Lampiran Fix.docx

LAMPIRAN 41

LAMPIRAN 1. PERHITUNGAN Contoh cara perhitungan aktivitas dalam sampel udara PM 2,5 pada radionuklida alam K-40 Lokasi 1 sebagai berikut, 1. K-40 pada energi 1460,28 KeV pada Blanko a. Perhitungan Laju Cacahan 1) Untuk cacah BLK-1 𝑁=

2829

= 0,032743056 cps

86400

2) Untuk cacah BLK-2 3068

𝑁 = 86400 = 0,035509259 cps 3) Untuk cacah BLK-3 2975

𝑁 = 86400 = 0,03443287 cps b. Rata-rata Laju Cacahan 𝑁𝑏 = =

𝑁1 + 𝑁2 + 𝑁3 3 0,032743056+0,035509259+0,03443287 3

= 0,034228395 cps 2. K-40 pada energi 1460,28 KeV pada lokasi 1 a. L1-1 1) Perhitungan Laju Cacahan 3116

𝑁𝑡 = 86400 = 0,036064815 cps 2) Perhitungan Laju Cacahan Bersih 𝑁 𝑏𝑒𝑟𝑠𝑖ℎ = 𝑁𝑡 − 𝑁𝑏 = (0,036064815 − 0,034228395 ) cps = 0,00183642 cps 3) Perhitungan Aktivitas Radionuklida Probabilitas (P𝜸) = 0,107 Berat akhir (W) = 0,97396 gram ε = 1,0987 . 𝑥 −0,621 = 1,0987 . 1460,28−0,621 = 0,011906

42

𝑁 𝑏𝑒𝑟𝑠𝑖ℎ

𝐴1 = ε x Py x W 0,00183642 cps

= 0,011906 x 0,107 x 0,97396 = 1,4880066329 Bq/𝑔𝑟𝑎𝑚 4) Perhitungan Konsentrasi Aktivitas Radionuklida Volume udara = 705,8 m3 Massa debu

= 0,02838 gram

𝑤 𝑑𝑒𝑏𝑢

𝐶 = volume udara 𝐴𝑓𝑖 = 𝐴1 . C 𝐴𝑓𝑖 = 𝐴1

𝑤 𝑑𝑒𝑏𝑢 𝑣𝑜𝑙𝑢𝑚𝑒 𝑢𝑑𝑎𝑟𝑎

𝐴𝑓𝑖 = 1,4880066329 Bq/𝑔𝑟𝑎𝑚,

0,02838 𝑔𝑟𝑎𝑚 705,8 𝑚3

= 5,9513 e-05 Bq/m3 = 59,51 µBq/m3

b. L1-2 1) Perhitungan Laju Cacahan 3095

𝑁𝑡 = 86400 = 0,035821759 cps 2) Perhitungan Laju Cacahan Bersih 𝑁 𝑏𝑒𝑟𝑠𝑖ℎ = 𝑁𝑡 − 𝑁𝑏 = (0,035821759 − 0,034228395 ) cps = 0,001593364 cps 3) Perhitungan Aktivitas Radionuklida Efisiensi (ε) = 0,011906 Probabilitas (Py) = 0,107 Berat akhir (W) = 0,97396 gram 𝑁 𝑏𝑒𝑟𝑠𝑖ℎ

𝐴2 = ε x Py x W =

0,001593364 cps 0,011906x 0,107 x 0,97396

= 1,284175197 Bq/𝑔𝑟𝑎𝑚

4) Perhitungan Konsentrasi Aktivitas Radionuklida Volume udara = 705,8 m3

43

Massa debu

= 0,02838 gram

𝑤 𝑑𝑒𝑏𝑢

𝐶 = volume udara 𝐴𝑓𝑖 = 𝐴2 . C 𝐴𝑓𝑖 = 𝐴2

𝑤 𝑑𝑒𝑏𝑢 𝑣𝑜𝑙𝑢𝑚𝑒 𝑢𝑑𝑎𝑟𝑎

𝐴𝑓𝑖 = 1,284175197 Bq/𝑔𝑟𝑎𝑚

0,02838 𝑔𝑟𝑎𝑚 705,8 𝑚3

= 5,1636 e-06Bq/m3 = 5,1636 µBq/m3

c. L1-3 1) Perhitungan Laju Cacahan 3135

𝑁𝑡 = 86400 = 0,036284722 cps 2) Perhitungan Laju Cacahan Bersih 𝑁 𝑏𝑒𝑟𝑠𝑖ℎ = 𝑁𝑡 − 𝑁𝑏 = (0,036284722 − 0,034228395 ) cps = 0,002056327 cps 3) Perhitungan Aktivitas Radionuklida Efisiensi (ε) = 0,011906 Probabilitas (Py) = 0,107 Berat akhir (W) = 0,97396 gram 𝑁 𝑏𝑒𝑟𝑠𝑖ℎ

