LHCb - Underground Guide Basic training for LHCb guides EDMS No.2150881 (v.1.0.0)
Objectives of the course This e-learning course explains the procedures for underground visits to LHCb during LS2 which are organized by LHCb collaborators. It complements the safety documents: • “Visits on the CERN site”, GSI-SH-1 (EDMS 1137263) • “Visits of LHCb areas ” (EDMS 977538) In order to be a LHCb guide you need to have: 1 Successfully passed Module 1 of this e-learning course 2 Read the relevant safety documents (EDMS 1137263, EDMS 977538) 3 Followed a visit with a qualified guide or a dedicated training session
Conditions and restriction for visits
Conditions and restrictions for visits Locations Visits to the LHCb facilities at Point 8 are limited to: X X X • the ground floor and – if needed and available – the meeting room on the first floor of building 3862 (SCX8); • the exhibition area in buildings 2885 (SX8) and 2895 (SZ8), and the projection room in building 2885; • the visitor circuits in the UX85 cavern (building 2828), in particular the DELPHI and LHCb visitor platforms. DELPHI visitor Exhibition area Projection room LHCb visitor platform (building 2885) (2885/R-008) platform + + + +
Conditions and restrictions for visits Safety • Visits underground are only allowed when safety can be ensured (and can be cancelled at short notice if this is not the case). • Visits underground must be given by trained (and officially appointed) LHCb guides. Radiation safety • Visits underground are only allowed when it is guaranteed that beam will not be present. During LS2, this will in general be the case. • For LS2, the visit areas underground have been radiologically classified as ‘ non-designated ’.
Conditions and restrictions for visits Physical conditions of visitors • Persons participating in underground visits must be fit to climb stairways. • Persons equipped with pacemakers, defibrillators, electronic medicine dispensers, hearing aids or metal implants are authorized to access the LHCb underground area only when it is guaranteed that the dipole magnet is off for the duration of the visit. During LS2, the dipole magnet will in general be off. Visit organizers will be informed in advance if there is a possibility that the magnet might be on.
Conditions and restrictions for visits Number and age of visitors (for underground visits) • The number of visitors per guide must not exceed 12. • School groups must include an accompanying adult (who can also be a visitor) other than the guide. • If there is no accompanying adult, the size of school groups is limited to six visitors per guide. • Children under the age of 12 are not allowed underground. • Only two groups are allowed underground at the same time.
Roles and responsibilities
Roles and responsibilities Visit Supervisor The Visit Supervisor is the person responsible for the overall organization of the visit and is listed as “Responsible” in the IMPACT form She/he can also (but doesn’t have to) be one of the guides. The Visit Supervisor must be familiar with the relevant safety documents (EDMS 1137263, EDMS 977538) and ensure that: • the safety rules and procedures for the visit are followed; • the visit is conducted by qualified LHCb guides; • visitors are informed in advance about access restrictions and dress code. The Visit Supervisor is responsible for the accuracy of the data in the IMPACT form (names of the guides and their cellular phone numbers, number of visitors and guides). After the visit (s)he adds a comment to the IMPACT form, reporting any accident or incidents, and declares the IMPACT as finished.
Roles and responsibilities Guide As an LHCb guide, you will provide information about the LHCb experiment and detector (and to some extent also about CERN and the LHC). It is your responsibility to acquire the necessary knowledge. Documentation is available on the LHCb visits and outreach web pages and on CDS. As a guide you are responsible for the visitors in your group during the visit. In particular you have to: • ensure the safety of the visitors ; and • ensure that no LHCb equipment is damaged . As a guide for an underground visit, you must accompany the visitors at all times and bring them back safely to the surface!
Roles and responsibilities Guide To be appointed as an LHCb guide you must: • have access to (and be familiar with) the LHCb cavern; • have successfully completed this e-learning course; • have participated in at least one visit with a qualified guide or followed a dedicated training session; • be familiar with the CERN rules and procedures for visits; • register with the LHCb secretariat. In order to register as a guide, send an email to LHCb.Secretariat@cern.ch stating in which of the languages you are willing to give visits, your nationality and the country of your home institute.
Before the visit
Before the visit Preparing a visit • Send an email to lhcb-visits@cern.ch with the proposed date and time of your visit and the number of participants. • If a visit is possible, the LHCb secretariat will take care of scheduling the visit and submitting an IMPACT form, based on the information provided by the organizer of the visit. The IMPACT needs to be approved by the Technical Coordination team before the visit can take place. • If the participants do not have CERN access cards, request visitor cards for them (using the CERN Service Portal). • Find guides for the visit (qualified guides can be contacted via lhcb- guides@cern.ch). In case of an underground visit, make sure that all guides have valid access rights to the LHCb cavern.
Before the visit Access rights Make sure that you as a guide have the required accesses. • All guides must have access to the LHCb surface facilities, i.e . LHCB_S access rights in ADaMS. • Guides to the underground LHCb facilities must in addition have access to the LHCb underground area, i.e.: 1. have valid LHCB_U access rights; 2. have a valid personal dosimeter ; 3. have valid training ranks for the UX85 area. • You can check the validity of your access rights and the safety courses you need to follow on ADaMS (http://cern.ch/adams).
Before the visit Before going underground Verify that the size of the group doesn’t exceed the allowed limit (taking into account the age of the visitors). Make sure that all visitors wear helmets and closed flat shoes. ✓ ✓
Before the visit Before going underground Helmets are available in the The cupboard in the SAS corridor towards the PZ85 access (2885/R-002) outside the control point (building 2895/SZ8). room contains spare safety shoes and flashlights.
Before the visit Before going underground Make sure that you as a guide have all necessary equipment. Safety helmet Working headlight Safety shoes CERN Personal or flashlight access card dosimeter • Spare equipment (flashlights, safety shoes) is available in the cupboard in the SAS (room 2885/R-002) outside the control room. • Make sure that you have a mobile phone with you and that its number is listed in the IMPACT form.
Before the visit Before going underground Remind the visitors of the following safety rules. A paper-copy of this list is available next to the key cabinet in building 3862. 1. Safety of those working at CERN or visiting the laboratory is our highest priority. 2. The experimental area contains a number of hazards that stem from operating the detector, e.g. gas systems, high voltage lines, magnetic fields and possible low levels of residual radioactivity. 3. The magnet is currently off and will stay so during the visit, hence there are no particular restrictions. OR The magnet is currently on. For this reason persons with pacemakers, defibrillators, electronic medicine dispensers, hearing aids or metal implants are not allowed in the underground visit.
Before the visit Before going underground Remind the visitors of the following safety rules. A paper-copy of this list is available next to the key cabinet in building 3862. 4. There is no residual radioactivity in the visit areas. If we would need to enter the supervised area, the radiation level is very low and we have dosimeters to monitor it. 5. There are also always basic risks such as falls, trips and slips. It is forbidden to climb metallic structures. In addition, many of the instruments, electronics, and other devices encountered in these areas are delicate and should only be handled by experts. We therefore ask to you stay in the areas marked for visitor access and designated by your guide and not to touch any of the equipment. 6. Eating and drinking are strictly forbidden while underground. 7. Should an alarm occur, please follow the instructions given by your guide who will conduct you to the surface using the lift.
Before the visit Before going underground Take special care with people suffering from claustrophobia or vertigo. • Warn visitors in advance that the PZ elevator is rather small and it may be uncomfortable for people afraid of closed spaces. • Warn visitors that the visitors platforms are at a certain height, in particular the LHCb upper platform, and it may be difficult for people afraid of heights. If necessary you can stay with the group on the lower platform.
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