Per Roos

Per Roos

Seniorforsker

DTU NUTECH
Center for Nukleare Teknologier

Nutech Hevesy Laboratoriet
Nutech HEV Radioøkologi

Danmarks Tekniske Universitet

Frederiksborgvej 399

Bygning 204, rum S08

4000 Roskilde

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2018
 

Calibration of HPGe–HPGe coincidence spectrometer through performing standardisation of  125I activity by X-ray-gamma coincidence spectrometry using two HPGe detectors

Markovic, Nikola ; Roos, Per ; Hou, Xiaolin ; Lutter, Guillaume ; Nielsen, Sven Poul
in journal: Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment (ISSN: 0168-9002) (DOI: http://dx.doi.org/10.1016/j.nima.2017.10.086), vol: 880, pages: 194-200, 2018

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2018     |    DOI: http://dx.doi.org/10.1016/j.nima.2017.10.086

 

On the application of ICP-MS techniques for measuring uranium and plutonium: a Nordic inter-laboratory comparison exercise

Qiao, Jixin ; Lagerkvist, Petra ; Rodushkin, Ilia ; Salminen-Paatero, Susanna ; Roos, Per ; Lierhagen, Syverin ; Jensen, Karl Andreas ; Engstrom, Emma ; Lahaye, Yann ; Skipperud, Lindis
in journal: Journal of Radioanalytical and Nuclear Chemistry (ISSN: 0236-5731), 2018

Type: Journal article (Peer reviewed)

Status: Accepted/In press     |    År: 2018

2017
 

Low-level gamma-ray spectrometry for the determination of 210Pb

Markovic, Nikola ; Roos, Per ; Nielsen, Sven Poul
in journal: Journal of Radioanalytical and Nuclear Chemistry (ISSN: 0236-5731) (DOI: http://dx.doi.org/10.1007/s10967-016-5091-z), vol: 311, pages: 1473–1478, 2017

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2017     |    DOI: http://dx.doi.org/10.1007/s10967-016-5091-z

 

Digital gamma-gamma coincidence HPGe system for environmental analysis

Markovic, Nikola ; Roos, Per ; Nielsen, Sven Poul
in journal: Applied Radiation and Isotopes (ISSN: 0969-8043) (DOI: http://dx.doi.org/10.1016/j.apradiso.2016.12.017), vol: 126, pages: 194-196, 2017

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2017     |    DOI: http://dx.doi.org/10.1016/j.apradiso.2016.12.017

 

Pottery versus sediment: Optically stimulated luminescence dating of the Neolithic Vinča culture, Serbia

Bate, Stephen ; Stevens, Thomas ; Buylaert, Jan-Pieter ; Marković, Slobodan B. ; Roos, Per ; Tasić, Nenad
in journal: Quaternary International (ISSN: 1040-6182) (DOI: http://dx.doi.org/10.1016/j.quaint.2014.09.042), vol: 429, issue: Part A, pages: 45-53, 2017

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2017     |    DOI: http://dx.doi.org/10.1016/j.quaint.2014.09.042

 

Anthropogenic 236U in Danish Seawater: Global Fallout versus Reprocessing Discharge

Qiao, Jixin ; Steier, Peter ; Nielsen, Sven Poul ; Hou, Xiaolin ; Roos, Per ; Golser, Robin
in journal: Environmental Science and Technology (ISSN: 0013-936X) (DOI: http://dx.doi.org/10.1021/acs.est.7b00504), vol: 51, issue: 12, pages: 6867-6876, 2017

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2017     |    DOI: http://dx.doi.org/10.1021/acs.est.7b00504

 

Pacific Proving Grounds radioisotope imprint in the Philippine Sea sediments

Pittauer, Daniela ; Roos, Per ; Qiao, Jixin ; Geibert, Walter ; Elvert, Marcus ; Fischer, Helmut W.
in journal: Journal of Environmental Radioactivity (ISSN: 0265-931X) (DOI: http://dx.doi.org/10.1016/j.jenvrad.2017.06.021), 2017

Type: Journal article (Peer reviewed)

Status: Accepted/In press     |    År: 2017     |    DOI: http://dx.doi.org/10.1016/j.jenvrad.2017.06.021

 

Inter-laboratory exercise with an aim to compare methods for 90Sr and 239,240Pu determination in environmental soil samples

Qiao, Jixin ; Salminen-Paatero, Susanna ; Rondahl, Stina Holmgren ; Bourgeaux-Goget, Marie ; Roos, Per ; Lagerkvist, Petra ; Strålberg, Elisabeth ; Ramebäck, Henrik
in journal: Journal of Radioanalytical and Nuclear Chemistry (ISSN: 0236-5731) (DOI: http://dx.doi.org/10.1007/s10967-017-5385-9), vol: 314, issue: 2, pages: 813-826, 2017

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2017     |    DOI: http://dx.doi.org/10.1007/s10967-017-5385-9

 

Erratum to: Inter-laboratory exercise with an aim to compare methods for 90Sr and 239,240Pu determination in environmental soil samples

Qiao, Jixin ; Salminen-Paatero, Susanna ; Rondahl, Stina Holmgren ; Bourgeaux-Goget, Marie ; Roos, Per ; Lagerkvist, Petra ; Strålberg, Elisabeth ; Ramebäck, Henrik
in journal: Journal of Radioanalytical and Nuclear Chemistry (ISSN: 0236-5731) (DOI: http://dx.doi.org/10.1007/s10967-017-5496-3), vol: 314, issue: 2, pages: 827, 2017

Type: Journal article (Peer reviewed)

Status: Published     |    År: 2017     |    DOI: http://dx.doi.org/10.1007/s10967-017-5496-3

 

Challenges associated with the behaviour of radioactive particles in the environment

Salbu, Brit ; Kashparov, Valery ; Lind, Ole Christian ; Garcia-Tenorio, Rafael ; Johansen, Mathew P. ; Child, David P. ; Roos, Per ; Sancho, Carlos
in journal: Journal of Environmental Radioactivity (ISSN: 0265-931X) (DOI: http://dx.doi.org/10.1016/j.jenvrad.2017.09.001), 2017

Type: Journal article (Peer reviewed)

Status: Accepted/In press     |    År: 2017     |    DOI: http://dx.doi.org/10.1016/j.jenvrad.2017.09.001