rhenium filament type

Rhenium – Union City Filament Corp.

Pure rhenium is an important material for many scientific instrument filaments, as well as other electron and ion source filaments. Most rhenium naturally occurs in porphyry copper deposits. Hydrogen reduction is used to convert ammonium perrhenate to pure rhenium …

Rhenium Alloys: MOCVD Heater Filaments

Ultra-High Purity Rhenium; Larger, More Stable Microstructure; Patent Pending – Zero Contamination Risk Surface Treatment . Rhenium Filament Discounts and Trade-Ins. Rhenium Alloys offers discounts on …

Filament Repair Guide

Repair pin type rhenium filament ITQ/DSQ II: Thermo: 40005-60140R: Repair rhenium wire filament 4500/4600/TSQ/SSQ: Thermo: 70001-60287R: Repair pin type rhenium filament TSQ 7000, GCQ: Thermo: 9000308R: Repair Filament f. BreathMat / AP 2003: Thermo: 94011-62024R: Repair rhenium double filament for ITD, ITS, Magnum, Saturn:

It's Elemental

Today, rhenium is obtained as a byproduct of refining molybdenum and copper. Rhenium is used in flash lamps for photography and for filaments in mass spectrographs and ion gages, but is most frequently used as an alloying agent in tungsten and molybdenum and as a catalyst for performing certain reactions to a type of hydrocarbon known as an olefin.

Ambient aging of rhenium filaments used in thermal …

1. Introduction. Rhenium has been used widely as an ionization surface in thermal ionization mass spectrometry (TIMS) for isotopic analysis of plutonium [1, 2].Rhenium is the preferred material in these analyses for its high work function and melting point that is well above ionization temperatures for plutonium .Rhenium also has been …

Rhenium Alloys: Halogen Lamps and Infrared (IR) Lamp …

Our proprietary process ensures minimal filament sag, thereby ensuring long life. Rhenium Alloys' quartz halogen lamps convert approximately 90% input energy into IR radiant heat. In combination with reflectors, the infrared energy can be evenly distributed and optimum temperatures are achieved. ... Rhenium Alloys is a major supplier of ...

Radiation Physics Exam 3 Flashcards | Quizlet

Study with Quizlet and memorize flashcards containing terms like Variations in power distribution to the x-ray machine are corrected by the ___. A. line voltage compensator B. high voltage autotransformer C. full-wave rectifier D. automatic exposure control, The autotransformer has ___ winding(s). A. 1 B. 2 C. 3 D. 4, The ___ circuit provides …

Rhenium | Re (Element)

186 Re (with a half-life of 89 h) is a beta-emitting radioisotope that is used for cancer treatment, in particular for pain relief in bone cancer and in rheumatoid arthritis (see radiosynovectomy). It is produced from the stable isotope 185 Re via the 185 Re (n, γ) 186 Re reaction [188]. 186 Re is also used for radiolabeling of cancer ...

Rhenium filament oxidation: Effect on TIMS performance …

Reference Type. Journal Article Title. ... This communication presents findings on the effect of rhenium filament oxidation on thermal ionization mass spectrometry (TIMS) analyses of plutonium. Additionally, the roles of atmospheric humidity and carburization on the oxidation characteristics (i.e. aging) of rhenium filaments were studied ...

Rhenium filament oxidation: Effect on TIMS …

Rhenium filament oxidation: Effect on TIMS performance and the roles of carburization and humidity - ScienceDirect. Talanta. Volume 168, 1 June 2017, Pages …

Ambient aging of rhenium filaments used in thermal …

Rhenium strips were cut (0.762 × 0.030 × 15.9 mm) and spot welded onto posts for electrical heating. Each sample filament was heated incrementally from 0.5 Amps to 3.8 Amps in a degasser vacuum chamber at a pressure of around 10 −5 Pa. Filaments were held at 3.8 Amps for approximately 1 h before incrementally reducing filament …

Development of an electron impact ion source with high …

This type of filament has been widely used for several decades as cathode; in recent missions, the material has been altered to a rhenium tungsten alloy with a diameter of approximately 0.075–0.1 mm, which enables 100–200 μA emission with ∼1 W of power (Niemann et al., 2002; Balsiger ...

SISAlloy® (Yttria/Rhenium Alloy) MS Filaments

SIS introduces their new Yttria Rhenium alloy filaments for mass spectrometers. These filaments resulted from an intensive three year study and investigation at SIS on mass spectrometer filament life and performance. In these studies we have discovered that by alloying Rhenium with a small concentration of Yttria, the crystal structure of the ...

rhenium filament type

Historically, rhenium was alloyed to the tungsten in the filament of valve tubes to increase electron emission. What is the major reason this isn't used in x-ray tube filaments? A. To maximize the melting point of the filament. B. To increase the working life of the filament. C. To reduce the vaporization of the filament. D.

