On the Applicability of Camera Lens Protectors in Emergency Luminescence Dosimetry

Renata Majgier; Kordian Chamerski; Arkadiusz Mandowski

doi:10.3390/ma15010193

On the Applicability of Camera Lens Protectors in Emergency Luminescence Dosimetry

Materials ◽

10.3390/ma15010193 ◽

2021 ◽

Vol 15 (1) ◽

pp. 193

Author(s):

Renata Majgier ◽

Kordian Chamerski ◽

Arkadiusz Mandowski

Keyword(s):

Recovery Process ◽

Dose Dependence ◽

Camera Lens ◽

Dose Determination ◽

Minimum Detectable Dose ◽

Luminescence Dosimetry ◽

Good Measurement ◽

Potential Use ◽

Measurement Repeatability ◽

Undesirable Feature

In this work, the optically stimulated luminescence (OSL) properties of camera lens protectors and their potential use in emergency dosimetry were investigated. Camera lens protectors can be attached to mobile phones, which are commonly carried by individuals and may be useful in estimating an emergency dose. The presented results confirm the great potential of this type of glass material for dose determination. The glass protectors exhibit advantageous properties, such as linear dose dependence in the range of at least 0.6–10 Gy, minimum detectable dose at the level of tens of mGy, and good measurement repeatability for samples of the same type. Significant fading during the first day after exposure is an undesirable feature of tested glass. Nevertheless, the application of the correction for fading shows promising results in the dose recovery process.

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QUICK-MOUNT SOIL CORE SAMPLER FOR MEASURING BULK DENSITY

Canadian Journal of Soil Science ◽

10.4141/cjss90-013 ◽

1990 ◽

Vol 70 (1) ◽

pp. 115-118 ◽

Cited By ~ 10

Author(s):

S. TESSIER ◽

H. STEPPUHN

Keyword(s):

Bulk Density ◽

Core Sample ◽

Soil Samples ◽

Water Retention Curve ◽

Soil Core ◽

Undisturbed Soil ◽

Retention Curve ◽

Core Sampler ◽

Good Measurement ◽

Measurement Repeatability

The design for a sleeve-type, quick-mount soil core sampler for bulk density and soil water content determination and for collection of undisturbed soil samples is described and its performance discussed. This core sampler has been used to collect undisturbed soil core samples 47.5 mm in diameter and 300 mm long in tillage and seeding studies. Less than 2 min is required to retrieve, seal and store each soil core sample. The soil samples are contained in 50.8-mm-diameter aluminum liners which are easily sealed with plastic caps and stored for later laboratory analysis. This sampler resulted in very good measurement repeatability and provided subsamples suitable for water retention curve determinations. Key words: Soil sampler, coring device, bulk density, soil moisture, undisturbed cores

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The growth of mica polytypes as studied by conventional and high-resolution TEM

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100074690 ◽

1983 ◽

Vol 41 ◽

pp. 174-177

Author(s):

A. Baronnet ◽

M. Amouric

Keyword(s):

Water Pressure ◽

Point Of View ◽

Temperature Fields ◽

Natural Occurrence ◽

Growth Mechanisms ◽

Long Period ◽

High Resolution Tem ◽

Layer Stacking ◽

Experimental Works ◽

Potential Use

The origin of mica polytypes has long been a challenging problem for crystal- lographers, mineralogists and petrologists. From the petrological point of view, interest in this field arose from the potential use of layer stacking data to furnish further informations about equilibrium and/or kinetic conditions prevailing during the crystallization of the widespread mica-bearing rocks. From the compilation of previous experimental works dealing with the occurrence domains of the various mica "polymorphs" (1Mr, 1M, 2M1, 2M2 and 3T) within water-pressure vs temperature fields, it became clear that most of these modifications should be considered as metastable for a fixed mica species. Furthermore, the natural occurrence of long-period (or complex) polytypes could not be accounted for by phase considerations. This highlighted the need of a more detailed kinetic approach of the problem and, in particular, of the role growth mechanisms of basal faces could play in this crystallographic phenomenon.

