Ciemat Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas Daniel Cano-Ott, June 14 th and 15 th, n_TOF External Panel Review Minor.

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Presentation transcript:

Ciemat Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas Daniel Cano-Ott, June 14 th and 15 th, n_TOF External Panel Review Minor Actinide Samples for the n_TOF-Ph2 (neutron capture) measurements

Ciemat Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas Daniel Cano-Ott, June 14 th and 15 th, n_TOF External Panel Review ElementAt 1/2LA (Bq)E_inh_effA (1mSv)lambdaN (Atoms)M (mg) (a)(Bq)(Sv/Bq)(Bq)(s-1) Pa E E E E E U E E E E U E E E E U E E E E E U E E E E E Am E E E E Am E E E E Pu E E E E E Pu E E E E E Pu E E E E E Cm E E E E E The two golden rules to be followed at the n_TOF Experimental Area: 1.ISO-2919 containers 2.Mass limits for actinides inside ISO-2919 containers (source: Thomas Otto, 2007)

Ciemat Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas Daniel Cano-Ott, June 14 th and 15 th, n_TOF External Panel Review Measurements done in 2004: 237 Np, 240 Pu and 243 Am samples inside Titanium ISO-2919 certified cannings. Ti ISO-2919 certified canning Very successful measurements even with NON-optimised cannings

Ciemat Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas Daniel Cano-Ott, June 14 th and 15 th, n_TOF External Panel Review Measurements planned for >: 231 Pa, 233,235 U, 240,242 Pu, 243 Am samples inside ISO-2919 “long” containers (10 to 50 times less background, NIMA in preparation) Window surrounded by neutron absorber ( 10 B or 6 Li doped polyethylene) Thin Al backing + actinide sample He Neutron absorber Calorimeter Option 1: pure (n,  ) setup

Ciemat Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas Daniel Cano-Ott, June 14 th and 15 th, n_TOF External Panel Review Thin Al backing + actinide sample Ionisation chamber Neutron absorber Calorimeter Option 2: combined (n,  ) + (n,f) tagging setup

Ciemat Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas Daniel Cano-Ott, June 14 th and 15 th, n_TOF External Panel Review Calendar of events and actions: End of st negotiation with the Russian Federal Center of Nuclear Physics (RFCNP - Sarov). First quotation for the samples. Postponed until n_TOF restart – Optimisation of the sample container by MC simulations: CIEMAT and ITN. End of Meeting in Madrid: CIEMAT, CEA and Russian delegation lead by the Prof. Leonid Ponomarev (Scientific leader of MUCATEX). Preparation of a MoU for the preparation of MA samples for n_TOF-Ph2 Feb 2007 – Draft agreement between CIEMAT, CEA and the RFCNP. May 2007 – Meeting in Moscow between head of CIEMAT’s Nuclear Fission division and RFCNP head of laboratory. Agreement finalised and waiting now for the new offer. Ready for submitting a new proposal to INTC (+ 3 submitted already). Ready and anxious for the beam.

Ciemat Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas Daniel Cano-Ott, June 14 th and 15 th, n_TOF External Panel Review In Europe, those samples can ONLY be measured at n_TOF: facility + detectors + CERN infrastructure + EXTREMELY well characterised (years of work).