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Radioactive Materials at SSRLContact Information
SSRL Safety Officer - Matt Padilla (650)926-3861
Throughout the course of an SSRL Experimental Run, there are requests from users to transport and use small amounts of radioactive material in their experiments, either as stand alone samples or in a matrix of other materials. The purpose of this procedure is to enable Users, SSRL and SLAC staff to know what radiological controls will be implemented for these materials, based on the isotope, its toxicity risk and radiological controls. Radioactive materials at SSRL are classified into 4 classification Groups based on the radiotoxicity tables, see attached. Radiological Controls for the conduct of experiments is contained in SLAC/SSRL A SLAC/SSRL document should be reviewed for discussion of radiological controls, SSRL Radioactive Material Experiments Radiological Work Controls SLAC - I - 82B - 00100 - 001. This document is available upon request. Containment of samples-All containment designs shall be approved by the SSRL Radioactive experiment review committee. Many containment designs have been previously approved and do not need re approval. (see containment design table for previously approved containment designs). New sample holder designs/changes not shown in the SSRL Radioactive Sample Holders Catalog must be submitted to SSRL's Safety Officer, Matt Padilla, mpadilla@slac.stanford.edu, for review and approval prior to shipment to SSRL. Allow 90 days for approval.
Any divergence from this protocol requires further review and approval. For questions or assistance with this procedure, call: Matt Padilla, SSRL Safety Office (650) 926-3861 Jim Allan, SLAC Radiation Protection Field Operations (RPFO) (650) 926-4064 Carol Morris, SLAC Radiation Protection Field Operations (RPFO) (650) 926-3023 1. Packaging and Transportation:
All hazardous materials, including radioactive materials, shipped to or from
SSRL shall be packaged and handled according to U.S. Department of Transport
regulations (via highway) or IATA Dangerous Goods Regulations (via aircraft or
from overseas). Shipments that fail to comply with these federally mandated
regulations will be returned to the Users home institution unopened.
All radioactive material packages, REGULATED and UNREGULATED, shall be
addressed to: Stanford Linear Accelerator Center, for SSRL_User name proposal
number (______), Radiation Protection, Bldg 24, Menlo Park, Ca 94025. USA, 650.926.4299.
When sending Specification packages (Type A, Type B), include the documentation
of the package certification with the shipment or under separate cover.
When received, packages will be checked for damage and surveyed for external radiation and contamination. This material will be inventoried and then released to its custodian/user for experiments at SSRL. All radioactive material leaving SSRL shall be sent back to the Users home institution by RPFO and samples will be removed from the facility Radioactive Material inventory. SSRL is strictly limited to the quantities of radioactive material allowed at its facility at any one time, Users must inform the SSRL Safety Office and RPFO of the exact isotopes and quantity of each isotope to be shipped. If shipments arrive at SLAC and the quantity of radioactive material originally specified has been exceeded, samples may be returned to the Users home institution unopened or experiments may be delayed. Samples should be delivered to SLAC in their final containment* configuration. * Containment is the SLAC/SSRL Approved physical barrier(s) or barriers required to be in place that prevent the release of material. 2. Training:
SLAC, in accordance with 10CFR835 (Code of Federal Regulations) and SLAC/SSRL
local procedures requires that all individuals working with or around
radioactive materials are required to complete a level training commensurate
with:
Please have documentation of training record with completion date. Training must have been completed within 2 years. This may be expedited if documentation is sent (fax (650)926-2837, the training coordinator at SSRL may also be able to contact your parent laboratory however this may delay your ability to acquire dosimetry. At the completion of this training, you will be issued a SLAC/SSRL Identification badge and dosimeter. 3. Sample PreparationAlthough SSRL prefers that samples come already prepared upon arrival, we have anticipated that some Users will request the ability to perform limited sample preparation of radioactive materials during their stay here. All proposals of this nature are reviewed on a case by case basis. If sample preparation is allowed then the following provisions shall be employed to manage materials and the risks associated with such activities: Protective clothing shall be worn when working with radioactive materials as directed by RPFO. All sample preparation shall be performed in a glove bag or other enclosed system (containment set up) which should be placed on absorbent paper or material in case of a spill or leak. The containment set up should vent through a HEPA filter. All radioactive material containers shall be surveyed for contamination both entering and leaving the glove bag. RPFO will provide signage for the area with the appropriate caution or warning "Radioactive Material" signs and a contact telephone number. Contamination surveys of the preparation area will be performed daily by RPFO. All radioactive material, including any contaminated solids (i.e. glove bag, sample holders, wipes etc.) shall be returned to the Users home institution. A survey meter for radiological monitoring will be made available to the User, along with the requisite instructions for its use and operation. It should be used each and every time radioactive materials are handled in the containment set up. 4. Radioactive Materials at SSRL BeamlinesAfter materials have been surveyed and inventoried by RPFO, they will be transferred to the User at SSRL. Whilst at the beamlines, samples need to be controlled in the following manner: All samples are to be labeled as radioactive materials and have a unique identification number. Samples not in use shall be stored in either in the beam hutch or designated storage facility. Beamlines will be posted with appropriate Radiological Signs by RPFO. Pre and post experiment contamination surveys of the work area will be performed by RPFO at the beamline. 5. Radiological controls
Note: On frequent occasions at SSRL, a Continuous Air Monitoring (CAM) system is used to provide personnel with an early warning of a spill or release. Emergency response procedures for use when using CAM's for experiments will be posted at the beamline. Very High Radiotoxicity (Group 1)
High Radiotoxicity (Group 2)
Moderate Radiotoxicity (Group 3)
Low Radiotoxicity (Group 4)
Procedure for submitting sample information to SSRL At a minimum, thirty (30) days before the start of your experiment you need to advise the SSRL Safety Office of the maximum quantity of radioactive sample material you would like to send, the isotopic composition, and the type of containment design to be utilized. Refer to the link http://www-group.slac.stanford.edu/esh/rp/fo/SSRLsampleholderscatalog.pdf http://www-ssrl.slac.stanford.edu/safety/30_day.pdf. Each isotope should be reported in grams, Becquerel's or curies. This gives SLAC a total upper limit of material onsite and allows time to define and configure its radioactive material storage areas, such that SLAC remains in compliance with standards for a Hazard Category III facility in DOE-STD-1027-92. At a minimum, (7) days before the start of your experiment you need to advise the SSRL Safety Office of the exact quantity of radioactive sample material being sent and the isotopic composition. http://www-ssrl.slac.stanford.edu/safety/7_day.pdf The sample shipping information sheet and sample checklist can be used for this purpose. When the samples are shipped to SSRL, the sample shipping information "http://www- ssrl.slac.stanford.edu/safety/multi_sample.pdf (1-Day Notice) and sample checklist http://www-ssrl.slac.stanford.edu/safety/notification_shipment.pdf should be submitted to the SSRL Safety Office. Please have your facility shipping department include performance packaging specifications for Type A and Type B shipments per DOT 49CFR 173.415. Also provide with radioactive material license and radiation safety contact at originating lab for the return of samples. The 1-Day Notice gives a break down of sample holder, sample description and isotope(s) of the sample in grams, Becquerel's or curies and its chemical form as well as information about the integrity of the primary and secondary containers. Select the Sample Holder type for each sample holder sent to SSRL. Only previously approved sample holders may be set by Users. For non-approved sample holders contact SSRL Safety Officer The shipping paper or bill of lading must contain the name of the experimenter to whom the package is being sent and proposal #. The proper shipping address is as follows:
Appropriate forms can be found at the following web address, http://www.ssrl.slac.stanford.edu/Safety/
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