Due to high ramping rates on the Booster Ring (BRing), which is the key part of the high-intensity heavy-ion accelerator facility (HIAF) complex at the Institute of Modern Physics (IMP), thin-wall vacuum chambers are required for all magnets to maintain the eddy currents at a tolerable level. A novel thin-wall vacuum chamber supported by ceramic rings was discussed and evaluated for the HIAF at the

Trapezoidal shaping is frequently used in nuclear digital pulse processing to realize high-resolution and high-throughput spectroscopy. However, this algorithm is susceptible to parameter drifts of a front-end detector and a circuit. To examine how parameter drifts influence the performance of trapezoidal shaping, we keep the shaping parameters unchanged while varying the input signals. From shaping

Digital X-ray imaging systems for megaelectronvolt (MeV)-range photon beams are based on a combination of a scintillator screen and either a camera or an amorphous silicon array. To limit dose rate on electronics and enhance imaging device lifetime, the scintillator screen can be mirror-coupled to the camera. Performances of such devices are a compromise between exposure time and spatial resolution

This article explores the phenomenon of dark current random telegraph signal (DC-RTS) noise in commercial off-the-shelf CMOS image sensors. Five sensors were irradiated with high-energy photons to a variety of doses and analyzed with a wavelet-based signal reconstruction algorithm. The algorithm is explained in detail and the radiation effects on individual pixels are discussed. Finally, the production

Radiation sensor interface circuits can be mounted on sensor nodes in wireless sensor networks to detect radiation signals. They respond quickly to operators and command centers, allowing appropriate decisions to be made to mitigate nuclear power plant accidents. For instance, high-level radiation leaked from a reactor building during a nuclear plant accident can degrade the performance of the radiation

This work presents throughput-enhanced readout ASIC (TERA), an integrated multichannel analog pulse processor (APP), suitable for processing signals generated from solid-state detectors, such as silicon drift detectors (SDDs) coupled to pulsed reset-type charge-sensitive amplifiers (CSAs). In particular, this development targets applications at high count rates (≈Mcps) in energy-dispersive X-ray spectroscopy

Barium fluoride (BaF 2 ) crystals are considered as a candidate scintillator for scintillation detectors in high-energy physics because of high radiation hardness and short decay time (< 1 ns) of the fast emission component. However, the high level of the slow emission component can deteriorate the detector time resolution. Special approaches are required to decrease this slow component. Using solar-blind

Plastic-based gamma-ray detector materials such as polyvinyl toluene (PVT) occasionally suffer from loss of optical light transmission due to internal defects or “fogging” when exposed to some environmental conditions over time. Fogging results in reduced scintillation light propagated to the photomultiplier tube for collection. Investigations of the physical cause of these defects and their associated

The 15th International Conference on Inorganic Scintillators and Their Applications (SCINT 2019) was organized by Tohoku University, and held in Sendai, Japan, September 29–October 4, 2019. A total of 246 colleagues from 24 different countries finally participated in the conference. The program consisted of seven keynote invited and four invited lectures, and 61 oral and 88 poster contributions. Extended

Cs 2 LiLaBr 6-x Cl x :Ce (CLLBC) has high energy resolution for gamma detection and high sensitivity for neutron detection. It is one of the neutron-gamma dual-mode scintillators developed in recent years. This work studies the performance of an 18-mm CLLBC cube for gamma and neutron detection for temperatures between − 20 °C and 50 °C. In addition, the scintillator was coupled to the SensL J- and

The DArk Matter Particle Explorer (DAMPE) is a satellite-borne, calorimetric-type, high-energy-resolution detector for the precise measurement of high-energy electrons, gamma rays, and nuclei from deep space. The DAMPE electromagnetic calorimeter consists of bismuth germanate (BGO) crystals that can measure incident hadron energies from 50 GeV to 100 TeV. For an inorganic scintillator, such as BGO

DArk Matter Particle Explorer (DAMPE), a satel- lite-based cosmic-ray (CR) and gamma-ray measurement experiment, relies on its calorimeter to measure the energy of incident particles. The calorimeter adopts crystals of bismuth germanium oxide (BGO) as scintillating material, and it is designed to aim for measurements of energy ranging from 50 GeV to 100 TeV in the case of a CR nucleus. This article

The Mu2e experiment at Fermilab will search for the charged lepton flavor violating neutrino-less conversion of a negative muon into an electron in the field of an aluminum nucleus [1] , [2] . The Mu2e detector is comprised of a tracker, an electromagnetic calorimeter, and an external veto for cosmic rays. The calorimeter plays an important role in providing excellent particle identification capabilities

