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Radiation Protection info update

Radiation Protection info update. 17 th LTEX Meeting 21 .03.2013. C. Adorisio (DGS/RP). Radiological Classification. Radiological Classification. Radiological Classification. Radiological Classification. RP Training Courses. Is DIMR needed?. Is DIMR needed?.

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Radiation Protection info update

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  1. Radiation Protection info update 17th LTEX Meeting 21.03.2013 C. Adorisio (DGS/RP)

  2. Radiological Classification LTEX Meeting, March 21st - 2013

  3. Radiological Classification LTEX Meeting, March 21st - 2013

  4. Radiological Classification LTEX Meeting, March 21st - 2013

  5. Radiological Classification LTEX Meeting, March 21st - 2013

  6. RP Training Courses LTEX Meeting, March 21st - 2013

  7. Is DIMR needed? LTEX Meeting, March 21st - 2013

  8. Is DIMR needed? LTEX Meeting, March 21st - 2013

  9. TREC (Traceability of Radioactive Equipment at CERN) • The TREC system is present in each buffer zone: • Touch screen and bar-code reader • Bar-code stickers • TREC training course on SIR: http://sir.cern.ch LTEX Meeting, March 21st - 2013

  10. TREC (Traceability of Radioactive Equipment at CERN) • All the materials, included waste, coming out from the LHC tunnel, have to be registered in TREC and left in the buffer zone to be controlled by RP • The equipment too big to be left in the buffer zone they could be temporary left outside the buffer zone (but this has to be previously agreed by RP) • All the transports of radioactive material have to be done with the RP authorization (fiche jaune) LTEX Meeting, March 21st - 2013

  11. Radioactive material transport • All the radioactive material internal transport (intra and intersites): • EDH transport request (TNRQ) or • material stackage request (STOCK); • RP authorization is mandatory (fiche jaune) • CERN car is mandatory • If the dose rate at contact is higher than 5 µSv/h, the transport has to be done by EN/HE • Rules: EDMS 1198577 LTEX Meeting, March 21st - 2013

  12. New DMC reading system • Automatic reading and logging in a new RP database with new electronic DMC readers (LDM) • Link between IMPACT and the Operational Dosimetry system: the IMPACT number will have to be typed on the LDM • In addition to be logged in the RP database, the doses will be kept in the IMPACT database LTEX Meeting, March 21st - 2013

  13. DMC: Pool Mode Assigned dosimeters Pool dosimeters • The dosimeter is assigned to a worker, when the dose is read it is automatically logged into the RP database (DB) under his/her name • The user only have to type the IMPACT number on the reader. • The dosimeter is not assigned to a worker, when he/she access he/she needs to type first his/her CERN ID and then he/she has to type the IMPACT number on the reader. • At the reading, the dose is automatically registered under his/her name in the DB Before accessing Type the IMPACT number Type your CERN ID Ready to access At exit: after reading LTEX Meeting, March 21st - 2013

  14. DMC: second phase In future • Second step of the project: during LS1, in compliance to the recommendations from the Host States Authorities (ASN/OFSP), the DMC will become mandatory in the Simple Controlled Radiation Areas. Meanwhile: usually no need to borrow a DMC for the work in Simple Controlled Radiation Area or in Supervised Radiation Area (except DIMR II/III) • At the beginning, a list of the active IMPACT numbers will be displayed next to each DMC reader and will be kept up to date by RP (weekly). At a later stage we will investigate the possibility to simplify this feature. LTEX Meeting, March 21st - 2013

  15. In case of problem? • Alarm: leave the area immediately and contact the Radiation Protection Service for the concerned area: • Meyrin, tel. : +41 22 76 72504 • Prévessin, SPS & LHC, tel. : +41 22 76 75252 • Technical problem (battery, DMC HS, LDM HS, etc….), please contact the Operational Dosimetry Service: • Tel. : +41 22 76 70538 • operational.dosimetry@cern.ch LTEX Meeting, March 21st - 2013

  16. Optimization during design Material choice Goal: • Minimize doses received by personnel during maintenance and repair • Reduce costs for waste disposal • Consider radiological hazards in the choice of construction materials Tool to optimize material choices: ActiWiz (Authors: C.Theis and Helmut Vincke) • Computer code based on a risk model using pre-calculated FLUKA results. Considers external exposure and radioactive waste disposal • Provides radiological hazard assessment for arbitrary materials within a few seconds • Catalogue, produced with ActiWiz, listing pre-processed risk factors for typical accelerator construction materials as well as natural elements • Web-based catalogue (ActiWeb) allowing user friendly comparison of pre-processed materials • Materials not available in the catalogue can be processed with ActiWiz Web-site: https://actiwiz.web.cern.ch/ LTEX Meeting, March 21st - 2013

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