NIST Traceable Calibration Standards
Gamma Standards—Type D Disc Sources
The type D configuration is mainly used for checking the performance of G.M. and NaI(Tl) detectors. The type D disk is a 1” (25.4 mm) diameter by 0.250” (6.35 mm) thick disk constructed of high strength plastic. The active diameter is 0.197” (5 mm).
| Catalog Number | Nuclide | Half-Life | Major Photon Emmissions (keV) | Available Activities |
|---|---|---|---|---|
| GF-241-D | Americium-241 | 432.17 y | 59.5 (36%), 11-20 (39.5%) Np L x-rays | 5 nCi-100 μCi, 185 Bq-3.7 MBq |
| GF-124-D | Antimony-124 | 60.20 d | 602.7 (97.9%), 722.8 (10.9%), 1690.9 (47.6%) | 5 nCi-100 μCi, 185 Bq-3.7 MBq |
| GF-125-AD | Antimony-125 | 1007.7 d | 428 (29.7%), 464 (10.5%), 601 (17.7%), 607 (5%), 636 (11.2%), 27-32 (75.1%) Te K x-rays |
5 nCi-100 μCi, 185 Bq-3.7 MBq |
| GF-133-D | Barium-133 | 3862 d | 80 (34.1%), 303 (18.3%), 356 (61.9%), 32-37 (53.2% )Cs K x-rays | 5 nCi-100 μCi, 185 Bq-3.7 MBq |
| GF-007-D | Beryllium-7 | 53.284 d | 478 (10.3%) | 25 nCi-500 μCi, 925 Bq-18.5 MBq |
| GF-207-D | Bismuth-207 | 1.16 x 104 d | 570 (97.7%), 1064 (74.5%), 9-15 (32.5%), Pb L x-rays, 72-88 (77.7%) Pb K x-rays |
5 nCi-100 μCi 185 Bq-3.7 MBq |
| GF-109-D | Cadmium-109 | 462.6 d | 88 (3.6% from Ag-109m), 22-26 (99.4%) Ag K x-rays | 50 nCi-1 uCi, 1.85 kBq-37 MBq |
| GF-139-D | Cerium-139 | 137.640 d | 33.03 (22.8%), 33.4 (41.9%), 165.9 (79.9%), 33-39 (80%) La x-rays | 5 nCi-10 µCi, 185 Bq-370 kBq |
| GF-141-D | Cerium-141 | -- | info sent on request | info sent on request |
| GF-134-D | Cesium-134 | 754.28 d | 563 (8.4%), 569 (15.4%), 605 (97.6%), 796 (85.4%) | 5 nCi-100 μCi, 185 Bq-3.7 MBq |
| GF-137-D | Cesium-137 | 30.17 y | 662 (85.1% from Ba-137), 32-37 (7.2%) Ba K x-rays | 5 nCi-1 uCi, 185 Bq-3.7 MBq |
| GF-051-D | Chromium-51 | 27.706 d | 320 (9.86%), 4.9-5.4 (22.8%) V K x-rays | 25 nCi-500 μCi, 185 Bq-37 MBq |
| GF-056-D | Cobalt-56 | 77.31 d | 846.8 (99.9%), 1238 (66.1%), 1771 (15.5%), 2035 (7.8%), 2598 (17%), 3253 (7.6%), others up to 3452 |
10 nCi-100 μCi, 370 Bq-3.7 MBq |
| GF-057-D | Cobalt-57 | 271.79 d | 14 (9.2%), 122 (85.6%), 136.5 (10.7%), 6.4-7.1 (57.9%) Fe K x-rays | 5 nCi-1 uCi, 185 Bq-37 MBq |
| GF-058-D | Cobalt-58 | 70.86 d | 810 (99.5%), 6.4-7.1 (26.7%) Fe K x-rays | 5 nCi-100 μCi, 185 Bq-3.7 MBq |
| GF-060-D | Cobalt-60 | 5.272 y | 1173 (100%), 1333 (100%), 1173 (100%), 1333 (100%) | 5 nCi-1 uCi, 185 Bq-37 MBq |
| GF-152-D | Europium-152 | 4933 d | 122-1408, 40-47 (74%) Sm +Gd x-rays | 25 nCi-100 μCi 925 Bq-3.7 MBq |
| GF-154-D | Europium-154 | 3136.8 d | 123-1597, 42-50 (25.6%) Gd x-rays | 25 nCi-100 μCi, 925 Bq-3.7 MBq |