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An atomic-resolution microscope study of Al contracts on GaAs

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100145005 ◽

1986 ◽

Vol 44 ◽

pp. 726-727

Author(s):

Z. Liliental-Weber ◽

C. Nelson ◽

R. Ludeke ◽

R. Gronsky ◽

J. Washburn

Keyword(s):

High Speed ◽

Schottky Contacts ◽

Detailed Knowledge ◽

The Past ◽

Semiconductor Interfaces ◽

Deposited Metal ◽

Microwave Applications ◽

Free Interfaces ◽

Potential Use

The properties of metal/semiconductor interfaces have received considerable attention over the past few years, and the Al/GaAs system is of special interest because of its potential use in high-speed logic integrated optics, and microwave applications. For such materials a detailed knowledge of the geometric and electronic structure of the interface is fundamental to an understanding of the electrical properties of the contact. It is well known that the properties of Schottky contacts are established within a few atomic layers of the deposited metal. Therefore surface contamination can play a significant role. A method for fabricating contamination-free interfaces is absolutely necessary for reproducible properties, and molecularbeam epitaxy (MBE) offers such advantages for in-situ metal deposition under UHV conditions

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Electron Beam-Induced Mass Loss in Freeze-Dried Tissue and Protein Samples

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s042482010011917x ◽

1985 ◽

Vol 43 ◽

pp. 470-471

Author(s):

M.E. Cantino ◽

M.K. Goddard ◽

L.E. Wilkinson ◽

D.E. Johnson

Keyword(s):

Electron Beam ◽

Salivary Gland ◽

Mass Loss ◽

Counting Rate ◽

Dose Dependence ◽

X Ray ◽

Large Samples ◽

Freeze Dried ◽

Muscle Homogenate ◽

Large Muscle

Quantification in biological x-ray microanalysis depends on accurate evaluation of mass loss. Although several studies have addressed the problem of electron beam induced mass loss from organic samples (eg., 1,2). uncertainty persists as to the dose dependence, the extent of loss, the elemental constituents affected, and the variation in loss for different materials and tissues. in the work described here, we used x-ray counting rate changes to measure mass loss in albumin (used as a quantification standard), salivary gland, and muscle.In order to measure mass loss at low doses (10-4 coul/cm2 ) large samples were needed. While freeze-dried salivary gland sections of the required dimensions were available, muscle sections of this size were difficult to obtain. To simulate large muscle sections, frog or rat muscle homogenate was injected between formvar films which were then stretched over slot grids and freeze-dried. Albumin samples were prepared by a similar procedure. using a solution of bovine serum albumin in water. Samples were irradiated in the STEM mode of a JEOL 100C.

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Servicing the Senior Swallow: A Family-Centered Private Practice Model of Service Delivery

Perspectives of the ASHA Special Interest Groups ◽

10.1044/2020_persp-20-00134 ◽

2020 ◽

pp. 1-4 ◽

Cited By ~ 1

Author(s):

Yvette M. McCoy

Keyword(s):

Older Adults ◽

Medical Model ◽

Recovery Process ◽

Swallowing Disorders ◽

Current Evidence ◽

Care Needs ◽

Skilled Nursing ◽

Person Centered Care ◽

Centered Care ◽

Traditional Medical Model

Purpose Person-centered care shifts the focus of treatment away from the traditional medical model and moves toward personal choice and autonomy for people receiving health services. Older adults remain a priority for person-centered care because they are more likely to have complex care needs than younger individuals. Even more specifically, the assessment and treatment of swallowing disorders are often thought of in terms of setting-specific (i.e., acute care, skilled nursing, home health, etc.), but the management of dysphagia in older adults should be considered as a continuum of care from the intensive care unit to the outpatient multidisciplinary clinic. In order to establish a framework for the management of swallowing in older adults, clinicians must work collaboratively with a multidisciplinary team using current evidence to guide clinical practice. Private practitioners must think critically not only about the interplay between the components of the evidence-based practice treatment triad but also about the broader impact of dysphagia on caregivers and families. The physical health and quality of life of both the caregiver and the person receiving care are interdependent. Conclusion Effective treatment includes consideration of not only the patient but also others, as caregivers play an important role in the recovery process of the patient with swallowing disorders.

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