FINAL DRAFT 2-29-96
Revised 10/96
Narrative
Information Management Systems
The engineers/designers should verify the actual
Information Management Systems shall include
number of people and the air conditioning load
elements of image retrieval / processing /
to agree with the project requirements.
storage,
treatment
planning,
patient
registrations, patient charges, Physicians order
The percent of outside air should be based on
entry, and patient / staff movement.
the space total supply air quantities which will
have to be coordinated with the equipment
These systems elements will require access to
vendor.
the main facility's "information backbone" as well
as the departmental local area network. All
Air Quality and Distribution
components should be planned for compatibility.
In general, clean areas shall have positive air
pressure and soiled areas should have negative
Radiation Therapy Systems
air flow with respect to the adjoining areas.
Radiation Imaging Systems requirements are
defined in VA Handbook 7610, Space Planning
Corridors should not be used to supply or to
Criteria Chapter 277 - Radiation Therapy
exhaust/return air from rooms. Corridor air may
Service.
be used to ventilate open waiting rooms,
bathrooms, toilet rooms, hacs and utility closets
Film Processing
opening directly on corridors. Exfiltration from
positive/negative pressure rooms that exit to a
Film processing requirements will vary for each
corridor should be considered part of that
facility. Design criteria for "cut film", "digital
corridor air supply or return/exhaust.
laser" and the integrated use of Picture
Archiving and Communications Systems,
The transferred air required to maintain an area
(PACs) will be as directed by VA program
negative or positive is listed in the room design
officials.
standard sheet.
Heating, Ventilation and Air
The transfer air nevertheless, should not be less
Conditioning
than 50 CFM and no more than 150 CFM per
undercut door.
Operation
Care should be taken to minimize the short
Air conditioning systems should be provided to
circuiting of air between supply and
heat, cool and ventilate the individual space, as
return/exhaust openings in interior spaces.
required to satisfy the VA design criteria.
Exhaust System
The air conditioning systems serving the
Radiation Therapy Service should be designed
A dedicated exhaust system should be provided
to operate to the requirements of the
for all hoods located in the Radiation Therapy
engineering control center.
Service. Additionally, we recommend that the
supply diffusers be located as far away from the
Additionally, the air conditioning systems serving
hood sash opening as possible, and its selection
the Radiation Therapy Services should be
be based on very small throw (Oversized
equipped with either waterside or airside
perforated diffuser is recommended).
economizer type. Climate often dictates which
economizer type should be considered.
Capacities
The number of people and the air conditioning
load noted on the room design standard sheet is
for purpose of establishing a basis for design
planning.
VA DESIGN GUIDE
RADIATION THERAPY SERVICE
PAGE 2-6
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