𝐴3 = ε x Py x W =

0,002056327 cps 0,011906 x 0,12 x 0,97396

= 1,657301162 Bq/𝑔𝑟𝑎𝑚

4) Perhitungan Konsentrasi Aktivitas Radionuklida Volume udara = 705,8 m3 Massa debu

= 0,02838 gram

𝑤 𝑑𝑒𝑏𝑢

𝐶 = volume udara

44

𝐴𝑓𝑖 = 𝐴3 . C 𝐴𝑓𝑖 = 𝐴3

𝑤 𝑑𝑒𝑏𝑢 𝑣𝑜𝑙𝑢𝑚𝑒 𝑢𝑑𝑎𝑟𝑎

𝐴𝑓𝑖 = 1,657301162 Bq/𝑔𝑟𝑎𝑚

0,02838 𝑔𝑟𝑎𝑚 705,8 𝑚3

= 6,6640 e-05Bq/m3 = 66,64 µBq/m3

d. Perhitungan Rata-Rata Aktivitas Radionuklida 𝐴𝑓𝑖1 + 𝐴𝑓2 + 𝐴𝑓𝑖3 3 (59,51 + 5,1636 + 66,64 )𝜇Bq 𝑚3 = 3

Ā𝑓𝑖 =

= 59,263 𝜇Bq/𝑚3

45

LAMPIRAN 2. TABEL PENENTUAN AKTIVITAS RADIONUKLIDA

1. Perhitungan CPS Radionuklida pada Blanko Filter Udara PM 2.5 Energi BLK-1 BLK-2 BLK-3 t cacah Radionuklida (KeV) (net area) (net area) (net area) (sekon) Pb-210 46.52 70 78 81 86400 Th-234 63.26 28 33 33 86400 U-235 143.76 48 44 64 86400 Ra-226 185.99 397 413 85 86400 Pb-212 238.63 768 487 638 86400 Pb-214 295.22 180 220 176 86400 Ac-228 338.40 65 93 30 86400 Pb-214 352.00 651 666 694 86400 TI-208 583.14 219 179 192 86400 Bi-214 609.20 814 717 711 86400 Bi-212 727.17 27 28 20 86400 Ac-228 911.07 287 148 256 86400 Ac-228 968.90 44 250 112 86400 Bi-214 1120.28 277 131 353 86400 K-40 1460.28 2829 3068 2975 86400 Bi-24 1764.51 450 162 345 86400

CPS-1

CPS-2

CPS-3

Rata-rata

0.00081019 0.00032407 0.00055556 0.00459491 0.00888889 0.00208333 0.00075231 0.00753472 0.00253472 0.00942130 0.00031250 0.00332176 0.00050926 0.00320602 0.03274306 0.00520833

0.00090278 0.00038194 0.00050926 0.00478009 0.00563657 0.00254630 0.00107639 0.00770833 0.00207176 0.00829861 0.00032407 0.00171296 0.00289352 0.00151620 0.03550926 0.00187500

0.00093750 0.00038194 0.00074074 0.00098380 0.00738426 0.00203704 0.00034722 0.00803241 0.00222222 0.00822917 0.00023148 0.00296296 0.00129630 0.00408565 0.03443287 0.00399306

0.00088349 0.00036265 0.00060185 0.00345293 0.00730324 0.00222222 0.00072531 0.00775849 0.00227623 0.00864969 0.00028935 0.00266590 0.00156636 0.00293596 0.03422840 0.00369213

Tabel 2.1. Perhitungan CPS Radionuklida pada Blanko Filter Udara PM 2.5 Keterangan : BLK: Blanko t cacah: waktu cacah

46

2. Penentuan Aktivitas Radionuklida pada Sampel Udara PM 2.5 LOKASI 1 a. Data Hasil Perhitungan CPS Radionuklida Pb-210 Th-234 U-235 Ra-226 Pb-212 Pb-214 Ac-228 Pb-214 TI-208 Bi-214 Bi-212 Ac-228 Ac-228 Bi-214 K-40 Bi-24

Energi (KeV) 46.52 63.26 143.76 185.99 238.63 295.22 338.40 352.00 583.14 609.20 727.17 911.07 968.90 1120.28 1460.28 1764.51

Lokasi 1- 1 (net area) 163 90 101 490 878 404 134 723 265 840 32 307 182 325 3116 455

Lokasi 1-2 (net area) 154 140 115 457 820 450 120 717 256 864 32 291 189 329 3095 480

