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Units: CGS SI	Results: Comments:
Physical Constants Physics Conversions:				Isotope Data Isotopes Ac-210 Ac-211 Ac-212 Ac-213 Ac-214 Ac-215 Ac-216 Ac-217 Ac-218 Ac-219 Ac-220 Ac-221 Ac-222 Ac-223 Ac-224 Ac-225 Ac-226 Ac-227 Ac-228 Ac-229 Ac-230 Ac-231 Ac-232 Ag-100 Ag-101 Ag-102 Ag-103 Ag-104 Ag-105 Ag-106 Ag-107 Ag-108 Ag-109 Am-240 Am-241 Am-242 Am-243 Am-244 Ar-37 Ar-39 Ar-41 Au-189 Au-190 Au-196 Au-198 Au-199 B-12 B-13 B-14 B-15 B-7 B-8 B-9 Be-10 Be-11 Be-12 Be-14 Be-6 Be-7 Be-8 C-10 C-11 C-14 C-15 C-16 C-17 C-8 C-9 Ca-41 Ca-45 Ca-47 Cd-107 Cd-109 Ce-137 Ce-139 Ce-141 Ce-143 Ce-144 Ce-145 Cf-251 Cf-252 Cl-36 Cm-242 Cm-243 Cm-244 Co-56 Co-57 Co-58 Co-60 Cr-51 Cs-134 Cs-135 Cs-136 Cs-137 Cs-138 Cs-139 Cu-64 Cu-66 F-15 F-16 F-17 F-18 Fe-55 Fe-59 Fe-60 H-3 He-5 He-6 He-7 He-8 Hf-174 Hf-175 Hf-177 Hf-178 Hf-179 Hf-180 Hf-181 Hf-182 I-124 I-125 I-126 I-128 I-129 I-130 I-131 I-132 In-103 In-104 In-105 In-106 In-107 In-108 In-109 In-110 In-111 In-112 In-113 In-114 In-115 In-116 Ir-188 Ir-189 Ir-190 Ir-191 Ir-192 Ir-193 Ir-194 K-38 K-40 K-42 K-43 K-44 Kr-79 Kr-81 Kr-83 Kr-85 Kr-87 Kr-88 Li-11 Li-5 Li-8 Li-9 Mg-23 Mg-27 Mg-28 Mg-29 Mn-52 Mn-53 Mn-54 Mn-56 Mn-57 Mo-99 N-12 N-13 N-16 N-17 Na-21 Na-22 Na-24 Na-25 Ne-16 Ne-17 Ni-55 Ni-56 Ni-57 Ni-59 Ni-63 Ni-65 Ni-66 Np-237 Np-238 Np-239 Np-240 Np-241 O-12 O-13 O-14 O-15 P-30 P-32 P-33 Pb-200 Pb-201 Pb-202 Pb-203 Pb-204 Pb-205 Pb-207 Pb-209 Pb-210 Pb-211 Pb-212 Pb-213 Pb-214 Po-205 Po-206 Po-207 Po-208 Po-209 Po-210 Po-211 Po-212 Po-213 Po-214 Po-215 Po-216 Po-217 Po-218 Pu-236 Pu-237 Pu-238 Pu-239 Pu-240 Pu-241 Pu-242 Pu-243 Ra-223 Ra-224 Ra-225 Ra-226 Ra-227 Ra-228 Ra-229 Ra-230 Rb-83 Rb-84 Rb-86 Rb-88 Rn-218 Rn-219 Rn-220 Rn-221 Rn-222 S-35 Se-79 Sr-85 Sr-87 Sr-89 Sr-90 Sr-91 Tc-99 Th-226 Th-227 Th-228 Th-229 Th-230 Th-231 Th-232 Th-233 Th-234 Tl-200 Tl-201 Tl-202 Tl-204 Tl-206 Tl-207 Tl-208 Tl-209 Tl-210 U-232 U-233 U-234 U-235 U-236 U-237 U-238 U-239 Y-87 Y-88 Y-90 Y-91 Y-92 Zn-65 Ba-133
Decay Calculator Type in the initial amount: Ci mCi uCi nCi Bq kBq MBq		Month | Day | Year Ref. Date: / / Cur. Date: / /	the Current Amount	Current Activity

This is just an attempt to show some of the programming possible with JavaScript. The decay calculator should work with any of the 294 nuclides in the data base. The half-lives are from the Chart of the Nuclide 14^th edition (GE), atomic masses are from NNDC 1993 Values.

Most of the JavaScript code for this calculator came (with permission) from the Scientific Calculator by Rolf Howarth. (rolf@insect.demon.co.uk) and Astromomy Calculator by Chris Dolan .

The decay calculator is based on the excellent work of Brian Smith (brianc@cats.ucsc.edu) as seen on the UCSC Radiation Safety Office's Web Site.

Last updated: 11/19/98

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