[Code of Federal Regulations]
[Title 10, Volume 1]
[Revised as of January 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 10CFR36.31]

[Page 617]
 
                            TITLE 10--ENERGY
 
                CHAPTER I--NUCLEAR REGULATORY COMMISSION
 
PART 36--LICENSES AND RADIATION SAFETY REQUIREMENTS FOR IRRADIATORS
--Table of Contents
 
     Subpart C--Design and Performance Requirements for Irradiators
 
Sec. 36.31  Control of source movement.

    (a) The mechanism that moves the sources of a panoramic irradiator 
must require a key to actuate. Actuation of the mechanism must cause an 
audible signal to indicate that the sources are leaving the shielded 
position. Only one key may be in use at any time, and only operators or 
facility management may possess it. The key must be attached to a 
portable radiation survey meter by a chain or cable. The lock for source 
control must be designed so that the key may not be removed if the 
sources are in an unshielded position. The door to the radiation room 
must require the same key.
    (b) The console of a panoramic irradiator must have a source 
position indicator that indicates when the sources are in the fully 
shielded position, when they are in transit, and when the sources are 
exposed.
    (c) The control console of a panoramic irradiator must have a 
control that promptly returns the sources to the shielded position.
    (d) Each control for a panoramic irradiator must be clearly marked 
as to its function.