Navigation Links
Radioactivity: Discover the lowest amounts with new methods
Date:9/16/2008

Detecting ever lower amounts of ionising radiation with ever better methods sci-entists have had this goal since the start of the nuclear age. In addition to natural radiation, mankind is exposed to a multitude of other sources of radiation which result from the military and technical use of radioactive substances. To protect health, but also for technical and medical applications, it is necessary to determine even the smallest amounts of radionuclides with high precision. On the invitation of the Physikalisch-Technische Bundesanstalt (PTB), scientists from 27 countries are meeting from 22nd to 26th September 2008 to exchange ideas about new measurement and analytical techniques and possible ways of applying them: at the "5th International Conference on Radionuclide Metrology Low-Level Radioactivity Measurement Techniques".

PTB scientists contribute to this international exchange with three dissertations:

1. The German thoron progeny chamber Concept and Application

Abstract: For the measurement of the thoron progenies, a reference field has been estab-lished within the scope of a project funded by the Federal Ministry of Environment, Nature Protection Reactor Safety. This field consists of an air-conditioned walk-in testing chamber in which the environmental parameters temperature, air humidity and aerosol content can be adjusted and controlled. Analogue to the radon reference chamber, Carnauba wax aerosol is used as model aerosol. The activity concentrations of thoron and of the thoron progenies shall be adjusted by means of several open exhalation sources with 228Th which are distrib-uted in the chamber. Homogeneity of the environmental parameters and of the activity con-centrations of thoron and its progenies in the chamber is ensured by a special ventilation system. With this system, a compromise has been made between high circulation rates due to the low half-life of thoron, on the one hand, and low flow velocities due t
'/>"/>

