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X-RAY EMISSIONS

 
  
 
References to Consult Concerning Radioactive Tubes The   following   is   a   basic   list   of   publications conerning the handling and use of radioactive tubes. Department  of  Defense  Hazardous  Materials Information System (HMIS), DOD 6050.1-L R a d i a t i o n    H e a l t h    P ro t e c t i o n    M a n u a l , NAVMED P-5055 Afloat Supply Procedures,  NAVSUP P-485 EIMB, General EIMB, Radiac Safety Precautions for Forces Afloat Naval Ships’ Technical Manual, Chapter 400 Technical Assistance For   technical   assistance   and   advice   regarding identification,   stowage,   or   disposal   of   radioactive tubes, contact: Officer In Charge Naval Sea Systems Command Detachment Radiological Affairs Support Officer (NAVSEADET, RASO) Naval Weapons Station Yorktown, VA 23691-5098 X-RAY EMISSIONS X-rays   may   be   produced   by   high-voltage electronic   equipment.   X-rays   can   penetrate   human tissue   and   cause   both   temporary   and   permanent damage.  Unless  the  dosage  is  extremely  high,  there will be no noticeable effects for days, weeks, or even years after the exposure. The sources of these x-rays are usually confined to magnetrons, klystrons, and CRTs. Where these types of components are used, you should not linger near any equipment on which the equipment covers have been removed.  Klystrons,  magnetrons,  rectifiers,  or  other tubes  that  use  an  excitation  of  15,000  volts  or  more may emit x-rays out to a few feet, thus endangering you or   other   unshielded   personnel   standing   or   working close to the tubes. If   you   must   perform   maintenance   on   x-ray emitting devices, take the following precautions:    Observe   all   warning   signs   (fig.   3-9)   on   the equipment   and   all   written   precautions   in   the equipment technical manual.    Do   NOT   bypass   interlocks   that   prevent   the servicing of operating equipment with the x-ray shield   removed,   unless   the   technical   manual requires you to do so.    Be sure to replace all protective x-ray shielding when you finish the servicing. Q10.    W h a t    p u b l i c a t i o n    g i v e s    b a s i c    c l e a n u p procedures for a broken, radioactive tube? SUMMARY This chapter has presented radar safety measures you are expected to practice in your daily work.    As with   electrical   and   electronic   safety,   the   greatest danger you will face as a Fire Controlman is becoming too  familiar  with  the  safety  hazards  you  will  face. COMPLACENCY KILLS!  Radio frequency energy is not  the  only  hazard  associated  with  working  around radar.    Working aloft has its own set of hazards.    Be 3-17 CAUTION X-RAY Figure 3-9.—X-ray caution label.

   


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