

A novel photomultiplier tube neutron time-of-flight detector

Citation Formats

References (10)

Similar Records

Related Subjects