High-Temperature (HT) Molybdenum – Union City Filament …

About High-Temperature Molybdenum Wire. The high-temperature molybdenum we use here at Union City Filament is an alloy composed of, in parts per million by weight at the powder blending stage, about 40 to 180 ppm of aluminum, about 600 to 2500 ppm of silicon, about 50 to 150 ppm of potassium, and the remainder being molybdenum. The aluminum …

Rod and Wire

welding requirements. Our Rhenium Wire is 99.99% pure and has high strength and excellent ductility. Molybdenum-47.5%-Rhenium Wire is used in welding, electronics and wire mesh grids for the space industries. Tungsten-Rhenium Wire is a staple in thermocouples and electronics products. All Wire compositions are

Surface ionization — the rhenium V-type single …

Surface ionization — the rhenium V-type single filament. James A. McHugh. Add to Mendeley. https://doi/10.1016/0020-7381 (69)85010-2 Get rights and content. A study …

Rhenium Alloys: Molybdenum alloys, wire, tubing, rod, Moly LX tubing, LCAC

Rhenium Alloys is a leading manufacturer and supplier of a wide range of pure Molybdenum and Molybdenum alloy products including wire, ... as a filament material in electronic and electrical applications, and is used in nuclear energy applications and for missile and aircraft parts. ... Types of Flat Wire. Rolled (can be produced as thin as ...

Ambient aging of rhenium filaments used in …

Degassing is a common preparation technique for rhenium filaments used for thermal ionization mass spectrometric analysis of actinides, including plutonium. Although optimization studies regarding …

Surface ionization — the rhenium V-type single filament

The portion of the zone refined filament shown in Fig. 26 is a single-crystal surface > I mm in diameter. The total For a general review of surface phenomena see for example ref. 6. Int. J. .1fass Spectrom. Ion Phys., 3 (1969) 267-276 THE RHENIUM V-TYPE SINGLE FILAMENT 271 Fig- 2.

Mass Spectrometer Filaments | INNOVACERA

Structure of Filament: 1. Material: – Filaments are typically made from materials with high melting points and good electron-emitting properties. Common materials include tungsten and rhenium. – Tungsten is a popular choice due to its high melting point (3422°C), durability, and efficient electron emission properties. 2. Shape:

Anion-exchange polymer filament coating for ultra-trace …

Fig. 6 compares the dimpled filament design to that of the "boat" or V-shaped filament design and shows an SEM image of the dimpled region of a rhenium filament. Ion-exchange polymer spots with a thickness of 3.0–4.5 µm were formed on dimpled filaments, resulting in a 25% increase in the duration of ion production (increased from 3 …

Tungsten-rhenium filament lifetime variability in low …

[2,4,5,10,13,33] A tungsten-rhenium alloy (W 97 Re 3 ) is used in filament-type electron emitters for instruments that measure the neutral atmospheric composition and bulk-flow velocities in the ...

Rhenium Wire and Ribbon

Rhenium Wire and Ribbon is used to manufacture filaments for mass spectrometers and ion gauges as well as medical applications. ... Rhenium Wire and Ribbon - Filament and Heater Material. ... Platinum Rhenium Rhenium / Tungsten Rhodium / Platinum Silver Stainless Steel Type 302 & 304 Tantalum 90% Tantalum / 10% Tungsten Tungsten …

All 3D Filaments Types Explained: Detailed Guide

Moreover, carbon fiber is capable of transmitting very small amounts of electricity. In 3D , carbon fiber is mainly used as an additive in filaments that have a matrix made of more traditional filament materials. Most filaments use ABS, but there are also carbon fiber filaments made with PLA, Nylon, or PETG.

Rhenium

Uses. Rhenium is used as an additive to tungsten- and molybdenum-based alloys to give useful properties. These alloys are used for oven filaments and x-ray machines. It is also used as an electrical contact material as it resists wear and withstands arc corrosion.

Rhenium Exports | rhenium export price | Zauba

Average export price for rhenium was $945.44. Please use filters at the bottom of the page to view and select unit type. You may also use the analysis page to view month wise price information. Rhenium were exported to 8 countries. France was the largest importer of rhenium accounting for 47.17% of the total exports of rhenium.

Rhenium MOCVD Heater Filaments

Standard Re Heater Filaments by System Type. Rhenium. Fabrication Characteristics and Chemical Properties. Welding: Electron Beam welding and Laser joining methods …

Operating Parameters for TCD

Filament Reference Filament Output Signal Sample Filament Reference Filament Circuit representation of a Wheatstone bridge. When an ... HCl, HBr, HI), better than tungsten-rhenium.1 1 These nickel filaments impact the settings for the filament temperature and must be adjusted to effect an appropriate setting. Contact Varian or one of these ...

X-Ray Filaments – Union City Filament Corp.

For over forty years Union City Filament has been producing x-ray filaments for medical imaging devices in use by healthcare providers across the world. ... Typical material types include tungsten and 3% rhenium tungsten. X-Ray Filaments. UCF-SK001. Single Helix Filament with legs formed perpendicular to the coil axis. Most commonly used in X ...