TITLE 32:  ENERGY
                  CHAPTER II:  DEPARTMENT OF NUCLEAR SAFETY
                     SUBCHAPTER b:  RADIATION PROTECTION

                                  PART 390
                            PARTICLE ACCELERATORS


Section
390.10      Scope
390.20      Definitions
390.30      Operating Procedures and Instructions
390.40      Equipment Controls
390.50      Radiation Monitoring
390.60      Radiation Surveys
390.70      Minimum Training of Particle Accelerator Operators

AUTHORITY:  Implementing and authorized by the Radiation Protection Act (Ill.
Rev. Stat. 1981, ch. 111�, pars. 211 et seq.).

SOURCE:  Filed and effective April 20, 1974, by the Department of Public
Health; transferred to the Department of Nuclear Safety by P.A. 81-1516,
effective December 3, 1980; codified at 7 Ill. Reg. 11281.

Section 390.10  Scope

Except as otherwise specifically provided, this Part applies to all persons
who develop, manufacture, receive, possess, use, own, or acquire accelerators.
The provisions of this Part are in addition to, and not in substitution for,
other applicable provisions of Department regulations.  See 32 Ill. Adm. Code
360 for applicable regulations concerning particle accelerators for medical
therapeutic applications.

Section 390.20  Definitions

     a)    "Accelerator Facility" means the location at which one or more
           particle accelerators are installed within one building or under
           one roof and are operated under the same administrative control.

     b)    "Particle Accelerator" means any device other than an x-ray
           machine which emits ionizing radiation as a result of the
           acceleration of charged particles.  Examples - cyclotrons,
           betatrons, electron linear accelerators, and potential drop
           accelerators.

Section 390.30  Operating Procedures and Instructions

     a)    Each registrant shall inform individuals working in or frequenting
           any portion of a restricted area as to the presence of radiation
           or particle accelerators; instruct such individuals in safety
           problems associated therewith and in precautions or procedures to
           minimize radiation exposure; instruct such individuals in the
           provisions of Department regulations for the protection of
           personnel from exposures to radiation; and shall advise such
           individuals of reports of radiation exposure which those
           individuals may request pursuant to this Part.

     b)    Each particle accelerator facility shall be under the
           administrative control of a radiation protection officer or
           radiation safety committee who will be responsible for the safe
           operation of the accelerator.

     c)    Written operating and emergency procedures as well as specified
           safety rules shall be established for each accelerator facility
           and approved by the radiation protection officer.

     d)    Operators and maintenance personnel shall be familiar with and
           have available a copy of the written operating and emergency
           procedures.

     e)    No individual shall be permitted to act as an "Operator" of an
           accelerator until such person has received at least the minimum
           training specified in Section 390.70.

     f)    Modification, repairs, or preventive maintenance on accelerator
           components or safety interlocks may be performed only by or under
           the direct supervision of persons who have received at least the
           minimum training specified in Section 390.70.

     g)    Provisions shall be made at each accelerator control console to
           display the operator's name.  Only the operator whose name is
           displayed may turn on the accelerator or open entrances to High
           Radiation Areas.

     h)    The radiation safety officer shall maintain a current list of all
           operators and technical personnel who are qualified to service the
           particle accelerator.

     i)    No registrant shall permit a particle accelerator to operate at
           any time with a safety interlock bypassed, except for necessary
           testing.  Upon such circumvention of an interlock, the registrant
           shall maintain records showing the date and reasons for bypassing
           the interlock.  A sign shall be posted at the personnel entrance
           door being bypassed and this condition terminated as soon as
           possible.

     j)    Additional Requirements - This Department may, by rule,
           regulation, or order impose upon any registrant such requirements
           in addition to those established in this Part, as it deems
           appropriate or necessary to minimize danger to public health and
           safety or property.

