Conveners
Facilities: I
- Katelyn Cook (RPI)
Facilities: II
- Emilio Andrea Maugeri (PSI)
Facilities: III
- Yaron Danon (RPI)
Facilities: IV
- Richard Hughes (LLNL)
Facilities: V
- Josh Brown (UC Berkeley)
Facilities: VI
- Marcin Bielewicz
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J. Tang (CSNS/CADS/IHEP)26/07/2022, 06:00
The Back-n white neutron source at CSNS (China Spallation Neutron Source) has been in operation since 2018. As a multidisciplinary research platform, Back-n has its main focus on nuclear data measurements. With its unique beamline using the back-streaming neutrons from a proton beam of 100 kW in beam power impinging on a thick spallation target in tungsten, Back-n owns the highest neutron flux...
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Michael Bacak26/07/2022, 06:24
The European Laboratory for Particle Physics (CERN) is equipped with a top-class, high-brightness, neutron spallation source dedicated to high-resolution neutron time-of-flight experiments: the n_TOF Facility.
During CERN’s Long Shutdown 2 (LS2, 2019-2021), the n_TOF neutron spallation target has been exchanged and the facility is now operating with its third-generation target [1]. The...
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Alberto Mengoni26/07/2022, 06:36
The European Laboratory for Particle Physics (CERN) is equipped with a top-class, high-brightness, neutron spallation source dedicated to high-resolution neutron time of flight experiments: the n_TOF Facility.
The Facility has been constructed in 2000 [1] and has evolved significantly over the last 20 years, encompassing the creation of a new vertical experimental area on top of the...
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Michael Bacak26/07/2022, 06:48
The n_TOF facility at CERN is a pulsed neutron source for time-of-flight measurements, first conceptualised by Carlo Rubbia in 1998 [1]. It is designed to study neutron induced reactions bearing importance for fundamental research, nuclear astrophysics [2,3], nuclear technology applications [4] as well as nuclear medicine [5]. During its first two operation phases, n_TOF consisted of a single...
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Jose Antonio Pavon Rodriguez (University of Seville and CERN)26/07/2022, 07:00
The n_TOF Collaboration operates the neutron time-of-flight facility at CERN [1], based on a 20 GeV/c pulsed proton beam impinging on a lead target employing water to moderate the spallation neutrons. The facility is characterized by a high-instantaneous neutron beam intensity, high energy resolution and a wide neutron energy spectrum, spanning from sub-thermal to GeV. The first experimental...
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Mrs Elisso Stamati26/07/2022, 07:12
A new experimental area, the NEAR Station, has recently been setup at the n_TOF facility at CERN. It is located at ~3 m distance from the spallation target, just outside the target-moderator shielding wall [1]. The main purpose of the new experimental area is to exploit the extremely high neutron flux in the vicinity of the spallation target to perform irradiation and activation measurements...
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Paul Koehler (LANL)26/07/2022, 09:30
P. E. Koehler1, A. Stamatopoulos1, E. Bond2, T. A. Bredeweg2, A. Couture1, B. DiGiovine1, M. E. Fassbender2, A. C. Hayes-Sterbenz3, G. Keksis2, A. Matyskin2, K. Parsons4, G. Rusev2, J. Ullmann1, C. Vermeulen2
- Physics division, Los Alamos National Laboratory, 87545, NM, USA
- Chemistry division, Los Alamos National Laboratory, 87545, NM, USA
- Theory Division, Los Alamos National...
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Katelyn Cook (Rensselaer Polytechnic Institute)26/07/2022, 09:54
Accurate gamma production in capture reactions is critical for simulation of nuclear reactor applications. This includes modeling of strength functions and level densities and calculating cross sections from resonance parameters. To improve this work, the Rensselaer Polytechnic Institute (RPI) 16-segment gamma-multiplicity NaI(Tl) detector at the Gaerttner Linear Accelerator Center (LINAC) has...
