Metadata for 4_Hot_Particle_Activity.csv
Column heading	Explanation	Units	Notes	
Code	Database serial number - unique ID	 n/a	 n/a	
Identifier	UIAR unique label - chemical analysis number	 n/a	 n/a	
Angle_degree	Angle coordinate of the HP sampling point. The angle is counted clockwise in polar system with ChNPP as a centre (North corresponds to 0° and 360°). 	degree	Hot particles were selected from soil samples using a detector equipped with a collimator.  	
DIST_km	Distance coordinate of the HP sampling point in the polar coordinate system. The particles labelled with (X…), with the coordinates (0, 0), were sampled in ChNPP “Shelter” or sarcophagus.	kilometer	 The distance of 500 km for the Polish samples is an approximation.	
MAXSIZE_um	Particle size - maximum	micrometer	 	
MINSIZE_um	Particle size - minimum	micrometer	 	
Burnup_MW_d_kg-1	Calculated using  activity ratio of low-mobile refractory radionuclides and caesium isotopes and classified into 17 groups 		Kuriny et al., 1993, Kashparov et al., 1996, Begichev et al., 1990; Kashparov et al., 1997	
VIEW	Visual representation of what the particle looks like; for A, B, C see notes		See Dabrowska et al, 1989. Poland particles divided into 3 groups: Group A contains mostly two isotopes Ru-103 and Ru-106; Group B which is rich in Ru-103, Ru-106, Ce-141, Ce-144, Zr-95, Nb-95, Cs-134 and Cs-137 isotopes; Group C which resembles the group B in isotope contents but with higher abundance of Ru; this is an intermediate group between A and B.	
COLOR	Particle colour	 	 	
FORM	Inclusions	 	 	
STRUCT	structure of particle or Warsaw sample location (see notes) 	e.g. crystalline, fine grained, fragmented	1 - Mikolajki; 
2 - Warsawa; 
3 - Lomza; 
4 - Bialystok;
5 - Suwalki.	
TYPE	HP type (fuel, condensed). Chernobyl hot particles can be classified into: particles of fine-dispersed nuclear fuel or condensed particles (most often so called 'ruthenium' particles)	 	 	
DATE_Gamma	Data of gamma measurement	dd-mmm-yyyy	 	
Activity_of_95Zr_Bq	Total 95Zr activity in the particle	bequerels	 	
STD_of_95Zr_Bq	Standard deviation at 95% confidence interval for 95Zr	bequerels	 	
Activity_of_95Nb_Bq	Total 95Nb activity in the particle	bequerels	 	
STD_of_95Nb_Bq	Standard deviation at 95% confidence interval for 95Nb	bequerels	 	
Activity_of_106Ru_Bq	Total 106Ru activity in the particle	bequerels	 	
STD_of_106Ru_Bq	Standard deviation at 95% confidence interval for 106Ru	bequerels	 	
Activity_of_125Sb_Bq	Total 125Sb activity in the particle	bequerels	 	
STD_of_125Sb_Bq	Standard deviation at 95% confidence interval for 125Sb	bequerels	 	
Activity_of_134Cs_Bq	Total 134Cs activity in the particle	bequerels	 	
STD_of_134Cs_Bq	Standard deviation at 95% confidence interval for 134Cs	bequerels	 	
Activity_of_137Cs_Bq	Total 137Cs activity in the particle	bequerels	 	
STD_of_137Cs_Bq	Standard deviation at 95% confidence interval for 137Cs	bequerels	 	
Activity_of_144Ce_Bq	Total 144Ce activity in the particle	bequerels	 	
STD_of_144Ce_Bq	Standard deviation at 95% confidence interval for 144Ce	bequerels	 	
Activity_of_154Eu_Bq	Total 154Eu activity in the particle	bequerels	 	
STD_of_154Eu_Bq	Standard deviation at 95% confidence interval for 154Eu	bequerels	 	
Activity_of_155Eu_Bq	Total 155Eu activity in the particle	bequerels	 	
STD_of_155Eu_Bq	Standard deviation at 95% confidence interval for 155Eu	bequerels	 	
Activity_of_54Mn_Bq	Total 54Mn activity in the particle	bequerels	 	
STD_of_54Mn_Bq	Standard deviation at 95% confidence interval for 54Mn	bequerels	 	
Activity_of_60Co_Bq	Total 60Co activity in the particle	bequerels	 	
STD_of_60Co_Bq	Standard deviation at 95% confidence interval for 60Co	bequerels	 	
Activity_of_241Am_Bq	Total 241Am activity in the particle	bequerels	 	
STD_of_241Am_Bq	Standard deviation at 95% confidence interval for 241Am	bequerels	 	
DATE_Alpha	Data of alpha measurement	dd-mmm-yyyy	 	
Total_alpha_activity_Bq	Total alpha activity in the particle	bequerels	 	
DATE_Beta	Data of beta measurement	dd-mmm-yyyy	 	
Activity_of_90Sr_Bq	Total 90Sr activity in the particle	bequerels	 	

References
Begichev S. N., Borovoy A. A., Burlakov E. V., Havrilov S. L., Dovbenko A. A., Levina L. A., Markushev D. M., Marchenko A. E., Stroganov A. A., Tataurov A. K.: Preprint IAE-5268/3: Reactor Fuel of Unit 4 of the Chernobyl NPP (a brief handbook). Moscow. Publisher Kurchatov Institute of atomic energy, 21p. (In Russian), 1990.
Kashparov, V. A., Ivanov, Yu A., Zvarich, S. I., Protsak, V. P., Khomutinin, Yu V., Kurepin, A. D. and Pazukhin, E. M.: Formation of Hot Particles During the Chernobyl Nuclear Power Plant Accident. Nuclear Technology, 114, 246-253, 1996.
Kashparov, V. A., Ivanov, Yu A., Protsak, V. P., Khomucinin, Yu V., Yoschenko, V. I., Pazukhin, E. M.: Assessment of the maximal temperature and of the duration of annealing of Chernobyl fuel particles during the accident. Radiokhimiya (Radiochemistry) 39, 1, 66-70 (in Russian), 1997.
Kuriny, V. D., Ivanov, Yu A., Kashparov, V. A., Loschilov, N. A., Protsak, V. P., Yudin, E. B., Zhurba, M. A. and Parshakov, A. E.: Particle associated Chernobyl fall-out in the local and intermediate zones. Annals of Nuclear Energy, 20, 6, 415-420, 1993.
Zhurba M., Kashparov V., Ahamdach N., Salbu B., Yoschenko V. and Levchuk S.: The “hot particles” data base. Radioactive Particles in the Environment, NATO Science for Peace and Security Series C: Environmental Security, ed. by D.Oughton, V. Kashparov, Published by Springer, the Netherlands  187-195 doi:10.1007/978-90-481-2949-2_12, 2009.