Lokasi 1-3 (net area) 146 157 110 510 865 472 143 726 265 875 33 304 186 332 3135 484

t cacah (sekon) 86400 86400 86400 86400 86400 86400 86400 86400 86400 86400 86400 86400 86400 86400 86400 86400

CPS 1-1

CPS 1-2

CPS 1-3

0.0018866 0.0010417 0.0011690 0.0056713 0.0101620 0.0046759 0.0015509 0.0083681 0.0030671 0.0097222 0.0003704 0.0035532 0.0021065 0.0037616 0.0360648 0.0052662

0.0017824 0.0016204 0.0013310 0.0052894 0.0094907 0.0052083 0.0013889 0.0082986 0.0029630 0.0100000 0.0003704 0.0033681 0.0021875 0.0038079 0.0358218 0.0055556

0.0016898 0.0018171 0.0012731 0.0059028 0.0100116 0.0054630 0.0016551 0.0084028 0.0030671 0.0101273 0.0003819 0.0035185 0.0021528 0.0038426 0.0362847 0.0056019

Tabel 2.2. Perhitungan CPS Radionuklida pada Sampel Udara PM 2.5 Lokasi 1

47

b. Data Hasil Perhitungan CPS Bersih Radionuklida Pb-210 Th-234 U-235 Ra-226 Pb-212 Pb-214 Ac-228 Pb-214 TI-208 Bi-214 Bi-212 Ac-228 Ac-228 Bi-214 K-40 Bi-24

Energi (KeV) 46.52 63.26 143.76 185.99 238.63 295.22 338.40 352.00 583.14 609.20 727.17 911.07 968.90 1120.28 1460.28 1764.51

CPS bersih 1-1

CPS bersih 1-2

CPS bersih 1-3

0.00100309 0.00067901 0.00056713 0.00221836 0.00285880 0.00245370 0.00082562 0.00060957 0.00079090 0.00107253 0.00008102 0.00088735 0.00054012 0.00082562 0.00183642 0.00157407

0.00089892 0.00125772 0.00072917 0.00183642 0.00218750 0.00298611 0.00066358 0.00054012 0.00068673 0.00135031 0.00008102 0.00070216 0.00062114 0.00087191 0.00159336 0.00186343

0.00080633 0.00145448 0.00067130 0.00244985 0.00270833 0.00324074 0.00092978 0.00064429 0.00079090 0.00147762 0.00009259 0.00085262 0.00058642 0.00090664 0.00205633 0.00190972

Efisiensi

Probabilitas

0.005714 0.006922 0.050233 0.042808 0.03667 0.032131 0.029519 0.03545 0.021054 0.02049 0.018357 0.015959 0.01536 0.014036 0.011906 0.010586

0.4 0.039 0.105 0.0328 0.43 0.192 0.1201 0.371 0.86 0.4609 0.118 0.29 0.1746 0.1504 0.107 0.1592

Tabel 2.3. Perhitungan CPS Bersih Radionuklida pada Sampel Udara PM 2.5 Lokasi 1

48

c. Data Hasil Perhitungan Aktivitas Radionuklida Radionuklida Pb-210 Th-234 U-235 Ra-226 Pb-212 Pb-214 Ac-228 Pb-214 TI-208 Bi-214 Bi-212 Ac-228 Ac-228 Bi-214 K-40 Bi-24

Energi (KeV) 46.52 63.26 143.76 185.99 238.63 295.22 338.40 352.00 583.14 609.20 727.17 911.07 968.90 1120.28 1460.28 1764.51

Massa akhir (gram) 0.97396 0.97396 0.97396 0.97396 0.97396 0.97396 0.97396 0.97396 0.97396 0.97396 0.97396 0.97396 0.97396 0.97396 0.97396 0.97396

Aktivitas 1-1 0.45061 2.58250 0.11040 1.62216 0.18615 0.40837 0.23911 0.04759 0.04485 0.11661 0.03840 0.19686 0.20678 0.40156 1.48007 0.95898

Aktivitas 1-2 0.40381 4.78349 0.14194 1.34286 0.14244 0.49698 0.19218 0.04217 0.03894 0.14681 0.03840 0.15577 0.23780 0.42407 1.28418 1.13526

Aktivitas 1-3 0.36222 5.53183 0.13068 1.79143 0.17635 0.53936 0.26928 0.05030 0.04485 0.16065 0.04389 0.18915 0.22451 0.44096 1.65730 1.16347

Volume Udara (m3) 705.8 705.8 705.8 705.8 705.8 705.8 705.8 705.8 705.8 705.8 705.8 705.8 705.8 705.8 705.8 705.8

