News 2004 (in German only)

Fundamentals of metrology

New description of the dead layer of germanium detectors in gamma spectrometry

Standard measuring device for the activity of I-125 for use in the international BIPM 2004 comparison

NaI detector secondary measuring device for the manufacture of gaseous 222Rn activity standards

Precise dose determination with alanine for absorbed dose up to 5 Gy

New irradiation facility for 60Co gamma radiation

Determination of backscatter factors for beta dosimetry

EU project DOSMAX concluded

UDO relocates

Measurement of neutron-induced reaction cross sections for Cu and Zn samples and neutron energies between 8 MeV and 14 MeV

Cross sections for neutron-included fission of 235U, 238U, 209Bi and natPb in the energy range from 30 MeV to 200 MeV

Measurement of W-values for high-energy protons and 4He ions in air, nitrogen and argon

Neutron spectrometer for simultaneous measurement of DD and DT neutron at the JET/Culham

Development of a position-sensitive detector for inspection procedures with rapid neutrons

From nanodosimetry to radiation biology

Cooperation with the Weizmann Institute (Israel) in the field of nanodosimetry

New reference data for the measurement of electron-scatter cross-sections

Direct comparison of the free-air chambers of PTB and NPL

Metrology for economy

Electronic personal dosemeter for neutrons and photons: Industry transfer

Metrology for society

Placing of the order for the electron accelerator

Flight bag in continuous use

Test of dose measurement programs

Optimization of the micro-ion beam

Investigation of radiobiological phenomena in the low-dose range with the micro-ion beam

Determination of response functions with the aid of unfolding procedures

Purchase, specification and installation of a new 252Cf source

Investigation of devices for non-invasive measurement of tube voltages of diagnostic X-ray facilities

International affairs

Measurement of very low 60Co activities in the underground laboratories of the CELLAR Network

Participation in Euromet project 721 for the determination of photon emission probabilities of 65Zn

Automated dosimetry measuring system for international comparison measurements

Installation and characterization of a liquid scintillation detector

Characterization of the IRSN reference field CANEL/T400 by international comparison measurement

Additional information

Modernization of the sector and detector car control system

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