Results 251 to 260 of about 1,079,802 (320)

Reasonable drilling angle and technology application for pre-cracking thick-hard roofs before driving gob-side roadways in ultra-thick seams. [PDF]

Sci Rep
He F, Wu Y, Wang D, Zhang J, Tao K.
europepmc   +1 more source

Multiscale insights into sodium storage in hard carbon from <i>operando</i> small- and wide-angle neutron scattering measurements. [PDF]

Chem Sci
Umemoto Y, Ohishi K, Igarashi D, Tatara R, Lin CA, Nakamoto K, Kawamura Y, Hiroi K, Takata SI, Nambu Y, Tateyama Y, Komaba S.   +11 more
europepmc   +1 more source

Characterisation of the axon initial segment and intrinsic excitability in the sub-acute phase post-ischaemic stroke. [PDF]

Brain Commun
King ES, Beros JL, Fujiyama H, Bindoff A, Reynolds JNJ, Tang AD.   +5 more
europepmc   +1 more source

Some of the next articles are maybe not open access.

Related searches:

Determination of Half-Value Layer

Radiology, 1959
In the determination of half-value layer, the geometry involved is usually described as “good” geometry or “poor” geometry. In general, these terms have reference to measurements made under narrow-beam and broad-beam conditions. Such conditions have not been too well explored.
E D, TROUT, J P, KELLEY, A C, LUCAS
semanticscholar   +5 more sources

An alternative method for calculation of half-value layers without the knowledge of attenuation coefficient

Applied Radiation and Isotopes, 2023
Radiation protection is crucial for the safe utilization of ionizing radiation and minimizing the harmful effect upon exposure, hence some standards have been defined by some relevant organizations for the safe uses of radiation. One of the parameters relevant to the calculation of gamma ray shielding is the half-value layer (HVL), which is normally ...
Mehdi Hassanpour, Marzieh Hassanpour, Mayeen Uddin Khandaker, Mohammad Rashed Iqbal Faruque, B. Alshahrani, Hamid Osman   +5 more
openaire   +3 more sources

On the measurement of half‐value layer in film–screen mammography

Medical Physics, 1990
Sources of variations in the measurement of half‐value layer (HVL) in film–screen mammography are evaluated. Two principal sources are the energy responses of ionization chambers and the elemental compositions of the 1100 aluminum‐alloy attenuation materials.
L K, Wagner, B R, Archer, F, Cerra
openaire   +3 more sources

Measurement of half‐value layer in x‐ray CT: A comparison of two noninvasive techniques

Medical Physics, 2000
The purpose of this paper is to determine the accuracy and reproducibility of two noninvasive methods of measuring half‐value layer (HVL), ring and localization, compared with an invasive technique (suspending tube rotation). The ring method uses concentric aluminum rings about a CTDI ionization chamber at isocenter.
R L, Kruger, C H, McCollough, F E, Zink
semanticscholar   +4 more sources