scholarly journals Preliminary Study (1) for Development of Computed Radiography (CR) Image Analysis according to X-ray Non-destructive Test by Wood Species

2021 ◽  
Vol 37 (3) ◽  
pp. 220-231
Author(s):  
Jung Il Song ◽  
Han Seul Kim
Keyword(s):  
Image Analysis ◽  
Wood Species ◽  
Computed Radiography ◽  
X Ray ◽  
Destructive Test ◽  
Preliminary Study ◽  
Non Destructive

X-ray Advances in Support of Advanced Packaging – Today and Tomorrow

2018 ◽  
Vol 2018 (1) ◽  
pp. 000409-000414
Author(s):  
David Bernard
Keyword(s):  
Heat Dissipation ◽  
X Ray ◽  
Destructive Test ◽  
Heat Transfer Efficiency ◽  
Advanced Packaging ◽  
History Of ◽  
Production Output ◽  
2D And 3D ◽  
Non Destructive

Abstract As advanced packaging continues to develop to support novel and emerging technologies, the need for, ideally non-destructive, test and inspection continues to be vital to ensure the quality and assurance of functionality, wherever the package may go. This is made ever more difficult as the package complexity increases, whilst the feature sizes within continue to decrease. X-ray technology has long been an important part of the non-destructive inspection protocol over the history of advanced packaging and will continue to need to play a more important part in the future. This paper will review the advances made in both 2D and 3D X-ray inspection over recent years and the new opportunities that are now starting to be available, especially in 3D, or CT, inspection, that will enable this 120-year-old technology to remain relevant to and supportive of the needs of advanced packaging. To highlight the above, a case study will be presented on the faults that 2D and CT X-ray analysis can find in LEDs during their manufacture. LEDs are a good example of the remarkable developments in packaging and technology over the last 20 years, where the use of higher powers, smaller sized features and increased reliability requirements intensify the need for higher quality, more consistent production output. Flaws cannot be accepted, especially as higher usage powers mean higher operating temperatures which, in turn, then requires very good thermal conductivity in the package to move heat away from key areas. Without good heat dissipation then heat stresses at the interfaces can cause delamination or die fractures, so reducing LED lifetimes. The presence of voids, particularly at the die to package interface, creates air gaps that reduces heat transfer efficiency. As many LEDs are potted, or encapsulated, the only non-destructive test option to check for voiding and other faults is by using 2D and CT X-ray analysis.

Damage Progression in Fuze Assemblies Subjected to High-G Mechanical Shock Using X-Ray Digital Volume Correlation

2017 ◽  
Author(s):  
Pradeep Lall ◽  
Nakul Kothari ◽  
John Deep
Keyword(s):  
Physical Structure ◽  
Test Methods ◽  
Remaining Useful Life ◽  
Mechanical Shock ◽  
Internal Damage ◽  
X Ray ◽  
Destructive Test ◽  
Useful Life ◽  
Scan Data ◽  
Non Destructive

Field extracted electrical assemblies, subjected to harsh environments including storage, and transportation may have often sustained degradation in their material properties and physical structure, without exhibiting external signs of damage. The lack of macro-indicators of damage makes the quantification of sustained damage and the remaining useful life challenging for assessment of the reliability makes quantification of accrued damage and remaining useful life much difficult. The operation environment requires survivability under high-g loads often in excess of 10,000g-100,000g. The need of non-destructive test methods for determination of the internal damage and the assessment of expected operational reliability under the presence of accrued damage from prolonged storage is extremely desirable. While a number of non-destructive test methods such as x-ray, and acoustic imaging exist in the state-of-art — they are limited to the acquisition of imaging of the internal damage state without the ability of conducting measurement of deformation under the action of environment loads. There is scarcity of literature on studying progressive damage to the physical structure of fuze components when subjected to high g shocks. Previously, researchers have studied the reliability of fuze subjected to high-temperature and high-g mechanical shocks, measured redundancy and reliability of fuze electronics through prediction of failure rates and MTTF using MIL-HDBK-217F standard, and performed on fault diagnosis. In this paper, a full-field deformation measurement technique has been presented to monitor damage in key components of the fuze after exposure to multiple high G shocks. Fuze assembly has been subjected to 30,000g mechanical shock until failure. The fuze assembly is CT scanned at regular intervals and the scan data is compared to the pristine scan data to compute physical deformations and damage sustained during the mechanical shock event.