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Ms Maria de los Ángeles Millán Callado (Centro Nacional de Aceleradores (CNA, CSIC-US-Junta de Andalucía) - Dpto. Física Atómica, Molecular y Nuclear (FAMN), Universidad de Sevilla (US))26/07/2022, 10:06
Centro Nacional de Aceleradores (CNA) is a joint interdisciplinary research center from Universidad de Sevilla, Junta de Andalucía and CSIC (Spanish National Research Council) open to external users. CNA has six different facilities, namely: a 3 MV Pelletron tandem accelerator, an 18/9 MeV Cyclotron accelerator, a 1 MV mass spectrometer accelerator, a PET/CT scanner, a 200 kV radiocarbon...
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Josh Brown (UC Berkeley)26/07/2022, 10:18
The Gamma Energy Neutron Energy Spectrometer for Inelastic Scattering (GENESIS) was commissioned at the 88-Inch Cyclotron at Lawrence Berkeley National Laboratory (LBNL). The array consists of up to 27 EJ-309 organic scintillators capable of $n-\gamma$ particle discrimination. The $\gamma$-ray detectors include two Compton-suppressed 4-fold segmented Eurosys CLOVER HPGe detectors, several...
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Thanos Stamatopoulos (Los Alamos National Laboratory)26/07/2022, 10:30
The new Device for Indirect Capture Experiments on Radionuclides at LANSCE: Efforts on measuring the resonance(s) responsible for the extremely large 88Zr(n,g) cross section
A. Stamatopoulos1, P. Koehler1, E. Bond2, T. A. Bredeweg2, A. Couture1, B. DiGiovine1, M. E. Fassbender2, A. C. Hayes-Sterbenz3, G. Keksis2, A. Matyskin2, K. Parsons4, G. Rusev2, J. Ullmann1, C. Vermeulen2
- Physics...
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Emilio Andrea Maugeri (Paul Scherrer Institut)26/07/2022, 11:15
According to the Nuclear Data High Priority Request List published by the Nuclear Energy Agency (http://www.oecd-nea.org/dbdata/hprl/), values of cross sections used in nuclear technology should be known with uncertainties between 1% and 5%, while cross sections of key isotopes involved in s- and r-processes must be known with uncertainties of about 1%.
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The uncertainty associated with the... -
Noritaka Kitamura (University of Tennessee, Knoxville)26/07/2022, 11:39
The new generation of radioactive ion beam facilities will allow the production of unstable nuclei far away from the valley of stability. In the very neutron-rich region, the beta-decay energy window is much larger than the neutron separation energy of the daughter nucleus. Thus, delayed neutron emission after beta decay becomes a prevalent decay mode. To obtain information about the nuclear...
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Ms María de los Ángeles Millán Callado (Centro Nacional de Aceleradores (CNA, US - Junta de Andalucía - CSIC) - Universidad de Sevilla (US), Dpt. Física Atómica, Molecular y Nuclear (FAMN))26/07/2022, 11:51
Pulsed neutron beams are a valuable tool in nuclear physics, but their applications are strongly restricted by the limited number of neutron sources available worldwide [1]. These neutron beams, suitable for "time of flight" (TOF) experiments, can be characterized by their time resolution, the intensity per pulse, and the frequency or repetition rate.
In terms of neutron production,...
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Mr Yasunori Matsuo (Kindai University)26/07/2022, 12:03
Energy resolutions of pulsed neutrons are one of the important parameters for nuclear data measurement by TOF method. The energy resolutions are a facility-specific parameters, and has been evaluated experimentally and numerically at various TOF facilities using pulsed neutrons.
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KURNS-LINAC is an L-band electron linear accelerator with maximum acceleration voltage of 46 MeV established at... -
Nil Mont i Geli (Universitat Politècnica de Catalunya)26/07/2022, 12:15
Abstract
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Neutron production through α-induced nuclear reactions is a key issue in several fields. Specifically, (α,n) reactions are interesting in nuclear astrophysics as a source of neutrons for the slow neutron capture nucleosynthesis (the s-process) [TAI16] and in the α-particles capture process (the α-process) [WOO92, BLI17]. Other fields of interest include the neutron-induced... -
Prof. Seung-Woo Hong (IBS/SKKU)27/07/2022, 06:00
The Nuclear Data Production System (NDPS) is an experimental system for measuring nuclear data by use of neutron Time-of-Flight detection systems built at Daejeon, Korea. The RAON (Rare isotope Accelerator complex for ON-line experiment) provides deuterons and protons up to 98 MeV and 83 MeV, respectively. They are accelerated by a superconducting driver LINAC and are delivered to the neutron...
