IEAP - Institute of Experimental and Applied Physics CTU - Czech Technical University in Prague
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IEAP - Institute of Experimental and Applied Physics CTU - Czech Technical University in Prague
CTU - Czech Technical University in Prague
Partial tasks  > TGV (measurement of double beta decay of 48Ca and 106Cd)
TGV (measurement of double beta decay of 48Ca and 106Cd)

TGV is the measurement of double beta decay of 48Ca and 106Cd. The TGV collaboration (IEAP CTU, JINR Dubna, CSNSM, KU Bratislava, INP) has been interested in experimental investigation of ββ decay for several years. The collaboration measured half-live of two-neutrinos double beta decay of 48Ca isotope with the TGV I detector. Based on the experience with the spectrometer TGV I, the more efficient low-background spectrometer TGV II was constructed. The most important feature of the TGV II is its ability to study small amount of materials with high efficiency (especially samples made of isotopes available only in small quantities, e.g. 106Cd). At present the collaboration TGV is devoted to the investigation of the two-neutrinos double electron capture (2νEC/EC) in 106Cd. The result of T1/2 ≥ 3.0 x 1020 years for 2νEC/EC (g.s → g.s) decay of 106Cd has been found after the processing of experimental data obtained after 8700 hours (1 year) of measuring time using approximately 8 gramme of 106Cd. The Phase II of this measurement started in December 2007 with appr. 15 gramme of 106Cd. The Phase II of TGV II experiment is planned for period of 3-4 years.

Coordinator
Štekl Ivan IEAP
Brudanin V.B. JINR

Responsible person

Co-workers
Bočarov Viktor IEAP
Briancon Ch. CSNSM
Kovalík A. INP
Rukhadze N.I. JINR
Šimkovic F. Comenius university
Egorov V. JINR
Mamedov Fadahat IEAP


All
(22)
Text format
Year

Ocenění Name Author Scientific journal OceněníYear
The high sensitivity double beta spectrometer TGV Nucl. Instr. Meth. Phys. Res. A 372 (1996) 222-228 1996
Present Status and Future of the Experiment TGV Czech. Journal of Phys. vol.48, No.2 (1998) 165-166 1998
Proposal of Measurement of Double Beta Decay of 106Cd Czech. Journal of Phys. vol.48, No.2 (1998) 249-252 1998
Double Beta Decay of 48Ca in the TGV Experiment Brudanin V.; Beneš P.; Čermák P.; Štekl I.; et al. Phys. of Atomic Nuclei, vol. 63, No. 7 (2000) 1218-1221 2000
Experiments TGV I (double-beta decay of 48Ca) and TGV II (double-beta decay of 106Cd and 48Ca) Czech. Journal of Physics, vol. 50 (2000), No.4, 553-559 2000
Search for the Double Beta Decay of 48Ca in the TGV Experiment Brudanin V.; Štekl I.; Čermák P.; Kovalík A.; et al. Phys. Lett. B 495 (1-2) (2000) 63-68 2000
Measurement of double-beta-decay - experiments TGV and NEMO Štekl I. Radiation Physics and Chemistry 61 (2001) 309-315 2001
Distinguishing between electrons and gamma rays in the experiment TGV using a pulse rise time Čermák P.; Štekl I.; Beneš P.; Brudanin V.; Vénos D.; et al. Czech. Journal of Phys. 52: (4) 583-587, 2002 2002
Improved limits on beta- and beta-beta- decays of 48Ca Brudanin V.; Beneš P.; Čermák P.; Štekl I.; Kovalík A.; et al. Pisma v JETP, vol. 76, No.9 (2002) 643-644 2002
Present status of the experiment TGV II Štekl I.; Čermák P.; Beneš P.; Brudanin V.; Šimkovic F.; et al. Czech.Journal of Phys. 52: (4) 541-545 (2002) 2002
Search for β- and β-β- decays of 48Ca Brudanin V.; Štekl I.; Kovalík A.; et al. Nuclear Physics A700(1-2) (2002) 17-24 2002
Spectrometer TGV-II for Double Beta Decay (Supervisor: I. Stekl - FNSPE CTU) Beneš P. Master Thesis, CTU Prague 2002
First results for the measurement of double-electron capture of 106Cd in the experiment TGV II Štekl I.; Beneš P.; Čermák P.; Brudanin V.; Šimkovic F.; et al. Czech.J. Physics 56 (2006) 505-510 2006
Search for double electron capture of Cd-106 Rukhadze N.; Brudanin V.; Beneš P.; Čermák P.; Štekl I.; Kovalík A.; et al. PHYSICS OF ATOMIC NUCLEI 69 (12): 2117-2123 DEC 2006 2006
The low background spectrometer TGV II for double beta decay measurements Čermák P.; Beneš P.; Štekl I.; Rukhadze N.; Kovalík A.; et al. NIM A 569 (2006) 737-742 2006
Experiment TGV (Supervisor: I. Stekl) Čermák P. Ph.D. Thesis, CTU Prague 2007
The TGV II experiment (Phase I Results) Čermák P.; Štekl I.; Beneš P.; Briancon C.; Brudanin V.; Kovalík A.; Šimkovic F.; et al. AIP Conference Proceedings 942 (2007) 19-22 2007
Possibility of measuring the CP Majorana phases in neutrinoless double-beta decay Šimkovic F.; Bilenky S.; Faessler A.; Gutsche T. Phys. Rev. D 87, 073002 2013
Arbitrary mass Majorana neutrinos in neutrinoless double beta decay Faessler A.; Gonzales M.; Kovalenko S.; Šimkovic F. Phys. Rev. D 90, 096010 2014
Chiral two-body currents and neutrinoless double-β decay in the quasiparticle random-phase approximation Engel J.; Šimkovic F.; Vogel P. Phys. Rev. C 89, 064308 2014
Neutrino propagation in nuclear medium and neutrinoless double-beta decay. Kovalenko S.; Krivoruchenko M.; Šimkovic F. Phys. Rev. Lett. 112, 142503 2014
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