Rod Co

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What thickness of lead would be adequate in shielding ~75 μCi of gamma radiation from multiple sources?

I have some gamma source rods (Co-60, Co-57, Na-22, Cs-137, Mn-54, Ba-133, Cd-109) and I would like to get some lead to shield them. I know that gamma radiation can not be completely shielded, so what would be a thickness that would do it well enough?

I'll guess one inch of lead will halve the radiation. If so, 2 inches will reduce it to 1/4. Neil

Find Rod Co On eBay Below:

ANTIQUE 4 Pc SAMSON STEEL FISHING PACK ROD UNION HARDWARE Co TORRINGTON CONN USA
ANTIQUE 4 Pc SAMSON STEEL FISHING PACK ROD UNION HARDWARE Co TORRINGTON CONN USA
$28.00
SABRE CUSTOM MADE SURF ROD SC301 12 CALIFORNIA TACKLE CO CARSON CALIFORNIA
SABRE CUSTOM MADE SURF ROD SC301 12 CALIFORNIA TACKLE CO CARSON CALIFORNIA
$79.99
WECO LA CAL Guide free antique steel fishing rod hollow
WECO LA CAL Guide free antique steel fishing rod hollow
$98.00
2 Vintage Cork Rod Handles Shakespeare  Union Hardware Co Lot N
2 Vintage Cork Rod Handles Shakespeare Union Hardware Co Lot N
$6.99
Vintage Antique Powell metal fishing rod Thos E Wilson  Co lot10208
Vintage Antique Powell metal fishing rod Thos E Wilson Co lot10208
$95.00
Bamboo Fly Rod Cross Single Built by South Bend Bait Co 9 3 Piece Extra Tip
Bamboo Fly Rod Cross Single Built by South Bend Bait Co 9 3 Piece Extra Tip
$46.75
Vintage HORROCKS IBBOTSON COFlorida Arrow Bamboo Fishing Rod Reel Combo 73 Hex
Vintage HORROCKS IBBOTSON COFlorida Arrow Bamboo Fishing Rod Reel Combo 73 Hex
$200.00
DAVEY JONES LAKE CITY TACKLE CO CLEVELAND OHIO VINTAGE FISHING ROD
DAVEY JONES LAKE CITY TACKLE CO CLEVELAND OHIO VINTAGE FISHING ROD
$49.00
ANTIQUE 8X10 FISHING REPRINTED PHOTOGRAPH PRINT BRISTOL ROD COMPANY
ANTIQUE 8X10 FISHING REPRINTED PHOTOGRAPH PRINT BRISTOL ROD COMPANY
$11.99
vintage fiberglass fishing rod L Bamberger  Co 5 Nice Very Rare
vintage fiberglass fishing rod L Bamberger Co 5 Nice Very Rare
$60.00
Vintage ETCO Roos Steelhead 2 pc Split BambooSpinning Rod Empire Tackle Co8
Vintage ETCO Roos Steelhead 2 pc Split BambooSpinning Rod Empire Tackle Co8
$96.95
Goodwin Granger Vintage Bamboo 3 Piece 8 Fly Rod Made in Denver CO
Goodwin Granger Vintage Bamboo 3 Piece 8 Fly Rod Made in Denver CO
$255.00
Vintage Kiraku  Co 5 pc Fly Cast 8 Rod made in Japan Has Broken Repaired tip
Vintage Kiraku Co 5 pc Fly Cast 8 Rod made in Japan Has Broken Repaired tip
$9.99
Danielson Co Brown Eagle Spinning Rod 652DL 6 6 Danielson Company
Danielson Co Brown Eagle Spinning Rod 652DL 6 6 Danielson Company
$45.00
Vintage Goodwear Sporting Goods Co HI Bamboo Fishing Rod West Point L10729
Vintage Goodwear Sporting Goods Co HI Bamboo Fishing Rod West Point L10729
$120.00
NEW Genuine FE Thomas Rod Co Logo Hat Free Shipping Bamboo Rods Cap
NEW Genuine FE Thomas Rod Co Logo Hat Free Shipping Bamboo Rods Cap
$29.95
NEW Genuine FE Thomas Rod Co Logo T Shirt X Large Ships Free Bamboo Rod
NEW Genuine FE Thomas Rod Co Logo T Shirt X Large Ships Free Bamboo Rod
$29.95
Eagle Claw Quick Silver Wright  McGill Co GS300 8 Rod Graphite Composite
Eagle Claw Quick Silver Wright McGill Co GS300 8 Rod Graphite Composite
$45.00
Vintage Grampus Kiraku and Co Hexigonal Sectional Fishing Rod
Vintage Grampus Kiraku and Co Hexigonal Sectional Fishing Rod
$89.99
Vintage BETTS MFG CO Detroit Michigan 2 pc 6 3 Casting Rod
Vintage BETTS MFG CO Detroit Michigan 2 pc 6 3 Casting Rod
$19.00
Fly fishing rod South Bend Bait Co 59 9 with case and sock
Fly fishing rod South Bend Bait Co 59 9 with case and sock
$35.00
Vintage KIRAKU  CO Grampus Bamboo Fishing Rod and Freshwater Set  WOW
Vintage KIRAKU CO Grampus Bamboo Fishing Rod and Freshwater Set WOW
$89.00
Vintage Kiraku  Co 5 pc Fly Cast 8 Rod made in Japan with wooden box
Vintage Kiraku Co 5 pc Fly Cast 8 Rod made in Japan with wooden box
$45.00
Vintage Grampus Kiraku and Co Hexigonal Wood Sectional Fishing Rod
Vintage Grampus Kiraku and Co Hexigonal Wood Sectional Fishing Rod
$179.99
RARE PEPPER TACKLE CO PEPPEROD 2 PIECE BAMBOO 1920S TROLLING BOAT ROD
RARE PEPPER TACKLE CO PEPPEROD 2 PIECE BAMBOO 1920S TROLLING BOAT ROD
$75.00
Very Fine Antique Goodwin Granger 4 Piece Fly Rod w Bag Tube Denver CO NR
Very Fine Antique Goodwin Granger 4 Piece Fly Rod w Bag Tube Denver CO NR
$280.00
Rare 1960s Danielson Mfg Co Mercer Island Wash Glass Fly Rod
Rare 1960s Danielson Mfg Co Mercer Island Wash Glass Fly Rod
$68.00
Vintage American Fork and Hoe Co Coated Spring Steel Fishing Rod
Vintage American Fork and Hoe Co Coated Spring Steel Fishing Rod
$30.00
Vintage Western Hoegee Co Custom Crafted SP50W 5 Spinning Rod Pole
Vintage Western Hoegee Co Custom Crafted SP50W 5 Spinning Rod Pole
$40.00
Vintage Unique Western Hoegee Co Custom Crafted SP71C 7 Spinning Rod Pole
Vintage Unique Western Hoegee Co Custom Crafted SP71C 7 Spinning Rod Pole
$35.00
BOB REEDER MFG CO REEDER ROD SPIN ROD 92 11 OZ FIBERGLASS SHAFT CORK VINTAGE
BOB REEDER MFG CO REEDER ROD SPIN ROD 92 11 OZ FIBERGLASS SHAFT CORK VINTAGE
$83.29
RARE VINTAGE LIFE TIME MFG CO SPIN CHAMP ROD REEL COMBO 7 RODCHIGOILL
RARE VINTAGE LIFE TIME MFG CO SPIN CHAMP ROD REEL COMBO 7 RODCHIGOILL
$89.99


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