| GF-155-D | Europium-155 | 1770 d | 87 (34%), 105 (20.6%), 42-50 (24.0%), Gd K x-rays | 10 nCi-100 μCi, 370 Bq-3.7 MBq |
| GF-153-D | Gadolinium-153 | 242 d | 97 (29.5%), 103 (21.1%), 40-49 (122%) Eu K x-rays | 5 nCi-1 uci, 185 Bq-37 MBq |
| GF-068-D | Germanium-68 | 270.8 d | 511 (178%), 1077 (3.2%) from Ga-68, 9.2-10.4 (44.1%) Ga K x-rays, 8.6-9.6 (4.7%) Zn K x-rays |
100 nCi-100 μCi, 3.7 kBq-3.7 MBq |
| GF-166-D | Holmium-166m(1) | 1200 y | 81-1427, 48-58 (37.6%) Er K x-rays | 10 nCi-10 µCi, 370 Bq-370 kBq |
| GF-125-D | Iodine-125 | 59.43 d | 35 (6.58%), 27-32 (139%) Te K x-rays | 10 nCi-100 μCi, 370 Bq-3.7 MBq |
| GF-129-D | Iodine-129 | 1.57 x 107 y | 40 (7.5%), 29-35 (70.4%) Xe K x-rays | 50 nCi-1 μCi, 1.85 kBq-37 kBq |
| GF-059-D | Iron-59 | 44.51 d | 1099 (56.3%), 1292 (43.7%) | 5 nCi-100 μCi, 185 Bq-3.7 MBq |
| GF-054-D | Manganese-54 | 312.3 d | 835 (100%), 5.4-5.9 (25.6%) Cr K x-rays | 5 nCi-100 μCi, 185 Bq-3.7 MBq |
| GF-203-D | Mercury-203 | 46.595 d | 279.2 (81.5%) | 10 nCi-50 μCi, 370 Bq-1.85 MBq |
| GF-226-D | Radium-226 | 1600 y | 47-2448 (includes daughters) | 50 nCi-10 μCi, 1.85 kBq-370 kBq |
| GF-106-D | Ruthenium-106 | 1.020 y | 512 (20.7%), 622 (9.8%) from Rh-106 | 25 nCi-100 μCi, 925 Bq-3.7 MBq |
| GF-046-D | Scandium-46 | 83.79 d | 889 (99.9%), 1121 (99.9%) | 5 nCi-100 μCi 185 Bq-3.7 MBq |
| GF-075-D | Selenium-75 | 119.64 d | 121 (17.1%), 136 (58.8%), 265 (59%), 280 (25%), 10.5-12.0 (56.8%) As K x-rays |
5 nCi-100 μCi, 185 Bq-3.7 MBq |
| GF-110-D | Silver-110m | 249.8 d | 657.8 (94.4%), 884.6 (72.6%) | 5 nCi-50 μCi, 185 Bq-1.85 MBq |
| GF-131-D | Simulated I-131 | ~5 y | 356 (from Ba-133), 662 (from Cs-137/Ba-137) | 50 nCi-100 μCi, 1.85 kBq-3.7 MBq |
| GF-022-D | Sodium-22 | 950.8 d | 511 (178%), 1275 (100%) | 5 nCi-100 μCi, 185 Bq-3.7 MBq |
| GF-085-D | Strontium-85 | 64.849 d | 514 (98.4%), 13.3-15.3 (58.7%) Rb K x-rays | 5 nCi-100 μCi, 185 Bq-3.7 MBq |
| GF-228-D | Thorium-228 | 698.2 d | 84-2614 (includes daughters) | 10 nCi-10 μCi, 370 Bq-370 kBq |
| GF-113-D | Tin-113 | 115.09 d | 392 (64% from In-113 m), 24-28 (96.8%) In K x-rays | 5 nCi-100 μCi, 185 Bq-3.7 MBq |
| GF-235-D | Uranium-235(1) | 7.037 x 108 y | 143 (10.5%), 186(53%), 90-105 (10.8%) Th K x-rays | 10 nCi-100 nCi, 370 Bq-3.7 kBq |
| GF-238U-D | Uranium (Natural)(1) | 4.468 x 109 y | 26-2448 (includes daughters) | 10 nCi-100 nCi, 370 Bq-3.7 kBq |
| GF-088-D | Yttrium-88 | 106.630 d | 898 (94%), 1836 (99.4%), 14.1-16.2 (61.6%) Sr K x-rays | 5 nCi-100 μCi, 185 Bq-3.7 MBq |
| GF-065-D | Zinc-65 | 244.26 d | 1116 (50.6%), 8.0-8.9 (38.7%) Cu K x-rays | 5 nCi-100 μCi, 185 Bq-3.7 MBq |