Contact: Dr. Dirk Arnold
dirk.arnold@ptb.de
Physikalisch-Technische Bundesanstalt (PTB)
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Mass. Generals Warren Triennial Prize honors discoverers of microRNAs
2. How are herbicides discovered?
3. TGen and Washington University researchers discover new approach to treating endometrial cancer
4. Key discovered to cold tolerance in corn
5. Researchers discover atomic bomb effect results in adult-onset thyroid cancer
6. Unexpected large monkey population discovered
7. Munich researchers discover key allergy gene
8. Johns Hopkins scientists discover what drives the development of a fatal form of malaria
9. Mount Sinai researchers discover technology that silences genes
10. MSUs discovery of plant protein holds promise for biofuel production
11. Smithsonian scientists discover new bird species
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/29/2014)... UC Davis have made some surprising discoveries about ... simian immunodeficiency virus (SIV), the team found that ... are early responders to viral invasion and are ... cytokine called interleukin-1 beta (IL-1β). , Though ... breakdown of the gut epithelium that provides a ...
(Date:8/29/2014)... has been known about what genetic changes transform wild ... one of whom is a University of Montana assistant ... controlling the development of the brain and the nervous ... was published Aug. 28 in Science and ... at http://www.sciencemag.org/ ., The domestication of animals and ...
(Date:8/29/2014)... understand how the repeated climatic shifts over the ... of genetic diversity, a team of researchers led ... Ana Carnaval developed a new biodiversity metric called ... which the genetic variation within species is restricted ... professor of biology, and 14 other researchers from ...
Breaking Biology News(10 mins):The early cost of HIV 2New research reveals how wild rabbits were genetically transformed into tame rabbits 2New research reveals how wild rabbits were genetically transformed into tame rabbits 3CCNY team defines new biodiversity metric 2
... that it is launching a new journal, the Journal ... be published bimonthly, and will focus on the advances ... and engineering. The first issue will appear in late ... Engineering will cover the fields of natural gas exploration, ...
... Johns Hopkins and Ohio State University have found that the ... severity of colon cancer in a mouse model. Publishing in ... how trisomy 21, or Down syndrome in humans, can repress ... 50-year-old debate about whether people with Down syndrome develop cancer ...
... you really are is a fairly harmless, socially accepted habit ... matter of life and death for caterpillars of large blue ... one of the ants own larvae. In a publication in ... for Social Evolution (CSE) at the University of Copenhagen show ...
Cached Biology News:Elsevier launches new journal: Journal of Natural Gas Science and Engineering 2Gene dose affects tumor growth 2Smell-wars between butterflies and ants 2
(Date:8/29/2014)... 2014  Pfenex Inc. (NYSE MKT: PFNX), a ... high-value and difficult to manufacture proteins including biosimilar ... financial results for the second quarter ended June ... of our initial public offering, we have the ... candidates, derived from our proprietary protein expression platform," ...
(Date:8/29/2014)... Pittcon is pleased to announce that the 2015 ... Scientific, have organized a session on nanotechnology for presentation ... Asia’s largest analytical and scientific instruments show, will be ... , The four speakers in this U.S. symposium, “Thinking ... Single Cells” will present their use of nanotechnology to ...
(Date:8/29/2014)... Due to a misstatement posted by the ... Cell Technology Center, LLC ( ASCTC ) was reported as ... that might benefit ALS patients. Because of ASCTC's exclusive ... technologies and therapeutic applications, FRC listed ASCTC as one of ... who wish not to support research that requires the death ...
(Date:8/28/2014)... August 28, 2014 Best Sanitizers, Inc., ... the food processing industry, is asking industry professionals to ... comparison of the E2 soap they’re currently using to ... Soap . Hand hygiene is critical to fighting ... processing environment. Six key criteria are identified to evaluate ...
Breaking Biology Technology:Pfenex Reports Second Quarter 2014 Results and Provides Business Update 2Pfenex Reports Second Quarter 2014 Results and Provides Business Update 3Pfenex Reports Second Quarter 2014 Results and Provides Business Update 4Pfenex Reports Second Quarter 2014 Results and Provides Business Update 5Pfenex Reports Second Quarter 2014 Results and Provides Business Update 6Pfenex Reports Second Quarter 2014 Results and Provides Business Update 7Pfenex Reports Second Quarter 2014 Results and Provides Business Update 8Fifth Annual U.S. Symposium at JASIS Organized by Pittcon’s Program Chairman Hub MacDonald 2The Adult Stem Cell Technology Center, LLC Declines ALS Ice Bucket Challenge Donors Wishing to Support Ethical Research for New Stem Cell Therapies 2The Adult Stem Cell Technology Center, LLC Declines ALS Ice Bucket Challenge Donors Wishing to Support Ethical Research for New Stem Cell Therapies 3Best Sanitizers, Inc. Asks Food Industry Professionals: With Fall Harvest On the Way, Is Your E2 Hand Soap Up to the Task? 2
... funded by Cadila Pharmaceuticals and Revenues from Sales ... in Novavax , ROCKVILLE, Md., March 31 ... today it has formed a joint venture with ... and market vaccines, pharmaceuticals and diagnostic products in ...
... more to attend global event for health care leaders in ... , D.C. ... Congress, April 14-16, Washington, D.C., is pleased to announce several ... with top health leaders from the United States and colleagues ...
... Calif., March 31 Based on its recent ... & Sullivan recognizes Carl Zeiss Meditec with the ... Award for its optical coherence tomography (OCT) technology ... pioneer of OCT technology and has launched clinical ...
Cached Biology Technology:Novavax Announces New Capital Infusion Through a Strategic Alliance with Cadila Pharmaceuticals of India 2Novavax Announces New Capital Infusion Through a Strategic Alliance with Cadila Pharmaceuticals of India 3Novavax Announces New Capital Infusion Through a Strategic Alliance with Cadila Pharmaceuticals of India 4Novavax Announces New Capital Infusion Through a Strategic Alliance with Cadila Pharmaceuticals of India 5Novavax Announces New Capital Infusion Through a Strategic Alliance with Cadila Pharmaceuticals of India 6Health Care Innovations and Opportunities Attract Attendees from 40 Countries and Delegations from 12 to 6th Annual World Health Care Congress 2Frost & Sullivan Lauds Carl Zeiss Meditec for Dominating the OCT Market for Ophthalmic Applications 2Frost & Sullivan Lauds Carl Zeiss Meditec for Dominating the OCT Market for Ophthalmic Applications 3Frost & Sullivan Lauds Carl Zeiss Meditec for Dominating the OCT Market for Ophthalmic Applications 4
anti-JNK2 Immunogen: Recombinant human JNK2 protein Accession Number: NM_002752 Quality Assurance: Routinely evaluated by immunoblot. Molecular Weight: 46 and/or 54 kDa Available ...
... Synthetic peptide derived from the internal region ... Specific for the internal region of ... identifies the target band at ~590 kDa. ... secreted media from primary tracheobranchial epithelial cultures ...
Gloves are 9.25 long, latex, powder free, smooth and ambidextrous....
Lipid-rich bovine serum albumin for cell culture. It is chromatographically purified and has an IgG content 1.0% (w/w)....
Biology Products: