RADIOLOGICAL PROTECTION STAKES IN THE RADIOPHARMACEUTICAL INDUSTRY CISBIO International L. POIRSON - CEA P. CAPILLON – CBI E. HELLO - CBI D. PAULIN - CEA A. RATSIRAHONANA - CEA 6 th European ALARA Network Workshop « occupational exposure optimisation in the medical field and radiopharmaceutical industry » Madrid - October 23 -25 / 2002 DEN Saclay/DSP/SPR/SRP 24/10/2002 1
FACILITY • conception, manufacturing, packaging and trading of radioactive material for medical use, • about 500 workers exposed to radiation over a year, • about 150000 radioactive packages produced per year, • about 3000 TBq produced per year DEN Saclay/DSP/SPR/SRP 24/10/2002 2
PRODUCTS (1) • BULK (Thallium, Gallium, I 131) & Ir 192 • PRP: I 131, Cr 51, Er 169, Fe 59, Ga 67, P 32, Sm 153, Tl 201, Xe 133, Y 90, I 125, In 111, Re 186, FLUCIS (F 18), • trading products (NEG): I 131, I 125, Xe 133, In 111 • ELUMATIC: Mo 99 Tc DEN Saclay/DSP/SPR/SRP 24/10/2002 3
PRODUCTS (2) DEN Saclay/DSP/SPR/SRP 24/10/2002 4
PRODUCTS (3) DEN Saclay/DSP/SPR/SRP 24/10/2002 5
PRODUCTS (4) DEN Saclay/DSP/SPR/SRP 24/10/2002 6
DOSIMETRIC DATA (1) Active Dosimetric Data Recorded at CBI DEN Saclay/DSP/SPR/SRP 24/10/2002 7
DOSIMETRIC DATA (2) DEN Saclay/DSP/SPR/SRP 24/10/2002 8
RADIOLOGICAL PROTECTION STAKES • Drivers and people working in the dispatching room are the most exposed, • the maximum doses are approaching the legal limit • Effort has to be made in order to reduce their doses. DEN Saclay/DSP/SPR/SRP 24/10/2002 9
DISPATCHING ROOM PRP production chain Elumatic production chain Automatic plastic film wrapper Half cart Packages waiting Vehicles waiting DEN Saclay/DSP/SPR/SRP 24/10/2002 10
AMBIENT DOSE IN THE DISPATCHING ROOM Ambient annual dose (m. Sv) 10 m. Sv 13 m. Sv < 5 m. Sv 20 19 H 1 25 18 22 H 2 24 H 3 23 21 76 m. Sv 66 m. Sv 350 m. Sv 30 m. Sv Individual annual dose: Average dose per worker: Hall (2, 85 m. Sv ) – Driver (5, 1 m. Sv ) Maximum dose per worker: Hall (15, 2 m. Sv ) – Driver (17, 9 m. Sv ) DEN Saclay/DSP/SPR/SRP 24/10/2002 11
SOURCE OF EXPOSURE Radioactive packages • handling, packaging, scanning, transport • ambiant dose rate MOST CONTRIBUTING SITUATION ? DEN Saclay/DSP/SPR/SRP 24/10/2002 12
DRIVERS (1) Company N° 1 CBI warehouse customers other providers Company N° 2 Exclusively CBI DEN Saclay/DSP/SPR/SRP Customers, airports 24/10/2002 13
DRIVERS (2) Company N° 1 • maximum individual dose once registered 36 m. Sv (2000) and a collective dose around 45 m. Sv • difficulties to point out doses due to CBI Measures had to be taken DEN Saclay/DSP/SPR/SRP 24/10/2002 14
MEASURES TAKEN (1) ELUMATIC • Estimated collective dose reduction for the company N° 1: 9, 4 m. Sv (- 20%) • 57, 5€ invested (additional tray for the printer)to avoid 1 m. Sv. Dose reduction cannot be estimated for the person working at the production chain DEN Saclay/DSP/SPR/SRP 24/10/2002 15
MEASURES TAKEN (2) PRP • Estimated collective dose reduction for the company N° 1: 10 m. Sv (- 20%) • 83 € invested (additional printer and 10 half carts ) to avoid 1 m. Sv. Dose reduction cannot be estimated for the person working at the production chain DEN Saclay/DSP/SPR/SRP 24/10/2002 16
MEASURES TAKEN (3) • Estimated collective dose reduction for the company N° 1: None • 7600 € invested NOT REASONABLE ? Avoid bad posture leading to back injury DEN Saclay/DSP/SPR/SRP 24/10/2002 17
PENDING ACTIONS (1) • Identification and description of tasks, • links between tasks and function, • dosimetric analysis, • proposition of options leading to dose reduction • sensibility and cost analysis, The first objective is the know precisely when and how doses are received and by whom. The second objective is to provide dose reduction options related to the whole process (from order to delivery) DEN Saclay/DSP/SPR/SRP 24/10/2002 18
PENDING ACTIONS (2) Source exposure contribution analysis …… by the end of this year. DEN Saclay/DSP/SPR/SRP 24/10/2002 19
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