Massa awal (gram) 0.94558 0.94558 0.94558 0.94558 0.94558 0.94558 0.94558 0.94558 0.94558 0.94558 0.94558 0.94558 0.94558 0.94558 0.94558 0.94558

Massa debu (gram) 0.02838 0.02838 0.02838 0.02838 0.02838 0.02838 0.02838 0.02838 0.02838 0.02838 0.02838 0.02838 0.02838 0.02838 0.02838 0.02838

Tabel 2.4. Perhitungan Aktivitas Radionuklida pada Sampel Udara PM 2.5 Lokasi 1

49

d. Data Hasil Perhitungan Aktivitas Radionuklida dan Presisinya Radionuklida

Energi (KeV)

Pb-210 Th-234 U-235 Ra-226 Pb-212 Pb-214 Ac-228 Pb-214 TI-208 Bi-214 Bi-212 Ac-228 Ac-228 Bi-214 K-40 Bi-24

46.52 63.26 143.76 185.99 238.63 295.22 338.40 352.00 583.14 609.20 727.17 911.07 968.90 1120.28 1460.28 1764.51

Aktivitas 1-1 (Bq/m3) 1.8119 e-05 1.0384 e-04 4.4391 e-06 6.5226 e-05 7.4850 e-06 1.6420 e-05 9.6144 e-06 1.9135 e-06 1.8033 e-06 4.6887 e-06 1.5442 e-06 7.9155 e-06 8.3147 e-06 1.6146 e-05 5.9513 e-05 3.8560 e-05

Aktivitas 1-2 (Bq/m3) 1.6237 e-05 1.9234 e-04 5.7074 e-06 5.3996 e-05 5.7274 e-06 1.9983 e-05 7.7275 e-06 1.6955 e-06 1.5658 e-06 5.9030 e-06 1.5442 e-06 6.2636 e-06 9.5619 e-06 1.7052 e-06 5.1636 e-06 4.5649 e-06

Aktivitas Aktivitas 1-3 1-3 (Bq/m3) (μBq/ m3) 1.4565 e-05 1.812 e+01 2.2243 e-04 1.038 e+02 5.2544 e-06 4.439 e+00 7.2033 e-05 6.523 e+01 7.0911 e-06 7.485 e+00 2.1687 e-05 1.642 e+01 1.0827 e-05 9.614 e+00 2.0225 e-06 1.913 e+00 1.8033 e-06 1.803 e+00 6.4596 e-06 4.689 e+00 1.7647 e-06 1.544 e+00 7.6058 e-06 7.916 e+00 9.0274 e-06 8.315 e+00 1.7731 e-05 1.615 e+01 6.6640 e-05 5.951 e+01 4.6783 e-05 3.856 e+01

Aktivitas 1-3 (μBq/ m3) 1.624 e+01 1.923 e+02 5.707 e+00 5.400 e+01 5.727 e+00 1.998 e+01 7.727 e+00 1.695 e+00 1.566 e+00 5.903 e+00 1.544 e+00 6.264 e+00 9.562 e+00 1.705 e+01 5.164 e+01 4.565 e+01

Aktivitas RataStandar 1-3 Presisi rata Deviasi (μBq/ m3) 1.456 e+01 16.3069 1.7781 10.904 +02 2.224 e 207.3881 21.2772 10.260 +00 5.254 e 5.1336 0.6427 12.520 +01 7.203 e 63.7518 9.1082 14.287 +00 7.091 e 6.7678 0.9223 13.628 +01 2.169 e 19.3638 2.6876 13.879 +01 1.083 e 9.3898 1.5622 16.637 +00 2.022 e 1.8045 0.1541 8.542 +00 1.803 e 1.7242 0.1371 7.953 +00 6.460 e 5.6838 0.9056 15.933 +00 1.765 e 1.6177 0.1274 7.873 +00 7.606 e 7.2616 0.8781 12.092 +00 9.027 e 8.9680 0.6257 6.977 +01 1.773 e 16.9764 0.7949 4.683 +01 6.664 e 59.2630 7.5048 12.664 +01 4.678 e 43.6638 4.4560 10.205

Tabel 2.5. Perhitungan Aktivitas Radionuklida dan Presisi pada Sampel Udara PM 2.5 Lokasi 1

50

3. Penentuan Aktivitas Radionuklida pada Sampel Udara PM 2.5 LOKASI 2 a. Data Hasil Perhitungan CPS Radionuklida Pb-210 Th-234 U-235 Ra-226 Pb-212 Pb-214 Ac-228 Pb-214 TI-208 Bi-214 Bi-212 Ac-228 Ac-228 Bi-214 K-40 Bi-24

