New lines in the L-spectrum of neodymium-60

1977 ◽  
Vol 55 (17) ◽  
pp. 1521-1525 ◽  
Author(s):  
B. D. Shrivastava ◽  
R. K. Jain ◽  
V. S. Dubey
Keyword(s):  
Emission Spectrum ◽  
High Frequency ◽  
Quadrupole Transition ◽  
X Ray ◽  
The Third ◽  
Forbidden Transition

Using a focusing X-ray spectrograph of Cauchois type, three new lines at 1737.2, 2280.9, and 2354.9 X unit (Xu) have been observed in the L-emission spectrum of neodymium-60. The first two lines have been ascribed to the forbidden transition LI,NVI, VII and quadrupole transition LIIMIII (β17), respectively. The third one has been identified as the high frequency satellite Lαx. The existence of three quadrupole lines LINIV, V (γII), LIINVI, VII (γ8′), and LIIINVI, VII (β7′), only reported by Gokhale and Shukla, has been confirmed. The measurements of previously known diagram lines have been compared with those of earlier workers.

New Kα satellites of 30Zn following electron bombardment

1980 ◽  
Vol 58 (1) ◽  
pp. 94-97 ◽  
Author(s):  
Anand N. Nigam ◽  
Sushma Kothari
Keyword(s):  
Emission Spectrum ◽  
High Frequency ◽  
Electron Bombardment ◽  
Energy Calculations ◽  
X Ray ◽  
Muscovite Mica ◽  
Mica Crystal ◽  
First Time

The α-region of the electron excited K-X-ray emission spectrum of 30Zn, registered with the help of 20 and 40 cm curved muscovite mica crystal spectrographs of the transmission (Cauchois) type, has been microphotographically investigated.Four new high frequency satellites at 1415.2, 1411.4, 1401.7, and 1408.5 xu have been observed. On the basis of Relativistic Dirac–Fock (RDF) energy calculations for different initial and final configurations, the first three have been assigned to specific transitions (1s)−1(2p)−n → (2p)−n−1, with n = 3, 4, 5, respectively. However, the fourth one has been only tentatively assigned to the transition (1s)−1(2s)−1(2p)−4 → (2s)−1(2p)−5, since RDF calculations for these configurations were not available.The presence of two other satellites, reported earlier by Edamoto, has been confirmed. These have been observed at 1428.7 and 1424.4 xu and assigned for the first time to the transitions (1s)−1(2p)−n → (2p)−n−1 with n = 1 and 2, respectively.

The Microstructure of Steatite (Protoenstatite)

1985 ◽  
Vol 43 ◽  
pp. 236-237
Author(s):  
W. E. Lee ◽  
A. H. Heuer
Keyword(s):  
High Frequency ◽  
Glass Ceramics ◽  
Magnesium Silicate ◽  
Beam Current ◽  
Glassy Matrix ◽  
Angle Of Incidence ◽  
X Ray ◽  
Mechanical And Electrical Properties ◽  
Argon Ions ◽  
High Temperature Polymorph

IntroductionTraditional steatite ceramics, made by firing (vitrifying) hydrous magnesium silicate, have long been used as insulators for high frequency applications due to their excellent mechanical and electrical properties. Early x-ray and optical analysis of steatites showed that they were composed largely of protoenstatite (MgSiO3) in a glassy matrix. Recent studies of enstatite-containing glass ceramics have revived interest in the polymorphism of enstatite. Three polymorphs exist, two with orthorhombic and one with monoclinic symmetry (ortho, proto and clino enstatite, respectively). Steatite ceramics are of particular interest a they contain the normally unstable high-temperature polymorph, protoenstatite.Experimental3mm diameter discs cut from steatite rods (∼10” long and 0.5” dia.) were ground, polished, dimpled, and ion-thinned to electron transparency using 6KV Argon ions at a beam current of 1 x 10-3 A and a 12° angle of incidence. The discs were coated with carbon prior to TEM examination to minimize charging effects.

Der Einfluß der Inaktivitätsosteoporose auf die szintigraphische Darstellung knöcherner Verletzungen im Bereich des Handgelenks

1989 ◽  
Vol 28 (04) ◽  
pp. 124-128 ◽  
Author(s):  
J. Spitz ◽  
N. Clemenz ◽  
K. Tittel ◽  
H. Weigand
Keyword(s):  
Bone Scintigraphy ◽  
Plaster Cast ◽  
Scaphoid Bone ◽  
X Ray ◽  
The Third ◽  
High Level ◽  
Clinical Conditions ◽  
Rate Of Accumulation

In addition to its established oncological indications the sensitivity of bone scintigraphy is of steadily increasing significance in traumatology. Inactivity- induced osteoporosis plays a major role during the immobilization period in the plaster cast. In the region of the joints remodelling intensity may reach such a high level that the non-injured bone shows a higher rate of accumulation than the fracture. This process already begins between the third and fourth week of immobilization. The highest uptake is found after fracture of the scaphoid bone at the end of twelve weeks of immobilization. Control scintigraphies at intervals of several days are indicated to differentiate between various clinical conditions (pseudoarthrosis, activated osteoarthrosis, algodystrophy in case of doubtful x-ray results).