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Dr Cheolmin Ham (Rare Isotope Science Project, Institute for Basic Science, Republic of Korea)27/07/2022, 06:24
Neutron beams have been utilized not only in the basic science, but also in the various industry sectors such as nuclear power, aerospace, defense industry, and semiconductor industry, over the past decades. Although the needs for the nuclear data using the neutron beam extensively have been increased worldwidely, however, it is still insufficient, in particular for the high energy...
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Mr Dal-Ho Moon (Sungkyunkwan University)27/07/2022, 06:36
The Nuclear Data Production System (NDPS) which is a neutron time-of-flight (TOF) experimental facility of RAON is under construction. The proton and deuteron beams are accelerated up to 83 and 98 MeV, respectively. The proton beams bombarded with a thin Li target will produce mono-energetic neutrons, and continuous-energy neutron spectra will be generated by colliding deuteron beams to a...
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Atsushi Kimura (Japan Atomic Energy Agency (JP))27/07/2022, 06:48
In the field of radiation detection using Ge detectors, pulse pile-up rejection processing (PUR) is widely used. PUR reduces the distortion of the spectrum shape but it causes further increase of dead time. Many papers have been written on the dead time losses with PUR and methods to correct the influence [1],[2]. The proposed correction methods presuppose that the timing of pulses is random....
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Dr Cristiano Lino Fontana (European Commission, Joint Research Centre (JRC))27/07/2022, 07:00
MONNET is a fast neutron source based on a tandem-accelerator, located at the Geel (BE) site of the Joint Research Centre (JRC). It became operational in 2020. MONNET may deliver intense neutron beams in the energy range from $30~\text{keV}$ to $10.1~\text{MeV}$ and from $12.8~\text{MeV}$ to $24~\text{MeV}$. Neutrons are produced with protons or deuterons on lithium, tritium or deuterium...
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Dr Marcin Bielewicz (National Centre for Nuclear Research)27/07/2022, 07:45
It has been proposed to design and build an modular, a simple and effective cosmic ray detector (muon detector) that can be used both in laboratory measurements and in great physics experiments. The main goal of this system is to provide information from cosmic muons that pass the other detector in both in-beam and off-beam experiments for testing and calibration. Moreover, observation of...
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Mr Gongtao Fan (Shanghai Advanced Research Institute, Chinese Academy of Sciences)27/07/2022, 08:09
Shanghai Light Source has been operated since 2009 to provide synchrotron radiations to 40 beamlines of the electron storage ring at a fixed electron energy, 3.5 GeV. The Shanghai Laser Electron Gamma Source (SLEGS) is approved as one of 16 beamlines in the Phase II project in 2016 to produce energy-tunable gamma-ray beams in the inverse Compton slant-scattering of laser photons from a 100 W...
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Gongtao Fan (Shanghai Advanced Research Institute, Chinese Academy of Sciences)27/07/2022, 08:21
The laser Compton slant-scattering is a key technique to achieve the energy tunability in producing gamma-ray beams at synchrotron radiation facilities operated at a fixed electron energy. A pioneering attempt was made of generating MeV gamma-ray beams in the slant-scattering at 70 – 110o in the UVSOR-II electron storage ring [1]. The Shanghai Laser Electron Gamma Source (SLEGS) is dedicated...
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Andreea Oprea27/07/2022, 08:33
GELINA is a neutron time-of-flight facility installed at the European Commission Joint Research Centre (JRC) in Geel (Belgium), dedicated to neutron-induced cross section measurements for more than 50 years. GELINA’s experimental program focusses on nuclear applications and is strongly connected to the JEFF project. Measurements of the most relevant partial cross sections (capture, elastic,...
