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SAES ZAO® PUMPS SERIES: A Novel Approach in High Vacuum Systems

Introduction

Getter materials are reactive metals able to chemically sorb active gases in a vacuum environment. They can be classified in two big families: evaporable and non-evaporable getters. The former have been extensively adopted in many industrial applications, like CRTs and lamps, while the latter have drastically changed the way of improving the vacuum levels achievable in vacuum system from medium to extreme high vacuum.

SAES Getters is the repository of the long-standing advanced technology nowadays available on getter materials. In particular in Ultra High Vacuum (UHV) systems compact NEG-based pumps with high pumping speed for hydrogen and active gases have been developed. The list of applications in which SAES NEG Pumps are employed is continuously increasing for the wide range of products offered and their flexibility in adapting to several UHV applications, like Particle Accelerators, Cold Atomic Trap or Surface Science systems.

Da |maggio 9th, 2016|Vacuum Technology|Commenti disabilitati su SAES ZAO® PUMPS SERIES: A Novel Approach in High Vacuum Systems|

e-Vision 2

Stability, Accuracy And Speed A Cost Effective Rga For General Purpose Vacuum Analysis

Residual Gas Analysis (RGA) is a routine workhorse tool for any vacuum engineer. The ability to quickly determine the individual gas partial pressures within a vacuum chamber provides a wealth of diagnostic information to help troubleshoot real and virtual leaks, identify components with abnormal out-gassing, identify contaminants and confirm when cryo-pumping and getter systems are close to needing regeneration. The e-Vision 2 RGA is one of a new range of products, from MKS, designed to meet all the traditional requirements for an RGA sensor but with data collection at speeds unachievable with previous generation technologies. The e-Vision 2 RGA is designed to provide maximum value for money. The e-Vision 2 is designed to collect data at millisecond speeds per data point even when measuring data over the full dynamic range of the RGA. This capability has been achieved without sacrificing any of the necessary robustness, reliability and support which have served to make MKS the world leader in RGA products over the widest range of applications — from semiconductor tools or particle accelerators to general industrial applications.

Da |ottobre 28th, 2015|Vacuum Technology|Commenti disabilitati su e-Vision 2|

Elucidation of Hydride Interaction Mechanisms with Carbon Nanostructures and the Formation of Novel Nanocomposites

Our investigation of the interaction of metal hydrides and complex metal hydrides with carbon nanostructures (C60, CNT’s, etc.) has demonstrated that these composites can reversibly interact with hydrogen. This interaction leads to new materials in which the desorption/absorption of hydrogen occurs at temperatures and pressures well below the individual precursor components. In particular we focused on the role that C60 played in the reversible hydrogenation of NaAlH4, LiAlH4, and LiBH4. Through a series of spectroscopic analysis of these materials, we determined that a reaction occurs between the complex metal hydride and C60 to produce a metal-doped fullerene. This finding suggested that simple metal hydrides (i.e. LiH) can be used to make large quantities of alkali-doped fullerenes via solvent-assisted mixing and annealing. In the Mx-C60-Hy materials, the active hydrogen storage material resembles a metal-doped fullerane (hydrogenated fullerene).

Da |ottobre 28th, 2015|Materials, Nanotechnology, Vacuum Technology|Commenti disabilitati su Elucidation of Hydride Interaction Mechanisms with Carbon Nanostructures and the Formation of Novel Nanocomposites|

EnviroSafe

Working Environment Monitoring System

Hazardous area monitoring

EnviroSafe Mass Spectrometer systems from ESS detect, track, and monitor leakages and process issues of Hazardous substances in real time, and provide a highly cost effective solution to a multiple analyser approach.

Specifically designed for Hazardous Species gas phase monitoring, these systems offer unparalleled performance in terms of sensitivity, speed, response time and report generation capabilities. Their capability to monitor virtually any hazardous species makes them the system of choice for plant applications, and ensures compliance with any regulations that may be in place.

5PASCAL-EnviroSafe-Brochure-vacuum-img

Housed within a compact, space saving cabinet gives the user flexibility of the location of the system, and a fully ATEX Zone 1 version is available should user wish to locate the system within the Hazardous area itself.