Energi (KeV) 46.52 63.26 143.76 185.99 238.63 295.22 338.40 352.00 583.14 609.20 727.17 911.07 968.90 1120.28 1460.28 1764.51

Lokasi 2-1 (net area) 106 144 111 491 497 227 139 749 257 704 38 185 251 267 3092 427

Lokasi 2-2 (net area) 112 145 124 454 576 243 127 777 243 748 35 186 243 230 3114 457

Lokasi 2-3 (net area) 117 182 113 450 588 239 129 717 245 755 36 209 211 246 3098 445

t cacah (sekon) 86400 86400 86400 86400 86400 86400 86400 86400 86400 86400 86400 86400 86400 86400 86400 86400

CPS 2-1 0.001227 0.001667 0.001285 0.005683 0.005752 0.002627 0.001609 0.008669 0.002975 0.008148 0.000440 0.002141 0.002905 0.003090 0.035787 0.004942

CPS 2-2 0.001296 0.001678 0.001435 0.005255 0.006667 0.002813 0.001470 0.008993 0.002813 0.008657 0.000405 0.002153 0.002813 0.002662 0.036042 0.005289

CPS 2-3 0.001354 0.002106 0.001308 0.005208 0.006806 0.002766 0.001493 0.008299 0.002836 0.008738 0.000417 0.002419 0.002442 0.002847 0.035856 0.005150

Tabel 2.6. Perhitungan CPS Radionuklida pada Sampel Udara PM 2.5 Lokasi 2

51

b. Data Hasil Perhitungan CPS Bersih Radionuklida Pb-210 Th-234 U-235 Ra-226 Pb-212 Pb-214 Ac-228 Pb-214 TI-208 Bi-214 Bi-212 Ac-228 Ac-228 Bi-214 K-40 Bi-24

Energi (KeV) 46.52 63.26 143.76 185.99 238.63 295.22 338.40 352.00 583.14 609.20 727.17 911.07 968.90 1120.28 1460.28 1764.51

CPS bersih 2-1 0.00034 0.00130 0.00068 0.00223 0.00012 0.00041 0.00088 0.00091 0.00070 -0.00050 0.00015 0.00043 0.00134 0.00015 0.00156 0.00125

CPS bersih 2-2 0.00041 0.00132 0.00083 0.00180 0.00103 0.00059 0.00074 0.00123 0.00054 0.00036 0.00012 0.00044 0.00125 0.00115 0.00181 0.00160

CPS bersih 2-3 0.00047 0.00174 0.00071 0.00176 0.00117 0.00054 0.00077 0.00054 0.00056 0.00044 0.00013 0.00071 0.00088 0.00133 0.00163 0.00146

Efisiensi 0.005714 0.006922 0.050233 0.042808 0.03667 0.032131 0.029519 0.03545 0.021054 0.02049 0.018357 0.015959 0.01536 0.014036 0.011906 0.010586

Probabilitas 0.4 0.039 0.105 0.0328 0.43 0.192 0.1201 0.371 0.86 0.4609 0.118 0.29 0.1746 0.1504 0.107 0.1592

Tabel 2.7. Perhitungan CPS Bersih Radionuklida pada Sampel Udara PM 2.5 Lokasi 2

52

c. Data Hasil Perhitungan Aktivitas Radionuklida Energi Massa akhir Aktivitas Radionuklida (KeV) (gram) 2-1 Pb-210 46.52 0.97385 0.1543 Th-234 63.26 0.97385 4.9601 U-235 143.76 0.97385 0.1329 Ra-226 185.99 0.97385 1.6308 Pb-212 238.63 0.97385 0.0075 Pb-214 295.22 0.97385 0.0674 Ac-228 338.40 0.97385 0.2559 Pb-214 352.00 0.97385 0.0711 TI-208 583.14 0.97385 0.0396 Bi-214 609.20 0.97385 -0.0545 Bi-212 727.17 0.97385 0.0713 Ac-228 911.07 0.97385 0.0950 Ac-228 968.90 0.97385 0.5126 Bi-214 1120.28 0.97385 0.0751 K-40 1460.28 0.97385 1.2563 Bi-24 1764.51 0.97385 0.7616

Aktivitas 2-2 0.1855 5.0042 0.1622 1.3176 0.0671 0.0983 0.2157 0.0964 0.0304 0.0390 0.0549 0.0976 0.4771 0.5574 1.4616 0.9732

Aktivitas 2-3 0.2115 6.6331 0.1375 1.2838 0.0761 0.0905 0.2224 0.0422 0.0317 0.0478 0.0604 0.1566 0.3353 0.6474 1.3123 0.8886

