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The scientific exchange between PTB and its Argentinian partner institute, Instituto Nacional de Tecnologia Industriel (INTI), is growing closer.

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As part of the Federal Government's “Nanotechnologies Action Plan 2020”, the federal authorities responsible for human and environmental safety have extended their joint research strategy.

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Awards

Roman SchwartzRoman Schwartz,
Vice-President of PTB, was confirmed in his office as the “CIML First Vice-President” (CIML: International Committee of Legal Metrology) and reelected for another six years at the 51st CIML session in Strasbourg.

Raya Roshana GallasRaya Roshana Gallas
This staff member of Department 6.2, “Dosimetry for Radiation Therapy and X-ray Diagnostic Radiology”, was awarded the Otto Haxel Prize of Heidelberg University for her excellent master's paper entitled “A Novel Method for Assessment of Beam-Tissue Interactions in Helium Ion Radiotherapy”.

Ludwig BüermannLudwig Büermann
This staff member of Department 6.2, “Dosimetry for Radiation Therapy and X-ray Diagnostic Radiology”, received the 2016 IEC 1906 Award. The IEC award is an appreciation of his expert knowledge and of his particular commitment to international standardization.

 

 

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UHV instrumentation for combined X-ray fluorescence and photoelectron spectroscopy on surfaces of silicon spheres

In order to become independent of the international prototype of the kilogram kept in Paris, the definition of the SI unit of mass, the kilogram, has to be revised. For this purpose, the number of silicon atoms in a monocrystalline silicon sphere has been determined at PTB within the scope of the Avogadro proj´ect. It is therefore necessary to measure the surface properties with the highest possible metrological accuracy. To this end, PTB has set up ultra-high vacuum (UHV) instrumentation with combined X-ray fluorescence spectroscopy and photoelectron spectroscopy.

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Halbleiter-Einzelelektronen-Stromquelle

The universe of physics is experiencing great changes: by 2018, scientists want to place all physical base units on solid, unchangeable foundation in the form of fundamental constants. The units "meter" and "second" were well ahead of schedule; now the kelvin, the kilogram, the mole and the ampere are next in line. The research activities of the Physikalisch-Technische Bundesanstalt (PTB) are contributing to this project. Scientists from PTB have now succeeded in measuring the extremely small currents of a single-electron pump with unprecedented accuracy. This is a milestone towards the revision of the International System of Units (SI).

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Eine Milliarde Euro investiert die Bundesregierung in ein Maßnahmenpaket zur Beschleunigung des Marktes für Elektromobilität in Deutschland. Der Aufbau der notwendigen Ladeinfrastruktur für elektrisch betriebene Fahrzeuge ist ein wichtiger Baustein und soll von 2017 bis 2020 mit insgesamt 300 Millionen Euro gefördert werden. Eine breite Akzeptanz der Ladeinfrastruktur ist für den Erfolg der E-Mobilität wichtig. Richtiges Abrechnen auf Grundlage richtiger Messwerte ist dabei ein wichtiger Aspekt für alle – für diejenigen, die Ladesäulen verkaufen, betreiben oder nutzen sowie für diejenigen, die Strom oder Elektrofahrzeuge verkaufen. 

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Each edition of PTB News now includes a film, which will be shown online. These films will provide you with background information and a direct look at the work done in our laboratories. We began with “World record for two optical clocks” (2.2016). For this edition (3.2016), we have prepared a film for you on the topic of “How much current does a solar cell provide?” Each film can be found in the same location as the accompanying edition of PTB News: Opens internal link in current windowwww.ptb.de > Opens internal link in current windowPublications > Opens internal link in current windowPTB News.

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Richtfest des Forschungszentrums LENA

Nanotechnologie umfasst ein breites Spektrum zukunftsweisender Querschnittstechnologien mit Werkstoffen, Bauteilen und Systemen, deren Funktion auf den besonderen Eigenschaften ihrer nanoskaligen, also millionstel Millimeter kleinen Abmessungen beruht. Ein Schlüssel zu ihrer Weiterentwicklung ist eine präzise Messtechnik, um Nanosysteme zu beschreiben, zu verstehen und herzustellen. Zur Stärkung des Forschungsschwerpunkts Nanometrologie baut das Land Niedersachsen für die TU Braunschweig ein neues Gebäude für das Forschungs-zentrum LENA. Bund und Land investieren gemeinsam über 33 Millionen Euro in den Forschungsbau. 

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Glasfaser-Uhrenvergleich

In the past few years, optical atomic clocks have made spectacular progress, becoming 100 times more precise than the best caesium clocks. So far, their precision has been available only locally, since frequency transfer via satellite cannot provide sufficient resolution. This has recently changed thanks to a new direct optical connection between France and Germany, established by joint work of Physikalisch-Technische Bundesanstalt (PTB) in Braunschweig, Systèmes de Référence Temps-Espace (LNE-SYRTE) in Paris, and Laboratoire de Physique des Lasers (LPL) in Villetaneuse. High-precision optical frequencies can now "travel" through a 1400 km optical fibre link between LNE-SYRTE and PTB, where the most precise optical clocks in Europe are operated. The first comparison between the French and German optical strontium clocks confirms the high expectations placed in the connection. It represents the first frequency comparison of its kind...

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Die argentinischen Außenministerin Susana Malcorra und PTB-Präsident Joachim Ullrich nach der Unterzeichnung des Memorandum of Understanding am 5.7.2016 in Berlin.

Joachim Ullrich, Präsident der Physikalisch-Technischen Bundesanstalt (PTB), freut sich, seine Unterschrift unter die Absichtserklärung für einen noch engeren wissenschaftlichen Austausch mit Argentinien setzen zu können. „In den vergangenen 50 Jahren der technischen Zusammenarbeit sind unsere argentinischen Kollegen zu starken Forschungspartnern herangewachsen“, betont Ullrich. „Wir wollen auch in Zukunft unsere Expertise in allen Fragen rund ums genaue Messen zusammenbringen.“ Die feierliche Unterzeichnung eines Memorandum of Understanding (MoU) fand am Dienstag, den 5. Juli 2016, im Rahmen eines Staatsbesuchs des argentinischen Präsidenten Mauricio Macri im Berliner Hotel Regent statt.

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