Carbazole crystals were grown using self-seeding vertical Bridgman technique, and the scintillation properties for neutron detection were investigated. Results of powder X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR) analyses indicated the single phase of the grown carbazole crystal with orthorhombic structure. Photo- and radio-luminescence measurements were carried out

Thallium zirconium chloride (Tl 2 ZrCl 6 ) and its hafnium analog (Tl 2 HfCl 6 ) are intrinsic scintillators that have been recently reported, primarily for gamma-ray detection and spectroscopy. These crystals are especially useful for dual-mode detection, gammas exploiting the highly effective $Z$ of the materials, and fast neutrons using the (n, p) and (n, $\alpha$ ) reactions with chlorine. $Z_{\mathrm

The glass capillary plate (CP) gas detector is a hole-type micropattern gas detector (MPGD) as well as a gas electron multiplier (GEM). An interesting feature of the hole-type MPGD is that since the electron multiplication takes place in each of the highly granulated holes, pixelized 2-D imaging with a high position resolution is possible. Using the CP, we have been developing a gas scintillation imager

As a scintillating material, colloidal quantum dots (cQDs) are proving to be a promising alternative to traditional organic fluorophores used for radiation detection. By varying the size and composition of the cQDs, their physical and optical properties can be controlled. Furthermore, through appropriate functionalization of the cQD surface, they can be easily integrated within a variety of matrices

Presents the table of contents for this issue of the publication.

When an X-ray beam illuminates a material’s surface, the backscattered photo-electrons are emitted from the surface and stimulate the system-generated electromagnetic pulse (SGEMP). With the increase in X-ray flux, the space charge-limited (SCL) effect occurs and a relatively thin layer develops near the emitting surface. The characteristic time is defined as the occurring time of the SCL effect. In

We have developed a dedicated front-end electronics board for a high-pressure xenon gas time projection chamber for a neutrinoless double-beta decay search. The ionization signal is read out by detecting electroluminescence photons with silicon photomultipliers (SiPMs). The board reads out the signal from 56 SiPMs and records the waveforms at 5 MS/s with a wide dynamic range up to 4000 photons/200

Presents the front cover for this issue of the publication.

Presents a listing of the editorial board, board of governors, current staff, committee members, and/or society editors for this issue of the publication.

Presents the table of contents for this issue of the publication.

The sixth edition of the International Conference on “Advancements in Nuclear Instrumentation Measurement Methods and their Applications” (ANIMMA) was held in Portorož, Slovenia, from June 17–21, 2019. The conference attracted almost 300 participants from 32 different countries, coming from academy, research institutes, and industry to discuss new scientific and technical prospects in all fields where

In this article, a new method to quantify the activity of spatially distributed gamma-emitting isotopes (hotspots) in homogenous content waste drums without the use of a collimator is presented. The method utilizes a spatial digital filter derived using maximum likelihood (ML) to determine multiple sources’ positions and then calculate their activities. To solve the multidimensional maximization problem

We have developed a Fabry–Perot extensometer that is able to operate at high temperature (up to 400 °C), for in pile experiments in material testing reactor, under high neutron and gamma flux. For that purpose, we have revised the basic scheme of an extrinsic Fabry–Perot interferometer (EFPI) to limit the effects of radiation and especially of the fast neutron fluence and to adapt the sensor to high

The neutron field of various irradiation positions of the TRIGA Mark II reactor of the Jožef Stefan Institute (JSI) has been thoroughly characterized by neutron activation dosimetry and miniature fission chambers techniques. In order to have a fully validated calculation scheme to analyze and plan experiments, the gamma field also has to be experimentally validated. The 10-year long collaboration between

A series of cerium samarium tungstates Ce (2–x) Sm x (WO 4 ) 3 with $x \le 0.3$ was synthesized by a coprecipitation method followed by thermal treatment at 1000 °C. The polycrystalline compounds were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and photoluminescence (PL) experiments. Using the Rietveld procedure, the decrease in cell parameters showed that a solid

In the framework of the radioactive waste drum characterization using neutron coincidence counting, the Nuclear Measurement Laboratory of French Alternative Energies and Atomic Energy Commission (CEA) Cadarache is studying plastic scintillators as an alternative to ideal but costly 3 He gas proportional counters. Plastic scintillators are at least five times cheaper for the same detection efficiency

The Nuclear Science User Facilities (NSUF) is the U.S. Department of Energy Office of Nuclear Energy’s only designated nuclear energy user facility. Its mission is to provide nuclear energy researchers access to world-class capabilities and to facilitate the advancement of nuclear science and technology. This mission is supported by providing access to state-of-the-art experimental irradiation testing

