N.J. Admin. Code § 7:28-17.8

Current through Register Vol. 56, No. 21, November 4, 2024

Section 7:28-17.8 - Shielded room radiography

(a) No person shall operate or permit the operation of any ionizing radiation-producing machine used in shielded room radiography unless the equipment, installation, and personnel meet the requirements of 7:28-17.1 through 17.6 and this section.

(b) No person shall operate or permit any person to operate an ionizing radiation-producing machine used in shielded room radiography until such operator has completed the following requirements:

1. The operator has met the requirements of 7:28-17.5;

2. The operator has received a copy of and instruction in N.J.A.C. 7:28-1 through 7:28-13 and 7:28-17 and a copy of the owner's operating and emergency procedures as required by 7:28-17.5(d) and has demonstrated an understanding of the procedures and regulations by written examination given by a qualified individual; and

3. The operator has demonstrated competence to operate appropriate safety systems.

(c) Each owner shall supply appropriate personnel monitoring equipment and shall require that it be used by every individual who operates, makes "set-ups," or performs maintenance on an ionizing radiation-producing machine used in shielded room radiography.

(d) The enclosed room in which shielded room radiography is conducted shall be shielded so that no location on the exterior exceeds the radiation levels and limits established in N.J.A.C. 7:28-6. No industrial radiography shall be conducted in a shielded room until a radiation survey is first made to insure compliance with these radiation levels and limits. A record of this survey shall be maintained and a copy shall be available for inspection by the Department.

(e) No person shall enter an enclosed room in which shielded room radiography is performed until after a physical radiation survey is conducted to determine whether the ionizing radiation producing machine is off. A record shall be maintained of the date and exposure rate measured for each physical radiation survey and shall be made available for inspection by the Department.

(f) The radiation surveys required in (d) and (e) above shall be made with a radiation survey instrument measuring radiation at the energies and at the exposure rates to be encountered. This instrument shall have an operational check source test conducted prior to each use and shall be calibrated at intervals not to exceed one year and shall be recalibrated after each servicing other than a battery replacement. Records shall be maintained of each date of calibration and the daily operational check and shall be made available for inspection by the Department.

(g) Adequate methods shall be provided to restrict the access of personnel and the public to any and all shielded room radiography areas to prevent the exposure of any person to radiation in excess of the level limits of N.J.A.C. 7:28-5, 7:28-6 and 7:28-17. No person is permitted to remain within the enclosed room where shielded room radiography is being performed.

(h) All ionizing radiation-producing machines used in shielded room radiography and all objects exposed thereto shall be confined within an installation or structure designed or intended for radiography and in which radiography is regularly performed in accordance with the following requirements:

1. A reliable interlock or other mechanism shall be installed at each means of access to the shielded room which will turn off the source(s) of radiation if a person tries to enter or open the door to the shielded room.

2. A door-fastening mechanism shall be installed so that the door to the shielded room can be opened from the inside at all times in case of emergency.

3. A visible and audible signal alarm system shall be installed within the shielded room which will be actuated at a reasonable length of time before the power to the radiation source can be activated which enables persons in the vicinity of the shielded room to take appropriate protective actions.

4. One or more scram or emergency buttons shall be installed at a highly visible and easily accessible location or locations within the shielded room that will terminate the power to the source of radiation. This scram or emergency button shall be installed so that it shall require manual resetting before the power to the source of radiation can be reactivated.

5. Each source of radiation used in shielded room radiography shall be provided with a lock at the control panel to prevent unauthorized use of the source.

6. If more than one source of radiation is used in the same shielded room, all such sources of radiation shall meet the requirements of 1-5 above.

N.J. Admin. Code § 7:28-17.8

New Rule, R.1985 d.502, effective 10/7/1985.
See: 17 N.J.R. 1626(a), 17 N.J.R. 2389(a).
Amended by R.2008 d.281, effective 9/15/2008 (operative September 30, 2009).
See: 40 N.J.R. 2309(a), 40 N.J.R. 5196(b), 41 N.J.R. 3415(a).
In (a), in the introductory paragraph of (b) and in (c), deleted ", radiographic-exposure device, or sealed source" following "machine"; in (a), deleted "7:28-" preceding "17.6" and substituted "this section" for "7:28-17.8; in (e), deleted "or the radiographic-exposure device or the sealed source is in the shielded or "off" position"; and in (h), deleted ", radiographic-exposure devices, or sealed sources".