Massachusetts college of pharmacy & health sciences radiation therapy program school of Medical Imaging & Therapeutics Contact Information



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CLINICAL SITE:______________________




COMPETENCY 4: Warm-up Procedures---Varian 6/100


The student will demonstrate the morning warm-up procedure for each

treatment unit. To be performed after the student has performed the procedure



under the direction of a clinical supervisor and is comfortable with the procedure.
EQUIPMENT UTILIZED:
PROCEDURE: S US NA

1. Place keys in the machine and turn “on”










2. Identify and rectify any machine interlock










3. Delay light appears, set timer to 9.9










4. When delay light goes off, turn key to “on”










5. Record the following readings in the log book (depending on machine)

-Mag filament voltage










-gun filament voltage










-p.s. current










-PFN voltage










-beam current










-vacuum










-beam off, 150 & 300 dose rate










-300V










-mag. filament










-mag. 1










-gun 1










-error










-doserate










-150 doserate










-focus










-centering










-gantry angle










6. After 999(888) test is completed, set 777, turn beam “on”










7. Perform lamp test reading from inside(outside) the gantry stand.










a. air pressure (PSI)










b. H2O temperature










c. primary and secondary Freon










d. explain radiation therapist responsibilities when readings

are unacceptable.












8. Check the back-up timer is set at 460










9. Perform a full field check










10. Record and assess beam quality by performing morning dosimeter readings

using PROTEA or diode checker












11. Leave room and set 200 monitor units on console.










12. Turn “on”










13. Deliver 200 mu and record the three diode readings










14. Repeat for opposite direction










15. Report to physics if readings are outside standard limits










16. Check jaw sizes---6x6, 15x15, 30x30










17. Turn on patient monitoring devices












STUDENT:___________________________
IN PERFORMING THIS PROCEDURE THE STUDENT: (Choose those which apply)

Was obviously satisfied with an unsuccessful or incomplete result




Was awkward and lacked a coordinated approach to the procedure




Proceeded rapidly but exhibited a lack of attention to detail




Was slow and deliberate




Was well paced and thorough




Exhibited dexterity, precision, and coordination




Proceeded rapidly and skillfully





CONCEPT COMPREHENSION:

Comprehension of concepts necessary for completing this task was: (Check one)

Inadequate for even basic concepts




Limited understanding of essential concepts




Adequate understanding of basic concepts




Above average understanding of basic concepts




Comprehensive knowledge of basic and advanced concepts




ADDITIONAL COMMENTS:

Student’s Signature:
Clinical Supervisor’s Signature:

8/95


Revised: 8/99

Reviewed: 8/01



STUDENT:____________________________ DATE:___________________




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