GER Category 2 case studies
GER Category 2 · Put your knowledge to work in context.
The GER Category 2 credential is a radiation-protection certification for people who work with, supervise, or regulate radioactive sources and radiation-generating equipment in industrial settings. Candidates typically come from industrial radiography, source management, transport logistics, regulatory inspection, and radiation safety officer roles. The exam tests whether you can apply the regulatory framework and safety principles in practice, not just recall definitions. Coverage spans the regulatory and legislative basis for licensed activities, radiation protection and dose limitation, source and equipment characteristics, radiographic operational practice, emergency preparedness and response, transport and storage requirements, and quality management with record keeping. The GER Category 2 case studies are 5 cases and about 3,464 words.
1Temporary Job Site, Higher Activity, and an Uncertified Helper
On 14 March the radiation safety officer (RSO) of a small industrial radiography company reviews job files. The company licence authorizes Ir-192 sources up to 3.7 TBq and requires written notice to the regulator at least 7 days before any temporary job site away from the licensed address.
734 words, about 4 min2Monthly Dosimetry Discrepancy and Hand Exposure
A radiographer’s February TLD report shows 12.5 mSv whole-body and 38 mSv to the hand. His electronic dosimeter recorded 1.8 mSv for the month.
748 words, about 4 min3Failed Leak Test on an Ir-192 Source
The monthly wipe test of an Ir-192 sealed source (serial IR-2231, 2.2 TBq) gives 420 Bq of removable activity on the wipe. The company action level is 185 Bq.
682 words, about 3 min4Panoramic Shot, a Public Footpath and an Inadequate Barrier
A crew is radiographing a 16-inch gas pipeline tie-in with a 1.5 TBq Ir-192 source. The company procedure sets the controlled-area boundary at 100 µSv/h and the public boundary at 7.5 µSv/h.
650 words, about 3 min5Stuck Source with a Kinked Guide Tube
During a field exposure, the crank becomes hard to turn and then the source will not retract. The survey meter at 1 m from the guide tube reads 800 mSv/h; at the crank position 18 m away it reads 2.5 mSv/h.
650 words, about 3 min