Up to 64 Individual sample points can be monitored with EnviroSafe, often meaning that an entire plant can be monitored with just one system. All sample points are continuously pumped, ensuring that ‘fresh’ sample arrives at the Mass Spectrometer when that sample stream is selected. The measurement time on individual sample points is user selectable, and can be measured in any desired order. With full, automated unattended operation and integration into the plant control system, together with automated report generation, these systems a suited to many Hazardous area monitoring applications, including:

  •   Vinyl Chloride / DCM Manufacture and pilot plant
  •   Urea / Ammonia plant
  •   Ambient Solvent monitoring (eg Toluene, Styrene, Benzene, etc.)
  •   Chlorinated compounds
  •   Mercaptan and Amines
  •   Gas scrubber monitoring
  •   Enclosed / confined workplaces
  •   CorrosivesReal-time monitoring of up to 64 individual sample species with full alarm generation, the complete process is measured, ensuring that no events are missed. With true on-line monitoring capabilities, EnviroSafe offers a faster, more reliable analysis method than traditional techniques.

 

leggi l’articolo completo in pdf:

5PASCAL – EnviroSafe Draft Brochure – vacuum

Da |ottobre 28th, 2015|Vacuum Technology|Commenti disabilitati su EnviroSafe|

Corso di Spettrometria di Massa – Principi di Utilizzo e Applicazioni

Torino, 24-25 Novembre 2015  

ORGANIZZATO DA :        AIV-Associazione Italiana di Scienza e Tecnologia 

PRESSO:                SAES GETTERS S.p.A  Viale Italia, 77 – Lainate MI – Italy – T +39 02 931781

Da |settembre 17th, 2015|Corsi|Commenti disabilitati su Corso di Spettrometria di Massa – Principi di Utilizzo e Applicazioni|

Lanciato il satellite per la Difesa SICRAL 2

E’ stato lanciato dalla base europea di Kourou, nella Guyana Francese, il satellite per le telecomunicazioni della Difesa Sicral 2. A portarlo in orbita un Ariane 5 Eca, a bordo del quale è stato integrato anche il satellite norvegese Thor 7, della Telenor, per il servizio televisivo per l’ Europa centrale e comunicazioni a banda larga per il settore marittimo. Inizialmente previsto per il 14 aprile, il lancio era stato rinviato due volte per problemi tecnici al lanciatore.

art4-SICRAL2-pfeiffer

Nato dalla cooperazione fra i ministeri della Difesa italiano e francese, Sicral 2 e’ il terzo satellite del sistema per le comunicazioni Sicral (Sistema Italiano per Comunicazioni Riservate e Allarmi), che assicura alla Difesa comunicazioni strategiche e tattiche sia sul territorio italiano sia all’estero, garantendo l’interoperabilità tra le reti della Difesa, della sicurezza pubblica, dell’emergenza civile e della gestione e controllo delle infrastrutture strategiche. Il programma è nato dalla cooperazione fra il ministero della Difesa italiano (che partecipa per il 62%) e la Direzione Generale degli Armamenti francese (38%), con l’obiettivo di potenziare le telecomunicazioni satellitari dei due Paesi.

Da |settembre 16th, 2015|Vacuum Technology|Commenti disabilitati su Lanciato il satellite per la Difesa SICRAL 2|

The New Dimension in Vacuum Technology

Innovative Series of Turbomolecular Pumps For Analytical Technology

Modern analytical instrumentation requires highly developed components. Especially in mass spectrometers these components need to be precisely matched to each other. Thanks to new turbomolecular pumps, analysis throughput can be increased significantly.

Ever shorter analysis cycles with increased sensitivity, endurance operation of the instrumentation as well as minimum vibration levels and noise – these are the parameters required by the users of mass spectrometric instrumentation today. Oerlikon Leybold Vacuum has faced these performance challenges and designed the innovative series of turbomolecular pumps TURBOVAC i – pumps tailor-made for the analytical instrumentation market.

