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Bank of Pure Isotopes

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Project activity in the first 18 months - Report on new isotopes possibly produced in Russia ... (not well oxidize with presence of TeO, contaminated with Si) ... – PowerPoint PPT presentation

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Title: Bank of Pure Isotopes


1
Bank of Pure Isotopes
  • Ezio Previtali
  • INFN Sez. Milano
  • Department of Physics
  • University of Milano Bicocca

2
Project activity in the first 18 months
18 months
12 months
6 months
- Negotiations for production of the selected
isotopes - Contact with Russian and US labs for
purification techniques
- Definition of a program for utilization of
available isotopes - Selection of new interesting
isotopes and discussion of enrichment and
purification techniques
- Formation of the isotope working group -
Contacts with Russian labs
milestones
- Report on new isotopes possibly produced in
Russia -Report on purification issues
- Report on possibilities of Russian labs -
Report on a recommended program - First
conclusions on isotope selection and purification
deliverables
3
Milestones of the First six months
Collaboration with Isotope Enrichment working
group in IDEA can be crucial
Formation of isotope working group
Ettore Fiorini University of Milano Bicocca and
INFN Sez. Milano Pietro Benetti University of
Pavia and INFN Sez. Pavia Carlo Bucci Gran Sasso
Laboratory of INFN ..
Contact with Russian labs Discussion and
eventually visit at Kurchatov Institute
(Moscow) Contact with Russian scientific
foundation for other possible sources Possible
labs involved in purification
Contact with other labs Evaluation of possible
enrichments in USA and Europe Laboratory with
experience in cleaning techniques
4
Utilization of available isotopes
Preliminary collection of data with information
on Isotope types and chemical
forms Radioactive purity and eventually
radioactive measurements Actual usage of
Isotopes Availability for new experiments during
next few years Definition of a strategy for
allocate Isotopes
Problems Different experiments may need
different chemical composition Time schedule for
distributing available isotopes
5
Selection of new and interesting Isotopes
Production resources Available techniques for
producing Enriched Isotopes Time needed for
production of a definite quantity of
material Cost of the enrichment Radioactive
purity at the end of the enrichment (quality test)
Purification after the enrichment Analysis of
purification techniques Procedures for obtaining
the final chemical compound Physical and
Chemical analysis on final production
6
Definition of a specific enrichment
program Example of an enrichment of 130Te for
CUORE
Selection of the starting Te metal based on radio
purity Transformation in TeF6 and enrichment in a
ultracentrifuge Transformation in a metallic form
or in a TeO2 Tests of radioactive and chemical
quality TeO2 crystals growing
In our previous experience Radioactive quality
of oxidation production Good Chemical
characteristics of TeO2 Bad (not well oxidize
with presence of TeO, contaminated with
Si) Final quality of TeO2 crystals Poor
We need to check all the procedures and not only
the enrichment
7
Expense Plan for the next 12 months For travels
in Europe 5 k For travels in Russia 5
k For travels in USA 5 k This evaluation
strongly depend on the real activated
collaborations
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