[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: 10CFR36.33]

[Page 617-618]
 
                            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. 36.33  Irradiator pools.

    (a) For licenses initially issued after July 1, 1993, irradiator 
pools must either:
    (1) Have a water-tight stainless steel liner or a liner 
metallurgically compatible with other components in the pool; or
    (2) Be constructed so that there is a low likelihood of substantial 
leakage and have a surface designed to facilitate decontamination. In 
either case, the licensee shall have a method to safely store the 
sources during repairs of the pool.
    (b) For licenses initially issued after July 1, 1993, irradiator 
pools must have no outlets more than 0.5 meter below the normal low 
water level that could allow water to drain out of the pool. Pipes that 
have intakes more than 0.5 meter below the normal low water level and 
that could act as siphons must have siphon breakers to prevent the 
siphoning of pool water.
    (c) A means must be provided to replenish water losses from the 
pool.
    (d) A visible indicator must be provided in a clearly visible 
location to indicate if the pool water level is below the normal low 
water level or above the normal high water level.
    (e) Irradiator pools must be equipped with a purification system 
designed to be capable of maintaining the water

[[Page 618]]

during normal operation at a conductivity of 20 microsiemens per 
centimeter or less and with a clarity so that the sources can be seen 
clearly.
    (f) A physical barrier, such as a railing or cover, must be used 
around or over irradiator pools during normal operation to prevent 
personnel from accidentally falling into the pool. The barrier may be 
removed during maintenance, inspection, and service operations.
    (g) If long-handled tools or poles are used in irradiator pools, the 
radiation dose rate on the handling areas of the tools may not exceed 
0.02 millisievert (2 millirems) per hour.