Volume Udara (m3) 699.1 699.1 699.1 699.1 699.1 699.1 699.1 699.1 699.1 699.1 699.1 699.1 699.1 699.1 699.1 699.1

Massa awal (gram) 0.94867 0.94867 0.94867 0.9487 0.94867 0.9487 0.94867 0.94867 0.94867 0.94867 0.94867 0.94867 0.94867 0.94867 0.94867 0.94867

Massa Debu (gram) 0.02518 0.02518 0.02518 0.02518 0.02518 0.02518 0.02518 0.02518 0.02518 0.02518 0.02518 0.02518 0.02518 0.02518 0.02518 0.02518

Tabel 2.8. Perhitungan Aktivitas Radionuklida pada Sampel Udara PM 2.5 Lokasi 2

53

d. Data Hasil Perhitungan Aktivitas Radionuklida dan Presisinya Aktivitas Aktivitas Aktivitas Aktivitas Aktivitas Radio- Energi 2-1 2-2 2-3 2-1 2-2 nuklida (KeV) 3 3 3 3 (Bq/m ) (Bq/m ) (Bq/m ) (μBq/m ) (μBq/m3) Pb-210 46.52 5.556 e-06 6.680 e-06 7.616 e-06 5.5562 6.6799 -04 -04 -04 Th-234 63.26 1.787 e 1.802 e 2.389 e 178.6528 180.2385 -06 -06 -06 U-235 143.76 4.788 e 5.843 e 4.951 e 4.7883 5.8434 -05 -05 -05 Ra-226 185.99 5.874 e 4.746 e 4.624 e 58.7379 47.4578 -07 -06 -06 Pb-212 238.63 2.715 e 2.416 e 2.742 e 0.2715 2.4161 -06 -06 -06 Pb-214 295.22 2.429 e 3.539 e 3.261 e 2.4286 3.5388 -06 -06 -06 Ac-228 338.40 9.217 e 7.768 e 8.009 e 9.2168 7.7679 -06 -06 -06 Pb-214 352.00 2.560 e 3.472 e 1.519 e 2.5604 3.4718 -06 -06 -06 TI-208 583.14 1.426 e 1.095 e 1.143 e 1.4264 1.0954 -06 -06 -06 Bi-214 609.20 -1.964 e 1.405 e 1.722 e -1.9642 1.4052 -06 -06 -06 Bi-212 727.17 2.569 e 1.976 e 2.174 e 2.5690 1.9762 -06 -06 -06 Ac-228 911.07 3.422 e 3.515 e 5.642 e 3.4222 3.5147 -05 -05 -05 Ac-228 968.90 1.846 e 1.719 e 1.208 e 18.4622 17.1853 -06 -05 -05 Bi-214 1120.28 2.704 e 2.007 e 2.332 e 2.7037 20.0750 -05 -05 -05 K-40 1460.28 4.525 e 5.264 e 4.727 e 45.2503 52.6426 -05 -05 -05 Bi-24 1764.51 2.743 e 3.505 e 3.200 e 27.4321 35.0522

Aktivitas Rata2-3 rata (μBq/m3) 7.6164 6.6175 238.9085 199.2666 4.9506 5.1941 46.2383 50.8113 2.7419 2.5790 3.2612 3.0762 8.0094 8.3313 1.5189 3.0161 1.1427 1.2215 1.7224 1.5638 2.1738 2.2397 5.6420 3.4685 12.0776 17.8237 23.3194 21.6972 47.2664 48.3864 32.0041 31.4961

Standar Deviasi 1.0315 34.3400 0.5681 6.8916 0.2304 0.5778 0.7763 0.6444 0.1790 0.2244 0.3019 0.0654 0.9029 2.2942 3.8213 3.8353

Presisi 15.5875 17.2332 10.9375 13.5632 8.9319 18.7819 9.3175 21.3658 14.6552 14.3471 13.4782 1.8856 5.0658 10.5736 7.8976 12.1772

Tabel 2.9. Perhitungan Aktivitas Radionuklida dan Presisi pada Sampel Udara PM 2.5 Lokasi 2

54

4. Penentuan Aktivitas Radionuklida pada Sampel Udara PM 2.5 LOKASI 3 a. Data Hasil Perhitungan CPS Energi Lokasi 3-1 Radiouklida (KeV) (net area) Pb-210 46.52 83 Th-234 63.26 167 U-235 143.76 61 Ra-226 185.99 489 Pb-212 238.63 565 Pb-214 295.22 278 Ac-228 338.40 130 Pb-214 352.00 789 TI-208 583.14 330 Bi-214 609.20 979 Bi-212 727.17 71 Ac-228 911.07 358 Ac-228 968.90 114 Bi-214 1120.28 465 K-40 1460.28 3052 Bi-24 1764.51 465

