Air-kerma, entrance surface - Revision history

Karen Clement at 17:31, 12 September 2019

2019-09-12T17:31:54Z

Karen Clement at 17:31, 12 September 2019

2019-09-12T17:31:46Z

Intern at 15:41, 11 June 2019

2019-06-11T15:41:31Z

Intern at 15:41, 11 June 2019

2019-06-11T15:41:21Z

Intern: Created page with "The air kerma on the central x-ray beam axis at the point where the x-ray beam enters the patient. The contribution of backscatter radiation is included through backscatter fa..."

2019-06-06T17:50:56Z

Created page with "The air kerma on the central x-ray beam axis at the point where the x-ray beam enters the patient. The contribution of backscatter radiation is included through backscatter fa..."

New page

The air kerma on the central x-ray beam axis at the point where the x-ray beam enters the patient. The contribution of backscatter radiation is included through backscatter factor (B), thus:

<div style='text-align: center;'>
<math>K_e= B⋅K_i</math>
</div>

The unit for entrance surface air kerma is the Gy. Entrance surface air kerma Ke can be calculated from incident air kerma <math>K_i</math> using suitable backscatter factor B, or determined directly using small dosimeters (thermoluminescent or semiconductor) positioned at the representative point on the skin of the patients. (Adapted from [[ICRP Publication 117]], 2010)

''[[ICRP Glossary]] entry - May 2019''

← Older revision		Revision as of 17:31, 12 September 2019
Line 6:		Line 6:

	The unit for entrance surface air kerma is the Gy. Entrance surface air kerma <math>K_e</math> can be calculated from incident air kerma <math>K_i</math> using suitable backscatter factor <math>B</math>, or determined directly using small dosimeters (thermoluminescent or semiconductor) positioned at the representative point on the skin of the patients. (Adapted from [[ICRP Publication 117]], 2010)		The unit for entrance surface air kerma is the Gy. Entrance surface air kerma <math>K_e</math> can be calculated from incident air kerma <math>K_i</math> using suitable backscatter factor <math>B</math>, or determined directly using small dosimeters (thermoluminescent or semiconductor) positioned at the representative point on the skin of the patients. (Adapted from [[ICRP Publication 117]], 2010)
−

	''ICRP Glossary entry - May 2019''		''ICRP Glossary entry - May 2019''

← Older revision		Revision as of 17:31, 12 September 2019
Line 8:		Line 8:


−	''[[ICRP Glossary]] entry - May 2019''	+	''ICRP Glossary entry - May 2019''
		+
		+
		+	'''Return to [[ICRP Glossary\|Glossary]]'''

@@ Line 5: / Line 5: @@
 </div>
-The unit for entrance surface air kerma is the Gy. Entrance surface air kerma <mathm>K_e</math> can be calculated from incident air kerma <math>K_i</math> using suitable backscatter factor <math>B</math>, or determined directly using small dosimeters (thermoluminescent or semiconductor) positioned at the representative point on the skin of the patients. (Adapted from [[ICRP Publication 117]], 2010)
+The unit for entrance surface air kerma is the Gy. Entrance surface air kerma <math>K_e</math> can be calculated from incident air kerma <math>K_i</math> using suitable backscatter factor <math>B</math>, or determined directly using small dosimeters (thermoluminescent or semiconductor) positioned at the representative point on the skin of the patients. (Adapted from [[ICRP Publication 117]], 2010)
 ''[[ICRP Glossary]] entry -  May 2019''

@@ Line 1: / Line 1: @@
-The air kerma on the central x-ray beam axis at the point where the x-ray beam enters the patient. The contribution of backscatter radiation is included through backscatter factor (B), thus:
+The air kerma on the central x-ray beam axis at the point where the x-ray beam enters the patient. The contribution of backscatter radiation is included through backscatter factor (<math>B</math>), thus:
 <div style='text-align: center;'>
@@ Line 5: / Line 5: @@
 </div>
-The unit for entrance surface air kerma is the Gy. Entrance surface air kerma Ke can be calculated from incident air kerma <math>K_i</math> using suitable backscatter factor B, or determined directly using small dosimeters (thermoluminescent or semiconductor) positioned at the representative point on the skin of the patients. (Adapted from [[ICRP Publication 117]], 2010)
+The unit for entrance surface air kerma is the Gy. Entrance surface air kerma <mathm>K_e</math> can be calculated from incident air kerma <math>K_i</math> using suitable backscatter factor <math>B</math>, or determined directly using small dosimeters (thermoluminescent or semiconductor) positioned at the representative point on the skin of the patients. (Adapted from [[ICRP Publication 117]], 2010)
 ''[[ICRP Glossary]] entry -  May 2019''