Аpplying of high-frequency monopolar diathermocoagulation in the treatment of chronic pulpitis

2020 ◽  
Vol 1 (12) ◽  
pp. 40-42
Author(s):  
F. Yu. Daurova ◽  
D. I. Tomaeva ◽  
S. V. Podkopaeva ◽  
Yu. A. Taptun
Keyword(s):  
Root Canal ◽  
High Frequency ◽  
Antibacterial Effect ◽  
Comparison Group ◽  
Poor Quality ◽  
Endodontic Treatment ◽  
Root Canals ◽  
The Third ◽  
Before And After

Relevance: the reason for the development of complications in endodontic treatment is poor-quality instrumental treatment root canals.Aims: a study of the animicrobial action and clinical efficacy of high-frequency monopolar diathermocoagulation in the treatment of chronic forms of pulpitis.Materials and methods: 102 patients with various chronic forms of pulpitis were divided into three groups of 34 patients each. In the first two groups, high-frequency monopolar diathermocoagulation was used in endodontic treatment in different modes. In the third group, endodontic treatment was carried out without the use of diathermocoagulation (comparison group). The root canal microflora in chronic pulpitis in vivo was studied twice-before and after diathermocoagulation.Results: it was established that high-frequency monopolar diathermocoagulation in the effect mode is 3, power is 4 (4.1 W) and effect is 4, power is 4 (5.4 W) with an exposure time of 3 seconds, it has a pronounced antibacterial effect on all presented pathogenic microflora obtained from the root canals of the teeth.

Relationship between Hydrogen-Bonding Motifs and the 1b1 Splitting in the X-ray Emission Spectrum of Liquid Water

2021 ◽  
Vol 12 (16) ◽  
pp. 3996-4002
Author(s):  
Vinícius Wilian D. Cruzeiro ◽  
Andrew Wildman ◽  
Xiaosong Li ◽  
Francesco Paesani
Keyword(s):  
Hydrogen Bonding ◽  
Emission Spectrum ◽  
Liquid Water ◽  
X Ray

scholarly journals The occurrence rate and clinical application of Osteo-line on the femur neck

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Mingchen Zou ◽  
Haotian Wu ◽  
Shuangquan Yao ◽  
Dong Ren ◽  
Song Liu ◽  
...  
Keyword(s):  
Clinical Application ◽  
Visual Inspection ◽  
Occurrence Rate ◽  
Control Group ◽  
Leg Length ◽  
X Ray ◽  
The Third ◽  
Femur Neck ◽  
Medical University ◽  
Experimental Group

Abstract Background This study was done to observe the incidence of Osteo-line on the femur neck and to explore the clinical application of Osteo-line in osteotomy. Methods Eighty-nine adult femur specimens were selected to observe the incidence of Osteo-line on the femur neck. From August 2015 to January 2019, a total of 278 patients who completed unilateral hip arthroplasty at the Third Hospital of Hebei Medical University were retrospectively included. Patients who accepted osteotomy via Osteo-line on the femur neck were defined as the experimental group (n = 139), and patients who accepted osteotomy via traditional method (The femoral distance 1.5 cm above the trochanter was retained for osteotomy by visual inspection.) were defined as the control group (n = 139). According to the postoperative pelvic X-ray, Photoshop was used to evaluate the leg length discrepancy (LLD) by the CFR-T-LT method. Results Among the 89 specimens, the incidence of anterior Osteo-line was 75.28%, and the incidence of posterior Osteo-line was 100%. According to the clinical application results, the incidence of anterior Osteo-line on the femur neck was 80%, and the incidence of posterior Osteo-line was 100%. The Osteo-line was clearer than those on the femoral specimens. Twenty-six cases had LLD greater than 1 cm (9.29%), including 2 cases in the experimental group and 24 cases in the control group. The average postoperative LLD in the experimental group (0.19 ± 0.38 mm) was significantly shorter than in the control group (0.54 ± 0.51 mm)(P = 0.005). Conclusion The incidence of Osteo-line on the femur neck was high, and patients who accepted osteotomy via Osteo-line on the femur neck can achieve shorter postoperative LLD than the control group.

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