Lokasi 3-2 (net area) 110 126 83 122 573 324 99 805 196 906 30 354 225 406 3131 472

Lokasi 3-3 (net area) 34 188 63 406 804 483 74 698 282 869 34 301 209 392 3019 441

t cacah (sekon) 86400 86400 86400 86400 86400 86400 86400 86400 86400 86400 86400 86400 86400 86400 86400 86400

CPS 3-1

CPS 3-2

CPS 3-3

0.000961 0.001933 0.000706 0.005660 0.006539 0.003218 0.001505 0.009132 0.003819 0.011331 0.000822 0.004144 0.001319 0.005382 0.035324 0.005382

0.001273 0.001458 0.000961 0.001412 0.006632 0.003750 0.001146 0.009317 0.002269 0.010486 0.000347 0.004097 0.002604 0.004699 0.036238 0.005463

0.000394 0.002176 0.000729 0.004699 0.009306 0.005590 0.000856 0.008079 0.003264 0.010058 0.000394 0.003484 0.002419 0.004537 0.034942 0.005104

Tabel 2.10. Perhitungan CPS Radionuklida pada Sampel Udara PM 2.5 Lokasi 3

55

b. Data Hasil Perhitungan CPS Bersih Energi Radionuklida CPS bersih 3-1 (KeV) Pb-210 46.52 0.0000772 Th-234 63.26 0.0015702 U-235 143.76 0.0001042 Ra-226 185.99 0.0022068 Pb-212 238.63 -0.0007639 Pb-214 295.22 0.0009954 Ac-228 338.40 0.0007793 Pb-214 352.00 0.0013735 TI-208 583.14 0.0015432 Bi-214 609.20 0.0026813 Bi-212 727.17 0.0005324 Ac-228 911.07 0.0014776 Ac-228 968.90 -0.0002469 Bi-214 1120.28 0.0024460 K-40 1460.28 0.0010957 Bi-24 1764.51 0.0016898

CPS bersih 3-2

CPS bersih 3-3

0.0003897 0.0010957 0.0003588 -0.0020409 -0.0006713 0.0015278 0.0004205 0.0015586 -0.0000077 0.0018364 0.0000579 0.0014313 0.0010378 0.0017631 0.0020100 0.0017708

-0.0004900 0.0018133 0.0001273 0.0012461 0.0020023 0.0033681 0.0001312 0.0003202 0.0009877 0.0014082 0.0001042 0.0008179 0.0008526 0.0016011 0.0007137 0.0014120

Efisiensi 0.005714 0.006922 0.050233 0.042808 0.03667 0.032131 0.029519 0.03545 0.021054 0.02049 0.018357 0.015959 0.01536 0.014036 0.011906 0.010586

Probabilitas 0.4 0.039 0.105 0.0328 0.43 0.192 0.1201 0.371 0.86 0.4609 0.118 0.29 0.1746 0.1504 0.107 0.1592

Tabel 2.11. Perhitungan CPS Bersih Radionuklida pada Sampel Udara PM 2.5 Lokasi 3

56

c. Data Hasil Perhitungan Aktivitas Radionuklida Energi Massa akhir Aktivitas Aktivitas Radionuklida (KeV) (gram) 3-1 3-2 Pb-210 46.52 0.99335 0.03399 0.17163 Th-234 63.26 0.99335 5.85546 4.08587 U-235 143.76 0.99335 0.01988 0.06848 Ra-226 185.99 0.99335 1.58219 -1.46325 Pb-212 238.63 0.99335 -0.04877 -0.04286 Pb-214 295.22 0.99335 0.16243 0.24931 Ac-228 338.40 0.99335 0.22129 0.11941 Pb-214 352.00 0.99335 0.10513 0.11930 TI-208 583.14 0.99335 0.08580 -0.00043 Bi-214 609.20 0.99335 0.28582 0.19576 Bi-212 727.17 0.99335 0.24743 0.02689 Ac-228 911.07 0.99335 0.32141 0.31134 Ac-228 968.90 0.99335 -0.09268 0.38956 Bi-214 1120.28 0.99335 1.16644 0.84079 K-40 1460.28 0.99335 0.86583 1.58837 Bi-24 1764.51 0.99335 1.00940 1.05779

Aktivitas 3-3 -0.21581 6.76183 0.02430 0.89344 0.12784 0.54961 0.03725 0.02451 0.05491 0.15011 0.04841 0.17791 0.32005 0.76352 0.56401 0.84347