Interest in analyzing the enrichment of uranium waste in drums, which are generated by a nuclear fuel manufacturer, has recently been growing in South Korea. However, high-purity germanium (HPGe) and thallium-doped sodium iodide [NaI(Tl)] that are used to measure uranium enrichment require much time to measure drum size samples because large-area detectors cannot be manufactured due to the limitation

This article presents a model setup of neutron sensors consisting of a Li-glass scintillator coupled with a silicon photomultiplier (SiPM) array. The newest developments based on SiPMs array enable high-gain and the low-light detection capabilities of the traditional photomultiplier tube (PMT) while offering the benefits of a solid-state sensor: low-voltage operation, insensitivity to magnetic fields

The neutron sensitivity of the cerium-doped gadolinium aluminum gallium garnet (GAGG:Ce) has been determined for five different scintillator volumes. The good $\gamma $ ray detection performance of GAGG:Ce potentially results in a background signal that hides the low-lying neutron-capture $\gamma $ rays from de-excitation of 156 Gd and 158 Gd when the detector volume, and therefore the total $\gamma

Medipix and Timepix devices, installed in the ATLAS cavern, have provided valuable complementary luminosity information. Results are presented from measurements with the Timepix3 (TPX3) detectors. In contrast with previously employed frame-based data acquisition, the TPX3 detector remains active continuously, sending information on the pixel hits as they occur. The hit- and cluster-counting methods

During a severe nuclear accident leading up to core melting, molten corium–concrete interaction (MCCI) and core-coolant water reaction both release large amounts of hydrogen (H 2 ) gas in the containment atmosphere. According to the Shapiro–Moffette ternary diagram and depending on local partial pressures of H 2 , air, and water vapor, deflagration/detonation may occur with potential deleterious impact

This article presents the development, full-characterization, and in-core testing of a miniature neutron detector for the investigation of highly localized in-core neutronics effects in the zero-power reactor CROCUS, operated at the École Polytechnique fédérale de Lausanne (EPFL), Switzerland. A ZnS: 6 LiF screen, mixing inorganic scintillator and neutron converter, with a surface of 1 mm 2 and a thickness

The absence of online radiation-monitoring systems (RMSs) has been observed in the case of the Fukushima nuclear accident. As the tsunami destroyed 23 of the 24 status-monitoring points, almost no relevant radiation dose measurement data were available. Rapid deployment of a mobile radiological unit that can quickly determine the activity and direction of the radioactive cloud spread on the ground

Automatic and fast identification of gamma-ray-emitting radionuclides is a challenge in the field of nuclear safety, especially in case of emergency, since it requires complex calculations and often the knowledge of experts to interpret the data. We present a development of an automatic identification method based on convolutional neural networks (CNNs) as a new tool to analyze gamma-ray spectra in

Gamma logging for uranium exploration is currently based on total counting with the Geiger–Müller gas detectors or NaI(Tl) scintillators. However, the total count rate interpretation in terms of uranium concentration may be impaired in case of roll fronts when the radioactive equilibrium of the natural 238 U radioactive chain is modified by the differential leaching of uranium and its daughter radioisotopes

The assessment of fissile material mass is a key requirement to enhance radioactive waste management and to ensure a high level of safety in the nuclear industry. The assessment of plutonium fissile mass by passive coincidence measurements is usually obtained by detecting the neutrons generated by the spontaneous fissions of Pu isotopes. The detection and the quantification of a fissile mass in the

The DIstributed Sensing for COrium Monitoring and Safety (DISCOMS) project considers the use of optical fiber sensing cables embedded into the concrete floor under the reactor vessel for remote monitoring of a severe nuclear accident. This article focuses on the selection and testing of single-mode optical fibers with limited radiation-induced attenuation (RIA). To simulate the normal operation period

This article presents a procedure for optimizing the charge comparison method (CCM) used for pulse shape discrimination (PSD). Without prior knowledge of the signals or the readout system, our procedure automatically optimizes the integration periods maximizing the discrimination ability of the radiation detector. This procedure is innovative in its adaptability and automation without being complicated

Diagnostic “Divertor Neutron Flux Monitor (DNFM)” is one of the diagnostics to determine the neutron yield and the thermonuclear power of the ITER facility. To detect neutrons, this diagnostic uses three detector modules. The expected neutron flux in the detector module location is 10 6 –10 13 n $\cdot $ cm $^{-2}\,\,\cdot \,\,\text{s}^{-1}$ . The neutron flux and the neutron yield should be measured

Advertisement.

Advertisement.

Prospective authors are requested to submit new, unpublished manuscripts for inclusion in the upcoming event described in this call for papers.

These instructions give guidelines for preparing papers for this publication. Presents information for authors publishing in this journal.