Da |settembre 16th, 2015|Vacuum Technology|Commenti disabilitati su The New Dimension in Vacuum Technology|

Silicone Oil Leakage – Detection in Freeze Dryer Systems

THE PROBLEM

Lyophilization, or freeze drying as it is more commonly known, is an important process used in the stabilization of delicate pharmaceutical products. This process requires that equipment be subjected to wide swings in both temperature and pressure. Over time these variations can lead to wear in the equipment that allows the leakage of heat transfer oils into the process chamber and subsequent contamination of the product undergoing lyophilization. Detection of these fluids is therefore a critical aspect of contamination control in the process.

BACKGROUND

Pharmaceuticals, in general, are relatively delicate chemicals that are at risk of decomposition under harsh processing and storage conditions. Furthermore, the thermal and chemical lability of many pharmaceuticals makes their stabilization for long term storage problematic.

For the above reasons, freeze drying (lyophilization) of pharmaceuticals has been widely adopted as a preferred stabilization process in pharmaceutical manufacturing. Lyophilization is, by far, the gentlest route for the conversion of the liquid formulations that are the typical end product

Da |settembre 16th, 2015|Vacuum Technology|Commenti disabilitati su Silicone Oil Leakage – Detection in Freeze Dryer Systems|

De-Convolution of Complex Residual Gas Spectra at JET

INTRODUCTION

At JET, fusion fuel most commonly used in the tokamak is deuterium. Purity of the fuel is vital to ensure the data obtained from plasma pulses is useful, and that pulse recipe repeatability is not compromised.

Our primary goal was to determine the purity of the fuelling gas, deuterium, and confirm that we did not have any contamination from helium (He). Analysis using our quadrupole Residual Gas Analysers (qRGA) in the conventional way was not possible due to the overlapping masses of the two species at 4 atomic mass units (amu).

Here, we present and demonstrate the approach we used to solve this problem; a complimentary technique, Threshold Ionization Mass Spectrometry (TIMS), operating the qRGA mass spectrometer in a mode allowing control over the energy of the electrons emitted within the ionization source.

Recognising the potential to identify more complex compounds which have brought uncertainty when attempting to interpret data from the torus primary vacuum vessel we have applied this technique across a broad range of gases that exhibit overlapping masses in the laboratory.

[…]

 

Articolo completo: De-Convolution of Complex Residual Gas Spectra at JET.pdf

 

T. Coyne1, S. Davies2, N. Balshaw1, A. Miller1, C. Robertson2, C. Whitehead1 and EFDA JET contributors*
1EURATOM/UKAEA Fusion Association, Culham Science Centre, Oxon. OX14 3DB. UK
2Plasma & Gas Analysis Division, Hiden Analytical Ltd. 420 Europa Boulevard, Warrington. UK
*See annex of F Romanelli et al, “Overview of JET Results”, (Proc. 22nd IAEA Fusion Energy Conference, Geneva, Switzerland (2008))
Per maggiori informazioni
Aldo Conti
PRA-MA
contialdo@pra-ma.com

 

Da |settembre 16th, 2015|Vacuum Technology|Commenti disabilitati su De-Convolution of Complex Residual Gas Spectra at JET|

New family of high voltage feedthroughs

vaqtec-1-pin-50kVVaqtec introduces two new series of high voltage connector solutions that are made from using alumina ceramic to metal sealing technology. These high voltage connectors feature a small, compact design with a weldable diameter that ranges from 9.5 mm to 31.6 mm and are available for voltages up to 50 kV. The connectors are rated for currents from 3 to 10 amps and are suited for high voltage equipment manufacturers including semiconductor ion implants, particle accelerators and x-ray. Both series of high voltage connectors are suitable for high temperatures, UHV and pressure and provide an ideal solution for high voltage applications which maximize ratings, safety and the connection interface.

vaqtec srl

Headquarter:

Corso Grosseto 437 – 10151 Torino (TO) – Italy

Tel: +39.011.0968307 – Fax: +39.011.0968393

info@vaqtec.com

www.vaqtec.com

Da |aprile 9th, 2015|Vacuum Technology|Commenti disabilitati su New family of high voltage feedthroughs|