TM 5-6635-386-12&P sonnel  who  enter  radioactive  storage  areas  or  operate the  tester,  or  at  other  times,  as  directed  by  the  LRPO, shall wear beta-gamma type film badges or TLD badges. The    Surgeon    General    has    determined    that    neutron dosimetry badges need not be  worn  by  personnel  using the tester. 4-16. MEDICAL    RECORDS.    The    responsibility    for preparing and maintaining DA Form 3484 (Photodosimetry  Report)  or  a  computer  equivalent  form (Dosimeter   Issue   Listing)   supplied   by   the   U.S.   Army Ionizing   Radiation   Dosimetry   Center,   is   a   function   of each unit which uses the tester. a.     The     person     responsible     for     maintaining personnel  dosimetry  records  shall  be  so  designated  in writing  (AR  40-14)  as  the  custodian  of  medical  records. The custodian shall maintain DD Form  1141  (Record  of Occupational  Exposure  to  lonizaton  Radiation),  and  DD Form    1952    (Dosimeter    Application    and    Record    of Occupational Radiation Exposure). b.   Personnel   can   obtain   the   total   amount   of radiation  to  which  they  have  been  exposed,  and  other related    data,    by    contacting    either    their    LRPO,    the custodian  of  medical  records,  or  the  Chief,  U.S.  Army Ionizing  Radiation  Dosimetry  Center,  ATTN:  AMXTM-S- LR-DN, Lexington, KY 40511-5102. STORAGE 4-17. UNOCCUPIED AREAS    a.  It  is  mandatory  that  the  testers  be  stored  in locked,   unoccupied   and   isolated   areas.   Fire   resistant structures   which   provide   protection   from   the   weather shall be used when they are available. Only work that is necessary for normal storage and maintenance procedures shall be performed in these storage areas. b. Modified Table of Organization and Equipment  (MTOE)  authorizes  one  AN/PDR-27  Radiac Set   or   equivalent   for   each   work   group   requiring   the protection of radiation monitoring. c.  An  instrument  survey,  using  the  AN/PDR-27 or  equivalent,  shall  be   performed   before   the   tester   is placed   in   a   storage   area.   This   is   done   to   determine background   radiation   level   of   the   storage   area,   thus providing    a    measurement    baseline    in    the    event    of contamination. d. An instrument survey of the area surrounding any new storage facility shall be made immediately after radioactive   material   has   been   placed   in   the   storage facility.  The  survey  shall  be  recorded,  and  shall  contain the information which is detailed in Para4-23. e.   Maximum   dose   equivalence   rate   within   the storage   area   shall   not   exceed   2.5   millirems   per   hour (mrem/hr). 4-18. OCCUPIED AREAS a.   The   number   of   testers   that   can   be   safely stored, in either occupied buildings or in occupied areas, is determined by shielding, the distance from the source and  that  part  of  the  area  which  is  occupied.  Maximum dose equivalence rates outside of storage areas that are within  occupied  buildings  and  occupied  areas  shall  not exceed 0.25 mrem/hr. b.    A    tester    which    has    been    packed    in    its approved  carrying  case  may  be  stored  in  a  supply  area or weapon storage area, providing the following requirements have been met: (1)  The  cased  tester  shall  be  locked  in  a  metal storage cabinet. (2)   The   storage   cabinet   shall   be   isolated   and located as far as possible from personnel work stations. (3)  All  required  radiation  caution  signs  shall  be displayed on the storage cabinet and on the door leading into the storage area. 4-5