Project Directors

Project Directors must qualify as Principal Investigators (PI). This privilege is limited to faculty or certain senior research associates, or their equivalents at the VAPAHCS and the other institutes operating under the university license.

Access for inspection

Health Physics typically schedules inspections to avoid interrupting the laboratory calendar. However Health Physics must have access to laboratories at any time to observe work and perform radiation surveys.

Security

Regulatory agencies require a high degree of security to prevent unauthorized access to and use of radiation sources. At Stanford, radiochemical stock solutions and sealed sources greater than C‐level (see Table 3.2) must be stored under lock. In new open architecture buildings, such as CCSR or Clark, all stock vials must be stored under lock. At VAPAHCS, all licensed material, whether it is stock, in use, or waste, must be stored under lock. Radiation devices must be locked out at the console. Do not prop security doors open.

Liquid scintillation cocktail

The APRS recommends biodegradable liquid scintillation cocktail (LSC). Special application and authorization is required for non‐biodegradable cocktail. If it a non‐ biodegradable cocktail is necessary, explain why in the application section that discusses materials or instrumentation.

Mixed waste

Discarding mixed radiologic and chemical hazardous waste is expensive. Make every effort to reduce or eliminate its generation. Special authorization is required prior to generating mixed waste. See pages 36, 55, and 58.

Permitting procedures for radioactive materials

Permitting procedures for radioactive materials require a Controlled Radiation Authorization (CRA) issued by a Local Control Committee (LCC).

There are two LCCs. The Clinical Radiation Safety Committee (CRSCo) reviews all procedures that involve administration of ionizing radiation to humans. The Non‐ Human Use Radiation Safety Committee (NHRSC) reviews laboratory use of radiochemicals and radiation producing machines within Stanford and VAPAHCS.

μCi μCi μCi
H‐3 1000 Co-57 100 Tc‐99m 1000
C-14 100 Co‐60 1 In‐111 100
F-18 1000 Ni‐63 100 Sn‐113 100
Na‐22 10 Zn‐65 10 I‐123 100
P‐32 10 Zn-69 1000 I‐125 1
P‐33 100 Ga‐67 1000 I‐131 1
S-35 100 Se‐75 100 Xe‐133 1000
Cl‐36 10 Rb‐86 100 Cs‐137 10
Ca‐45 100 Sr‐85 100 Hg‐203 100
Cr‐51 1000 Y‐88 10 Tl‐201 1000
Fe‐55 100 Y‐90 10 Ra‐226 0.1

TABLE 3.1 QLM QUANTITIES. This table provides the quantities of licensed material (QLM) requiring labeling for the most commonly used radionuclides. For other radionuclides, use the values in Quantities of Licensed Material Requiring Labeling.