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The type R rod is used for calibrating well type NaI(Tl) detectors. It is constructed of high strength plastic and is offered in three sizes: 5” high x 0.625” diameter (127 mm x 15.9 mm), 5” high x 0.5” diameter (127 mm x 12.7 mm) and 2.95” x 0.5” diameter (74.9 mm x 12.7 mm). The active diameter of the rod standard is 0.187” (4.75 mm).

Overall Dimensions:

Am-241

GF-241-x

432.17 y

59.5 (36%), 11-20 (39.5%) Np L x-rays

5 nCi-100 µCi185 Bq-3.7 MBq

Sb-124

GF-124-x

60.20 d

602.7(97.9%), 722.8(10.9%), 1690.9(47.6%)

5 nCi-100 µCi185 Bq-3.7 MBq

Sb-125

GF-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 µCi185 Bq-3.7 MBq

Ba-133

GF-133-x

3862 d

80(34.1%), 303(18.3%), 356(61.9%), 32-37(53.2%) Cs K x-rays

5 nCi-100 µCi185 Bq-3.7 MBq

Be-7

GF-007

On request

Bi-207

GF-007-x

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 µCi185 Bq-3.7 MBq

Cd-109

GF-109-x

462.6 d

88(3.6% from Ag-109 m), 22-26(99.4%) Ag K x-rays

50 nCi-1 mCi1.85 kBq-37 MBq

Ce-139

GF-139-x

137.640 d

33.03(22.8%), 33.4(41.9%), 165.9(79.9%), 33-39(80%) La x-rays

5 nCi-10 µCi185 Bq-370 kBq

Ce-141

32.5 d

not available

Cs-134

GF-134-x

754.28 d

563(8.4%), 569(15.4%), 605(97.6%), 796(85.4%)

5 nCi-100 µCi185 Bq-3.7 MBq

Cs-137

GF-137-x

30.17 y

662(85.1% from Ba-137), 32-37(7.2%) Ba K x-rays

5 nCi-1 mCi185 Bq-37 MBq

Cr-51

GF-051-x

27.706 d

320(9.86%), 4.9-5.4(22.8%) V K x-rays

25 nCi-500 µCi925 Bq-18.5 MBq

Co-57

GF-057-x

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 µCi185 Bq-3.7 MBq

Co-60

GF-060-x

5.272 y

1173(100%), 1333(100%)

5 nCi-100 µCi185 Bq-3.7 MBq

Eu-152

GF-152-x

4933 d

122-1408, 40-47(74%) Sm +Gd x-rays

Eu-154

GF-154-x

3136.8 d

123-1597, 42-50(25.6%) Gd x-rays

25 nCi-100 µCi925 Bq-3.7 MBq

Gd-153

GF-153-x

242 d

97(29.5%), 103(21.1%), 40-49(122%) Eu K x-rays

10 nCi-100 µCi370 Bq-3.7 MBq

Ge-68

GF-068-x

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 µCi3.7 kBq-3.7 MBq

Ho-166m

GF-166-x

1200 y

81-1427, 48-58(37.6%) Er K x-rays

10 nCi-10 µCi370 Bq-370 kBq

I-125

GF-125-x

59.43 d

35(6.58%), 27-32(139%) Te K x-rays

10 nCi-10 µCi370 Bq-370 kBq

I-129

GF-129-x

1.57 x 10⁷ y

40(7.5%), 29-35(70.4%) Xe K x-rays

50 nCi-1 µCi1.85 kBq-37 kBq

Fe-59

GF-059-x

44.51 d

1099(56.3%), 1292(43.7%)

5 nCi-100 µCi185 Bq-3.7 MBq

Mn-54

GF-054-x

312.3 d

835(100%), 5.4-5.9(25.6%) Cr K x-rays

5 nCi-100 µCi185 Bq-3.7 MBq

Hg-203

GF-203-x

46.595 d

279.2(81.5%)

10 nCi-50 µCi370 Bq-1.85 MBq

Ra-226

GF-226-x

1600 y

47-2448 (includes daughters)

50 nCi-10 µCi1.85 kBq-370 kBq

Ru-106

GF-106-x

1.020 y

512(20.7%), 622(9.8%) from Rh-106

25 nCi-100 µCi925 Bq-3.7 MBq

Se-75

GF-075-x

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 µCi185 Bq-3.7 MBq

Ag-110m

GF-110-x

249.8 d

657.8(94.4%), 884.6(72.6%)

5 nCi-50 µCi185 Bq-1.85 MBq

Mock I-131

GF-131-x

~5 y

356(from Ba-133), 662(from Cs-137/Ba-137)

50 nCi-100 µCi1.85 kBq-3.7 MBq

Na-22

GF-022-x

950.8 d

511(178%), 1275(100%)

5 nCi-100 µCi185 Bq-3.7 MBq

Sr-85

GF-085-x

64.849 d

514(98.4%), 13.3-15.3(58.7%) Rb K x-rays

5 nCi-100 µCi185 Bq-3.7 MBq

Th-228

GF-228-x

698.2 d

84-2614 (includes daughters)

50 nCi-10 µCi1.85 kBq-370 kBq

Sn-113

GF-113-x

115.09 d

392(64% from In-113 m), 24-28(96.8%) In K x-rays

5 nCi-100 µCi185 Bq-3.7 MBq

U-235

GF-235-x

7.037 x 10⁸ y

143(10.5%), 186(53%), 90-105(10.8%) Th K x-rays

10 nCi-100 nCi370 Bq-3.7 kBq

U-238 (U-nat)

GF-238U-x

4.468 x 10⁹ y

26-2448 (includes daughters)

10 nCi-35 nCi370 Bq-1.29 kBq

Y-88

GF-088-x

106.630 d

898(94%), 1836(99.4%), 14.1-16.2(61.6%) Sr K x-rays

5 nCi-100 µCi185 Bq-3.7 MBq

Zn-65

GF-065-x

244.26 d

1116(50.6%), 8.0-8.9(38.7%) Cu K x-rays

5 nCi-100 µCi185 Bq-3.7 MBq

Zr-95

GF-095-x

64.02 d

724(44.1%), 757(54.5%)

10 nCi-50 µCi370 Bq-1.85 MBq

GF-290-0.1x

0.1 µCi each/ 3.7 kBq each

Ba-133, Cd-109, Co-57, Co-60, Cs-137, Mn-54 and Na-22

GF-290-0.1x

1 µCi each/ 37 kBq each

Ba-133, Cd-109, Co-57, Co-60, Cs-137, Mn-54 and Na-22

GF-290-0.1x

10 µCi each/ 370 kBq each

Ba-133, Cd-109, Co-57, Co-60, Cs-137, Mn-54 and Na-22