Volume Udara (m3) 701.7 701.7 701.7 701.7 701.7 701.7 701.7 701.7 701.7 701.7 701.7 701.7 701.7 701.7 701.7 701.7

Massa awal Massa debu (gram) (gram) 0.95289 0.04046 0.95289 0.04046 0.95289 0.04046 0.95289 0.04046 0.95289 0.04046 0.95289 0.04046 0.95289 0.04046 0.95289 0.04046 0.95289 0.04046 0.95289 0.04046 0.95289 0.04046 0.95289 0.04046 0.95289 0.04046 0.95289 0.04046 0.95289 0.04046 0.95289 0.04046

Tabel 2.12. Perhitungan Aktivitas Radionuklida pada Sampel Udara PM 2.5 Lokasi 3

57

d. Data Hasil Perhitungan Aktivitas Radionuklida dan presisinya Aktivitas Aktivitas Aktivitas Aktivitas Aktivitas Aktivitas Radio- Energi RataStandar 3-1 3-1 3-1 3-1 3-1 3-1 nuklida (KeV) rata Deviasi (Bq/m3) (Bq/m3) (Bq/m3) (μBq/m3) (μBq/m3) (μBq/m3) Pb-210 46.52 1.9596 e-06 9.8960 e-06 -1.2443 e-05 1.9596 9.8960 -12.4434 5.9278 5.6119 -04 -04 -04 Th-234 63.26 3.3763 e 2.3559 e 3.8989 e 337.6256 235.5913 389.8870 321.0346 78.4744 -06 -06 -06 U-235 143.76 1.1464 e 3.9486 e 1.4011 e 1.1464 3.9486 1.4011 2.1654 1.5496 -05 -05 -05 Ra-226 185.99 9.1229 e -8.4371 e 5.1516 e 91.2293 -84.3712 51.5158 19.4580 92.0851 -06 -06 -06 Pb-212 238.63 -2.8120 e -2.4712 e 7.3710 e -2.8120 -2.4712 7.3710 0.6959 5.7833 -06 -05 -05 Pb-214 295.22 9.3655 e 1.4375 e 3.1690 e 9.3655 14.3750 31.6903 18.4769 11.7140 -05 -06 -06 Ac-228 338.40 1.2760 e 6.8852 e 2.1477 e 12.7598 6.8852 2.1477 7.2642 5.3162 -06 -06 -06 Pb-214 352.00 6.0617 e 6.8790 e 1.4133 e 6.0617 6.8790 1.4133 4.7847 2.9482 -06 -08 -06 TI-208 583.14 4.9473 e -2.4736 e 3.1662 e 4.9473 -0.0247 3.1662 2.6963 2.5191 -05 -05 -06 Bi-214 609.20 1.6481 e 1.1287 e 8.6553 e 16.4806 11.2874 8.6553 12.1411 3.9819 -05 -06 -06 Bi-212 727.17 1.4267 e 1.5508 e 2.7914 e 14.2670 1.5508 2.7914 6.2030 7.0111 -05 -05 -05 Ac-228 911.07 1.8532 e 1.7952 e 1.0258 e 18.5324 17.9518 10.2582 15.5808 4.6187 -06 -05 -05 Ac-228 968.90 -5.3442 e 2.2462 e 1.8454 e -5.3442 22.4623 18.4541 11.8574 15.0312 -05 -05 Bi-214 1120.28 6.7257 e-05 4.8480 e 4.4024 e 67.2566 48.4799 44.0245 53.2537 12.3298 -05 -05 -05 K-40 1460.28 4.9924 e 9.1585 e 3.2521 e 49.9236 91.5852 32.5206 58.0098 30.3512 -05 -05 -05 Bi-24 1764.51 5.8202 e 6.0992 e 4.8634 e 58.2018 60.9923 48.6344 55.9428 6.4813

Presisi 0.9467 0.2444 0.7156 4.7325 8.3104 0.6340 0.7318 0.6162 0.9343 0.3280 1.1303 0.2964 1.2677 0.2315 0.5232 0.1159

Tabel 2.13. Perhitungan Aktivitas Radionuklida dan Presisi pada Sampel Udara PM 2.5 Lokasi 3

58

LAMPIRAN 3. DOKUMENTASI

Gambar 3.1 . Seperangkat Alat Spektrometer Gamma

Gambar 3.2 . Seperangkat Komputer

59

Gambar 3.3. Sampel Udara PM 2,5

Gambar 3.4 . Sampel berada di dalam Desikator

Gambar 3.5 . Kertas Filter

Gambar 3.6 . Neraca Analitik

Gambar 3.7. Sampel udara PM 2,5 pada Kertas Filter

60