South Carolina Code of Regulations › Chapter 61 - DEPARTMENT OF HEALTH AND ENVIRONMENTAL CONTROL › Subchapter 61-64 - X-Rays (Title B) › Part V - QUALITY STANDARDS AND CERTIFICATION REQUIREMENTS FOR FACILITIES PERFORMING MAMMOGRAPHY › Appendix 61-64.V.C - Mammography Dose Evaluation Tables

Current through Register Vol. 48, No. 6, June 28, 2024
These tables are used to determine the mean glandular dose in
				  milligrays delivered by 25.9 mC/kg (or millirad) delivered by one Roentgen (1
				  R) in air incident on a 4.2 centimeter thickness compressed breast of average
				  density (fifty percent (50%) adipose and fifty percent (50%) glandular tissue).
				  Linear extrapolation or interpolation shall be made for any HVL not listed. To
				  convert from entrance exposure in air in roentgens to mean glandular breast
				  dose in millirads, multiply the entrance exposure by the factor shown in the
				  table for the appropriate kVp and beam quality (HVL) combination.
GLANDULAR DOSE (IN mrad) FOR 1 ROENTGEN ENTRANCE EXPOSURE TO
				  A 4.2-CM BREAST THICKNESS---50% ADIPOSE 50% GLANDULAR BREAST TISSUE---USING A
				  Mo/Mo TARGET-FILTER COMBINATION*
X-ray Tube Voltage (kVp)
W/Al
Target-Filter
HVL
23
24
25
26
27
28
29
30
31
32
33
Combination
0.23
116
0.24
121
124
0.25
126
129
131
0.26
130
133
135
138
0.27
135
138
140
142
143
0.28
140
142
144
146
147
149
0.29
144
146
148
150
151
153
154
0.30
149
151
153
155
156
157
158
159
170
0.31
154
156
157
159
160
161
162
163
164
175
0.32
158
160
162
163
164
166
167
168
168
170
171
180
0.33
163
165
166
168
169
170
171
173
173
174
175
185
0.34
168
170
171
172
173
174
175
176
177
178
179
190
0.35
174
175
176
177
178
179
180
181
182
183
194
0.36
179
181
182
183
184
185
185
186
187
199
0.37
185
186
187
188
189
190
191
191
204
0.38
190
191
192
193
194
195
195
208
0.39
196
197
198
198
199
200
213
0.40
201
202
203
204
204
217
0.41
206
207
208
208
221
0.42
211
212
212
225
0.43
215
216
230
0.44
220
234
0.45
238
GLANDULAR DOSE (IN mrad) FOR 1 ROENTGEN ENTRANCE EXPOSURE TO
				  A 4.2-CM BREAST THICKNESS ---50% ADIPOSE 50% GLANDULAR BREAST TISSUE ---USING A
				  Mo/Rh TARGET-FILTER COMBINATION*
X-ray Tube Voltage (kVp)
HVL
25
26
27
28
29
30
31
32
33
34
35
0.28
149
151
154
0.29
154
156
158
159
0.30
158
160
162
162
163
0.31
163
164
166
166
166
167
167
0.32
167
169
171
171
171
171
172
172
0.33
171
173
175
176
176
176
176
177
0.34
176
178
179
179
180
180
180
181
181
0.35
180
181
183
183
184
185
185
186
187
0.36
185
186
187
187
188
188
189
190
191
191
0.37
189
190
191
191
192
193
193
194
195
195
0.38
193
194
196
196
197
197
197
198
199
199
200
0.39
198
199
200
200
201
201
202
202
203
203
204
0.40
202
203
204
204
205
205
206
207
208
208
208
0.41
206
207
208
208
209
209
210
211
212
212
212
0.42
211
211
212
212
213
213
214
215
216
216
217
0.43
215
216
217
217
218
218
219
219
220
220
221
0.44
220
220
221
221
222
222
223
223
224
224
225
0.45
224
224
225
225
226
226
227
227
228
228
229
0.46
228
229
229
230
231
231
232
233
233
234
0.47
233
233
234
235
235
236
237
237
238
0.48
238
238
239
240
240
241
241
242
242
0.49
242
243
243
244
244
245
245
246
0.50
247
247
248
248
249
250
251
0.51
251
252
253
254
254
255
0.52
257
257
258
258
259
0.53
261
261
262
263
264
0.54
265
266
267
268
0.55
269
270
271
272
0.56
275
276
276
0.57
279
280
281
0.58
284
285
0.59
288
289
0.60
293
GLANDULAR DOSE (IN mrad) FOR 1 ROENTGEN ENTRANCE EXPOSURE TO
				  A 4.2-CM BREAST THICKNESS ---50% ADIPOSE 50% GLANDULAR BREAST TISSUE ---USING A
				  Rh/Rh TARGET-FILTER COMBINATION*
X-ray Tube Voltage (kVp)
HVL
25
26
27
28
29
30
31
32
33
34
35
0.28
150
155
159
0.29
155
160
164
168
0.30
160
164
168
172
176
0.31
165
168
172
174
180
182
0.32
169
173
177
181
184
186
188
0.33
174
178
181
185
188
190
192
0.34
179
183
186
190
193
195
196
199
0.35
184
187
190
194
197
199
201
203
0.36
189
192
195
198
201
204
205
207
209
0.37
193
196
199
202
205
207
209
211
213
0.38
198
201
204
207
209
211
213
215
217
219
221
0.39
203
206
208
211
214
216
217
219
221
223
224
0.40
208
211
213
216
218
220
221
223
224
226
228
0.41
213
215
217
220
222
224
225
227
228
230
232
0.42
218
220
222
224
226
228
229
231
232
234
236
0.43
222
224
226
228
230
232
233
235
236
238
240
0.44
227
229
231
233
235
237
238
239
240
242
243
0.45
232
234
235
237
239
241
242
243
244
246
247
0.46
239
241
243
245
246
247
248
250
251
0.47
247
249
250
251
252
254
255
0.48
251
253
254
255
256
258
259
0.49
257
258
259
260
261
262
0.50
261
262
263
264
265
266
0.51
266
267
268
269
270
0.52
270
271
272
273
274
0.53
275
276
276
277
278
0.54
279
280
280
281
0.55
283
284
284
285
0.56
288
288
289
0.57
292
293
0.58
296
297
0.59
300
0.60
304