| GF-095-D | Zirconium-95/Nb-95 | 64.02 d | 724 (44.1%), 757 (54.5%) | 10 nCi-50 μCi, 370 Bq-1.85 MBq |
Gamma Sets—Type D
| Catalog Number | Activities | Sets Consist Of |
|---|---|---|
| GF-290-0.1D | 0.1 μCi, 3.7 kBq | Ba-133, Cd-109, Co-57, Co-60, Cs-137, Mn-54 and Na-22 |
| GF-290-1D | 1 μCi, 37 kBq | Ba-133, Cd-109, Co-57, Co-60, Cs-137, Mn-54 and Na-22 |
| GF-290-10D | 10 μCi, 370 kBq | Ba-133, Cd-109, Co-57, Co-60, Cs-137, Mn-54 and Na-22 |
Gamma Standards—Type M Disc Sources
The type M thin “scatterless” disk is used in applications involving high resolution solid state detectors. The activity is deposited on 9 mg/cm2 aluminumized Mylar (polyester) disk, and covered with 0.9 mg/cm2 Kapton (polymide). The source is supplied in a removable aluminum holder. In the holder the source has an overall diameter of 1” (25.4 mm) and a thickness of 0.125” (3.18 mm). Out of the holder the source is 0.937” (23.8 mm) in diameter with a thickness of approximately 0.030” (0.76 mm). The active diameter is 0.12” (3 mm).
| Catalog Number | Nuclide | Half-Life | Major Photon Emmissions (keV) | Available Activities |
|---|---|---|---|---|
| GF-241-M | Americium-241 | 432.17 y | 59.5(36%), 11-20(39.5%) Np L x-rays | 5 nCi-10 µCi, 185 Bq-370 kBq |
| GF-124-M | Antimony-124 | 60.20 d | 602.7(97.9%), 722.8(10.9%), 1690.9(47.6%) | 5 nCi-100 μCi, 185 Bq-3.7 MBq |
| GF-125A-M | Antimony-125A | 1007.7 d | 428(29.7%), 464(10.5%), 601(17.7%), 607(5%), 636(11.2%), 27-32(75.1%) Te K x-rays | 5 nCi-100 μCi, 185 Bq-3.7 MBq |
| GF-133-M | Barium-133 | 3862 d | 80(34.1%), 303(18.3%), 356(61.9%), 32-37(53.2%) Cs K x-rays | 5 nCi-100 μCi, 185 Bq-3.7 MBq |
| GF-007-M | Beryllium-7 | 53.28 d | 478(10.3%) | 25 nCi-500 μCi, 925 Bq-18.5 MBq |
| GF-207-M | Bismuth-207 | 1.16 x 104 d | 570(97.7%), 1064(74.5%), 9-15(32.5%), Pb L x-rays, 72-88(77.7%) Pb K x-rays | 5 nCi-100 µCi, 185 Bq-3.7 MBq |
| GF-109-M | Cadmium-109 | 462.6 d | 88(3.6% from Ag-109 m), 22-26(99.4%) Ag K x-rays | 50 nCi-100 µCi, 1.85 kBq-3.7 MBq |
| GF-139-M | Cerium-139 | 137.640 d | 33.03(22.8%), 33.4(41.9%), 165.9(79.9%), 33-39(80%) La x-rays | 50nCi-1 µCi , 1.85 kBq-37 kBq |
| GF-141-M | Cerium-141 | 32.5 d | 36.0 (9.1%), 35.6 (5%), 145.4 (48.4%), 352.42 (17%), Pr x-rays | On Request |
| GF-134-M | Cesium-134 | 754.28 d | 563(8.4%), 569(15.4%), 605(97.6%), 796(85.4%) | 5 nCi-100 μCi, 185 Bq-3.7 MBq |
| GF-137-M | Cesium-137 | 30.17 y | 662(85.1% from Ba-137), 32-37(7.2%) Ba K x-rays | 5 nCi-100 μCi, 185 Bq-3.7 MBq |
| GF-051-M | Chromium-51 | 27.706 d | 320(9.86%), 4.9-5.4(22.8%) V K x-rays | 25 nCi-100 μCi, 925 Bq-3.7 MBq |
| GF-056-M | Cobalt-56 | 77.31 d | 846.8(99.9%), 1238(66.1%), 1771(15.5%), 2035(7.8%), 2598(17%), 3253(7.6%), others up to 3452 | 10 nCi-100 μCi, 370 Bq-3.7 MBq |
| GF-057-M | Cobalt-57 | 271.79 d | 14(9.2%), 122(85.6%), 136.5(10.7%), 6.4-7.1(57.9%) Fe K x-rays | 5 nCi-100 μCi, 185 Bq-3.7 MBq |
| GF-058-M | Cobalt-58 | 70.86 d | 810(99.5%), 6.4-7.1(26.7%) Fe K x-rays | 5 nCi-100 μCi, 185 Bq-3.7 MBq |
| GF-060-M | Cobalt-60 | 5.272 y | 1173(100%), 1333(100%) | 5 nCi-100 μCi, 185 Bq-3.7 MBq |
| GF-152-M | Europium-152 | 4933 d | 122-1408, 40-47(74%) Sm +Gd x-rays | 25 nCi-100 μCi, 925 Bq-3.7 MBq |
| GF-154-M | Europium-154 | 3136.8 d | 123-1597, 42-50(25.6%) Gd x-rays | 25 nCi-100 μCi, 925 Bq-3.7 MBq |
| GF-155-M | Europium-155 | 1770 d | 87(34%), 105(20.6%), 42-50(24.0%), Gd K x-rays | 10 nCi-100 μCi, 370 Bq-3.7 MBq |
| GF-153-M | Gadolinium-153 | 242 d | 97(29.5%), 103(21.1%), 40-49(122%) Eu K x-rays | 10 nCi-100 μCi, 370 Bq-3.7 MBq |
| GF-068-M | Germanium-68 | 270.8 d | 511(178%), 1077(3.2%) from Ga-68, 9.2-10.4(44.1%) Ga K x-rays, 8.6-9.6(4.7%) Zn K x-rays | 100 nCi-100 μCi, 3.7 kBq-3.7 MBq |
| GF-166-M | Holmium-166m | 1200 y | 81-1427, 48-58(37.6%) Er K x-rays | 10 nCi-1 μCi ,370 Bq-37 kBq |
| GF-055-M | Iron-55 | 999 d | 5.8-6.5(27.3%) Mn K x-rays | 1 μCi-100 μCi ,37 kBq-3.7 MBq |
| GF-059-M | Iron-59 | 44.51 d | 1099(56.3%), 1292(43.7%) | 5 nCi-100 μCi, 185 Bq-3.7 MBq |
| GF-054-M | Manganese-54 | 312.3 d | 835(100%), 5.4-5.9(25.6%) Cr K x-rays | 5 nCi-100 μCi, 185 Bq-3.7 MBq |
| GF-203-M | Mercury-203 | 46.595 d | 279.2(81.5%) | 10 nCi-10 µCi, 370 Bq-370 kBq |
| GF-046-M | Scandium-46 | 83.79 d | 889(99.9%), 1121(99.9%) | 5 nCi-100 μCi, 185 Bq-3.7 MBq |
| GF-075-M | Selenium-75 | 119.64 d | 121(17.1%), 136(58.8%), 265(59%), 280(25%), 10.5-12.0(56.8%) As K x-rays | 5 nCi-100 μCi, 185 Bq-3.7 MBq |
| GF-110-M | Silver-110m | 249.8 d | 657.8(94.4%), 884.6(72.6%) | 5 nCi-50 μCi, 185 Bq-1.85 MBq |
| GF-131-M | Simulated I-131 | ~5 y | 356(from Ba-133), 662(from Cs-137/Ba-137) | 50 nCi-100 μCi, 1.85 kBq-3.7 MBq |
| GF-022-M | Sodium-22 | 950.8 d | 511(178%), 1275(100%) | 5 nCi-100 μCi, 185 Bq-3.7 MBq |
| GF-085-M | Strontium-85 | 64.849 d | 514(98.4%), 13.3-15.3(58.7%) Rb K x-rays | 5 nCi-100 μCi, 185 Bq-3.7 MBq |
| GF-113-M | Tin-113 | 115.09 d | 392(64% from In-113 m), 24-28(96.8%) In K x-rays | 5 nCi-10 µCi, 185 Bq-370 kBq |
| GF-088-M | Yttrium-88 | 106.630 d | 898(94%), 1836(99.4%), 14.1-16.2(61.6%) Sr K x-rays | 5 nCi-100 μCi, 185 Bq-3.7 MBq |
| GF-065-M | Zinc-65 | 244.26 d | 1116(50.6%), 8.0-8.9(38.7%) Cu K x-rays | 5 nCi-100 μCi, 185 Bq-3.7 MBq |
| GF-095-M | Zirconium-95/Nb-95 | 64.02 d | 724(44.1%), 757(54.5%) | 10 nCi-50 μCi 370 Bq-1.85 MBq |