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Xavier Ledoux (Ganil)27/07/2022, 08:45
X. Ledoux on behalf of the NFS collaboration
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The neutrons for science (NFS)[1] is the running facility of SPIRAL-2 located at GANIL (France). It provides intense neutron beams in the 1-40 MeV range, produced by the interaction of proton or deuteron beams, delivered by the LINEAR accelerator of SPIRAL-2, with lithium or beryllium converters. The intense neutrons flux available and the large... -
Ms Tamara Korbut (Joint Institute for Power and Nuclear Research - Sosny)27/07/2022, 08:57
The non-proliferation issues caused by the civilian use of highly enriched uranium (HEU) were solved by using of several international agreements. Accordingly, efforts were made to reconstruct existing research reactors for using of low enriched uranium (LEU) and to encourage the usage of LEU in the development of new research reactors and other nuclear facilities, such as subcritical systems...
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Gerard Rovira Leveroni (Japan Atomic Energy Agency)27/07/2022, 11:00
Accurate nuclear data for neutron capture reactions of minor actinides (MA) are required to estimate the production and the transmutation rates due to their preponderant role in the study and design of transmutation systems related to nuclear waste management. Since its construction in 2009, continuous research efforts have been carried out to measure neutron-induced reactions at the Accurate...
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Erik Andersson Sundén (Uppsala University)27/07/2022, 11:12
The Chernobyl accident in 1986 deposited radioisotopes like $^{137}$Cs over large parts of Europe. Having a half-life of 30.2 years, $^{137}$Cs is still present in nature, including in mushrooms as well as wild boars, and has become an integrated part in many natural food chains.
In this article, we describe our facility UGGLA (Uppsala Generic Gamma Lab). UGGLA is designed to measure...
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Dr Milan Stefanik (Nuclear Physics Institute of The Czech Academy of Sciences, p.r.i.)27/07/2022, 11:24
The compact accelerator-driven fast neutron sources represent cheaper and smaller alternative to research nuclear reactors. They can be used (as a primary or supplementary tool) for many research activities realized at the nuclear reactors, such as the isotope production, sub-surface exploration, material research, neutron activation analysis, nuclear data provisioning, boron neutron capture...
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Han Yi (Institute of High Energy Physics, CAS)27/07/2022, 11:36
The group of CSNS White Neutron Source (Back-n) has developed a prototype TPC for the physical experiments. The main design goal of white neutron source TPC is to measure the neutron induced light charged particle emitting nuclear reactions, and at the same time, it takes into account many applications such as fission cross section measurement, beam spot measurement and neutron radiography. At...
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Elizabeth McCutchan27/07/2022, 11:48
Nuclear data is an integral part of the activities in many disciplines,
including basic research, nuclear medicine, power generation, and others.
In order to meet the needs of practitioners in these fields, nuclear data must
be made available for their use and kept up-to-date. Doing so requires
that said data be produced and disseminated in an efficient manner.Brookhaven National Laboratory...
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167. First estimation of the kinetic parameters of LR-0 mock-up reactor in a reference configurationTimothée Kooyman (CEA)27/07/2022, 12:00
In the operation of nuclear reactors, the kinetic behaviour of the neutron population is driven by the delayed neutrons. The delayed neutrons fraction is thus one of the key parameters associated to nuclear safety.
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The kinetic parameters (delayed neutrons fraction and generation time) of the LR-0 reactor operated by Centrum výzkumu Řež were measured by CEA using a current-mode neutron noise... -
Ana-Paula Bernardes (CERN)
The contribution will detail the engineering design processes that made the n_TOF facility more versatile as well as the first hardware feed-back from the 2021 run and the 2022 hardware development plan. First experimental results from the 2021 irradiation will also be presented.
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Stephan Pomp (Uppsala University)
We have been developing the NEutron Source in uppSAla (NESSA) facility, placed in the FREIA hall, at Ångström laboratory of Uppsala University. The facility is taking up operations during spring 2022.
The compact neutron generator has been developed by Adelphi Technology, Inc. Using DT reactions, it provides 14 MeV neutrons with a yield of about 4 x 10^10 neutrons per second. The...
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Aaron Couture (Los Alamos National Laboratory)
The Detector for Advanced Neutron Capture Experiments (DANCE) is a
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4-$\pi$ BaF$_{2}$ array located at the Los Alamos Neutron Science
Center (LANSCE) dedicated to performing neutron capture experiments for
a wide range of applications from nuclear astrophysics to nuclear energy
to national security. The unique combination of high neutron flux, high efficiency, high segmentation, and moderate...