Assessment of distribution of pellets in tablets by non-destructive microfocus X-ray imaging and image analysis technique

2016 ◽  
Vol 301 ◽  
pp. 228-233 ◽  
Author(s):  
Zsombor Csobán ◽  
Barnabás Kállai-Szabó ◽  
Nikolett Kállai-Szabó ◽  
Tamara Takács ◽  
Tamás Hurtony ◽  
...  
Keyword(s):  
Image Analysis ◽  
Image Analysis Technique ◽  
X Ray ◽  
X Ray Imaging ◽  
Analysis Technique ◽  
Non Destructive

Non-destructive characterization of deer (Cervus Elaphus) antlers by X-ray microtomography coupled with image analysis

2007 ◽  
Vol 225 (3) ◽  
pp. 258-263 ◽  
Author(s):  
A. LÉONARD ◽  
L. P. GUIOT ◽  
J.-P. PIRARD ◽  
M. CRINE ◽  
M. BALLIGAND ◽  
...  
Keyword(s):  
Image Analysis ◽  
Cervus Elaphus ◽  
X Ray ◽  
Non Destructive ◽  
Non Destructive Characterization

scholarly journals Visualization of Commercial Coating Penetration into Fagus crenata Blume Wood Using a Non-Destructive X-ray Microtomography

Coatings ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 927
Author(s):  
Tyana Solichah Ekaputri ◽  
Ayuni Nur Apsari ◽  
Takashi Tanaka
Keyword(s):  
Image Analysis ◽  
Penetration Depth ◽  
Wood Surface ◽  
Fagus Crenata ◽  
Coating Materials ◽  
Japanese Beech ◽  
X Ray ◽  
Fagus Crenata Blume ◽  
2D And 3D ◽  
Non Destructive

Coatings can be used as a preservative method to protect the wood, especially the wood surface. The different component of the coating’s dependence of the purpose of it. The Japanese beech (Fagus crenata Blume) applied by several Japanese commercials coating materials. The coatings application used were spray type and brush type. X-ray microtomography in Fuji, Japan was used for visualized the coating samples. The X-ray target used were Cu, and Mo with Al filter. The X-ray image analysis in 2D and 3D were conducted using image J and VGStudio Max, respectfully. The coating’s containing materials and the concentration of it strongly affected the image result of X-ray microtomography visualization. The different X-ray target shows the different image results. The larger energy of X-ray (Mo with Al filter) is recommended to use for visualization. The X-ray images shows the penetration phenomena, which can be applied to calculate the penetration depth.

scholarly journals PENGUKURAN KETULENAN EMAS MENGGUNAKAN KAEDAH UJIAN TANPA MUSNAH: SUATU ULASAN PERBANDINGAN

2021 ◽  
Vol 9 (2) ◽  
pp. 91-106
Author(s):  
FAZRUL MOHD NOR ◽  
ABD RAHMAN TAMURI ◽  
ABD KHAMIM ISMAIL ◽  
MOHD ERFY ISMAIL ◽  
MOHD HASRIL AMIRUDDIN
Keyword(s):  
Test Method ◽  
X Ray ◽  
Destructive Test ◽  
The Difference ◽  
Gold Industry ◽  
Non Destructive ◽  
And Tungsten

AbstrakPenentuan ketulenan jongkong emas dengan kaedah ujian tanpa musnah adalah perkara yang paling mencabar dalam industri emas terutama jika jongkong emas dipalsukan dengan cara meletakkan tungsten di dalamnya. Instrumen yang sedia ada mempunyai keterbatasan untuk menentukan ketulenan jongkong emas dan sukar untuk mengesan tungsten di dalamnya kerana tungsten mempunyai ketumpatan yang hampir sama dengan emas. Kajian ini mengemukakan keterbatasan instrumen kaedah ujian tanpa musnah seperti densimeter, alat timbangan, sinar-x pendarfluor dan ultrasonik. Dalam kajian ini menemui kesukaran untuk mengenal pasti emas palsu menggunakan instrumen kaedah ujian tanpa musnah seperti ultrasonik dan x-ray fluorescence (XRF) kerana instrumen ini mempunyai batasan. Setakat ini tiada lagi kajian yang berkaitan pemalsuan jongkong emas kerana harganya yang mahal untuk dijadikan sebagai sampel kajian. Masalah jongkong emas palsu dapat diselesaikan jika ketepatan instrumen yang digunakan untuk mengukur ketumpatan dapat ditingkatkan lagi sehingga 0.01 g/ml. Ini kerana perbezaan antara ketumpatan emas dan tungsten adalah 0.05 g/ml. Pemalsuan emas dengan mencampurkan tungsten akan dapat dikesan jika ada instrumen yang mempunyai ketepatan sekurang-kurangnya 0.01 g/ml. Manakala instrumen lain seperti XRF digunakan untuk mengesahkan ketulenan emas di bahagian permukaan sahaja. Oleh itu, bagi pengujian yang lebih menyeluruh masalah jongkong emas palsu ini perlu diselesaikan dengan menggabungkan kedua-dua kaedah ini.   Abstract Determination of the gold bar purity by non-destructive method remains one of the most challenging in gold industry especially when the tungsten is inside the gold bar. The existing instruments have limitations in their accuracy to determine the purity of gold when tungsten also inside the gold bar since both tungsten and gold have almost similar densities. This study presents the limitations of the non-destructive test method instruments such as densimeter, weighing balance, x-ray fluorescence (XRF) and ultrasonic in determining the purity of gold. In this study found the difficulty in identifying counterfeit gold using non-destructive test method instruments such as ultrasonic and XRF due to some limitations. So far, there are no studies related to the counterfeiting of gold bars due to its expensive price to be used as a study sample. The problem of counterfeit gold bars can be solved if the accuracy of the instrument used to measure the density can be further increased up to 0.01 g/ml. This is because the difference between the density of gold and tungsten is 0.05 g/ml. Gold counterfeiting by mixing tungsten will be detectable if there is an instrument that has an accuracy of at least 0.01 g/ml. While other instruments such as XRF will be used to verify the purity of gold on the surface only. Therefore, for more thorough testing the problem of fake gold ingots needs to be solved by combining these two methods.

