k0-INAA of Archaeological and Industrial Venezuelan Samples

Farina, Felicia; Pino, F.; Sneyers, L.; Vermaecker, P.; Barros, H.; Sajó-Bohus, L.; Antczak, Ma. Magdalena; Antczak, Andrzej T.; Greaves, E.D.; Palacios, D.

doi:10.1063/1.2813854

Cited by 1 publication

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“…rare earths. It was also observed that some minerals are not affected by the alkaline chemical reactions [4] therefore lower environmental impact is expected. The RM waste site covers several dozens of hectares down to few meters depth and for its radioactive content relate to Thorium family radioisotopes, posing radioecological concern.…”

Section: Red Mud and Phosphogypsum Tenorm Aspectsmentioning

confidence: 99%

“…In the case of samples from the industrial waste BAUXILUM pond (Puerto Ordaz, Bolivar state), high energy resolution gamma spectrometry measurements indicate that radioactive concentration is between 2.0 and 3.5 kBq.kg -1 [4]. Nevertheless the international literature [9] reported its utilization as additives in geopolymers [10], [11], clay material, cements, ceramics, fired and no fired breaks [12].…”

Section: Radiation Measurements: Sample Consideration and Analytical mentioning

confidence: 99%

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Alpha Emitter Intrinsic Concentration in Copper required for Nuclear Spectrometry Application

Camacho

Jaworski

Keppel

et al. 2017

JNP

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Radon exhalation from phosphogypsum (PG) and red mud (RM) samples are of environmental concern. The study is oriented to evaluate by different nuclear techniques, industrial materials cumulated in sites at Morón (PG) and Puerto Ordaz (RM) in Venezuela. RM samples and industrial by products are assessed for its potential use as additives in building materials regarding its radiological health risk. Radioactive matter concentration in RM is up to 11.6 kBq.kg-1. Radon concentration range for RM dry powder is between DL and 2.5 kBq.m-³ and for PG is between 105-340 Bq.m-³. Results indicate that industrial by product before it can be used as additive; require remedial actions to lower the environmental impact. Experimental values are compared with locally available cement, bricks and gypsum building materials.

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Section: Red Mud and Phosphogypsum Tenorm Aspectsmentioning

confidence: 99%