The Affiliate Plan, established by the IEEE Board of Directors, enables individuals who are not members of the IEEE, but who have an interest in the field of plasma science, to join the IEEE Nuclear and Plasma Sciences Society. Admission as an affiliate requires only membership in a professional society listed here. Affiliates pay a special fee, and have all Society privileges except that of holding

A set of samples based on InGaN/GaN multiple quantum well (QW) structures with an extremely thick active region and high QW numbers was prepared on different substrates by metal organic vapor phase epitaxy. Their morphology was studied by SEM images, and their optical properties, including photoluminescence (PL) excitation, PL emission spectra, and PL decay curves, were measured by means of time-resolved

This article presents the development of diced SrI 2 :Eu arrays and their scintillation properties when coupled with a multipixel photon counter (MPPC) array. Using a dicing technique specific to halide scintillators, a high-energy resolution scintillator array is developed that is cost-effective and widely applicable. The developed SrI 2 :Eu arrays are of $3 \times 3 \times 3$ mm 3 /pixel $4 \times

In this article, single crystals of a new nonhygroscopic scintillating material of tetrafluoroaluminate (TlAlF 4 ) were grown using the Bridgman–Stockbarger technique. The diffraction pattern obtained from powder X-ray diffraction was found to be in good agreement with the reference data. The X-ray-induced luminescence measurements of the grown crystal sample exhibit a very strong intrinsic emission

For area and power constraint applications in mission critical systems, the traditional fast Fourier transform (FFT) design requires huge hardware resources for data processing. In this article, we, therefore, present a low-overhead radix-2 FFT design that reduces hardware resources by simplifying the first two stages of the butterfly computations. Both the proposed design and the traditional design

We measured the scintillation light yield of ZnWO 4 crystals using a quasi-monochromatic neutron beam energy of 865 keV. Irradiating the neutron beam on two surfaces, which are almost perpendicular to the crystal axis, the light yield of oxygen recoil was measured. The obtained light yield ratio of a neutron recoil to gamma-ray-induced electron recoil for two surfaces was 0.235 ± 0.026 and 0.199 ±

Scintillation detectors exhibiting high spatial resolution and fast timing capabilities are of vital importance for synchrotron sources. These detectors may be exposed to a variety of X-ray energies (up to 140 keV) and used in high frame rate applications. Here, we describe the advances in the development of thin-film LuI 3 :Ce scintillators for higher energy X-ray imaging, with fast timing and high

Pile-up is a common problem in high-count-rate gamma spectroscopy. Many techniques have been introduced to overcome this problem. Sparse reconstruction is a recent signal processing method that could be used to solve this problem. In this article, we propose a modified sparse reconstruction method to overcome pulse pile-up, especially with ultrahigh count rates. The method uses two regularization terms

The scintillation properties of Mg 2+ -codoped Lu 0.6 Gd 2.4 Al 2 Ga 3 O 12 :Ce (LGAGG:Ce,Mg) single crystal grown by Czochralski’s method are investigated. The light yield (LY), scintillation decay time, and coincidence time resolution are presented in comparison with a GAGG:Ce,Mg reference crystal. The LY of 26 200 photons/MeV obtained for LGAGG:Ce,Mg is lower than that of 39 600 photons/MeV for

This article is directed on the creation of composite scintillators which are based on the films and crystals of R 2 Si 2 O 7 :Ce (R = Lu, Gd, La) pyrosilicates using the liquid phase epitaxy (LPE) growth method for application in the radiation monitoring of different components of mixed ionization fluxes. Such types of composite scintillators are epitaxial structures containing film scintillators

In this article, we demonstrate the results of experimental and theoretical studies of F-centers in BaBrI single crystals. We have observed two types of F-centers related to an electron trapped in the iodine or bromine vacancy site. It was found that absorption bands due to F-centers can be induced either by radiation or additive coloration. The excitonic mechanism of F-center production was established

We present the experimental results on the impact of transistor width modulation and power supply voltage variation on the $\alpha $ -soft error rate (SER) in a 65-nm CMOS 6T static random access memory (SRAM) obtained from an accelerated test experiment using an Am- $241~\alpha $ -source. Five 6T cells with various combinations of transistor widths were tested and the results show that nMOS and pMOS

Single crystals of Eu 2+ -activated SrI 2 , one of the most leading-edge scintillators for gamma-ray spectroscopy applications, have a low radioactive background, excellent energy resolution of 2.6%–3% at 662 keV, and high light yield of 80 000–120 000 photons/MeV. In this article, tetravalent ions codoping, namely, Hf 4+ codoping, was used to enhance its scintillation performance. $\emptyset 12$ mm