PMID- 37176402 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230515 IS - 1996-1944 (Print) IS - 1996-1944 (Electronic) IS - 1996-1944 (Linking) VI - 16 IP - 9 DP - 2023 May 4 TI - Hungarian Fine-to-Coarse Aggregate, a Possible Constituent of Near-Vessel Structural Concrete of Nuclear Power Plants. LID - 10.3390/ma16093520 [doi] LID - 3520 AB - Significant gravel mines, representative of four regions of Hungary (northeast, central, northwest, and southwest) were systematically sampled to characterize their sand and pebbles as potential constituents of nuclear-grade concrete. The samples were analysed for their elemental compositions as a function of the mining locality and grain size, using two complementary neutron-based analytical techniques, prompt gamma activation analysis (PGAA) and neutron activation analysis (NAA). The combined analysis resulted in reliable mass fractions for over thirty elements that could be used to assess the radiation shielding and activation properties of the resulting concrete, essential in nuclear applications, by means of computer simulations. The studied aggregates are proven to be appropriate constituents for biological shielding at radiological centres, NPPs, and at nuclear research installations, even in mixed neutron/gamma radiation fields. The elemental compositions also revealed geochemical differences between the sedimentologically different regions. FAU - Gmeling, Katalin AU - Gmeling K AD - Nuclear Analysis and Radiography Department, Centre for Energy Research, 1121 Budapest, Hungary. FAU - Szilagyi, Veronika AU - Szilagyi V AUID- ORCID: 0000-0001-8522-676X AD - Nuclear Analysis and Radiography Department, Centre for Energy Research, 1121 Budapest, Hungary. FAU - Harsanyi, Ildiko AU - Harsanyi I AUID- ORCID: 0000-0001-5031-8488 AD - Nuclear Analysis and Radiography Department, Centre for Energy Research, 1121 Budapest, Hungary. FAU - Szentmiklosi, Laszlo AU - Szentmiklosi L AUID- ORCID: 0000-0001-7747-8545 AD - Nuclear Analysis and Radiography Department, Centre for Energy Research, 1121 Budapest, Hungary. LA - eng GR - NN 127102/National Research, Development and Innovation Office/ PT - Journal Article DEP - 20230504 PL - Switzerland TA - Materials (Basel) JT - Materials (Basel, Switzerland) JID - 101555929 PMC - PMC10179888 OTO - NOTNLM OT - aggregate OT - long-lived isotopes OT - neutron and gamma-ray radiation OT - nuclear analytical techniques OT - pebble OT - sand OT - shielding concrete COIS- The authors declare no conflict of interest. EDAT- 2023/05/13 15:13 MHDA- 2023/05/13 15:14 PMCR- 2023/05/04 CRDT- 2023/05/13 01:32 PHST- 2023/03/08 00:00 [received] PHST- 2023/04/18 00:00 [revised] PHST- 2023/04/28 00:00 [accepted] PHST- 2023/05/13 15:14 [medline] PHST- 2023/05/13 15:13 [pubmed] PHST- 2023/05/13 01:32 [entrez] PHST- 2023/05/04 00:00 [pmc-release] AID - ma16093520 [pii] AID - materials-16-03520 [pii] AID - 10.3390/ma16093520 [doi] PST - epublish SO - Materials (Basel). 2023 May 4;16(9):3520. doi: 10.3390/ma16093520.