scholarly journals Non-destructive identification of physical damage in mung bean (Vigna radiata L.) seeds by X-ray image analysis

2020 ◽  
Vol 36 (3) ◽  
Author(s):  
Thiago Pulici Martins Machado ◽  
André Dantas de Medeiros ◽  
Daniel Teixeira Pinheiro ◽  
Laércio Junio Da Silva ◽  
Denise Cunha Fernandes dos Santos Dias
Keyword(s):  
Image Analysis ◽  
Vigna Radiata ◽  
Mung Bean ◽  
Seed Quality ◽  
Physical Damage ◽  
Physical Quality ◽  
X Ray ◽  
Physical Variables ◽  
Non Destructive

Global demand for pulses such as the mung bean has grown in the last years. For successful production of these crops it is necessary to use high quality seeds. Methodologies based on X-ray image analysis have been used as a complementary tool to evaluate the physical quality of seeds due to their speed and potential for automation. The aim of this study was to evaluate the efficiency of X-ray analysis for non-destructive evaluation of the physical quality of Vigna radiata seeds and to relate the variables obtained with their physiological potential. For this, seeds from eight lots were X-rayed and subsequently subject to germination test. In total, 18 physical and physiological parameters were determined. The X-ray image analysis was efficient for evaluating the internal morphology of Vigna radiata seeds and allowed the identification of various damage types. However, it was not possible to relate the physical variables to the seed quality as the lots presented similar germination percentage. Physical variables such as solidity and circularity are related to percentage of root protrusion and length of seedling hypocotyl. Low relative densities indicate deteriorated tissues, related to severe morphological damage and non-viable seeds.

scholarly journals Calcium Sulfate Dihydrate (gypsum) Quality Test Using Radiography Non Destructive Test (RNDT)

2019 ◽  
Author(s):  
Hendra Himawan ◽  
Ulil Albab Taufiq ◽  
Rudi Setiawan ◽  
Masturi . ◽  
Susilo . ◽  
...  
Keyword(s):  
Digital Image ◽  
Calcium Sulfate ◽  
Industrial Site ◽  
Radiographic Image ◽  
X Ray ◽  
Destructive Test ◽  
Calcium Sulfate Dihydrate ◽  
Defect Area ◽  
Non Destructive ◽  
Crack Defect

Calcium Sulfate Dyhidrate/gypsum is a material commonly found in nature which is used at industrial site for making a wall, roof, etc. One of the problems found in material industry is crack deffect, white crack defects is very difficult be identified it visibility. Radiography Non-Destructive Test (RNDT) is non destructive test supported by digital radiographic producing digital image. This work aims to determine the gypsum properties to find out crack defect using RNDT. Radiographic image depends on exposure factors (kV, mA, s, and SID). Digital image can be proceed using OctaveGUI to determine the crack defect area, image processing using Prewitt detection. Radiographicdigitalresultof3gypsumboards(a,bandc)and2gypsumprofilsamples (d and e) were found the crack on each samples. RNDT was perfomed using X-ray voltageat60kVona,b,c,d,andesamples.Eachsamplescrackareavalueare158.13 mm2; 127.43 mm2; 196.81 mm2; 73.97 mm2; dan 18.80 mm2. Others RNDT was using X-ray voltage at 70 kV on samples a, b, c, d, and e. Each samples crack area value are 220.62 mm2; 1,711.57 mm2; 209.33 mm2; 76.50 mm2; dan 11.18 mm2. In conlusion, the crack area values obtained can be used as RNDT.

Sign in / Sign up

Export Citation Format

Share Document