GEONEUTRINOS AND EARTH HEAT FLUX V V Sinev

  • Slides: 33
Download presentation
GEONEUTRINOS AND EARTH HEAT FLUX V. V. Sinev (INR, Moscow) in collaboration with L.

GEONEUTRINOS AND EARTH HEAT FLUX V. V. Sinev (INR, Moscow) in collaboration with L. B. Bezrukov, A. S. Kurlovich, B. K. Lubsandorzhiev, A. K. Mezokh, V. P. Zavarzina (INR, Moscow) and V. P. Morgaluk (A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Moscow) ICPPA-2017 October, 2 -5, MEPh. I, Moscow

Plan of the talk � � � Introduction Modern knowledge on Earth heat flux

Plan of the talk � � � Introduction Modern knowledge on Earth heat flux (origin and transfer to the surface) Geoneutrinos (how do they connect to heat flux) Detectors (working and under construction) Conclusion 14. 06. 2021 ICPPA-2017 MEPh. I Moscow 2 /33

Introduction � � The origin of the Earth thermal flux is not understood completely.

Introduction � � The origin of the Earth thermal flux is not understood completely. The value of the heat flux from Earth interior also could be revised. Modern Earth model regards radiogenic heat as about a half of total measured one. Registering of antineutrinos on the Earth surface can help to understand if the most part of the heat flux is due to radioactivity or not. Also there is possibility to analyze reservoirs of heat sources from radioactivity inside the Earth. 14. 06. 2021 ICPPA-2017 MEPh. I Moscow 3 /33

Primordial heat sources: � � Gravitational energy Short-lived isotopes decays, say, as 26 Al

Primordial heat sources: � � Gravitational energy Short-lived isotopes decays, say, as 26 Al (7. 17× 105 y) or 234 U (2. 455× 105 y) etc. 14. 06. 2021 ICPPA-2017 MEPh. I Moscow 4 /33

14. 06. 2021 ICPPA-2017 MEPh. I Moscow From the talk by O. Smirnov at

14. 06. 2021 ICPPA-2017 MEPh. I Moscow From the talk by O. Smirnov at 5 /33 Nalchik Baksan-50

14. 06. 2021 ICPPA-2017 MEPh. I Moscow From the talk by O. Smirnov at

14. 06. 2021 ICPPA-2017 MEPh. I Moscow From the talk by O. Smirnov at Nalchik Baksan-50 6 /33

What is correct value? Measured value may be not complete. If there are other

What is correct value? Measured value may be not complete. If there are other estimations of the Earth heat flux? 14. 06. 2021 ICPPA-2017 MEPh. I Moscow 7 /33

Modern value 47 TW Heat transfer ways Thermoconductivity, H(DT) 14. 06. 2021 H =

Modern value 47 TW Heat transfer ways Thermoconductivity, H(DT) 14. 06. 2021 H = H(DT) + H(DF) + H(Ch) Hot gases flows, H(DF) ICPPA-2017 MEPh. I Moscow Chemical potential, H(Ch) 8 /33

Summary of thermal Earth flux results Earth � Bore-hole temperature gradient 47± 2 TW

Summary of thermal Earth flux results Earth � Bore-hole temperature gradient 47± 2 TW � ARGO Earth’s energy imbalance 300± 76 TW Moon recalculated to Earth heat flux � Apollo 15, 17 drilling 43 -65 TW � Russian radio emission exp. 170 TW � LRO temperature map 420 TW We consider the value of 300 TW as the most 14. 06. 2021 9 /33 MEPh. I Moscow favorable to explain. ICPPA-2017 all experimental data.

300 ± 80 TW seems not so high There may be that nonconductive way

300 ± 80 TW seems not so high There may be that nonconductive way of heat transfer by hot gases is the main process in transfer of inner Earth heat. The gases goes up through the narrow gaps and carries up the heat to the surface the chemical potential - potential energy that can be absorbed or released in chemical reactions. 14. 06. 2021 ICPPA-2017 MEPh. I Moscow 10 /33

Several examples illustrating statements done above. 14. 06. 2021 ICPPA-2017 MEPh. I Moscow 11

Several examples illustrating statements done above. 14. 06. 2021 ICPPA-2017 MEPh. I Moscow 11 /33

Journal of Volcanology and Geothermal Research, 27 (1986) 371 --397 A MODEL FOR THE

Journal of Volcanology and Geothermal Research, 27 (1986) 371 --397 A MODEL FOR THE TRANSIENT TEMPERATURE EFFECTS OF HORIZONTAL FLUID FLOW IN GEOTHERMAL SYSTEMS J. P. ZIAGOS and D. D. BLACKWELL 14. 06. 2021 ICPPA-2017 MEPh. I Moscow 12 /33

The way of heat transfer in HE model: the gas carries up the chemical

The way of heat transfer in HE model: the gas carries up the chemical potential Silane - Si. H 4 - gas in temperature region: -112 to +450 °С Formation: Mg 2 Si + 4 H+ = 2 Mg 2+ + Si. H 4 ↑ - Q Decomposition: Si. H 4 + 2 H 2 O = Si. O 2 + 4 H 2 ↑ + Q � Si. H 4 slowly dissolves in water and the decomposition reaction goes slowly under normal conditions – 20% per day. 14. 06. 2021 ICPPA-2017 MEPh. I Moscow 13 /33

Nonconductive way of heat transfer by hot gases 14. 06. 2021 ICPPA-2017 MEPh. I

Nonconductive way of heat transfer by hot gases 14. 06. 2021 ICPPA-2017 MEPh. I Moscow 14 /33

Nonconductive way of heat transfer by hot gases 14. 06. 2021 ICPPA-2017 MEPh. I

Nonconductive way of heat transfer by hot gases 14. 06. 2021 ICPPA-2017 MEPh. I Moscow 15 /33

Do we see the contribution of this mechanism? Yes! 14. 06. 2021 ICPPA-2017 MEPh.

Do we see the contribution of this mechanism? Yes! 14. 06. 2021 ICPPA-2017 MEPh. I Moscow 16 /33

Results of temperature measurements in borehole Rukhoup (Stanop, North England) 14. 06. 2021 ICPPA-2017

Results of temperature measurements in borehole Rukhoup (Stanop, North England) 14. 06. 2021 ICPPA-2017 MEPh. I Moscow 17 /33

Examples of characteristic inverted temperature-depth profiles from the Cascade Range in Oregon (Blackwell et

Examples of characteristic inverted temperature-depth profiles from the Cascade Range in Oregon (Blackwell et al. , 1982) 14. 06. 2021 ICPPA-2017 MEPh. I Moscow 18 /33

Kola (Russia) Superdeep Borehole Deepest point: 12 262 meters. This is a record up

Kola (Russia) Superdeep Borehole Deepest point: 12 262 meters. This is a record up to now. � Main problem: . The temperature is higher than it was expected 180° C instead of expected 100° C. A large quantity of hydrogen gas. The mud that flowed out of the hole was described as “boiling with hydrogen”. � 14. 06. 2021 ICPPA-2017 MEPh. I Moscow 19 /33

What are geoneutrinos and how they could help in understanding the Earth heat flux

What are geoneutrinos and how they could help in understanding the Earth heat flux 14. 06. 2021 ICPPA-2017 MEPh. I Moscow 20 /33

14. 06. 2021 ICPPA-2017 MEPh. I Moscow From the talk by O. Smirnov at

14. 06. 2021 ICPPA-2017 MEPh. I Moscow From the talk by O. Smirnov at Nalchik Baksan-50 21 /33

14. 06. 2021 ICPPA-2017 MEPh. I Moscow From the talk by O. Smirnov at

14. 06. 2021 ICPPA-2017 MEPh. I Moscow From the talk by O. Smirnov at Nalchik Baksan-50 22 /33

14. 06. 2021 ICPPA-2017 From the talk by O. Smirnov at 23 /33 MEPh.

14. 06. 2021 ICPPA-2017 From the talk by O. Smirnov at 23 /33 MEPh. I Moscow Nalchik Baksan-50

Borexino M. Agostini et al. Phys. Rev. D 92, 031101 (2015). Tmeas = 2056

Borexino M. Agostini et al. Phys. Rev. D 92, 031101 (2015). Tmeas = 2056 days (5. 6 years) Np = (0. 977± 0. 05)× 1031 protons on target Exposure (5. 5± 0. 3) × 1031 proton years 23. 7 +6. 5(st)+0. 8 -5. 7(st)-0. 6 geo-nu events 43. 5 TNU 14. 06. 2021 ICPPA-2017 MEPh. I Moscow 24 /33

Kam. LAND A. Gando et al. Phys. Rev. D 88, 033001 (2013). Tmeas =

Kam. LAND A. Gando et al. Phys. Rev. D 88, 033001 (2013). Tmeas = 2991 days (8. 2 years) Np = (5. 98± 0. 13)× 1031 protons on target Exposure (4. 9± 0. 1) × 1032 proton years 116 +28 -27 geo-nu events 23. 67 TNU 14. 06. 2021 ICPPA-2017 MEPh. I Moscow 25 /33

Hydridic Earth (HE) model ( primordially Hydrogen-Rich Planet) was born 40 years ago and

Hydridic Earth (HE) model ( primordially Hydrogen-Rich Planet) was born 40 years ago and does not killed up to now Basic idea: Planet chemical composition depends on distance from the Sun. Earth chemical composition ≠ Asteroid Belt (AB) chemical composition. � 14. 06. 2021 ICPPA-2017 MEPh. I Moscow 26 /33

Hydridic Earth (HE) There are U, Th, K in Lower mantle and Core �

Hydridic Earth (HE) There are U, Th, K in Lower mantle and Core � Mantle → metallic � Core → Fe. H 10 + Mg. H 10 + Na. H 10 + … � Percentage of K in Earth mass is 2 %– 4 % � The calculated radiogenic heat can be up to 650 TW. 40 K decay can give the main contribution in Earth heat flux. Leonid Bezrukov. Geoneutrino and Hydridic Earth model. Preprint INR � 1378/2014. ar. Xiv: 1308. 4163 � HE model predicts that Earth heat flux is not stationary. 14. 06. 2021 ICPPA-2017 MEPh. I Moscow 27 /33

Bezrukov-Sinev Model � � � M(U) = 1. 7× 1017 kg, M(Th) = 6.

Bezrukov-Sinev Model � � � M(U) = 1. 7× 1017 kg, M(Th) = 6. 7× 1017 kg In the Crust they distributed according BSE (Reference Model) In the Mantle and Core they were chosen in abundances not to break observed counting rates (Borexino and Kam. LAND) Experimental Calculated counting rate, TNU 14. 06. 2021 Borexino 43. 5 ± 12. 5 38. 1 Kam. LAND 23. 67 ± 5. 61 31. 8 ICPPA-2017 MEPh. I Moscow 28 /33

Looking for antineutrino flux from 40 K with large liquid scintillator detector V. V.

Looking for antineutrino flux from 40 K with large liquid scintillator detector V. V. Sinev, L. B. Bezrukov (Moscow, INR), E. A. Litvinovich, I. N. Machulin, M. D. Skorokhvatov (Kurchatov Inst. , Moscow & Moscow Phys. Eng. Inst. ), S. V. Sukhotin (Kurchatov Inst. , Moscow). Conference: C 14 -01 -26 Proceedings, Valday, May 13, 2014. 4 pp. e-Print: ar. Xiv: 1405. 3140 [physics. ins-det] Published in Phys. Part. Nucl. 46 (2015) 2, 186 -189 14. 06. 2021 ICPPA-2017 MEPh. I Moscow 29 /33

Recoil electrons spectrum from 40 К in BOREXINO e + e 14. 06. 2021

Recoil electrons spectrum from 40 К in BOREXINO e + e 14. 06. 2021 ICPPA-2017 MEPh. I Moscow 30 /33

EPJ Web of Conference 125, 02004(2016) QUARKS-2016 DOI: 10. 1051/epjconf/201612592004 On geoneutrino. L. B.

EPJ Web of Conference 125, 02004(2016) QUARKS-2016 DOI: 10. 1051/epjconf/201612592004 On geoneutrino. L. B. Bezrukov, A. S. Kurlovich, B. K. Lubsandorzhiev, V. P. Morgalyuk, V. V. Sinev and V. P. Zavarzina We demonstrated that Borexino and Kam. LAND geoneutrino results and 300 TW of thermal Earth flux can be understood noncontradictory in the frame Hydridic Earth model. 14. 06. 2021 ICPPA-2017 MEPh. I Moscow 31 /33

Conclusion 1. 2. 3. 4. 5. Used value (47 TW) of Earth heat flux

Conclusion 1. 2. 3. 4. 5. Used value (47 TW) of Earth heat flux is low limit Nondirect measurements demonstrate higher value of heat flux Explanation of Earth heat flux may be done by geoneutrinos measurement: to explore how much is the Earth radioactivity, where radioactive nuclei are accumulated etc. Large neutrino detector should be constructed to have available statistics in appropriate time 40 K neutrinos registration will give an answer on the heat flux value 14. 06. 2021 ICPPA-2017 MEPh. I Moscow 32 /33

Nonconductive way of heat transfer by hot gases is the main process Thank you

Nonconductive way of heat transfer by hot gases is the main process Thank you for attention 14. 06. 2021 ICPPA-2017 MEPh. I Moscow 33/33

Geoneutrinos Earth composition heat production and deep structuresGeoneutrinos Earth composition heat production and deep structures
Antineutrino geoneutrinos and heat production in the EarthAntineutrino geoneutrinos and heat production in the Earth
Magnetic Flux Density Flux and Flux Linkage ElliottMagnetic Flux Density Flux and Flux Linkage Elliott
14 Heat Specific heat and Latent heat Heat14 Heat Specific heat and Latent heat Heat
14 Heat Specific heat and Latent heat Heat14 Heat Specific heat and Latent heat Heat
HEAT ENERGY HEAT Heat Energy What is HeatHEAT ENERGY HEAT Heat Energy What is Heat
Specific Heat HEAT SPECIFIC HEAT Specific heat PHASESpecific Heat HEAT SPECIFIC HEAT Specific heat PHASE
Heat Flux Wm2 Heat Transfer Coefficient 2 1Heat Flux Wm2 Heat Transfer Coefficient 2 1
Earth Geology Earth Earth Earth topography redmountain bluedepressionEarth Geology Earth Earth Earth topography redmountain bluedepression
Temperature and Heat Heat and Mechanical Work HeatTemperature and Heat Heat and Mechanical Work Heat
HEAT HEAT AND THE WATER CYCLE HEAT ANDHEAT HEAT AND THE WATER CYCLE HEAT AND
Energy and Heat Specific Heat and Heat ofEnergy and Heat Specific Heat and Heat of
Chronopixel RD status November 2013 N B SinevChronopixel RD status November 2013 N B Sinev
Chronopixel project status N B Sinev University ofChronopixel project status N B Sinev University of
Chronopixe status J E Brau N B SinevChronopixe status J E Brau N B Sinev
Tracking resolution Nick Sinev University of Oregon NickTracking resolution Nick Sinev University of Oregon Nick
Vertex Detector RD N B Sinev University ofVertex Detector RD N B Sinev University of
Investigation into Vertex Detector Resolution N B SinevInvestigation into Vertex Detector Resolution N B Sinev
Heat vs Temperature Specific Heat Capacity Heat andHeat vs Temperature Specific Heat Capacity Heat and
Heat Engines Heat Engines First Law and HeatHeat Engines Heat Engines First Law and Heat
Heat and Heat Transfer Heat Temperature Conduction ConvectionHeat and Heat Transfer Heat Temperature Conduction Convection
HEAT STRESS AND HEAT SHOCK What is HeatHEAT STRESS AND HEAT SHOCK What is Heat
Heat Temperature and Thermometers Introduction to Heat HeatHeat Temperature and Thermometers Introduction to Heat Heat
Heat Transfer Conduction Convection and Radiation Heat HeatHeat Transfer Conduction Convection and Radiation Heat Heat