Source skin distance ssd - Study guides, Class notes & Summaries

Radiation Protection in Radiography Unit 1 Exam || Questions & Answers (100% Correct) Radiation Protection in Radiography Unit 1 Exam || Questions & Answers (100% Correct) What is Ionizing radiation? - ANSWER - Radiation that produces positively and negatively charged particles (ions) What is radiation protection? - ANSWER - Effective measures employed by radiation workers to safeguard patients, personnel, and the general public from unnecessary exposure to ionizing radiation. What hap...

Review Notes for the RADIOGRAPHY EXAM Appelton Reviewer A&R Question & Answer 1 Chapter 3: Radiation Protection (150 Q & Ans.) 1. The dose of radiation that will cause a noticeable skin reaction is referred to as the (A) linear energy transfer (LET). (B) source-­‐to-­‐skin distance (SSD). (C) skin erythema dose (SED). (D) source-­‐image distance (SID). ————————————————————————— v Erythema is the reddening of skin as a resu...

Review Notes for the RADIOGRAPHY EXAM Appelton Reviewer A&R Question & Answer 1 Chapter 3: Radiation Protection (150 Q & Ans.) 1. The dose of radiation that will cause a noticeable skin reaction is referred to as the (A) linear energy transfer (LET). (B) source-to-skin distance (SSD). (C) skin erythema dose (SED). (D) source-image distance (SID). —————————————————————————  Erythema is the reddening of skin as a result of exposure to...

Nichole’s Math Board Review Exam - Questions, Answers and Explanations A patient treatment with 2 fields separated by 120 degrees, likely needs a ____ degree wedge inserted for even dose distribution. 30 degrees Use the hinge angle formula. A patient is treated using the SAD technique on a 100cm isocentric linac. The field size is 24 x 20. The iso is located 5cm below the patient's skin surface. What does the field measure on the patient's skin? 23 x 19 Use direct proportion. Adjacent field...

Grenz - Answer--10-15 kVp -used for benign skin conditions contact - Answer--applicators in direct contact with treatment area -used for rectal (RT 50-kVp) and skin cancers superficial - Answer-- 50-150 kVp - SSD was typically 15-20 cm source to skin distance with cone in contact with lead cut-out or skin orthovoltage - Answer-- 200-300 kVp -most common SSD was 50 cm -cones used to collimate beam dmax - Answer--the depth of dmax is directly related to the energy of the beam -f...

Definitions for Dosimetry Exam 1 Question and answers 100% correct 2023Depth - depth of calculation point Energy - penetrating power of beam Density - the type of tissue the beam penetrates - correct answer What does Dose delivery depends on: distance from the radiation source to the skin surface; - correct answer SSD (source to skin distance) distance from the tube to the skin surface - correct answer TSD (tube to skin distance) the size of the field on skin - correct an...

The process of selective removal of lower energy photons, that add nothing to the quality of the image, from the x-ray beam. - Answer-Filtration This form of filtration is built into the design of the x-ray tube. - Answer-Inherent This form of filtration is placed above the collimator shutters. - Answer-Added Radiographic x-ray tubes, capable of generating 70 kVp or greater, must have a minimum, total filtration of 2.5 mm Al/equivalent. True or false? - Answer-True Which shields are ...

The technologist chooses to use a grid for an exam. What effect will this have on the patient exposure while ensuring proper image quality? - Answer-increase patient exposure Which of the following projections would result in a young female patient receiving a significantly lower dose to her breast tissue during a scoliosis x-ray? - Answer-Posteroanterior (PA) What is the most effective and often used material in protective barriers? - Answer-Lead Which of the following should be avoide...

Triangulation - Answer-Treatment isocenter is located relative to three setup coordinates on the patient's surface or on the equipment fixed relative to their anatomy Isocenter - Answer-point of intersection of the three axes of rotation (gantry, collimator, and base of couch) of the treatment unit X, Y, and Z planes - Answer-a 3D coordinate system; X is the transverse axis that extends right to left, Y is the longitudinal axis extending head to foot, Z is the axis extending upward ...

Radiographer A radiologic technologist who administers ionizing radiation to perform radiographic procedures. They produce radiographic procedures at the request of a physician. Radiologic technology a health care profession that includes all diagnostic imaging technologists and radiation therapists. Radiographers must evaluate an image for _______ quality, _______, and _________ relative to the diagnosis or the reason for the procedure. technical, accuracy, appropriateness ALARA As Low A...