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The gamma-ray background in the indoor environment has been measured up to 3 MeV to evaluate the feasibility of studying low cross-section (nanobarn to picobarn range) astrophysical reactions at the Facility for Research in Experimental…

Instrumentation and Detectors · Physics 2020-07-14 Sathi Sharma , M. Saha Sarkar

Over 10 years ago we proposed an experiment on measuring the characteristics of radiative neutron decay in papers [1, 2]. At the same time we had published the theoretical spectrum of radiative gamma quanta, calculated within the framework…

Nuclear Experiment · Physics 2015-05-13 R. U. Khafizov , S. V. Tolokonnikov , V. A. Solovei , M. R. Kolhidashvili

The neutron dose distributions on observation distances and on observation angles were measured using a Wendi-II neutron dose-meter at the deep tumor therapy terminal at HIRFL (Heavy Ion Research Facility in Lanzhou) as 12C ions with…

Medical Physics · Physics 2016-01-01 Jun-Kui Xu , Wu-Yuan Li , Wei-Wei Yan , You-Wu Su , Zong-Qiang Li , Mao Wang , Cheng-Guo Pang , Chong Xu

The 48Ca({\gamma},n) cross section was measured using {\gamma}-ray beams of energies between 9.5 and 15.3 MeV generated at the Triangle Universities Nuclear Laboratory (TUNL) high-intensity {\gamma}-ray source (HI{\gamma}S). Prior to this…

Nuclear Experiment · Physics 2015-05-30 J. R. Tompkins , C. W. Arnold , H. J. Karwowski , G. C. Rich , L. G. Sobotka , C. R. Howell

Photonics sensing has long been valued for its tolerance to harsh environments where traditional sensing technologies fail. As photonic components continue to evolve and find new applications, their tolerance to radiation is emerging as an…

Instrumentation and Detectors · Physics 2017-10-20 Lonnie T. Cumberland , Ryan Fitzgerald , Nikolai N. Klimov , Ronald E. Tosh , Ileana M. Pazos , Zeeshan Ahmed

The aim of this study is to measure the radon mass exhalation rate from common granite building materials used in the East and Northeast part of Portugal. Twelve cubic shaped samples were measured. Nine of them without any coating and three…

Medical Physics · Physics 2020-08-25 Sandra Soares , Joaquim Kessongo , Yoenls Bahu , Luis Peralta

Environmental radioactivity analysis has been carried out to determine the level of environmental radioactivity and the potential radiological hazards at Tanjung Enims coal mine. Gamma spectroscopy method has been carried out to identify…

Medical Physics · Physics 2022-04-22 Muhammad Farhan Ramadhany , Gede Sutresna Wijaya , Anung Muharini

We compute the $^{63}$Ga(p,$\gamma$)$^{64}$Ge and $^{64}$Ge(p,$\gamma$)$^{65}$As thermonuclear reaction rates using the latest experimental input supplemented with theoretical nuclear spectroscopic information. The experimental input…

Nuclear Theory · Physics 2024-12-19 Ning Lu , Yi Hua Lam , Alexander Heger , Zi Xin Liu , Hidetoshi Yamaguchi

A new method of experimental verification of radial dose distribution models using solid state thermoluminescent (TL) detectors LiF:Mg,Cu,P has been recently proposed. In this work the method was applied to verify the spatial distribution…

Instrumentation and Detectors · Physics 2014-01-28 W. Gieszczyk , P. Bilski , P. Olko , B. Obryk

The Jiangmen Underground Neutrino Observatory (JUNO) will install about 18,000 20-inch Photomultiplier Tubes (PMTs) in the center detector to achieve 3%/sqrt(E(MeV)) energy resolution. From the full detector Monte Carlo (MC) simulation,…

Instrumentation and Detectors · Physics 2018-06-13 Xuantong Zhang , Jie Zhao , Shulin Liu , Shunli Niu , Xiaoming Han , Liangjian Wen , Jincheng He , Tao Hu

The pattern of radiation energy deposition in substances at the microscopic level of lattice, molecule size, or the cell's nucleus is not uniform. The energy of radiation is transferred to the substance medium in the form of discrete,…

Medical Physics · Physics 2022-10-14 Elsayed K. Elmaghraby , Mohamed Bahaaeldin-Afifi

We report calculations of energy levels, radiative rates, and electron impact excitation rates for transitions in Li-like ions with 12 <= Z <= 20. The GRASP (general-purpose relativistic atomic structure package) is adopted for calculating…

Atomic and Molecular Clusters · Physics 2015-06-05 K. M. Aggarwal , F. P. Keenan

A series of 32 green tea leaves samples from different Asian producers were analyzed by direct {\gamma}-ray spectrometry at the PRISNA facility in Bordeaux. All the samples contain about 500 Bq/kg of 40K and 10 Bq/kg of 210Pb. As expected,…

Popular Physics · Physics 2018-06-27 M. S. Pravikoff , Ph. Hubert , H. Ohsumi

Calculations for energy levels, radiative rates and lifetimes have been performed for three Ne-like ions, namely Hf~LXIII, Ta LXIV and Re LXVI, for which the general-purpose relativistic atomic structure package (GRASP) has been adopted.…

Atomic Physics · Physics 2018-04-11 K M Aggarwal

We report the highest compression reached in laboratory plasmas using eight laser beams, E$_{laser}$$\approx$12 kJ, $\tau_{laser}$=2 ns in third harmonic on a CD$_2$ target at the ShenGuang-II Upgrade (SGII-Up) facility in Shanghai, China.…

We present measurements of radioactive contamination in the high-resistivity silicon charge-coupled devices (CCDs) used by the DAMIC experiment to search for dark matter particles. Novel analysis methods, which exploit the unique spatial…

The paper discusses some 3D simulations to compute the ionizing radiation dose during laser-plasma experiments leading to the generation of accelerated protons and electrons. Also, we suggest a new method to increase the measurement…

Instrumentation and Detectors · Physics 2019-10-02 M. Ganciu , A. Chirosca , A. Groza , E. Stancu , O. Stoican , D. B. Dreghici , B. Butoi , C. Ticos , B. Mihalcea , B. Cramariuc

The level density and gamma-ray strength function in the quasi-continuum of 238Np has been measured using the Oslo method. The level density function follows closely the constant-temperature level density formula and reaches 43 million…

Primary gamma-ray spectra for a wide excitation-energy range have been extracted for 44Ti from particle-gamma coincidence data of the 46Ti(p,t gamma)44Ti reaction. These spectra reveal information on the gamma-decay pattern of the nucleus,…

This work is an exposure assessment for a population living in an area contaminated by use of depleted uranium (DU) weapons. RESRAD 5.91 code is used to evaluate the average effective dose delivered from 1, 10, 20 cm depths of contaminated…

Medical Physics · Physics 2007-05-23 C. Giannardi , D. Dominici