Section 390.40  Equipment Controls

     a)    All meters and controls on the accelerator control console shall
           be clearly identified and easily discernible.  Accelerator control
           consoles shall be equipped with a keyswitch or other device which

           will render the console inoperative when the key or device is
           removed.  Only one key shall be available to the operating crew.

     b)    All entrances into a target room or other high radiation area
           shall be provided with a minimum of two personnel interlocks.

     c)    The interlock system shall be designed to prevent restarting of
           the accelerator without manually resetting the accelerator "ON"
           switch at the control console after the tripping of a shielding
           interlock or a power failure.  At the time of such an occurrence,
           the registrant is required to resurvey the radiation area prior to
           reactivation of the accelerator.  Records documenting the
           circumstances surrounding such occurrences shall be maintained for
           review by this Department.

     d)    A scram or panic button or other emergency power cut-off switch
           shall be located and easily identifiable in all accessible high
           radiation areas.  A visible and/or audible signal system shall be
           installed within the protective enclosure which will be activated
           a reasonable length of time before the power to the accelerator
           can be activated.

     e)    Electrical circuit diagrams of the accelerator and the associated
           interlock system shall be kept current and on file at each
           accelerator facility.

     f)    All safety and warning devices, including interlocks, shall be
           checked and appropriately serviced each month.  A log and written
           records of these tests shall be kept by the registrant and made
           available for inspection by the Department.

Section 390.50  Radiation Monitoring

     a)    Portable radiation monitoring equipment must be properly
           maintained and available at the accelerator facility.  An
           appropriate radiation monitor shall be used for all accelerator
           target rooms and other high radiation areas.  This monitor shall
           be one or more of the following:

           1)    An area monitor with an easily observable indicator located
                 near the entrance that warns of radiation levels above a
                 predetermined limit;

           2)    A personal radiation monitor of this "chirpie" type worn
                 while in the room;

           3)    A portable survey instrument carried into the room; or

           4)    A monitor approved by the Department.

     b)    No registrant shall permit any person to enter a restricted area
           unless each person wears a film badge and a pocket dosimeter.
           Pocket dosimeters shall be capable of measuring doses from zero to
           at least 200 milliroentgens.  A film badge shall be assigned to
           and worn by only one person and shall be capable of registering 10
           Roentgens or greater.

Section 390.60  Radiation Surveys

     a)    The registrant shall maintain sufficient calibrated and operable
           radiation survey instruments to make physical radiation surveys as
           required by the Department.  Each radiation survey instrument
           shall be checked every three months and calibrated once a year.
           After each instrument servicing, a record shall be maintained of
           the latest response check or calibration date.

     b)    Before a new accelerator with its associated components is placed
           in routine operation, a radiation protection survey shall be made
           by a qualified expert and a copy of the results submitted to the
           Department.

     c)    The area surrounding a particle accelerator and associated
           components shall be surveyed at intervals not to exceed three
           months.  A record shall be made of the accelerator operating
           conditions and radiation levels measured at specific control
           points.  These control points must be well defined and reported on
           at least four consecutive surveys.  One of these control points
           must be at the normal work station of the operator.  These records
           shall be made available for inspection by the Department.

Section 390.70  Minimum Training of Particle Accelerator Operators

     a)    All operators shall be instructed in the fundamentals of radiation
           safety including:

           1)    Characteristics of beta, gamma and x-radiation.

           2)    Units of radiation dose (mrem).

           3)    Hazards of excessive exposure to radiation.

           4)    Levels of radiation from particle accelerators.

           5)    Methods used to prevent radiation exposure at the specific
                 facility to be operated:

                 A)    Shielding;

                 B)    Interlock system;

                 C)    Safety rules;

                 D)    Radiation monitoring equipment.

     b)    All operators shall be instructed on the use and care of personnel
           monitoring equipment employed at the facility.

      c)    All operators shall be familiar with the location and use of all
           operating controls.

     d)    All operators shall be familiar with the requirements of pertinent
           State regulations.

     e)    All operators shall be familiar with the registrant's written
           operating and emergency procedures.

     f)    All operators shall receive at least one month of on-the-job
           training before assuming operational responsibility.

     g)    All operator's assistants or helpers shall receive the training
           listed in paragraphs (a) through (e) of this Section.

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